static const float lut1[3] = { 0.1, 0.2, 0.3 };
static const float2 lut2[] = { float2(0.1,0.2), float2(0.2,0.3) };
static const float4 lut4[1] = { float4(0.1,0.2,0.3,0.4) };
   
float4 main() : COLOR
{
	float4 c = 0.0;
	for (int i = 0; i < 3; ++i)
		c.x += lut1[i];
	for (int i = 0; i < 2; ++i)
		c.xy += lut2[i];
	c += lut4[0];
	return c;
}