vertex_compute.glsl

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#version 430
 
#ifdef COMPUTE_SHADER
 
layout(std430, binding= 1) readonly buffer vertexData
{
    vec3 data[];
};
 
layout(std430, binding= 0) writeonly buffer transformedData
{
    vec4 transformed[];
};
 
uniform mat4 mvpMatrix;
 
layout(local_size_x= 256) in;
void main( )
{
    // recupere l'indice du thread
    const uint ID= gl_GlobalInvocationID.x;
    
    // chaque thread transforme le sommet d'indice ID...
    if(ID < data.length())
        transformed[ID]= mvpMatrix * vec4(data[ID], 1);
}
#endif