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Results tagged with z-buffer
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user 18373
0
votes
0
answers
69
views
Data type for coordinates
I am trying optimize routines for drawing primitive shapes for my custom 3D renderer.
What is the best data type for representing a coordinate in 3D space? I thought that integer would be the best cho …
- 167
0
votes
1
answer
315
views
Understanding gluUnProject
I was studying how the OpenGL's gluUnProject works. There is one thing I don't understand: is there any benefit of returning a ray instead of 3D point?
One can use this function to get a ray not a 3D …
- 167
3
votes
1
answer
654
views
Correct way to interpolate 1/z?
I have doubts on 1/z depth buffer interpolation. According to this website, the correct 1/z interpolation formula is
$\dfrac{1}{P.z} = \dfrac{1}{V0.z} * \lambda_0 + \dfrac{1}{V1.z} * \lambda_1 + \dfra …
- 167