Celestia Forums

Looking at the render.cpp function there's a long rant/comment about
glScale()'s effect on normal vectors. glEnable(GL_NORMALIZE) should
solve the problem.

-Brian Paul

BrianPaul wrote:Looking at the render.cpp function there's a long rant/comment about
glScale()'s effect on normal vectors. glEnable(GL_NORMALIZE) should
solve the problem.

-Brian Paul

I did this for compatibility and performance with older hardware/drivers. The vertex programs I use always normalize normal vectors when doing lighting.

--Chris