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);
	}
}