The iray cometh

#281

I am a huge supporter of iray and I am very excited about what the future holds. I feel like installing iray in maya right now is a bit like seeing excerpts of an obscure movie at comicon. It can be very exciting and you can see some great stuff, but its far from a polished movie theater experience.

I would recommend that anyone that tries out iray never put it into production on anything that has a near future deadline. It is not production ready in that way. Having said that we have shipped a few shots that used it, but they were short and simple.

A good reason to play with it now is that there are limitations to GPU computing, There is very little gpu memory right now. This is not very likely to change. Regular CPUs will always have more ram available than a GPU. So I am not convinced that there will ever be a time that GPU rendering totally takes over. But having iray as a mode of mental ray seems like a great move. You can always fall back to regular mental ray if you have a heavy scene. Now its just a matter of getting iray up to mental rays level of refinement. (kind of an oxymoron)

Anyway, all we can do is wait and watch and hope that iray will get better. In the mean-time, regular mental ray is my staple.

#282

I have nothing against iRay - it looks really good - but I wouldn’t have much faith in it unless something changed at AD with regards to mental ray’s handling. Progressive rendering - any day now!

#283

I can do 2 or 3 test then gives me this error:

// Warning: (Mayatomr.Script): Computed memory limit of -635 MB is below threshold, setting to 128 MB instead //

I have to reboot Maya and then work for another 2 or 3 tests …

help!

ps: i have a nvidia gtx 480, I7 with 16gb of ram, ssd hd 128 gb :cry:

#284

hey guys

iray works fine for me in maya 2012 :slight_smile: maybe someone have an idea how i can reduce the gain in my images. i know that i can increase the samples, but maybe there is another way to get a good looking image with an acceptable rendertime. i think 4.5 hours rendertime are to much for full hd…

here is my testrender with 2000 samples and a rendertime of 7mins:

a highres version with 8000 samples in full hd and a rendertime of 4.5 hours:

hope for some cool tips and tricks :slight_smile:

#285

iRay rocks! :beer:

using the script linked earlier in this thread I’ve done this test:

Please note that the gargoyle I’ve used comes from Jeff Pattons downloadable MAX iray test.

Max samples 2048, done in 1:33:12 with a GTX 470
mia_photographic_exposure and physical_lens_dof connected to the camera lens, mib_lookup_spherical with a HDRI connected to the environment slot. Used one arealight with physical_light and mib_cie_d in the physical lights’ color slot but I’m really not sure if that light actually does anything… haven’t tested more yet.

#286

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