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Work on GPU decoding.

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This commit is contained in:
David Williams
2014-05-29 19:29:15 +02:00
parent 8604d1209e
commit e40eb6d762
3 changed files with 24 additions and 17 deletions
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7
examples/DecodeOnGPU/decode.vert
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@ -1,6 +1,6 @@
#version 140
in vec4 position; // This will be the position of the vertex in model-space
in uvec4 position; // This will be the position of the vertex in model-space
// The usual matrices are provided
uniform mat4 cameraToClipMatrix;
@ -13,8 +13,11 @@ out vec4 worldPosition;
void main()
{
vec4 decodedPosition = position;
decodedPosition.xyz = decodedPosition.xyz * (1.0 / 256.0);
// Standard sequence of OpenGL transformations.
worldPosition = modelToWorldMatrix * position;
worldPosition = modelToWorldMatrix * decodedPosition;
vec4 cameraPosition = worldToCameraMatrix * worldPosition;
gl_Position = cameraToClipMatrix * cameraPosition;
}