Digital Art Zone

wancow - 03 January 2013 12:56 PM

Okay, I found out something interesting just now.  If I lower the intensity I do, in fact, lose that colour bounce, but if I double the intensity scale, I seem to get it all back.  Have you explored that yet?

I haven’t but that makes sense.  What you’re doing.  If you lower intensity to 50% but increase the scale to 200% you’re back to where you started.  (Effectively 100% since 50% x 200% = 100%)

Make sure you catch these examples of Bounce Light (GI) mode on the previous page: http://www.daz3d.com/forums/viewreply/210362/

Basically, the first render is UE2 with GI enabled, the light intensity at 100%.  The colour bounce is what you’d expect.  The second is the intensity at 50%, and the colour bounce corrospondingly goes down.  The third is still at 50%, but with the Intensity Scale set to 200% so I get all the colour bounce back that I had in the first render.

wancow - 03 January 2013 02:07 PM

Basically, the first render is UE2 with GI enabled, the light intensity at 100%.  The colour bounce is what you’d expect.  The second is the intensity at 50%, and the colour bounce corrospondingly goes down.  The third is still at 50%, but with the Intensity Scale set to 200% so I get all the colour bounce back that I had in the first render.

Yes, as explained above that would be exactly as expected since 50% x 200% = 100%.

Forgive me… I’m a little giddy for having discovered something allbymyself…

adamr001 - 03 January 2013 01:24 PM

Re: GI mode… What GI mode in UE2 means is that it is the “bounce” calculation provided by IBL w/Direcitonal Shadows mode without the primary light cast by the IBL map (You end up with just the bounce, that’s why it says “Bounce Light (GI)”.  The Bounce Light mode should only be used when other lighting is the primary source of light in the scene. This will give you the color bouncing of objects without taking the full IBL mode render time hit (in theory anyway).

Thx Adam couldn’t do this myself as my computer went pop the other day but you explain things so much better than me anyway.

Szark - 04 January 2013 09:20 AM

adamr001 - 03 January 2013 01:24 PM

Re: GI mode… What GI mode in UE2 means is that it is the “bounce” calculation provided by IBL w/Direcitonal Shadows mode without the primary light cast by the IBL map (You end up with just the bounce, that’s why it says “Bounce Light (GI)”.  The Bounce Light mode should only be used when other lighting is the primary source of light in the scene. This will give you the color bouncing of objects without taking the full IBL mode render time hit (in theory anyway).

Thx Adam couldn’t do this myself as my computer went pop the other day but you explain things so much better than me anyway.

This is becoming my favourite thread…

Glad to hear it.  It has been one of my favorites as well.  Thanks for bringing it back to life with more questions and a few answers! :D