Normal Mapping Cube map technic!
Hi all!
i m currently using the cube map technique to render normal mapping... is there a other way to achive normal mapping witout a cube map?
Thx
You can do normal-mapping with normal texturing and register-combiners (asuming you're using opengl)... Or am I getting you all wrong?
Yes i m using opengl... but the thing is... the cube map always using glActiveTextureARB(GL_TEXTURE1_ARB); so for mutitexturing we need to do a second pass... i read that the cube map gives a better detailed normal mapping... so does it worth the second pass?
THX
THX
Quote:Original post by golgoth
so does it worth the second pass?
I wouldn't say so, since a whole pass will take up alot of extra rendering-time...
But, try both and see what fits your needs best :)
OK, I haven't implemented normal maps so feel free to ignore me.
I'm guessing you're using the cube map just for normalisation, yes? If so, you could do it in a shader instead - maybe slower, but frees up that tex unit for you.
Is it worth normalising? Up to you - what does it look like?
I'm guessing you're using the cube map just for normalisation, yes? If so, you could do it in a shader instead - maybe slower, but frees up that tex unit for you.
Is it worth normalising? Up to you - what does it look like?
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