src/com/mbien/opencl/demos/joglinterop/JoglInterop.cl


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/*
 * Simple kernel to modify vertex positions in sine wave pattern
 */
__kernel void sineWave(__global float4 * pos, unsigned int width, unsigned int height, float time) {

    unsigned int x = get_global_id(0);
    unsigned int y = get_global_id(1);

    // calculate uv coordinates
    float u = x / (float) width;
    float v = y / (float) height;

    u = u*2.0f - 1.0f;
    v = v*2.0f - 1.0f;

    // calculate simple sine wave pattern
    float freq = 4.0f;
    float w = sin(u*freq + time) * cos(v*freq + time) * 0.5f;

    // write output vertex
    pos[y*width+x] = (float4)(u, w, v, 1.0f);
}