Nabble - Papervision3D

Re: Trouble with Andy's Dragging in 3d - The Right Way

2009-11-10T16:22:40Z

Oh - sorry this was due to my camera's Y position - i guess it was working but I couldn't see it.

nospam@... wrote:

Hey guys,

I am trying to follow Andy's code for his article
(http://blog.zupko.info/?p=143) Dragging in 3d - The Right Way.

Key difference being, I am not doing click-activated dragging, i just want
a loaded DAE to follow my mouse around as though it was hovering over a
Plane (the primitive not an aircraft).

In my setup I create the Plane3d (_plane) and the hotspot just like in
Andy's sample.  Then, in my render loop my code is like:

override protected function onRenderTick(e:Event=null):void
{
   var cameraPosition:Number3D = new Number3D(camera.x, camera.y, camera.z);
   var ray:Number3D = camera.unproject(viewport.containerSprite.mouseX,
viewport.containerSprite.mouseY);
   ray = Number3D.add(ray, cameraPosition);
   var intersect:Number3D =
_plane.getIntersectionLineNumbers(cameraPosition, ray);
   hotspot.x = -intersect.x;
   hotspot.z = -intersect.z;
   super.onRenderTick( e );
}

My problem is the hotspot never moves.  When traced out, the "intersect" X
and Z values are always the same, even though the mouse X/Y's are
changing, and the values of the ray keep changing, the intersect is always
0,0,-300.

Any help or suggestions would be very much appreciated!

Cheers,
mark


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Trouble with Andy's Dragging in 3d - The Right Way

2009-11-10T11:02:45Z

Hey guys,

I am trying to follow Andy's code for his article
(http://blog.zupko.info/?p=143) Dragging in 3d - The Right Way.

Key difference being, I am not doing click-activated dragging, i just want
a loaded DAE to follow my mouse around as though it was hovering over a
Plane (the primitive not an aircraft).

In my setup I create the Plane3d (_plane) and the hotspot just like in
Andy's sample. Then, in my render loop my code is like:

override protected function onRenderTick(e:Event=null):void
{
var cameraPosition:Number3D = new Number3D(camera.x, camera.y, camera.z);
var ray:Number3D = camera.unproject(viewport.containerSprite.mouseX,
viewport.containerSprite.mouseY);
ray = Number3D.add(ray, cameraPosition);
var intersect:Number3D =
_plane.getIntersectionLineNumbers(cameraPosition, ray);
hotspot.x = -intersect.x;
hotspot.z = -intersect.z;
super.onRenderTick( e );
}

My problem is the hotspot never moves. When traced out, the "intersect" X
and Z values are always the same, even though the mouse X/Y's are
changing, and the values of the ray keep changing, the intersect is always
0,0,-300.

Any help or suggestions would be very much appreciated!

Cheers,
mark

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InputText on the material

2009-11-10T05:28:04Z

sorry for my english...

I had a problem with the addition of a text input field on a material and I solved with this code:

private var tf:TextField = new TextField();
// embed font important
private var ff:fontmail = new fontmail();
var myFormat:TextFormat = new TextFormat();

myFormat.font= ff.fontName;
myFormat.color= 0x8D6952;
myFormat.size= 20;

tf.y = 700
tf.x = 1530
// important!
tf.type = TextFieldType.INPUT;
tf.width = 345
tf.height = 150
tf.border = false;
tf.multiline = true
tf.wordWrap = true
tf.antiAliasType = AntiAliasType.ADVANCED;
tf.defaultTextFormat = myFormat;
tf.setTextFormat(myFormat);
// important!
tf.embedFonts = true;
tf.text = ""

//movie on library
var matc:Mat_C = new Mat_C()
materialeC = new MovieMaterial(matc);
materialeC.doubleSided = true
materialeC.smooth = true
materialeC.interactive = true
//important!
materialeC.animated = true
// add text on the material
matc.addChild(tf);

// optional ---> i revert the text for the view into the cylinder
var nuova_matrice:Matrix = tf.transform.matrix
nuova_matrice.a = -1
tf.transform.matrix = nuova_matrice

// important for the focus into TextField
tf.addEventListener(MouseEvent.CLICK, onInputClick)

function onInputClick1(e:MouseEvent){
stage.focus = tf;

}

That is all I hope that helps someone!

my example: http://www.grafiweb.it.

Re: Papervision3D Digest, Vol 38, Issue 16

2009-11-09T17:32:25Z

Thank you guys! I will try that tomorrow as soon as I get into work and let you know my results, Thank you very, very much!

federico contreras

[snip hilarity NO U!]

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Re: Problem with renderer chugging when simple plane objects are viewed edge-on

2009-11-09T13:41:27Z

Makc, a cuddly little troll.
Love him :p
xx

2009/11/9 Makc <makc.the.great@...>

On Mon, Nov 9, 2009 at 8:34 PM, Andy Zupko <azupko@...> wrote:
> You could insert this almost exactly into pv3d BitmapMaterial

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Re: Problem with renderer chugging when simple plane objects are viewed edge-on

2009-11-09T12:10:50Z

On Mon, Nov 9, 2009 at 8:34 PM, Andy Zupko <azupko@...> wrote:
> You could insert this almost exactly into pv3d BitmapMaterial

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no_u.jpg (37K) Download Attachment

Re: Problem with renderer chugging when simple plane objects are viewed edge-on

2009-11-09T10:34:47Z

This is a known problem with the flash player - not the engine specifically. There are a number of ways you can approach a solution. Away3D has a built in feature which will turn off smoothing at high angles (at least they used too). You could grab that code and easily insert it into the pv3d draw routine:

//from away3d BitmapMaterial

a2 = (v1x = v1.x) - (v0x = v0.x);

b2 = (v1y = v1.y) - (v0y = v0.y);

c2 = (v2x = v2.x) - v0x;

d2 = (v2y = v2.y) - v0y;

smooth && (v0x*(d2 - b2) - v1x*d2 + v2x*b2 > 400)

You could insert this almost exactly into pv3d BitmapMaterial, just calculate a2, b2, b2, d2 with a2 = x1-x0, etc:

//line 145 of BitmapMaterial

graphics.beginBitmapFill( altBitmap ? altBitmap : bitmap, _localMatrix, tiled, smooth && (v0x*(d2 - b2) - v1x*d2 + v2x*b2 > 400));

that should do the trick

OR you could calculate the normal of the plane that is being used. If it is close to 0, then you can turn of smoothing. Would be slightly less calculations, depending how many segments are on the plane.

-andy

On Nov 9, 2009, at 12:06 PM, Federico Contreras wrote:

I was programming a website for a client and found that my project was chugging very badly when my planes were spinning, after a bit of troubleshooting, I determined that when the planes rotate to be viewed edge on or almost edge on, flash chugs for a second before continuing to render. This only happens when I turn smoothing on.

I attached the issue report I made on the googlecode (http://code.google.com/p/papervision3d/issues/detail?id=234) page, but I am a fairly inexperienced PV3D coder so it could be me doing something wrong. I did try it in a completely isolated file with just one camera and one plane and I still reproduced the issue, leading me to believe that it’s not my code (I hope!).

Can anyone advise / confirm if this is an actual problem?

Thanks in advance fellas and thank you to everyone developing this awesome piece of software!
Federico Contreras

Steps to reproduce the error:

1. Grab latest SVN copy of papervision (version 931 according to tortoise)

2. Create a rotating plane object.

3. Texture said plane with a bitmapFileMaterial that is externally loaded
and has smoothing on (BitmapFileMaterial.smoothing = true) (I am using
transparent PNGs, but have tested and reproduced the behaviour with regular
PNGs).

4. When the plane rotates to either edge on or very close to edge on, the
viewport will seize for an indeterminate amount of time, it will never
actually crash, but it's chugging like mad ...

What is the expected output? What do you see instead?

Expect smooth performance, instead flash seems to lockup when the planes
are viewed edge-on.

