Forum: Poser - OFFICIAL


Subject: WIP Clouds shader for Poser

bagginsbill opened this issue on Jun 01, 2009 ยท 57 posts


bagginsbill posted Tue, 02 June 2009 at 12:32 PM

OK then. I'm pretty happy with fBm for the density pattern. This is what I was looking for.

But ... to get this kind of detail, I had to increase the number of samples. Each point in the render required samples equivalent to a ray-tracing depth of 100. Imagine trying to get Poser to do that with the renderer, instead of the shader, going through 100 layers of transparency. Impossible.

I was able to make each ray with slightly fewer nodes - just 9 instead of 12. So this is 922 nodes. This reaches my limit of tolerance for load times - it took 25 seconds just to load the shader.

Render time was not too bad - about 4 minutes. But I have some ideas about how to change my sampling strategy, which will let me increase speed by a factor of 10. If I can get this under a minute, I'll be happy.


Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)