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graphics

Head Render

Sparse Voxel Octree Ray Casting: Texture update

After working on the Out Of Core SVO Builder for the last few months (Paper, Github), I did some hacking on my Voxel Raycaster and voxel pipeline so it now supports sampling voxel colors from textures, which allows for some nice rendering. The details: Simple C++ CPU implementation of Voxel Raycasting. …

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Real-time Suggestive Contour Rendering

Realized I hadn’t posted this video yet: a couple of months ago, I took a break from the voxels and octrees to redo my Suggestive Contours GPU implementation. My shader-based approach combines the advantages of an object-space method in an image-based approach: It works for high-polycount models Real-time control over …

Add Empty Nodes Time

Out-Of-Core Sparse Voxel Octree Building: Skipping empty space

I’m currently rewriting my Sparse Voxel Octree builder (and the preceding voxelization pipeline) for a paper I’m writing and hoping to submit to the HPG (High Performance Graphics) conference. The goal is to have a total out-of-core pipeline to go from polygon mesh to an annotated SVO. Annotated, as in: …

glob

Sparse Voxel Octree Raycasting: December Progress

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, …

render_david

Rendering bigger voxel sets

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 …

brdf_explorer

Compiling the WDAS BRDF Explorer

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 …

Importance Sampling Techniques for Path Tracing in Participating Media

Eurographics Symposium on Rendering: Day 3

On the third and last day of the Eurographics Symposium on Rendering (EGSR 2012) in Paris, the 29th of june, some attendees turned up with a fuzzy head – I guess most of the German guests had to drown their loss in the EK semi-finals with a lot of wine As …

blur_focus

Eurographics Symposium on Rendering: Day 1

Note: You can find my overview of Day 2 and Day 3 on this blog as well. I have the privilege to attend the annual Eurographics Symposium on Rendering (EGSR) in Paris, France this year. The first warm day is behind us, and it’s time to reflect on and tell about …