Tips on how to calculate vertex normals that gives a nice smooth surface shading?

Lionheartadi · 2003-06-20T03:27:40

Hi I need some general help with vertex normal calculations. Well I have calculated vertex normal per triangle basis, in other words I have used one vertex normal to all of the vertexs on a triangle. But as is known this doesn''t give you a smooth shade across a surface. So I tried to calculate vertex normals that gives you a nice smooth shading surface, but I think I failed because the vertex normals are pointing way of the target. I used the dot product to get the angle between two triangles calculated normal, but the problem is when you have a vertex shared with more than two tirangles. How do I get an average normal if the vertex is shared by more than two faces. I made some pre calculation on paper and thought of the code, but my way seems to weird and to slow to perform. So if there are any tips that someone can give me please help me. I should say that math isn''t my stongest area, but I like programming and especially gameprogramming so I want to learn these things. Thank you for any help possible.

Math and Physics Programming

Started by Lionheartadi June 16, 2003 02:14 PM

11 comments, last by Lionheartadi 20 years, 10 months ago

grhodes_at_work

1,385

June 17, 2003 10:08 AM

quote:Original post by drslush
AP, how many questions are ever asked on this forum that haven''t been asked before? Seriously...

So true,

. But still, the search button should be the first place everyone looks before they post a new question.

Graham Rhodes
Senior Scientist
Applied Research Associates, Inc.

Graham Rhodes Moderator, Math & Physics forum @ gamedev.net