Question

This question may look pretty simple, but I cannot find how HLSL handles its own coordinates system.

I only wish to know where is (0,0) located (Upper left corner or lower left corner), and since I am a total beginner with these shaders concepts, I am unable to deduct it by myself

Thanks for your help!

Answer 1

I believe you want to understand DirectX’s coordinate system. HLSL is a shading language and doesn’t define a co-ordinate space to work in.

Here are a couple of links to get you started.

1. Coordinate system
2. Pixel and Texture coordinate systems