The Persistence of Ignorance

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Grass after rain

POV-Ray 3.7 RC3, May-2011 (546 K)

Just a quick scene to try to get back at "just for fun" raytracing...

The grass is a very old code of mine based on SDL-created meshes, revised now to add uv mapping for the texture (derived from a leaf picture from, and also to model the central folding of the blades.

The scene is surrounded with a cloudy HDRI sky, and the lighting as reinforced with just a big area light above.

The drops are blob components traced() from above, using a 4-point construct, to test if they rest totally on the same blade. In total there are 30000 drops, with 2 components each one to try to avoid perfect spheres, forming a big blob: that's why sometimes they merge if the placement is close.

This image is postprocessed with Gimp to add together two renders: one with just pigments, and another with reflections and micro-normals but without lighting. Combined render time was 2h15m on a Phenom X4.

WIPS, tests and other images:

grass-01 grass-02 grass-03 grass-04 grass-06

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