What version of the product are you using? On what operating system?
SVN: 931, Windows XP 32-bit

Please provide any additional information below.

When smoothing for the material is turned off, the problem disappears entirely.

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Re: branches

2009-11-09T10:19:26Z

Hi all :)

You are right that this is a Flash 10 only branch. But the difference
is slight, it's just one class, the BitmapMaterial.
When using the "precise" property the material will no longer
tesselate the triangles but use fp10 build-in perspective correction.
The initial tests very slightly disappointing but right now I'm
working on a project that uses lots of precise and it runs
surprisingly smooth.
I've run some tests on other fp10 stuff ( vectors vs arrays, native
matrix and so ) but the speed gains weren't worthy breaking the
compatibility.

So right now the idea behind fp10 branch is to provide painless and
easy way of updating existing 2.1 projects to fp10 while awaiting the
3.0 :)

Is it safe for production? We haven't done any extensive testing yet,
but as I said I'm working on a project using this branch and I haven't
encountered any (new) bugs yet.

cheers,
Mark

On Nov 8, 2009, at 6:49 PM, Heinrich Ruoff wrote:

> Hi to all!
>
> What is the difference between trunk\as3\trunk\src and trunk\branches
> \fp10\src?
> I guess fp10 is Flash 10 only?
> Is it safe to use this branch for production?
>
> Heinrich
> _______________________________________________
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Problem with renderer chugging when simple plane objects are viewed edge-on

2009-11-09T10:06:37Z

I was programming a website for a client and found that my project was chugging very badly when my planes were spinning, after a bit of troubleshooting, I determined that when the planes rotate to be viewed edge on or almost edge on, flash chugs for a second before continuing to render. This only happens when I turn smoothing on.

I attached the issue report I made on the googlecode (http://code.google.com/p/papervision3d/issues/detail?id=234) page, but I am a fairly inexperienced PV3D coder so it could be me doing something wrong. I did try it in a completely isolated file with just one camera and one plane and I still reproduced the issue, leading me to believe that it’s not my code (I hope!).

Can anyone advise / confirm if this is an actual problem?

Thanks in advance fellas and thank you to everyone developing this awesome piece of software!

Federico Contreras

Steps to reproduce the error:

1. Grab latest SVN copy of papervision (version 931 according to tortoise)

2. Create a rotating plane object.

3. Texture said plane with a bitmapFileMaterial that is externally loaded

and has smoothing on (BitmapFileMaterial.smoothing = true) (I am using

transparent PNGs, but have tested and reproduced the behaviour with regular

PNGs).

4. When the plane rotates to either edge on or very close to edge on, the

viewport will seize for an indeterminate amount of time, it will never

actually crash, but it's chugging like mad ...

What is the expected output? What do you see instead?

Expect smooth performance, instead flash seems to lockup when the planes

are viewed edge-on.

What version of the product are you using? On what operating system?

SVN: 931, Windows XP 32-bit

Please provide any additional information below.

When smoothing for the material is turned off, the problem disappears entirely.

Get a great deal on Windows 7 and see how it works the way you want. Check out the offers on Windows 7now.
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Re: Branches

2009-11-08T12:39:30Z

I think that's the branch updated by Seb to use the FP10 features but is basically the same as the trunk.

Should have a bit of a performance boost compared to the FP9 version

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branches

2009-11-08T09:49:54Z

Hi to all!

What is the difference between trunk\as3\trunk\src and trunk\branches\fp10\src?
I guess fp10 is Flash 10 only?
Is it safe to use this branch for production?

Heinrich

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diff Viewport3D and BitmapViewport3D

2009-11-05T11:15:59Z

Take a look at:

http://codejockeyscorner.blogspot.com/2009/04/papervision3d-anaglyph-scene.html

On Thu, Nov 5, 2009 at 10:32 AM, <papervision3d-request@...> wrote:

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Today's Topics:

1. Re: How to orbit to a point (Lee Probert)
2. diff Viewport3D and BitmapViewport3D (Lars Schwarz)
3. Re: How to orbit to a point (Strange Loop Studios)

---------- Forwarded message ----------
From: Lee Probert <leeprobert@...>
To: papervision3d@...
Date: Thu, 5 Nov 2009 15:21:46 +0000
Subject: Re: [Papervision3D] How to orbit to a point
Hi Andy. This is slightly more complicated than it at first appears although I'm sure you would have a very elegant solution. The simplest way to describe the problem is like so ...

I have objects being spawned that then need to point to a target in 3D space and start to travel to this point but not directly. Their behaviour needs to appear erratic so I am attempting to move them in an arc towards this point. I don't want to tween on a bezier because a few ticks later they need to change course slightly (but still heading towards the target).

This is a 3D version of the Swarm class in the new Hype framework. My first experiment is located here : http://rezzynet.com/swarm/Main.html

Imagine firing a missile from one point to another but the missile is drunk!

:-)

On Thu, Nov 5, 2009 at 3:11 PM, Andy Zupko <azupko@...> wrote:

Just use camera.orbit(pitch, yaw) where those are absolute values of where the camera should be around an object.

0, 0 is the top of the object (straight up), so to rotate around the objects side:

camera.orbit(90, yaw++); //onEnterFrame

position the camera the distance you want from the object prior to calling this.

Quats and such aren't the best/fastest solution here :P

-andy

On Nov 5, 2009, at 8:37 AM, John Grden wrote:

yeah if math is your need, Andy's your man ;)

On Thu, Nov 5, 2009 at 9:30 AM, Lee Probert <leeprobert@...> wrote:

Yea, I did ... well I left a comment on that post anyway. I'll keep on trucking then and see what I can cobble together.

Thanks! (LOL ... I read your blog)

On Thu, Nov 5, 2009 at 2:25 PM, John Grden <neoriley@...> wrote:

lol funny that andy's blog is the one you pointed to, I was just about to say "Ask Andy"

On Thu, Nov 5, 2009 at 9:21 AM, Lee Probert <leeprobert@...> wrote:

BTW ... this post is the closest thing I've found to what I need to do (I think) ... http://blog.zupko.info/?p=221

Although I think this may be over-complicating the matter too much.

:-)

On Thu, Nov 5, 2009 at 2:13 PM, Lee Probert <leeprobert@...> wrote:

Hi John. Thanks for the response. I'm trying to create a 3D version of the 'Swarm' class from Joshua and Branden's new Hype framework. At the moment the way this works (in 2D) is that each object has a target point that it tries to get to but it attempts to get there by following a circular path which has a bit of randomness to it to create a motion 'behaviour' that you can tweak. This is the code for doing that in 2D :

var clip:DisplayObject = target as DisplayObject;

var angle:Number = Math.atan2(_point.y - clip.y, _point.x - clip.x) * HypeMath.R2D;

var deltaAngle:Number = HypeMath.getDegreeDistance(clip.rotation, angle);

clip.rotation += deltaAngle * _turnEase + (Math.random() * _twitch * 2) - _twitch;

clip.x += Math.cos(clip.rotation * HypeMath.D2R) * _speed;

clip.y += Math.sin(clip.rotation * HypeMath.D2R) * _speed;

... what I'd like to do is mimic this by introducing the Z. I guess I need to work out the angle to the target point and then set the object off on an orbit from its current location to the new target.

My math is pretty poor. Any help or pointers would be appreciated.

My experiments so far with this are here : http://rezzynet.com

On Thu, Nov 5, 2009 at 2:02 PM, John Grden <neoriley@...> wrote:

if youdon't mind parenting the object that needs to "orbit", you can simply do that.

Or, you can easily do it with out that silly math crap in your render loop:

my3Dobj.x = my3Dobj.y = my3Dobj.z = 0; // or set it to the point in 3D space you want
my3Dobj.yaw(1); // rotate object
my3Dobj.moveBackward(1000);// or whatever distance the orbit is

then render

yay! orbit.

