[osg-users] World space normal.

Rowley, Marlin R marlin.r.rowley at lmco.com
Wed Jul 11 06:17:17 PDT 2018

I have a world space vertex computed as follows:

WorldVertex = osg_ViewMatrixInverse * gl_ModelViewMatrix * aVertex;

I would like to get the world space normal from this vertex.  Is there an equivalent osg_* matrix that does the same thing?

I tried this:

NormalWorld = gl_NormalMatrix * gl_Normal;

But I know that is only putting the normal in view space.

Marlin Rowley
Software Engineer, Staff
[cid:image002.jpg at 01D39374.DEC5A2E0]
Missiles and Fire Control
972-603-1931 (office)
214-926-0622 (mobile)
marlin.r.rowley at lmco.com<mailto:marlin.r.rowley at lmco.com>

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