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+--- Thread: [fixed] Material is invisible if environment is enabled (/showthread.php?tid=3119)
[fixed] Material is invisible if environment is enabled - markie - 06-14-2023
If the opacity of the material is lower than 0.86 it is not rendered in smooth shading with environment enabled, unless there is another object behind.
![[Image: opacity-bug-2.png]](https://i.postimg.cc/137LxFN5/opacity-bug-2.png)
Wings3D 2.2.9 x64.
Windows 10 x64.
RE: Material is invisible if environment is enabled - micheus - 06-17-2023
Yeah. That should be ok in the upcoming release. Dan is working on it.
RE: Material is invisible if environment is enabled - markie - 06-19-2023
Quote:Dan is working on it.That's good news.
Out of curiosity, I wanted to ask why exactly this number? (0.86/0.85)
![[Image: breaking-point.png]](https://i.postimg.cc/Th88SfDn/breaking-point.png)
RE: Material is invisible if environment is enabled - dgud - 06-20-2023
I render transparent faces in several passes, to get decent result without sorting (in view dir) every transparent face I partition transparent faces in two groups, almost transparent and almost opaque.
So I chose a value that I thought was ok: > 0.85 is opaque.
Simplified wings render:
almost transparent objects
almost opaque objects
opaque objects
Since wings is a modeler and not a render tool, we need to find a decent and fast approximation,
and rendering transparent objects without raytracing (or sorting) is hard.
The current solution is the best I have come up with so far, there will always be corner cases that
just don't work. If someone can come up something better it would be great.
RE: Material is invisible if environment is enabled - markie - 06-20-2023
Interesting. Thank You for the explanation.
