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Hi Alexander,

I think transparency at 50% is more or less not transparent, it is translucent, that means, you can see a spot on the surface but not on the floor behind it, a window for example is transparent, you can really light through (transparency 90% to 100%) and it doesn't cas shadows, but a projection-screen for example has a transparency of lets say 50% you can light from behind, and the spot is visible on that screen, but not on the floor in front of it, so it actually casts shadow. you are right, that in reality even a window casts a little bit of light (actually it reflects) but for the visualisation it doesn't really matter.

All the best Marco

Hi Marco.
The 50% was merely an example and there is more to the problem. ;-)
Here another example. If I want to create a stained glas window and therfor make a blue (or whatever color is needed) material with 80% transparancy I want (and need) a blue "shadow". This shadow can be a crusal part of my design.

Hi Alexander,

of course you are right, this is something which bothers me a lot, but I always find a workaround to live with, my special-weapon for "custom-problems" is a gobo-rotator and a custom Gobo I created a small scene for you to download so you can see how it's done, just download it and tell me if this works for you as well. I'm not saying, that it would be nice to have this build in Capture, but I'm sure the team will work something out for the future, until then be creative ;-)

https://www.dropbox.com/s...lDtHHWbL3Ly3RTa?dl=0

All the best Marco

Nice, Marco.
Really nice!

I also I like how it looks when changing the Transparency and Frost of the Window_stained _glass material to 0%.

Cheers!