On Thu, Nov 5, 2009 at 5:50 AM, Lee Probert <leeprobert@...> wrote:

Can someone give me an example of the math I need to get an object to move in an orbit towards another point in 3D space. I think it has something to do with Quaternions. I want the object to point towards the target as well.

Thanks, Lee.

--
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http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
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twitter : @lyraspace
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Paddock Wood,
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http://lyraspace.com
http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

--
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http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
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Tonbridge,
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--
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http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

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--
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http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

---------- Forwarded message ----------
From: Lars Schwarz <lars.schwarz@...>
To: papervision3d@...
Date: Thu, 5 Nov 2009 16:31:01 +0100
Subject: [Papervision3D] diff Viewport3D and BitmapViewport3D
hi all,

i'm about to start a little pv3d project that's needs anaglyphs, so i
want to use
the BitmapViewport3D.

Before i start i was wondering if there are any mentionable diffs between these
two... interactivity seems to work on both, but is there anything else
that maybe
doesn't work with the BitmapViewport?

thanks: lars

---------- Forwarded message ----------
From: "Strange Loop Studios" <info@...>
To: <papervision3d@...>
Date: Thu, 5 Nov 2009 15:31:45 -0000
Subject: Re: [Papervision3D] How to orbit to a point
Hey Lee,

I've just checked out your experiments site and noticed you're doing some audio visualizations with PV. Cool! Me to, when i get time...
I've actually started to create a bit of a framework for audio visuals including PV and might be able to help you make your animations a lot more responsive across all frequencies bands.

Here's some of my older experiments pre framework - for inspiration!

http://deceptiveresolution.wordpress.com/2009/09/01/visualizing-an-rtmp-flv/
http://deceptiveresolution.wordpress.com/2008/10/15/sexed-up-as3-visualization/
http://deceptiveresolution.wordpress.com/2008/10/07/the-seed-of-a-big-idea/
http://www.strangeloopstudios.com/experiments/3dmp3/

If you want to chat about this or perhaps do some work together drop me a mail.

Nice work
Doug

----- Original Message ----- From: "John McCormack" <john@...>
To: <papervision3d@...>
Sent: Thursday, November 05, 2009 2:29 PM
Subject: Re: [Papervision3D] How to orbit to a point

Lee,

The graphics are stunning.

John

Lee Probert wrote:

Can someone give me an example of the math I need to get an object to move in an orbit towards another point in 3D space. I think it has something to do with Quaternions. I want the object to point towards the target as well.

Thanks, Lee.
--
http://lyraspace.com
http://blog.lyraspace.com
http://rezzynet.com

info@... <mailto:info@...>
skype: lee.probert
google/MSN : leeprobert@... <mailto:leeprobert@...>
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN
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Re: How to orbit to a point

2009-11-05T08:55:32Z

I posted this earlier for John. This is the 2D implementation of what I need ...

var clip:DisplayObject = target as DisplayObject;

var angle:Number = Math.atan2(_point.y - clip.y, _point.x - clip.x) * HypeMath.R2D;

var deltaAngle:Number = HypeMath.getDegreeDistance(clip.rotation, angle);

clip.rotation += deltaAngle * _turnEase + (Math.random() * _twitch * 2) - _twitch;

clip.x += Math.cos(clip.rotation * HypeMath.D2R) * _speed;

clip.y += Math.sin(clip.rotation * HypeMath.D2R) * _speed;

This code is run on an interval and the result is that the object (in 2D) attempts to orbit its target point while gradually moving towards it. The twitch value also makes the object move erratically.

I know from reading your blog that attempting to use cos and sin on the XY and XZ will not give me the results I need to achieve the same results. This is why I thought there may be a better way.

I'll try your suggested technique but if you do think there is a more mathematically elegant solution then I'd love to hear about it.

A good start would be the code to make an object rotate towards an arbitrary point.

thank you, Lee.

On Thu, Nov 5, 2009 at 4:22 PM, Andy Zupko <azupko@...> wrote:

Easiest way to get an "arc" nicely to something is to get each object its own velocity. ie:

var dx = targetX-object.x;

vX += dx.x * 0.01;

// 0.01 = some arbitrary number on how fast you want it to go - it will go faster the further away the object is.
// Another approach is to use direction and not total distance, just depends what you want. This will slow as it gets closer.

object.x += vX;

vX *= 0.95; // arbitrary number on how fast you want to dampen the motion - bigger number is longer to slow

do that for dy and dz as well.

Playing wtih the scale and damp will let your objects overshoot, bounce back, etc.

On Nov 5, 2009, at 9:21 AM, Lee Probert wrote:

Hi Andy. This is slightly more complicated than it at first appears although I'm sure you would have a very elegant solution. The simplest way to describe the problem is like so ...

I have objects being spawned that then need to point to a target in 3D space and start to travel to this point but not directly. Their behaviour needs to appear erratic so I am attempting to move them in an arc towards this point. I don't want to tween on a bezier because a few ticks later they need to change course slightly (but still heading towards the target).

This is a 3D version of the Swarm class in the new Hype framework. My first experiment is located here : http://rezzynet.com/swarm/Main.html

Imagine firing a missile from one point to another but the missile is drunk!

:-)

On Thu, Nov 5, 2009 at 3:11 PM, Andy Zupko <azupko@...> wrote:

Just use camera.orbit(pitch, yaw) where those are absolute values of where the camera should be around an object.

0, 0 is the top of the object (straight up), so to rotate around the objects side:

camera.orbit(90, yaw++); //onEnterFrame

position the camera the distance you want from the object prior to calling this.

Quats and such aren't the best/fastest solution here :P

-andy

On Nov 5, 2009, at 8:37 AM, John Grden wrote:

yeah if math is your need, Andy's your man ;)

On Thu, Nov 5, 2009 at 9:30 AM, Lee Probert <leeprobert@...> wrote:

Yea, I did ... well I left a comment on that post anyway. I'll keep on trucking then and see what I can cobble together.

Thanks! (LOL ... I read your blog)

On Thu, Nov 5, 2009 at 2:25 PM, John Grden <neoriley@...> wrote:

lol funny that andy's blog is the one you pointed to, I was just about to say "Ask Andy"

On Thu, Nov 5, 2009 at 9:21 AM, Lee Probert <leeprobert@...> wrote:

BTW ... this post is the closest thing I've found to what I need to do (I think) ... http://blog.zupko.info/?p=221

Although I think this may be over-complicating the matter too much.

:-)

On Thu, Nov 5, 2009 at 2:13 PM, Lee Probert <leeprobert@...> wrote:

Hi John. Thanks for the response. I'm trying to create a 3D version of the 'Swarm' class from Joshua and Branden's new Hype framework. At the moment the way this works (in 2D) is that each object has a target point that it tries to get to but it attempts to get there by following a circular path which has a bit of randomness to it to create a motion 'behaviour' that you can tweak. This is the code for doing that in 2D :

var clip:DisplayObject = target as DisplayObject;

var angle:Number = Math.atan2(_point.y - clip.y, _point.x - clip.x) * HypeMath.R2D;

var deltaAngle:Number = HypeMath.getDegreeDistance(clip.rotation, angle);

clip.rotation += deltaAngle * _turnEase + (Math.random() * _twitch * 2) - _twitch;

clip.x += Math.cos(clip.rotation * HypeMath.D2R) * _speed;

clip.y += Math.sin(clip.rotation * HypeMath.D2R) * _speed;

... what I'd like to do is mimic this by introducing the Z. I guess I need to work out the angle to the target point and then set the object off on an orbit from its current location to the new target.

My math is pretty poor. Any help or pointers would be appreciated.

My experiments so far with this are here : http://rezzynet.com

On Thu, Nov 5, 2009 at 2:02 PM, John Grden <neoriley@...> wrote:

if youdon't mind parenting the object that needs to "orbit", you can simply do that.

Or, you can easily do it with out that silly math crap in your render loop:

my3Dobj.x = my3Dobj.y = my3Dobj.z = 0; // or set it to the point in 3D space you want
my3Dobj.yaw(1); // rotate object
my3Dobj.moveBackward(1000);// or whatever distance the orbit is

then render

yay! orbit.

