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5
votes
5answers
11k views

Any reliable polygon normal calculation code?

Do you have any reliable 3d polygonal face normal calculation code? Any language will do, I'll port it to make it work. Even if you find some code in a 3d game engine and post it here I'll be more ...
14
votes
1answer
2k views

How to gain accurate results with Painter's algorithm?

A while ago I asked how to determine when a face is overlapping another. The advice was to use a Z-buffer. However, I cannot use a Z-buffer in my current project and hence I would like to use the ...
0
votes
2answers
150 views

How can I make a trail renderer flat with the normal of the nearest face?

I'm making a basic skid system for a car model using a trail renderer. I have everything setup and working properly except that the trail renderer always faces the camera. I want the trails to be ...