Tag Archives: renderman

How to render a normal map

Posted on February 27, 2011 by sitexgraphics

A poster to the Rhino newsgroup recently asked for an easy way to render a normal map based on a model in Rhino.  This simple surface shader can be used to render such a tangent-space normal map with Air: surface … Continue reading →

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Adding an occlusion pass

Posted on December 21, 2010 by sitexgraphics

Air’s surface shaders provide a consistent set of output variables for common rendering passes such as diffuse, specular, reflection, and per-light channels.  Any or all of these values can be saved during a single invocation of the renderer, either to … Continue reading →

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Visualizing procedural bounding boxes

Posted on November 1, 2010 by sitexgraphics

Procedural primitives are a powerful mechanism for efficiently rendering complex scenes.  In a scene file a procedural primitive is defined with the Procedural RIB command: Procedural “type” [arguments] [minx maxx miny maxy minz maxz] The array of 6 floats at … Continue reading →

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