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Physically Based Rendering: From Theory to Implementation

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218 points ahamez | 1 comments | 13 Jan 25 14:28 UTC | HN request time: 0.213s | source
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phkahler ◴[16 Jan 25 17:49 UTC] No.42728459[source]▶
Is there a standard OpenGL (ES3) shader I can drop in a GPLed application that uses a decent (is there a standard?) BRDF similar to Schlick with red,green,blue, and roughness?

I've wanted to add this capability to Solvespace for a while. I did my own implementation with the Fresnel term and it looked OK, but I want something "standard" and correct.

replies(5): >>42729134 #>>42730403 #>>42731800 #>>42734243 #>>42739761 #
1. TinkersW ◴[17 Jan 25 04:57 UTC] No.42734243[source]▶
Even if you have a standard specular & diffuse model, indirect lighting is really important and you can't really just drop that into a shader.

If you want a standard I've go with OpenPBR, it is well documented and looks nice. Just skip the extra layers to begin with(fuzz/coat etc).