Fresnel reflective shading with Away3D

Finally, something new! But no, it’s not any of the bigger things I’ve been hinting at before. However, I’ve been hard at work at those (and other) projects for months, and ended up with tunnel vision and an annoying rut. I really needed to do something smaller again for some immediate visual fun. When Bartek…

September! Speaking at Adobe User Group BE meeting

The summer holidays aren’t even over yet and September already seems like it’s going to be a great month! Apart from the fact that I’m going to Flash on the Beach, there’s also something for us Belgians that’s a bit closer to home: the annual Adobe User Group meeting & barbeque on September 12th! And as it…

Some Flash Pixel Bender performance tips + benchmarks

Since I started playing around with Pixel Bender in Flash, I’ve been trying out some different approaches here and there and learned a thing or two on performance optimizations (and quirks). As many people use PB specifically for its performance, and not much has been written on the subject, I thought I’d share my experiences…

Slice-based volume rendering using Pixel Bender

After a futile exploration of sparse voxel octree ray casting using Alchemy (which was fun but hopeless), I turned towards another technique for volume rendering, using view-aligned slices. The approach is not much different from the rendering of this older experiment, in which the slices were aligned to the object itself. Again, we’re using the same…