On Thu, Nov 5, 2009 at 5:50 AM, Lee Probert <leeprobert@...> wrote:

Can someone give me an example of the math I need to get an object to move in an orbit towards another point in 3D space. I think it has something to do with Quaternions. I want the object to point towards the target as well.

Thanks, Lee.

--
http://lyraspace.com
http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

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info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

--
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http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
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google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
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info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
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info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
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Tonbridge,
Kent.
TN12 6AN

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Re: How to orbit to a point

2009-11-05T08:22:18Z

Easiest way to get an "arc" nicely to something is to get each object its own velocity. ie:

var dx = targetX-object.x;

vX += dx.x * 0.01;

// 0.01 = some arbitrary number on how fast you want it to go - it will go faster the further away the object is.

// Another approach is to use direction and not total distance, just depends what you want. This will slow as it gets closer.

object.x += vX;

vX *= 0.95; // arbitrary number on how fast you want to dampen the motion - bigger number is longer to slow

do that for dy and dz as well.

Playing wtih the scale and damp will let your objects overshoot, bounce back, etc.

On Nov 5, 2009, at 9:21 AM, Lee Probert wrote:

Hi Andy. This is slightly more complicated than it at first appears although I'm sure you would have a very elegant solution. The simplest way to describe the problem is like so ...

I have objects being spawned that then need to point to a target in 3D space and start to travel to this point but not directly. Their behaviour needs to appear erratic so I am attempting to move them in an arc towards this point. I don't want to tween on a bezier because a few ticks later they need to change course slightly (but still heading towards the target).

This is a 3D version of the Swarm class in the new Hype framework. My first experiment is located here : http://rezzynet.com/swarm/Main.html

Imagine firing a missile from one point to another but the missile is drunk!

:-)

On Thu, Nov 5, 2009 at 3:11 PM, Andy Zupko <azupko@...> wrote:

Just use camera.orbit(pitch, yaw) where those are absolute values of where the camera should be around an object.

0, 0 is the top of the object (straight up), so to rotate around the objects side:

camera.orbit(90, yaw++); //onEnterFrame

position the camera the distance you want from the object prior to calling this.

Quats and such aren't the best/fastest solution here :P

-andy

On Nov 5, 2009, at 8:37 AM, John Grden wrote:

yeah if math is your need, Andy's your man ;)

On Thu, Nov 5, 2009 at 9:30 AM, Lee Probert <leeprobert@...> wrote:

Yea, I did ... well I left a comment on that post anyway. I'll keep on trucking then and see what I can cobble together.

Thanks! (LOL ... I read your blog)

On Thu, Nov 5, 2009 at 2:25 PM, John Grden <neoriley@...> wrote:

lol funny that andy's blog is the one you pointed to, I was just about to say "Ask Andy"

On Thu, Nov 5, 2009 at 9:21 AM, Lee Probert <leeprobert@...> wrote:

BTW ... this post is the closest thing I've found to what I need to do (I think) ... http://blog.zupko.info/?p=221

Although I think this may be over-complicating the matter too much.

:-)

On Thu, Nov 5, 2009 at 2:13 PM, Lee Probert <leeprobert@...> wrote:

Hi John. Thanks for the response. I'm trying to create a 3D version of the 'Swarm' class from Joshua and Branden's new Hype framework. At the moment the way this works (in 2D) is that each object has a target point that it tries to get to but it attempts to get there by following a circular path which has a bit of randomness to it to create a motion 'behaviour' that you can tweak. This is the code for doing that in 2D :

var clip:DisplayObject = target as DisplayObject;

var angle:Number = Math.atan2(_point.y - clip.y, _point.x - clip.x) * HypeMath.R2D;

var deltaAngle:Number = HypeMath.getDegreeDistance(clip.rotation, angle);

clip.rotation += deltaAngle * _turnEase + (Math.random() * _twitch * 2) - _twitch;

clip.x += Math.cos(clip.rotation * HypeMath.D2R) * _speed;

clip.y += Math.sin(clip.rotation * HypeMath.D2R) * _speed;

... what I'd like to do is mimic this by introducing the Z. I guess I need to work out the angle to the target point and then set the object off on an orbit from its current location to the new target.

My math is pretty poor. Any help or pointers would be appreciated.

My experiments so far with this are here : http://rezzynet.com

On Thu, Nov 5, 2009 at 2:02 PM, John Grden <neoriley@...> wrote:

if youdon't mind parenting the object that needs to "orbit", you can simply do that.

Or, you can easily do it with out that silly math crap in your render loop:

my3Dobj.x = my3Dobj.y = my3Dobj.z = 0; // or set it to the point in 3D space you want
my3Dobj.yaw(1); // rotate object
my3Dobj.moveBackward(1000);// or whatever distance the orbit is

then render

yay! orbit.

On Thu, Nov 5, 2009 at 5:50 AM, Lee Probert <leeprobert@...> wrote:

Can someone give me an example of the math I need to get an object to move in an orbit towards another point in 3D space. I think it has something to do with Quaternions. I want the object to point towards the target as well.

Thanks, Lee.

--
http://lyraspace.com
http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

_______________________________________________
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--
http://lyraspace.com
http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

--
http://lyraspace.com
http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

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--
http://lyraspace.com
http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

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--
http://lyraspace.com
http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

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Re: How to orbit to a point

2009-11-05T07:41:26Z

Hey Doug. Thanks for these links. I'll be in touch.

:-)

On Thu, Nov 5, 2009 at 3:31 PM, Strange Loop Studios <info@...> wrote:

Hey Lee,

I've just checked out your experiments site and noticed you're doing some audio visualizations with PV. Cool! Me to, when i get time...
I've actually started to create a bit of a framework for audio visuals including PV and might be able to help you make your animations a lot more responsive across all frequencies bands.

Here's some of my older experiments pre framework - for inspiration!

http://deceptiveresolution.wordpress.com/2009/09/01/visualizing-an-rtmp-flv/
http://deceptiveresolution.wordpress.com/2008/10/15/sexed-up-as3-visualization/
http://deceptiveresolution.wordpress.com/2008/10/07/the-seed-of-a-big-idea/
http://www.strangeloopstudios.com/experiments/3dmp3/

If you want to chat about this or perhaps do some work together drop me a mail.

Nice work
Doug

----- Original Message ----- From: "John McCormack" <john@...>
To: <papervision3d@...>
Sent: Thursday, November 05, 2009 2:29 PM
Subject: Re: [Papervision3D] How to orbit to a point

Lee,

The graphics are stunning.

John

Lee Probert wrote:

Can someone give me an example of the math I need to get an object to move in an orbit towards another point in 3D space. I think it has something to do with Quaternions. I want the object to point towards the target as well.

Thanks, Lee.
--
http://lyraspace.com
http://blog.lyraspace.com
http://rezzynet.com

info@... <mailto:info@...>
skype: lee.probert
google/MSN : leeprobert@... <mailto:leeprobert@...>
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN
------------------------------------------------------------------------

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Re: How to orbit to a point

2009-11-05T07:31:45Z

Hey Lee,

I've just checked out your experiments site and noticed you're doing some
audio visualizations with PV. Cool! Me to, when i get time...
I've actually started to create a bit of a framework for audio visuals
including PV and might be able to help you make your animations a lot more
responsive across all frequencies bands.

Here's some of my older experiments pre framework - for inspiration!

http://deceptiveresolution.wordpress.com/2009/09/01/visualizing-an-rtmp-flv/
http://deceptiveresolution.wordpress.com/2008/10/15/sexed-up-as3-visualization/
http://deceptiveresolution.wordpress.com/2008/10/07/the-seed-of-a-big-idea/
http://www.strangeloopstudios.com/experiments/3dmp3/

If you want to chat about this or perhaps do some work together drop me a
mail.

