Rendered reflection channel completely ignore transparent surfaces like glass.
All reflective transparent materials are not included in reflection channel
Hi @Smolak
The glass material has a separate ‘‘Transparent’’ channel, which will not appear in any of the other channels.
This is how Transparent channel looks :
Where do yo have reflections for that channel ?
It looks like this channel works like material ID and not produce reflections.
Reflections for glasses are most important in post production. D5 completely ignore them.
Hi @Smolak
This is a known limitation with D5; the reflection channel captures specular and glossy bounce information.
- Certain reflective elements (e.g., brush-painted vegetation, cloud shadows, or emissive light reflections in mirrors) may not appear correctly in reflections due to engine-level constraints
If these vegetations are non-individually-placed library plants (e.g., brush or path objects) in glass reflections:
| Position relative to camera | Grass (preview/output) | Trees (preview/output) |
|---|---|---|
| Behind camera | 50 m | 150 m |
| In front but outside view frustum | 150 m (preview); 900 m (output) | Same as grass |
Right, but I not speaking about vegetation reflections but simple elements like window glass, balcony glass. These elements are not included in D5 reflection channel because they are transparent.
It looks like all transparent materials are excluded in reflection channel. Very, very bad.
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Could you please clarify your expectations for the reflection channel in comparison to the transparent channel? We would appreciate any additional insights or details you can provide, including reference images illustrating how you envision its appearance.
This is how reflection channel looks in all other render engines on the world :
As you see reflections are included on glass - windows, balconies. I don’t understand why D5 remove reflections from transparent materials.
That’s too strange for me that nobody report this before because glass reflections are crucial for post-processing, photoshop montage etc.
Hi @Smolak
Thanks for your feedback. I’ve also shared this further with our team. The Reflection channel will be improved in the next subsequent release, although we can’t guarantee it to be available in the next version, possibly after 3.1.
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