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Hobbiticus

DOT3 Bumpmapping tutorial?

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I''d like to so some DOT3 bump mapping in the game I''m working on, but I don''t know where to start. I looked at nVidia''s site for stuff, but all of their demos aren''t documented very well if at all, and there''s stuff in there I''ll never figure out. I would preferably like a tutorial that uses nVidia extentions rather than ATi because I have an nVidia card, and it''s kinda hard to test with ATi extensions

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you can use GL_ARB_texture_env_dot3, that works on both cards

you can rtfm''s.. there are tons of documents, papers on the nvidia and ati page documenting that stuff..

if you can multiply a texture with a lightmap with multitexturing, you''re just milimeters away from simple bumpmapping with a directional lightsource..

"take a look around" - limp bizkit
www.google.com

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rtfm = Read The Friendly Manual

GL_ARB_texture_env_dot3 is an OpenGL extension, if you look up this extension on the Nvidia/Ati websites, there are demo''s, and you can read the spec, I think it''s in the Opengl 1.3 pdf available at Opengl.org

Hope that helps.

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quote:
Original post by Exellon
It can also mean: "Read The F***ing Manual." Depends on the context and attitude of the post.


Yeah, I was trying to keep a positive light to things.



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