Hi there, time for some updates on my voxel rendering pipeline! Lot of work behind the scenes last month, and now taking some time to pause and reflect on where the interesting research opportunities are. The lowdown for people just joining in: I’m building a Sparse Voxel Octree raycaster, so …
After a short venture into suggestive contours, I’m back on my voxel raycaster. I’ve been implementing multiple light sources and phong lighting, as well as drasticly improving the way models are loaded – this allows for even bigger voxel sets to be used. Limiting factor is now my voxelizer itself, …
A short video I made demonstrating the improvements in my voxelizer, a higher grid resolution (1024x1024x1024) and multiple light sources. A short video I made demonstrating the improvements in my voxelizer, a higher grid resolution (1024x1024x1024) and multiple light sources.
Just a quick piccie: thanks to optimizations in my out-of-core octree building algorithm, I can now render even bigger voxel fields (1024^3), which is about 107 million voxels. Reading in the data is the slowest part, the actual building of the octree is blazingly fast (< 500 ms), since the …
Transforming a polygon mesh into a 3D grid / voxel data set is still the quickest way to play with some interesting data in any voxel-based application. You can do this interactively on the GPU, using Eisemann/Décoret’s method, described in Single-pass GPU solid voxelization for real-time applications (2008). When it comes to …
In order to correctly voxelize larger meshes with configurable parameters (shell thickness, seperability parameters, …) I’m now implementing the method described in An Accurate Method for Voxelizing Polygon Meshes, by Jian Huang, Roni Yagel, Vassily Filippov and Yair Kurzion. In the paper, they provide a mathematical basis for voxelizing polygonal meshes, and …
I’ve uploaded a new video containing my most recent work on my Sparse Voxel Octree raycaster. Thanks to advances in my own voxelizer, I’ve been able to include sampled normal information and render diffuse shading now. I’ve uploaded a new video containing my most recent work on my Sparse Voxel …
After quite a struggle, I managed to compile the Walt Disney Animation Studios BRDF Explorer (released during SIGGRAPH) myself. Only to find out that a binary has been available for 2 days. I’ll post some quick info on it anyway, for those interested in compiling (future versions) themselves. Thanks go …
I was fortunate enough to attend the talk Rich Geldreich of Valve Software gave at the OpenGL Anniversary party duing SIGGRAPH 2012 in the JW Marriot Gold Ballroom in LA: “Left 4 Dead 2 Linux: From 6 to 300 FPS in OpenGL.” Update: As Rich himself was so kind to …
After my HTC Wildfire and Motorola Atrix, I’m now on my 3rd Android phone in 3 years: the Samsung Galaxy Nexus. You’d think they break easy, I’m superclumsy or Android phones have a very short lifespan. None of that is true: both old phones I’ve rooted/unlocked now serve family members …