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Specular maps
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Specular maps // Roundtable
Post by splinters // Aug 21, 2007, 5:18am
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splinters
Total Posts: 4148
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Ok I am a bit jetlagged so maybe after some sleep this might seem like a stupid question but does tS7.5 support specular maps?
If not, why not in this day and age?
I loaded up the head model made by genhead before I left for holiday and it supplied both a texture map and a specular map but I had to make my own bump map to use. I just thought using the specular map in the reflectance channel (or similar) would have improved the image but I could see no way of putting it in. Then again, I was in model side...maybe workspace can do it?? |
Post by TomG // Aug 21, 2007, 5:49am
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TomG
Total Posts: 3397
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Model side uses layers to achieve similar result - rathen than an image that controls the specular intensity at a given point, you use an image that controls the transparency for a layer at a particular point, with the layers having different specular values. A specular map could be used there, with the greyscale no longer directly representing the different specular values, but instead representing the transparency between the two layers with different specular values (so achieving a range of specular values).
workspace allows you to turn any parameter into a map if I remember rightly, eg diffuse, specular, and so on. Though this might only work for real-time, I can't recall, as never really used the feature. It may be a particular shader that acheives that too, again I dont recall - all I know is it was possible to do there, to map any value in the reflectance shader to an image.
HTH!
Tom |
Post by Bobbins // Aug 21, 2007, 6:26am
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Bobbins
Total Posts: 506
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On Model side ME, select mapped phong as the Reflectance shader. Every channel can have a map assigned to it, including Specular (click the 'Spc' text and then the grey input are to the left of it to get the load image dialogue). |
Post by splinters // Aug 21, 2007, 6:51am
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splinters
Total Posts: 4148
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Cheers guys, gonna go out and catch up with friends tonight but then I will give this a try and see if it improves the render at all. |
Post by Jack Edwards // Aug 21, 2007, 7:12am
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Jack Edwards
Total Posts: 4062
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VRay 1.52 also supports specular mapping with the mapped reflectance shaders.
-Jack. |
Post by splinters // Aug 22, 2007, 2:58pm
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splinters
Total Posts: 4148
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Mmm, works fine and that specular map seems to improve the render slightly...now for a Vray version.....:) |
Post by W!ZARD // Aug 23, 2007, 7:44am
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W!ZARD
Total Posts: 2603
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LOL - are you trying to reproduce your holiday suntan on your avatar? |
Post by splinters // Aug 23, 2007, 8:36am
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splinters
Total Posts: 4148
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Mmmm, I could ramp the levels up in Photoshop a bit to recreate my tan...:rolleyes: |
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