In the Rhino WIP , we’ve added transparency color and refraction support in the Rendered display mode. What Is This Feature? This feature makes transparent objects properly show their color in Rendered mode. Transparent objects now also bend light for a more realistic effect. [image] Why Transpar…

Hi @DavidEranen This is great! Thanks for making it happen :flexed_biceps: -Jakob

Update: Refraction is now also supported on Mac! -David

Just tested the latest WIP and stumbled upon this little gem when I did a check to see if finally colored glass was colored, and now it is so much more!!! Refraction was a real treat!. Here is a super simple test just to see the effect. [image] One thing I noticed is that it doesn’t support thic…

I see some odd behavior with any transparency setting in Rendered. Might deserve a separate (bug report) thread, but since it could be related to this topic I’ll share it here. Feel free to move it. Steps to reproduce: fresh start of Rhino9 WIP, new file, create some solids, assign a newly creat…

[image] FrankS: Solids turn magenta, the higher the transparency value, the stronger the magenta saturation. Object are not displayed transparent This is a known issue on MacOS, logged as RH-87750 Glass Renders Pink.

Thanks Nathan! Let me add that this is seemingly true for any transparency across all material types (Glass, Plastic, Custom …)

There is no problem when using OpenGL, but it does not work properly when using Direct3D.

Hi Jean - [image] Jean-Go: […] but it does not work properly when using Direct3D. What doesn’t work properly? Can you post a simple 3dm file? -wim

I think he is referring to both color and refraction on transparent materials like glass and gem (++) This is what D3D looks like here: latest build (9.0.25231.12305, 2025-08-19) [image] And openGL looks like this: [image] And raytraced for color comparison: [image] D3D ring.3dm (2.8 MB)

Rhino WIP Feature: Transparency Color and Refraction

Serengeti (Rhino WIP)

brian (Brian Gillespie) June 25, 2025, 4:27pm 8

RH-87852 is fixed in Rhino WIP

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Rhino WIP Feature: Transparency Color and Refraction

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