IR map from file problem

[Dave Oliver]

i calculated my irradiance map, saved it, and told vray to render from the file. but instead it quickly runs through this very dark one and then starts rendering. I created a new test scene and tried doing the same thing, but it worked fine. So i think it must be something in this file. Happened to anyone before?

[Dave Oliver]

i can tell it has something to do with my vray proxies, but i dont know how to fix them without deleting them.

[Ricardo Eloy]

The dark passes are the interpolation passes being calculated. You have one or (by the screenshot) more materials that use it, and VRay uses IrrMap to calculate them. It's not a problem.

[Dave Oliver]

thanks...yeah, i thought the dark pass was causing this blotchyness in my image, but after trying it without the interpolation passes, i realize it is blotchy anyway......so new question ;p

 

any idea why this IR map that took forever is rendering out blotchy? i guess it might be too late to correct at this point, but i dont have as good of a grasp on all the vray settings as some people here so i thought you might know. i had interpolation and subdivisions turned up pretty good, and did passes from -3 to -1

 

thanks again

[Ricardo Eloy]

It would be helpful seeing all your settings, but at this point maybe -3/-1 is not enough. I mean, it's a low setting, judging by the amount of details you have there, so I'm just guessing.

[Dave Oliver]

almost everything is default - irr map & QMC. set irr map setting to medium, increase subdivisions to 150 and samples to 75.

 

the size of the whole image is 2000x1500. i have heard you guys talking about computing it at 1/2 size or so. will i get smoother result with a smaller map computed at higher settings?

 

and what does it mean to store a light with the irr map? i thought all light was stored there anyway...