Nice work
Doug

----- Original Message -----
From: "John McCormack" <john@...>
To: <papervision3d@...>
Sent: Thursday, November 05, 2009 2:29 PM
Subject: Re: [Papervision3D] How to orbit to a point

> Lee,
>
> The graphics are stunning.
>
> John
>
>
> Lee Probert wrote:
>> Can someone give me an example of the math I need to get an object to
>> move in an orbit towards another point in 3D space. I think it has
>> something to do with Quaternions. I want the object to point towards the
>> target as well.
>>
>> Thanks, Lee.
>> --
>> http://lyraspace.com
>> http://blog.lyraspace.com
>> http://rezzynet.com
>>
>> info@... <mailto:info@...>
>> skype: lee.probert
>> google/MSN : leeprobert@... <mailto:leeprobert@...>
>> twitter : @lyraspace
>> tel: 01892 837 654
>> mob: 07540 723783 <-- NEW
>> 24 Allington Road,
>> Paddock Wood,
>> Tonbridge,
>> Kent.
>> TN12 6AN
>> ------------------------------------------------------------------------
>>
>> _______________________________________________
>> Papervision3D mailing list
>> Papervision3D@...
>> http://osflash.org/mailman/listinfo/papervision3d_osflash.org
>>
>
>
>
> _______________________________________________
> Papervision3D mailing list
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>
>

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diff Viewport3D and BitmapViewport3D

2009-11-05T07:31:01Z

hi all,

i'm about to start a little pv3d project that's needs anaglyphs, so i
want to use
the BitmapViewport3D.

Before i start i was wondering if there are any mentionable diffs between these
two... interactivity seems to work on both, but is there anything else
that maybe
doesn't work with the BitmapViewport?

thanks: lars

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Re: How to orbit to a point

2009-11-05T07:21:46Z

Hi Andy. This is slightly more complicated than it at first appears although I'm sure you would have a very elegant solution. The simplest way to describe the problem is like so ...

I have objects being spawned that then need to point to a target in 3D space and start to travel to this point but not directly. Their behaviour needs to appear erratic so I am attempting to move them in an arc towards this point. I don't want to tween on a bezier because a few ticks later they need to change course slightly (but still heading towards the target).

This is a 3D version of the Swarm class in the new Hype framework. My first experiment is located here : http://rezzynet.com/swarm/Main.html

Imagine firing a missile from one point to another but the missile is drunk!

:-)

On Thu, Nov 5, 2009 at 3:11 PM, Andy Zupko <azupko@...> wrote:

Just use camera.orbit(pitch, yaw) where those are absolute values of where the camera should be around an object.

0, 0 is the top of the object (straight up), so to rotate around the objects side:

camera.orbit(90, yaw++); //onEnterFrame

position the camera the distance you want from the object prior to calling this.

Quats and such aren't the best/fastest solution here :P

-andy

On Nov 5, 2009, at 8:37 AM, John Grden wrote:

yeah if math is your need, Andy's your man ;)

On Thu, Nov 5, 2009 at 9:30 AM, Lee Probert <leeprobert@...> wrote:

Yea, I did ... well I left a comment on that post anyway. I'll keep on trucking then and see what I can cobble together.

Thanks! (LOL ... I read your blog)

On Thu, Nov 5, 2009 at 2:25 PM, John Grden <neoriley@...> wrote:

lol funny that andy's blog is the one you pointed to, I was just about to say "Ask Andy"

On Thu, Nov 5, 2009 at 9:21 AM, Lee Probert <leeprobert@...> wrote:

BTW ... this post is the closest thing I've found to what I need to do (I think) ... http://blog.zupko.info/?p=221

Although I think this may be over-complicating the matter too much.

:-)

On Thu, Nov 5, 2009 at 2:13 PM, Lee Probert <leeprobert@...> wrote:

Hi John. Thanks for the response. I'm trying to create a 3D version of the 'Swarm' class from Joshua and Branden's new Hype framework. At the moment the way this works (in 2D) is that each object has a target point that it tries to get to but it attempts to get there by following a circular path which has a bit of randomness to it to create a motion 'behaviour' that you can tweak. This is the code for doing that in 2D :

var clip:DisplayObject = target as DisplayObject;

var angle:Number = Math.atan2(_point.y - clip.y, _point.x - clip.x) * HypeMath.R2D;

var deltaAngle:Number = HypeMath.getDegreeDistance(clip.rotation, angle);

clip.rotation += deltaAngle * _turnEase + (Math.random() * _twitch * 2) - _twitch;

clip.x += Math.cos(clip.rotation * HypeMath.D2R) * _speed;

clip.y += Math.sin(clip.rotation * HypeMath.D2R) * _speed;

... what I'd like to do is mimic this by introducing the Z. I guess I need to work out the angle to the target point and then set the object off on an orbit from its current location to the new target.

My math is pretty poor. Any help or pointers would be appreciated.

My experiments so far with this are here : http://rezzynet.com

On Thu, Nov 5, 2009 at 2:02 PM, John Grden <neoriley@...> wrote:

if youdon't mind parenting the object that needs to "orbit", you can simply do that.

Or, you can easily do it with out that silly math crap in your render loop:

my3Dobj.x = my3Dobj.y = my3Dobj.z = 0; // or set it to the point in 3D space you want
my3Dobj.yaw(1); // rotate object
my3Dobj.moveBackward(1000);// or whatever distance the orbit is

then render

yay! orbit.

On Thu, Nov 5, 2009 at 5:50 AM, Lee Probert <leeprobert@...> wrote:

Can someone give me an example of the math I need to get an object to move in an orbit towards another point in 3D space. I think it has something to do with Quaternions. I want the object to point towards the target as well.

Thanks, Lee.

--
http://lyraspace.com
http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

_______________________________________________
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http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

--
http://lyraspace.com
http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
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tel: 01892 837 654
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info@...
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google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
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Re: How to orbit to a point

2009-11-05T07:11:42Z

Just use camera.orbit(pitch, yaw) where those are absolute values of where the camera should be around an object.

0, 0 is the top of the object (straight up), so to rotate around the objects side:

camera.orbit(90, yaw++); //onEnterFrame

position the camera the distance you want from the object prior to calling this.

Quats and such aren't the best/fastest solution here :P

-andy

On Nov 5, 2009, at 8:37 AM, John Grden wrote:

yeah if math is your need, Andy's your man ;)

On Thu, Nov 5, 2009 at 9:30 AM, Lee Probert <leeprobert@...> wrote:

Yea, I did ... well I left a comment on that post anyway. I'll keep on trucking then and see what I can cobble together.

Thanks! (LOL ... I read your blog)

On Thu, Nov 5, 2009 at 2:25 PM, John Grden <neoriley@...> wrote:
lol funny that andy's blog is the one you pointed to, I was just about to say "Ask Andy"

On Thu, Nov 5, 2009 at 9:21 AM, Lee Probert <leeprobert@...> wrote:

BTW ... this post is the closest thing I've found to what I need to do (I think) ... http://blog.zupko.info/?p=221

Although I think this may be over-complicating the matter too much.

:-)

On Thu, Nov 5, 2009 at 2:13 PM, Lee Probert <leeprobert@...> wrote:

Hi John. Thanks for the response. I'm trying to create a 3D version of the 'Swarm' class from Joshua and Branden's new Hype framework. At the moment the way this works (in 2D) is that each object has a target point that it tries to get to but it attempts to get there by following a circular path which has a bit of randomness to it to create a motion 'behaviour' that you can tweak. This is the code for doing that in 2D :

var clip:DisplayObject = target as DisplayObject;
var angle:Number = Math.atan2(_point.y - clip.y, _point.x - clip.x) * HypeMath.R2D;
var deltaAngle:Number = HypeMath.getDegreeDistance(clip.rotation, angle);

clip.rotation += deltaAngle * _turnEase + (Math.random() * _twitch * 2) - _twitch;
clip.x += Math.cos(clip.rotation * HypeMath.D2R) * _speed;
clip.y += Math.sin(clip.rotation * HypeMath.D2R) * _speed;

... what I'd like to do is mimic this by introducing the Z. I guess I need to work out the angle to the target point and then set the object off on an orbit from its current location to the new target.

