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Shadows on Android


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#1 dragostis   Members   -  Reputation: 102

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Posted 12 August 2012 - 11:50 AM

I've designed a framework for Android games running on OpenGL ES 2.0 with per-pixel lighting, several lights, keyframe animation etc., an now I'm wondering how to implement shadows. I've seen how stencil shadows work with volumes and silhouettes, but I was thinking of a better implementation on mobile phones. Because the volumes have to be calculated on the CPU, this would severely affect the performance on some mobile devices. So I was thinking of a solution to making real-time shadows on the GPU. Sadly, I've no lead for this. Can anyone give me hint/helping hand with the shadows? Anything would be greatly appreciated and I will be more than happy to somehow repay the help I get.

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#2 SimonForsman   Crossbones+   -  Reputation: 6045

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Posted 12 August 2012 - 01:13 PM

shadowmaps
http://blog.shayanja...shadow-mapping/

Another option is to create the shadowvolumes once and then transform the volumes using the vertex shader. (This eliminates the cpu load)

Edited by SimonForsman, 12 August 2012 - 01:15 PM.

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