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- typedef struct
- {
- float4 origin;
- float4 direction;
- }
- Ray;
- __kernel void primary( const int width,
- const int height,
- const float widthArg,
- const float heightArg,
- const float4 origin,
- const float4 right,
- const float4 up,
- const float4 planePos,
- __global Ray* rays,
- const int num)
- {
- const int idx = get_global_id(0);
- if(idx < num)
- {
- int2 coord = (int2)(idx % width, idx / width);
- float x = (float)(coord.x) - widthArg;
- float y = (float)(coord.y) - heightArg;
- rays[idx].origin = origin;
- rays[idx].direction = normalize(right * x + up * y + planePos);
- }
- }
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