My math is pretty poor. Any help or pointers would be appreciated.

My experiments so far with this are here : http://rezzynet.com

On Thu, Nov 5, 2009 at 2:02 PM, John Grden <neoriley@...> wrote:

if youdon't mind parenting the object that needs to "orbit", you can simply do that.

Or, you can easily do it with out that silly math crap in your render loop:

my3Dobj.x = my3Dobj.y = my3Dobj.z = 0; // or set it to the point in 3D space you want
my3Dobj.yaw(1); // rotate object
my3Dobj.moveBackward(1000);// or whatever distance the orbit is

then render

yay! orbit.

On Thu, Nov 5, 2009 at 5:50 AM, Lee Probert <leeprobert@...> wrote:

Can someone give me an example of the math I need to get an object to move in an orbit towards another point in 3D space. I think it has something to do with Quaternions. I want the object to point towards the target as well.

Thanks, Lee.

--
http://lyraspace.com
http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

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--
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http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

--
http://lyraspace.com
http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

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http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

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Re: How to orbit to a point

2009-11-05T06:37:30Z

yeah if math is your need, Andy's your man ;)

On Thu, Nov 5, 2009 at 9:30 AM, Lee Probert <leeprobert@...> wrote:

Yea, I did ... well I left a comment on that post anyway. I'll keep on trucking then and see what I can cobble together.

Thanks! (LOL ... I read your blog)

On Thu, Nov 5, 2009 at 2:25 PM, John Grden <neoriley@...> wrote:
lol funny that andy's blog is the one you pointed to, I was just about to say "Ask Andy"

On Thu, Nov 5, 2009 at 9:21 AM, Lee Probert <leeprobert@...> wrote:

BTW ... this post is the closest thing I've found to what I need to do (I think) ... http://blog.zupko.info/?p=221

Although I think this may be over-complicating the matter too much.

:-)

On Thu, Nov 5, 2009 at 2:13 PM, Lee Probert <leeprobert@...> wrote:

Hi John. Thanks for the response. I'm trying to create a 3D version of the 'Swarm' class from Joshua and Branden's new Hype framework. At the moment the way this works (in 2D) is that each object has a target point that it tries to get to but it attempts to get there by following a circular path which has a bit of randomness to it to create a motion 'behaviour' that you can tweak. This is the code for doing that in 2D :

var clip:DisplayObject = target as DisplayObject;

var angle:Number = Math.atan2(_point.y - clip.y, _point.x - clip.x) * HypeMath.R2D;

var deltaAngle:Number = HypeMath.getDegreeDistance(clip.rotation, angle);

clip.rotation += deltaAngle * _turnEase + (Math.random() * _twitch * 2) - _twitch;

clip.x += Math.cos(clip.rotation * HypeMath.D2R) * _speed;

clip.y += Math.sin(clip.rotation * HypeMath.D2R) * _speed;

... what I'd like to do is mimic this by introducing the Z. I guess I need to work out the angle to the target point and then set the object off on an orbit from its current location to the new target.

My math is pretty poor. Any help or pointers would be appreciated.

My experiments so far with this are here : http://rezzynet.com

On Thu, Nov 5, 2009 at 2:02 PM, John Grden <neoriley@...> wrote:

if youdon't mind parenting the object that needs to "orbit", you can simply do that.

Or, you can easily do it with out that silly math crap in your render loop:

my3Dobj.x = my3Dobj.y = my3Dobj.z = 0; // or set it to the point in 3D space you want
my3Dobj.yaw(1); // rotate object
my3Dobj.moveBackward(1000);// or whatever distance the orbit is

then render

yay! orbit.

On Thu, Nov 5, 2009 at 5:50 AM, Lee Probert <leeprobert@...> wrote:

Can someone give me an example of the math I need to get an object to move in an orbit towards another point in 3D space. I think it has something to do with Quaternions. I want the object to point towards the target as well.

Thanks, Lee.

--
http://lyraspace.com
http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

_______________________________________________
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--
http://lyraspace.com
http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

--
http://lyraspace.com
http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

_______________________________________________
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http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

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Re: Papervision3D Digest, Vol 38, Issue 5

2009-11-05T06:33:42Z

Hi again,

I found this link http://labs.zavoo.com/?p=105 (many thanks to the
author) and solved the issue on how to load fonts
without using the "Make a new typography file.swf" tool...

I still have to solve the problem with the non English characters.
something like a mapping of characters I guess will do the trick

thanks
Thodoris

Theodoros Semertzidis wrote:

> Hi thanks for the reply,
>
> ok now I got it!!
>
> thanks for the hint, so I guess I'll have to use bitmap text for now
> In the case that I find any other solution I'll post back..
>
> Regards,
> Thodoris
>
>
>
> אלי אטלס wrote:
>
>> Thodoris,
>> I don't think that it is possible.
>> IDE is actually translating fonts to vector coordinates so you have to
>> use it.
>>
>>
>> I once did a Hebrew example and there is another problem with non
>> English fonts,
>> http://clients.mantis.co.il/eli/hanuka/happyhanuka.html
>>
>> you are supposed to go to org.papervision3d.typography.fonts and put a
>> new font there.
>>
>> But if you generate non latin font you"ll get something like :
>>
>> __motifs["מ"] = [['M',[50.4,39.2]],['L',[49.2,49.9]]];
>>
>> with non english characters.
>>
>> so it will not work unless you"ll change all of them to english.
>>
>>
>>
>> Cheers
>> ------------------------------------------------------------------------
>>
>> _______________________________________________
>> Papervision3D mailing list
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>> http://osflash.org/mailman/listinfo/papervision3d_osflash.org
>>
>>
>
>

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Re: How to orbit to a point

2009-11-05T06:30:08Z

Yea, I did ... well I left a comment on that post anyway. I'll keep on trucking then and see what I can cobble together.

Thanks! (LOL ... I read your blog)

On Thu, Nov 5, 2009 at 2:25 PM, John Grden <neoriley@...> wrote:

lol funny that andy's blog is the one you pointed to, I was just about to say "Ask Andy"

On Thu, Nov 5, 2009 at 9:21 AM, Lee Probert <leeprobert@...> wrote:

BTW ... this post is the closest thing I've found to what I need to do (I think) ... http://blog.zupko.info/?p=221

Although I think this may be over-complicating the matter too much.

:-)

On Thu, Nov 5, 2009 at 2:13 PM, Lee Probert <leeprobert@...> wrote:

Hi John. Thanks for the response. I'm trying to create a 3D version of the 'Swarm' class from Joshua and Branden's new Hype framework. At the moment the way this works (in 2D) is that each object has a target point that it tries to get to but it attempts to get there by following a circular path which has a bit of randomness to it to create a motion 'behaviour' that you can tweak. This is the code for doing that in 2D :

var clip:DisplayObject = target as DisplayObject;

var angle:Number = Math.atan2(_point.y - clip.y, _point.x - clip.x) * HypeMath.R2D;

var deltaAngle:Number = HypeMath.getDegreeDistance(clip.rotation, angle);

clip.rotation += deltaAngle * _turnEase + (Math.random() * _twitch * 2) - _twitch;

clip.x += Math.cos(clip.rotation * HypeMath.D2R) * _speed;

clip.y += Math.sin(clip.rotation * HypeMath.D2R) * _speed;

... what I'd like to do is mimic this by introducing the Z. I guess I need to work out the angle to the target point and then set the object off on an orbit from its current location to the new target.

My math is pretty poor. Any help or pointers would be appreciated.

My experiments so far with this are here : http://rezzynet.com

On Thu, Nov 5, 2009 at 2:02 PM, John Grden <neoriley@...> wrote:

if youdon't mind parenting the object that needs to "orbit", you can simply do that.

