Checking if float3 passed boundary

Question

I have the following code:

(voxelCoord.x < 0 ||  
voxelCoord.y < 0 || voxelCoord.z < 0 || voxelCoord.x > 1 
|| voxelCoord.y > 1 || voxelCoord.z > 1)

However, I think it should be possible to optimize this. I think using min and max will set me back, is there a solution like clamp which will let me check if the boundaries are passed?

For instance; would

clamp(voxelCoord, float3(0), float3(1)) != voxelCoord

work?

Answer 1

any(voxelCoord < 0 || voxelCoord > 1)

Is more concise and compiles down to 2 less D3D-IL instructions than what you've written. Whether it is any more optimal after the driver's compiler has had a go at optimising them will depend on other factors (whether the hardware is vector-based or scalar-based for one).