Hi there, I’m having the following problem. My scene consists of a studio setup in the shape of a bowl, a character, and 1 vray sphere light set on ‘affect diffuse’ only, and ‘store with irradiance map’ on. GI: irradiance map and light cache. Max 2012 vray 2.40.04. The scene renders quiet slow, a…

Hi and welcome to the forum, When you rendered your scene with ‘use irradiance map’ unchecked for your bowl material the GI will have been calculated using brute force for the objects with that material applied. However, if your light is set to ‘store with irradiance map’ it will be excluded from l…

Hi Daniel, Thanks for the quick reply. Your explanation sounds very reasonable :slight_smile: But i’m still confused why the soft edge of the bowl is much more visible with the one, and almost invisible with the other technique. So not only will those object render much darker, which they do, but …

[image] Happy holidays! But i’m still confused why the soft edge of the bowl is much more visible with the one, and almost invisible with the other technique. So not only will those object render much darker, which they do, but they are also lit differently? It’s difficult to say without seein…

Thanks Daniel! Like Svetlozar Draganov said, maybe it’s more helpfull to upload the scene, so here it is. scene.zip (68.2 KB)

@mw @a2studio I’ve changed your sphere light into a dome and the lighting is much more even. I’ve changed to the render settings as well but only so I could see the result more quickly. scene.zip (67.6 KB)

Wow, great result, and it renders really fast. Thanks a lot! Did you only tweaked the irradiance map parameters as far as render settings go?

[image] Light Cache questions Did you only tweaked the irradiance map parameters as far as render settings go? I don’t think I changed anything else other than the resolution is a quarter of the original.

Ok. Thanks again, you’ve been a great help! Cheers

material setting 'use irradiance map' causes big differences in render results

V-Ray V-Ray for 3ds Max V-Ray for 3ds Max :: Issues

svetlozar.draganov December 11, 2013, 10:18am 5

If you could attach the scene that would be great.
Like DanielBrew mentioned it is difficult to predict why the result is different without knowing how the scene is set up.

Brute Force Optimization questions... GI is so noisey but RGB looks fine?

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material setting 'use irradiance map' causes big differences in render results

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