Or, you can easily do it with out that silly math crap in your render loop:

my3Dobj.x = my3Dobj.y = my3Dobj.z = 0; // or set it to the point in 3D space you want
my3Dobj.yaw(1); // rotate object
my3Dobj.moveBackward(1000);// or whatever distance the orbit is

then render

yay! orbit.

On Thu, Nov 5, 2009 at 5:50 AM, Lee Probert <leeprobert@...> wrote:

Can someone give me an example of the math I need to get an object to move in an orbit towards another point in 3D space. I think it has something to do with Quaternions. I want the object to point towards the target as well.

Thanks, Lee.

--
http://lyraspace.com
http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

_______________________________________________
Papervision3D mailing list
Papervision3D@...
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--
http://lyraspace.com
http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

--
http://lyraspace.com
http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

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Re: How to orbit to a point

2009-11-05T06:29:24Z

Lee,

The graphics are stunning.

John

Lee Probert wrote:

> Can someone give me an example of the math I need to get an object to
> move in an orbit towards another point in 3D space. I think it has
> something to do with Quaternions. I want the object to point towards
> the target as well.
>
> Thanks, Lee.
>
> --
> http://lyraspace.com
> http://blog.lyraspace.com
> http://rezzynet.com
>
> info@... <mailto:info@...>
> skype: lee.probert
> google/MSN : leeprobert@... <mailto:leeprobert@...>
> twitter : @lyraspace
> tel: 01892 837 654
> mob: 07540 723783 <-- NEW
> 24 Allington Road,
> Paddock Wood,
> Tonbridge,
> Kent.
> TN12 6AN
> ------------------------------------------------------------------------
>
> _______________________________________________
> Papervision3D mailing list
> Papervision3D@...
> http://osflash.org/mailman/listinfo/papervision3d_osflash.org
>

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Re: How to orbit to a point

2009-11-05T06:25:17Z

lol funny that andy's blog is the one you pointed to, I was just about to say "Ask Andy"

On Thu, Nov 5, 2009 at 9:21 AM, Lee Probert <leeprobert@...> wrote:

BTW ... this post is the closest thing I've found to what I need to do (I think) ... http://blog.zupko.info/?p=221

Although I think this may be over-complicating the matter too much.

:-)

On Thu, Nov 5, 2009 at 2:13 PM, Lee Probert <leeprobert@...> wrote:

Hi John. Thanks for the response. I'm trying to create a 3D version of the 'Swarm' class from Joshua and Branden's new Hype framework. At the moment the way this works (in 2D) is that each object has a target point that it tries to get to but it attempts to get there by following a circular path which has a bit of randomness to it to create a motion 'behaviour' that you can tweak. This is the code for doing that in 2D :

var clip:DisplayObject = target as DisplayObject;

var angle:Number = Math.atan2(_point.y - clip.y, _point.x - clip.x) * HypeMath.R2D;

var deltaAngle:Number = HypeMath.getDegreeDistance(clip.rotation, angle);

clip.rotation += deltaAngle * _turnEase + (Math.random() * _twitch * 2) - _twitch;

clip.x += Math.cos(clip.rotation * HypeMath.D2R) * _speed;

clip.y += Math.sin(clip.rotation * HypeMath.D2R) * _speed;

... what I'd like to do is mimic this by introducing the Z. I guess I need to work out the angle to the target point and then set the object off on an orbit from its current location to the new target.

My math is pretty poor. Any help or pointers would be appreciated.

My experiments so far with this are here : http://rezzynet.com

On Thu, Nov 5, 2009 at 2:02 PM, John Grden <neoriley@...> wrote:

if youdon't mind parenting the object that needs to "orbit", you can simply do that.

Or, you can easily do it with out that silly math crap in your render loop:

my3Dobj.x = my3Dobj.y = my3Dobj.z = 0; // or set it to the point in 3D space you want
my3Dobj.yaw(1); // rotate object
my3Dobj.moveBackward(1000);// or whatever distance the orbit is

then render

yay! orbit.

On Thu, Nov 5, 2009 at 5:50 AM, Lee Probert <leeprobert@...> wrote:

Can someone give me an example of the math I need to get an object to move in an orbit towards another point in 3D space. I think it has something to do with Quaternions. I want the object to point towards the target as well.

Thanks, Lee.

--
http://lyraspace.com
http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

_______________________________________________
Papervision3D mailing list
Papervision3D@...
http://osflash.org/mailman/listinfo/papervision3d_osflash.org

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Papervision3D@...
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--
http://lyraspace.com
http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

--
http://lyraspace.com
http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

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Re: How to orbit to a point

2009-11-05T06:21:50Z

BTW ... this post is the closest thing I've found to what I need to do (I think) ... http://blog.zupko.info/?p=221

Although I think this may be over-complicating the matter too much.

:-)

On Thu, Nov 5, 2009 at 2:13 PM, Lee Probert <leeprobert@...> wrote:

Hi John. Thanks for the response. I'm trying to create a 3D version of the 'Swarm' class from Joshua and Branden's new Hype framework. At the moment the way this works (in 2D) is that each object has a target point that it tries to get to but it attempts to get there by following a circular path which has a bit of randomness to it to create a motion 'behaviour' that you can tweak. This is the code for doing that in 2D :

var clip:DisplayObject = target as DisplayObject;

var angle:Number = Math.atan2(_point.y - clip.y, _point.x - clip.x) * HypeMath.R2D;

var deltaAngle:Number = HypeMath.getDegreeDistance(clip.rotation, angle);

clip.rotation += deltaAngle * _turnEase + (Math.random() * _twitch * 2) - _twitch;

clip.x += Math.cos(clip.rotation * HypeMath.D2R) * _speed;

clip.y += Math.sin(clip.rotation * HypeMath.D2R) * _speed;

... what I'd like to do is mimic this by introducing the Z. I guess I need to work out the angle to the target point and then set the object off on an orbit from its current location to the new target.

My math is pretty poor. Any help or pointers would be appreciated.

My experiments so far with this are here : http://rezzynet.com

On Thu, Nov 5, 2009 at 2:02 PM, John Grden <neoriley@...> wrote:

if youdon't mind parenting the object that needs to "orbit", you can simply do that.

Or, you can easily do it with out that silly math crap in your render loop:

my3Dobj.x = my3Dobj.y = my3Dobj.z = 0; // or set it to the point in 3D space you want
my3Dobj.yaw(1); // rotate object
my3Dobj.moveBackward(1000);// or whatever distance the orbit is

then render

yay! orbit.

On Thu, Nov 5, 2009 at 5:50 AM, Lee Probert <leeprobert@...> wrote:

Can someone give me an example of the math I need to get an object to move in an orbit towards another point in 3D space. I think it has something to do with Quaternions. I want the object to point towards the target as well.

Thanks, Lee.

--
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http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

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--
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http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

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Re: How to orbit to a point

2009-11-05T06:13:05Z

Hi John. Thanks for the response. I'm trying to create a 3D version of the 'Swarm' class from Joshua and Branden's new Hype framework. At the moment the way this works (in 2D) is that each object has a target point that it tries to get to but it attempts to get there by following a circular path which has a bit of randomness to it to create a motion 'behaviour' that you can tweak. This is the code for doing that in 2D :

var clip:DisplayObject = target as DisplayObject;

var angle:Number = Math.atan2(_point.y - clip.y, _point.x - clip.x) * HypeMath.R2D;

var deltaAngle:Number = HypeMath.getDegreeDistance(clip.rotation, angle);

clip.rotation += deltaAngle * _turnEase + (Math.random() * _twitch * 2) - _twitch;

clip.x += Math.cos(clip.rotation * HypeMath.D2R) * _speed;

clip.y += Math.sin(clip.rotation * HypeMath.D2R) * _speed;

... what I'd like to do is mimic this by introducing the Z. I guess I need to work out the angle to the target point and then set the object off on an orbit from its current location to the new target.

My math is pretty poor. Any help or pointers would be appreciated.

