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Re: Best way to create a ground

by apinstein :: Rate this Message:

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You can drop your segments very low if you use precise. Precise=true  
dynamically adds triangles as needed.

I also have written a patch for Papervision's BitmapMaterial that uses  
Flash 10's drawTriangles() method which provides precise  
texturemapping at very high speed. You can see a recent thread on this  
list with many more details on that topic.

Alan

On Jul 1, 2009, at 5:03 AM, Damien Pegoraro wrote:

> Thanks for the reply, i had not thought about playing with precise  
> value !
>
> With precise on,   the render is absolutely perfect but the number  
> of triangles is always very high by default.
>
> I didn't knew the pixelPrecision property. Maybe setting this value  
> properly with a precise texture is the best solution i can find. The  
> first result are quite good !
>
> One strange thing ( maybe an issue )  :
>
> -------
> trace ( material.pixelPrecision ) outputs 8 => triangles on scene :  
> 1200 ;
> -----------
> material.pixelPrecision = 8 ;
> trace ( material.pixelPrecision ) outputs 8 => triangles on scene :  
> 700;
> --------
>
>
>
>
>
> Peter Velichkov a écrit :
>> Try material.precise = true;
>>
>> Cheers,
>> Peter
>>
>>
>> ----
>> web: http://www.creonfx.com
>> blog: http://blog.creonfx.com
>> skype: peterv-at-work
>> twitter: http://twitter.com/pvelichkov
>>
>> babeuf wrote:
>>> Hello everybody, i'm Damien , flash coder from France.
>>> My question is the following : what is the best way and what are  
>>> the tips to
>>> create a ground with a large textured plane for a a pv3d game.
>>> I m searching for long now but i can't find a really good  
>>> compromise.
>>> If i use a detailed plane (30x30 segments ) the rendering is  
>>> correct  but
>>> the number of triangles is pretty high and FPS drops down.  If i  
>>> use a less detailed plane ( 20x20 segments ), the number of  
>>> triangles
>>> really drops down and FPS is good, but the straights lines on my  
>>> texture
>>> don't look straight anymore.
>>> What are the tips to optimize a large plane preserving most of the  
>>> quality ?
>>> Thx !
>>
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>>
>>
>
>
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