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Author Topic: Any software using pathtracing ?  (Read 1198 times)
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ker2x
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« on: September 01, 2013, 03:23:09 PM »

Hello forum, long time no see.

Simple question : do we now have a software rendering mandelbulb using pathtracing ?
Thank you smiley
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often times... there are other approaches which are kinda crappy until you put them in the context of parallel machines
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eiffie
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« Reply #1 on: September 01, 2013, 05:50:31 PM »

I have been doing gi with glsl scripts for a while but my method is a bit "different". smiley Here are some examples:
<a href="http://www.youtube.com/v/WjWyM7TTydw&rel=1&fs=1&hd=1" target="_blank">http://www.youtube.com/v/WjWyM7TTydw&rel=1&fs=1&hd=1</a>
These are between 64 and 128 ray casts per pixel.
It is using a very simple method to determine a probable direction for each ray bounce (importance sampling) and then determining the amount of light energy left after the bounce (a perfect reflection loses no energy, a diffuse one colors it). The rays are followed backwards from the camera into the scene and only stop when they run out of energy, go out of bounds or hit a light.
If you are interested I can post Fragmentarium code for it. This is a different (simpler) scheme from my earlier gi efforts which were biased towards the light.
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