My experiments so far with this are here : http://rezzynet.com

On Thu, Nov 5, 2009 at 2:02 PM, John Grden <neoriley@...> wrote:

if youdon't mind parenting the object that needs to "orbit", you can simply do that.

Or, you can easily do it with out that silly math crap in your render loop:

my3Dobj.x = my3Dobj.y = my3Dobj.z = 0; // or set it to the point in 3D space you want
my3Dobj.yaw(1); // rotate object
my3Dobj.moveBackward(1000);// or whatever distance the orbit is

then render

yay! orbit.

On Thu, Nov 5, 2009 at 5:50 AM, Lee Probert <leeprobert@...> wrote:

Can someone give me an example of the math I need to get an object to move in an orbit towards another point in 3D space. I think it has something to do with Quaternions. I want the object to point towards the target as well.

Thanks, Lee.

--
http://lyraspace.com
http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

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Re: How to orbit to a point

2009-11-05T06:02:38Z

if youdon't mind parenting the object that needs to "orbit", you can simply do that.

Or, you can easily do it with out that silly math crap in your render loop:

my3Dobj.x = my3Dobj.y = my3Dobj.z = 0; // or set it to the point in 3D space you want
my3Dobj.yaw(1); // rotate object
my3Dobj.moveBackward(1000);// or whatever distance the orbit is

then render

yay! orbit.

On Thu, Nov 5, 2009 at 5:50 AM, Lee Probert <leeprobert@...> wrote:

Can someone give me an example of the math I need to get an object to move in an orbit towards another point in 3D space. I think it has something to do with Quaternions. I want the object to point towards the target as well.

Thanks, Lee.

--
http://lyraspace.com
http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

_______________________________________________
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--
[ JPG ]

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How to orbit to a point

2009-11-05T02:50:22Z

Can someone give me an example of the math I need to get an object to move in an orbit towards another point in 3D space. I think it has something to do with Quaternions. I want the object to point towards the target as well.

Thanks, Lee.

--
http://lyraspace.com
http://blog.lyraspace.com
http://rezzynet.com

info@...
skype: lee.probert
google/MSN : leeprobert@...
twitter : @lyraspace
tel: 01892 837 654
mob: 07540 723783 <-- NEW
24 Allington Road,
Paddock Wood,
Tonbridge,
Kent.
TN12 6AN

_______________________________________________
Papervision3D mailing list
Papervision3D@...
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Re: Papervision3D Digest, Vol 38, Issue 5

2009-11-05T00:34:17Z

Hi thanks for the reply,

ok now I got it!!

thanks for the hint, so I guess I'll have to use bitmap text for now
In the case that I find any other solution I'll post back..

Regards,
Thodoris

אלי אטלס wrote:

> Thodoris,
> I don't think that it is possible.
> IDE is actually translating fonts to vector coordinates so you have to
> use it.
>
>
> I once did a Hebrew example and there is another problem with non
> English fonts,
> http://clients.mantis.co.il/eli/hanuka/happyhanuka.html
>
> you are supposed to go to org.papervision3d.typography.fonts and put a
> new font there.
>
> But if you generate non latin font you"ll get something like :
>
> __motifs["מ"] = [['M',[50.4,39.2]],['L',[49.2,49.9]]];
>
> with non english characters.
>
> so it will not work unless you"ll change all of them to english.
>
>
>
> Cheers
> ------------------------------------------------------------------------
>
> _______________________________________________
> Papervision3D mailing list
> Papervision3D@...
> http://osflash.org/mailman/listinfo/papervision3d_osflash.org
>

--
-------------------------------------------------------
Theodoros Semertzidis
Electrical and Computer Engineer, Msc.
Informatics and Telematics Institute
Centre for Research and Technology Hellas
1st km Thermi-Panorama Road
P.O. Box 60361, GR-570 01 Thermi, Thessaloniki, Greece
Tel: +30 2310 464 160 (ext 218), Fax: +30 2310 464 164
E-mail: theosem@..., Web site: http://www.iti.gr

------------------------------------------------------

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Re: Papervision3D Digest, Vol 38, Issue 5

2009-11-05T00:21:11Z

Thodoris,
I don't think that it is possible.
IDE is actually translating fonts to vector coordinates so you have to use it.

I once did a Hebrew example and there is another problem with non English fonts,
http://clients.mantis.co.il/eli/hanuka/happyhanuka.html

you are supposed to go to org.papervision3d.typography.fonts and put a new font there.

But if you generate non latin font you"ll get something like :

__motifs["מ"] = [['M',[50.4,39.2]],['L',[49.2,49.9]]];

with non english characters.

so it will not work unless you"ll change all of them to english.

Cheers

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font3D without flash IDE

2009-11-04T02:58:38Z

Hi all,

I am trying to create a new font3D for a project (a Greek Font).
Is there a way to use Mathieu Badimon's "Make a new typography
file.swf" tool outside Flash IDE?
I was reading this great tutorial
http://www.packtpub.com/article/3d-vector-drawing-and-text-papervision3d-part1
but stuck when reached flash IDE :-)

thanks,
Thodoris

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BitmapEffectLayer and resize

2009-11-03T02:26:40Z

I have a little prb with a BitmapEffectLayer.
The problem is that i would like to change the height and width of the BitmapEffectLayer on the page resize.
Basically I need to have a BitmapEffectLayer with the same height and width than the stage size.

Thx you in advance.

Re: Aw esome DJ website (A bit over selling title but i need your advise :)) (Theodoros Semertzidis)

2009-11-02T09:57:53Z

Love it, nice colors, animations and SOUND.

Keep me updated.

Greetings from Cologne

Peter

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Re: Aw esome DJ website (A bit over selling title but i need your advise :))

2009-11-02T09:28:54Z

Runs fine on my Window 7 v 7100, i7 2.9 Ghz, 4gb ram, 64bit, video ATI 4870 X2

On Mon, Nov 2, 2009 at 6:24 AM, Monsieur A <mathieu@...> wrote:

Hello,

Yes I know another website beta test ... I promise this one is funny and the
musics are great :)

http://www.adenek.com/temp/norman/

What I would like to know is :
- Is it running ok on your computer (please tell me what computer you use if
it's laggy ...)
- Do you understand well how to navigate (Looks dump question but you will
see :))
- Do you like it (Maybe the main question in fact).

Thx a lot in advance

--
View this message in context: http://old.nabble.com/Awesome-DJ-website-%28A-bit-over-selling-title-but-i-need-your-advise-%3A%29%29-tp26156901p26156901.html
Sent from the Papervision3D mailing list archive at Nabble.com.

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Re: Aw esome DJ website (A bit over selling title but i need your advise :))

2009-11-02T09:20:34Z

just FYI, when I resize the stage (only viewed on Chrome & ffx on Vista64),
the bg bitmap doesn't resize (try start small then expand). Everything else
seems to resize ok.

----- Original Message -----
From: "Monsieur A" <mathieu@...>
To: <papervision3D@...>
Sent: Monday, November 02, 2009 1:24 PM
Subject: [Papervision3D] Aw esome DJ website (A bit over selling title but i
need your advise :))

>
> Hello,
>
> Yes I know another website beta test ... I promise this one is funny and
> the
> musics are great :)
>
> http://www.adenek.com/temp/norman/
>
> What I would like to know is :
> - Is it running ok on your computer (please tell me what computer you use
> if
> it's laggy ...)
> - Do you understand well how to navigate (Looks dump question but you will
> see :))
> - Do you like it (Maybe the main question in fact).
>
> Thx a lot in advance
>
>
>
>
> --
> View this message in context:
> http://old.nabble.com/Awesome-DJ-website-%28A-bit-over-selling-title-but-i-need-your-advise-%3A%29%29-tp26156901p26156901.html
> Sent from the Papervision3D mailing list archive at Nabble.com.
>
>
> _______________________________________________
> Papervision3D mailing list
> Papervision3D@...
> http://osflash.org/mailman/listinfo/papervision3d_osflash.org

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