Semi transparent acrylic material

[Tharusha]

Hi,
Anyone knows how to create this material. Semi transparent, translucent acrylic material ?

[peerman]

Hi,

You can use the refraction glossiness (set it to 0.5 for example) or use the frosted glass from the library as a starting point.

Best,

Peter (peerman)

[Tharusha]

I tried it, but it casts sharp shadows. Is there anyway to overcome that ?Thanks anyways

[Roju]

To achieve soft shadow edge, increase light/sun size

[Tharusha]

Thank you very much. Isn't there any other way?
Cuz I have few other windows that gets direct sunlight from them

[Roju]

This is not the same as you described (translucent acrylic material) but I think it will give you more relevant result to your inspiration.
2sided material and sun size increased. https://docs.chaosgroup.com/display/...+%7C+Mtl2Sided

Left image with sun size 1. Right image with sun size 1.2

[andybot_cg]

You can try getting the diffuse lighting effect by enabling caustics in GI. I don't recall the specifics now, I had set up something like that in a previous version of V-Ray for SU. As peerman says, you need to have semi-glossy refraction set up in your material.

[Roju]

Here is a test render with Refraction Glossines 0.1

[andybot_cg]

Here is a test render with Refraction Glossines 0.1

You can see the problem Tharusha is trying to solve - in your example the sun casts sharp shadows on the wall. The shadows should be diffused by the translucent material.

[peerman]

I tried to turn off "affect shadows" which turned off the sunshadows. Maybe with an additional rectangle light to simulate the daylight coming in could help?

Best,