Search found 6 matches

by voxel
Fri Jul 27, 2012 6:37 pm
Forum: General Development
Topic: A tool to explore B*H trees
Replies: 6
Views: 2666

Re: A tool to explore B*H trees

Hello everyone! I made the BVH version available. I haven't worked nearly as hard on optimizing the BVH as I have the BIH and it shows in the debugger! :oops: One of the more interesting results of this version is that you can plainly see the difference between the breadth-first search that I employ...
by voxel
Fri Jul 27, 2012 8:12 am
Forum: General Development
Topic: A tool to explore B*H trees
Replies: 6
Views: 2666

Re: A tool to explore B*H trees

Update time! I managed to implement some of what ingenious had suggested within the BIH example. http://jon-carlos.com/projects/bxh/examples/draw_bih.html There is a slider for the number of objects and an input for a range of sizes. The size is a normal distribution within the range you select. The...
by voxel
Wed Jul 25, 2012 6:09 pm
Forum: General Development
Topic: A tool to explore B*H trees
Replies: 6
Views: 2666

Re: A tool to explore B*H trees

Can you please add some random object generator, where you can specify the number of objects? Of course! That is a really simple change. Further suggestions would be to add non-axis-aligned geometry, The B*H structures only know about AABBs so the trees would look similar. Though I can understand d...
by voxel
Wed Jul 25, 2012 10:40 am
Forum: General Development
Topic: A tool to explore B*H trees
Replies: 6
Views: 2666

A tool to explore B*H trees

I needed a way to sanity check my BVH/BIH libraries so I wrote a quick 2D tool to interactively display a tree's nodes and allow you to play with the cost constants: http://jon-carlos.com/projects/bxh/examples/draw_bih.html And: http://jon-carlos.com/projects/bxh/examples/draw_bvh.html They should w...
by voxel
Fri Jul 13, 2012 2:07 am
Forum: My First...
Topic: My second ray tracer actually...
Replies: 1
Views: 2627

My second ray tracer actually...

I have been slowly working through the PBRT book and have been rewriting some of the millions of wrong design decisions I made the first time I implemented my toy JavaScript ray tracer. I want to make a real general purpose JavaScript ray tracing engine because - who really needs performance? :lol: ...
by voxel
Tue Jun 12, 2012 7:25 pm
Forum: Data Sets
Topic: A great model resource in Wavefront OBJ format
Replies: 0
Views: 5216

A great model resource in Wavefront OBJ format

I was searching for some standard scenes in Wavefront format to test in my own toy renderer and I found this in the Blender forums:

http://graphics.cs.williams.edu/data/meshes.xml

Jon

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