Hi,
Do I really need Perspective Correction if I'm not going to use any textures/lighting? I just want to render solid triangles and nothing else.
I've heard you still need it for triangles that are big enough or close enough to the camera, is that true?
I was hoping it's just for texturing/lighting so I don't have to implement it.
Sincerely,
Sym
Software 3D Renderer - Do I really need Perspective Correction?
Depth should be also interpolated using perspective correction. Without it there will be some z-buffer artifacts in places where two triangles intersect / overlap. More or less visible, depending on triangle position and size.
BTW persp corr interpolation just for zbuffer is simple - just linearly interpolate 1/z in screen space.
BTW persp corr interpolation just for zbuffer is simple - just linearly interpolate 1/z in screen space.
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