Pre-pass oddness

[Smalerbi]

I was wondering if anyone has experience this before. I’m currently working on a residential interior and I have been adding furniture pieces as I go. I’m using IR map for the first bounce and LC for the second. For test renderings, I use the “Very Low” preset for the IR maps and low setting for LC. Typically this would give me 2 IR pre-passes before it renders. As I was adding furniture pieces, there was a point where the pre-pass jumped from 2 to 5 passes. The first 2 passes where light and the remaining 3 passes where dark. I think this has something to do with the glossiness because when I turned it off, it went back to 2 passes. Could someone please explain why this is?

Now for the other pre-pass issue. After calculated the IR and LC maps, I loaded the saved maps for my rendering pass. Instead of going straight to the rendering, it went back through 4 IR pre-passes. The pre-passes where quicker then the original IR calc. Does anyone know why this is happening?

Thanks,

Scott.

[bluescreen2]

check your materials. are all glossies-interpolations unchecked?

[RErender]

yep it is definitely interpolated glossies

[Smalerbi]

yep it is definitely interpolated glossies

Ok…..thanks. I will go back and take a look, however, is there a simple globel setting or do I need to correct this on the individual object and material basis?

[RErender]

I am afraid it is per material, in globals you can only turn of glossie reflections all together, I guess in some cases you could get away with that. Be carefull when you turn interpolation off to lower the sub divs since they are probable at 50 or so, 12 +/- is pretty good for standard glossies.

As I remeber there are a few scripts that will let you change them en masse, you might try searching the forum a bit

[percydaman]

search for vray automator..

[Smalerbi]

I am afraid it is per material, in globals you can only turn of glossie reflections all together, I guess in some cases you could get away with that. Be carefull when you turn interpolation off to lower the sub divs since they are probable at 50 or so, 12 +/- is pretty good for standard glossies.

As I remeber there are a few scripts that will let you change them en masse, you might try searching the forum a bit

Thanks Eric