poor man's indigo...

[zsouthboy]

Don't expect miracles with CUDA.

Oh, and if you need help or ideas while implementing it, http://forum.beyond3d.com/forumdisplay.php?f=42

[joegiampaoli]

I LOLed (oh, and - "You eat pieces of shit for breakfast?")

Not just pieces of it, I eat them with fat free skinned milk. Can't go around in the morning chewing the stuff dry you know...

[eman7613]

i've just downloaded the CUDA sdk and documentation from NVIDIA.

since i've got a geforce 8800GTX at home it should work.
i just need to change all my floats and ints to cuda floats and ints in my rendering code and embed it into a gpu thread (device thread).

i can load my kdtree and image buffer(s) into video ram.

i should be able to run ~128 threads at once since the 8800gtx has 128 stream processors.
how fast these are i don't know, they will be much slower than a cpu's but according to the docs they are ~10x as fast (all 128 together) as a core2 duo in FLOPS...

which would mean the g80 has 40x the float power vs 1 core of my pentium D.

this would translate to ~10 minutes to render the picture posted above (the best one) which took 6.5 hours.

offcourse with overhead and stuff i wonder what the real result would be...
i'll dig into it this weekend...

greetz,
radiance

buaah, got into this late. You might want to avoid using up all 128 cores, i ran a simple test on my 8800 and there are some strange, seamingly random times were one thread will use two sps (but its not prominent).

[OnoSendai]

Awesome, sounds promising.

[Kram1032]

Really promising
just one question:

If you use 2x32 bit, is that like 64 bit or like 32 bit + 32 bit? (as that wouldn't be the same)

[Kram1032]

I see

[PhilBo]

Stupid question...what is the difference between what you are trying to do (which I think is awesome btw) and nVidia's Gelato?

[oodmb]

gelato is based off of renderman, not photorealism