[Radiance-general] Rendered mountains

Mark Stock mstock at umich.edu
Fri Jan 18 07:29:44 PST 2013


Hey Radiance folks,

I've written a pile of scripts to convert USGS elevation data into 
watertight trimeshes for 3D printing. While doing so, I had to make sample 
renderings of lots of mountains. So, if you like mountains and like 
Radiance, you might like these images.

http://www.shapeways.com/shops/TinyMtn

I hope the renderings are good enough to warrant the shameless plug.

Details:

My own rockpng program converted the 16-bit PNG heightfield to a trimesh. 
Meshlab-server did some automatic processing on the mesh. I used GMSH to 
generate text and Carve to union that text with the model (all F/OSS). 
Models are 500k-900k triangle Wavefront .obj files (easy to read and 
write), converted to Radiance mesh format for rendering. The room was 
modeled after my living room (down to including two large green trees out 
the two windows), and rendering used an imagemap of my stone coffee table 
and some rpict depth-of-field with -aa 0 -ab 3 -ad 16 for ambient settings 
and -ps 1 -u+ -w- -lw 1.e-3 -ds 0.2 -dj 0.7 for rendering. The raw .hdr 
images were dropped to 8bpp first, then reduced 4:1 for the site (less 
noise doing it in that order).

Mark
markjstock.org
tinymtn.com



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