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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
[ 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
[ QUOTE ] FatAssasin: I find it funny that in your example of the highlight not changing size, it actually does change size [/ QUOTE ] I knew someone was going to say this. It really doesn't change size. I'm talking about the spread of the highlight over the entire surface of the sphere, not the illusion that it's gotten… -
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 -
Re: Specular map question
Pior's right, the bump map idea is exactly what's going on with specular width. Fine bumpiness = wide highlight. It may help to think about specular as being just a reflection of the light source. So when a surface is bumpy you're breaking up the reflection into lots of little reflections. Good example is the reflections… -
Re: Specular map question
Bump maps will break up the specular highlight, but not really change how sharp it is. In a 3D app like Max, the spread of the specular highlight is controlled by the Gloss map. Pure white gives you sharp highlights, like in the eye, and closer to black gives you a nice spread out shine, like on cloth. Most, if any, game… -
Re: Specular map question
[ QUOTE ] [CrazyButcher] so the *gloss = specular map is just a multiply layer how much of your specularity is visible [/ QUOTE ] 3ds max has it labelled backwards, not sure why. The spinner for Specular Level controls brightness, and the spinner Glossiness controls width/falloff. We're using an exponential curve, not too… -
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
[ QUOTE ] [FatAssasin] 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. [/ QUOTE ] Right, but it's not gonna happen because software lighting doesn't emulate real-world lighting properly. There's a lot…
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