Ported my renderer to . Even on the is way too slow to be useful, it's quicker to get the same visual quality by plotting a zillion points.

The attached has around 8k samples per pixel, taking around 1min/frame (1 hour total). 256k subframes for motion blur, each being a single path of 16k iterations. Only plain simple stuff without xaos control..

I switched to ulong accumulation buffer, with 48.16 linear-light fixed point - should be safe enough against overflow and it has native atomics instead of having to do a cmpxchg loop with uint/float unions.

I need to check if AMD have implemented OpenCL device fission yet, because without that it hogs my desktop session making it unusable (ssh -X sessions work fine from outside, interestingly).

Show thread
Follow

I implemented motion blur with a power law for weighting time in the shutter-open interval (for directional effect). Can also make the shutter much longer than the frame time for the interesting trail effects.

The video upthread was using this image as a 2D palette:

ichef.bbci.co.uk/news/660/cpsp

but the auto-white-balance part of the code seems to have made it more purple. The hivis is still vaguely visible.

Sign in to participate in the conversation
post.lurk.org

Welcome to post.lurk.org, an instance for discussions around cultural freedom, experimental, new media art, net and computational culture, and things like that.