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Re: Specular map question
Cool guys. Lots of discussion on the subject here - it seems like a problem alot of us have come up with before. I'd actually thought of the bump map/ spec map with small, fine bumpiness - should give a "wider" specular highlight, driving home after I posted the question. However, when I got around to trying it that night.… -
Specular map question
Hey - I've posted question this in my competition thread aswell - but I think that this is a better place to post it really... I know how easily posts can be missed in the competition forum if your not taking part yourself. If this is against any board rules - MODS - please feel free to delete this thread. I was wondering… -
Re: Specular map question
Hi FC We had a neat discussion about this issue (and also many others) on the old board. I think I have it archieved somewhere, I'll see what i can do. Besides that(and i don't know if it works or not) maybe you could try to use the bump map to get the control you want. If you place many many little dots on the bump… -
Re: Specular map question
Hmmm yeah Per I thought about that but I had no chance to check this in practice hence I thought it could be useful to share the idea anyway And, well, even if fine details like that 'could' be added on a highresolution bump, the problem is not solved when the texture size decreases as LOD is getting down. Damn. Is there a… -
Re: Specular map question
[ QUOTE ] FatAssasin: You talk of what happens in the real world. [/ QUOTE ] No, I'm talking about what happens in a 3d rendering engine. You keep bringing up real world examples, and that just isn't going to help with the problem of controlling the size of spec highlights on the computer. I'll repeat, that's why there is… -
Re: Specular map question
Okay, now make the specular highlight bigger to cover a greater area of the face using a smaller bump map. That's the theory right? I guarantee it's not going to happen. Fat_Cap: To answer your initial question, "How would I go about doing this in the constraints of this competition?", what are the exact constraints?… -
Re: Specular map question
[ QUOTE ] FatAssasin, for someone with complete disregard for light theory, you are surprisingly absolute in your opinions. [/ QUOTE ] Easy there, big fella. I think we can continue to have an intelligent discussion about this. My whole point is that real world light physics don't apply when talking about how to get a… -
Re: Specular map question
What you guys really want is control over the spread of the specular highlight, right? In Maya you have the "Cosine Power" attribute for Phong materials. Even the name shows you what you are controlling: the power that the specular colour is taken to, to achieve the final colour. Crazy Butcher has it accurate in his… -
Re: Specular map question
the exponent of the specular term in the phong lighing equation is responsible for its shape afaik color = attenuation*(max(0,dot(N,L)*diffuse + pow(max(0,dot(N,H)),shi)*gloss)*lightColor so the *gloss = specular map is just a multiply layer how much of your specularity is visible, the "shi" shininess factor would change… -
Re: Specular map question
Maybe not the best example, but maybe it gives you some idea. 3ds max 5.1 Scanline renderer Max 2.5 Star supersampler Specular Level = 100 Glossiness = 75 Left = no bump, right = bitmap Bump @ 100
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