Advanced textures - AccuRender nXt2024-03-29T06:54:18Zhttp://accurender.ning.com/forum/topics/advanced-textures?xg_source=activity&feed=yes&xn_auth=noI'm assuming you're asking fo…tag:accurender.ning.com,2019-05-10:6293855:Comment:1357072019-05-10T14:49:02.540ZRoy Hirshkowitzhttp://accurender.ning.com/profile/RoyHirshkowitz
<p>I'm assuming you're asking for nXtRender. It's been a long time since I've looked at this stuff-- here's what I can remember:</p>
<p>Displacement mapping changes the underlying geometry using a texture. It's an expensive procedure, but can sometimes be worth it. It has three settings-- one for the height of the thing, one which controls the size of each element in the newly formed mesh (this one affects performance a lot), and one which controls where the displacement begins. This third…</p>
<p>I'm assuming you're asking for nXtRender. It's been a long time since I've looked at this stuff-- here's what I can remember:</p>
<p>Displacement mapping changes the underlying geometry using a texture. It's an expensive procedure, but can sometimes be worth it. It has three settings-- one for the height of the thing, one which controls the size of each element in the newly formed mesh (this one affects performance a lot), and one which controls where the displacement begins. This third setting I think goes from -1.0...0.0 and default to -0.5. At 0, the displacement begins on the surface itself and moves "up" from there (in the direction of the surface normal.) At -1, all of the displacement is "below" the surface.</p>
<p>For the Specular question I'm assuming you mean Specular Intensity. This will respond to the Strength setting in the map. If you set the strength to < 1.0 then the materials base Specularity will contribute some. Otherwise the map should do it all.</p>
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<p>Let me know if I'm wrong here. It's somewhat different under ArStudio.</p>
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