Major issue that hasn't been noticed. Shadow capture, reflection capture, glossy indirect render pass. #120689

New Issue

Jithin-Raj · 2024-04-16T10:30:19+02:00

Jithin-Raj commented

2024-04-16 10:30:19 +02:00

System Information
Operating system: Windows-10-10.0.22631-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3060 Laptop GPU/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 546.65

Blender Version
Broken: version: 4.0.1, branch: blender-v4.0-release, commit date: 2023-11-16 16:40, hash: d0dd92834a08
Worked: (newest version of Blender that worked as expected)

Short description of error
when we use the shadow capture, we cannot directly get the reflection of the object along with the shadow, what we can do is enable the glossy indirect pass and connect the Glossy indirect pass to the output in the compositing tab. in that way we can get the reflection. but this process is not working in blender 3.2 to 4.1. it is only working in 3.0 and the previous versions.

Exact steps for others to reproduce the error

Open attached test 3_0.blend file on Blender 3.0 or 3.1.2
Render Image (Note in the compositor that the Glossy indirect pass is working)
Compare the result seem in any newer version

**System Information** Operating system: Windows-10-10.0.22631-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3060 Laptop GPU/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 546.65 **Blender Version** Broken: version: 4.0.1, branch: blender-v4.0-release, commit date: 2023-11-16 16:40, hash: `d0dd92834a08` Worked: (newest version of Blender that worked as expected) **Short description of error** when we use the shadow capture, we cannot directly get the reflection of the object along with the shadow, what we can do is enable the glossy indirect pass and connect the Glossy indirect pass to the output in the compositing tab. in that way we can get the reflection. but this process is not working in blender 3.2 to 4.1. it is only working in 3.0 and the previous versions. ![](attachments/2726039e-0803-43a9-ab48-4fda4b5a1148) **Exact steps for others to reproduce the error** - Open attached `test 3_0.blend` file on Blender 3.0 or 3.1.2 - Render Image (Note in the compositor that the `Glossy indirect` pass is working) - Compare the result seem in any newer version

test 7.blend

11 MiB

GIF.gif

176 KiB

test 3_0.blend

804 KiB

Jithin-Raj added the

labels 2024-04-16 10:30:20 +02:00

Iliya Katushenock commented

2024-04-16 11:13:12 +02:00

Thanks for report, can you check 4.2 version of blender?

Philipp Oeser commented

2024-04-16 12:42:51 +02:00

This is what I see when I render the file in 3.3.0 (I had to go through 3.6 to save the file there once to be able to open it in 3.3)

This looks the same as in 4.1, what could I be missing?

Also, please update your first comment to include the description which is present in the file (this just makes the process quicker for someone looking at this report)

This is what I see when I render the file in 3.3.0 (I had to go through 3.6 to save the file there once to be able to open it in 3.3) ![image](/attachments/252779e8-874f-4e41-88f1-3a62861a5818) This looks the same as in 4.1, what could I be missing? Also, please update your first comment to include the description which is present in the file (this just makes the process quicker for someone looking at this report)

image.png

1.4 MiB

Philipp Oeser added

Status

Needs Information from User

and removed

Status

Needs Triage

labels 2024-04-16 12:43:04 +02:00

Jithin-Raj commented

2024-04-16 14:04:27 +02:00

The first render u see is rendered in blender 4.1. u can see the reflection on the shadow capture is not accurate. u can only black colored reflection. but when I tried it on blender 3.0, the reflection is accurate.

when we use the shadow capture, we cannot directly get the reflection of the object along with the shadow, what we can do is enable the glossy indirect pass and connect the output in the compositing tab. in that way we can get the reflection. but this process is not working in blender 3.1 to 4.1. it is only working in 3.0 and the previous versions.

The first render u see is rendered in blender 4.1. u can see the reflection on the shadow capture is not accurate. u can only black colored reflection. but when I tried it on blender 3.0, the reflection is accurate. when we use the shadow capture, we cannot directly get the reflection of the object along with the shadow, what we can do is enable the glossy indirect pass and connect the output in the compositing tab. in that way we can get the reflection. but this process is not working in blender 3.1 to 4.1. it is only working in 3.0 and the previous versions.

4. 1 render.png

2.1 MiB

Jithin-Raj commented

2024-04-16 14:05:44 +02:00

This render rendered in blender. 3.0. and the reflection is accurate.

from 3.0.png

1.4 MiB

Jithin-Raj commented

2024-04-16 14:23:46 +02:00

Thanks for report, can you check 4.2 version of blender?

yes, I have tried. I'm facing the same issue in 4.2 version.

> Thanks for report, can you check 4.2 version of blender? yes, I have tried. I'm facing the same issue in 4.2 version.

Philipp Oeser commented

2024-04-16 14:25:47 +02:00

Still not seeing that in 3.0, maybe someone else can

Philipp Oeser added

Status

Needs Triage

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Needs Information from User

labels 2024-04-16 14:26:00 +02:00

Germano Cavalcante commented

2024-04-16 22:41:11 +02:00

I can confirm that in Blender 3.0 and 3.1.2, the Glossy Indirect Render Pass worked on an object used as Shadow Catcher. But even so, this doesn't seem like something expected. It's even strange how a Shadow Catcher object behaves with reflections.

So I can't say if this is actually a bug.

@brecht, could you provide any insights on this issue?

I can confirm that in Blender 3.0 and 3.1.2, the `Glossy Indirect` Render Pass worked on an object used as `Shadow Catcher`. But even so, this doesn't seem like something expected. It's even strange how a `Shadow Catcher` object behaves with reflections. So I can't say if this is actually a bug. @brecht, could you provide any insights on this issue?

Germano Cavalcante added

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Needs Info from Developers

and removed

labels 2024-04-16 22:41:39 +02:00

Jithin-Raj commented

2024-04-17 07:57:58 +02:00

I have tried all the methods to get to get the reflection on the shadow capture. No use. I think it is not the problem from the compositor.

stay in the cycles viewport render view and change the render pass to glossy indirect under the viewport shading. u can see there is no reflections on the plane. I think the problem starts from there. please check the screenshot that I have provided.
it could be a bug, because this issue started from the update of blender 3.2. blender 3.0 and below works fine..

I have tried all the methods to get to get the reflection on the shadow capture. No use. I think it is not the problem from the compositor. stay in the cycles viewport render view and change the render pass to glossy indirect under the viewport shading. u can see there is no reflections on the plane. I think the problem starts from there. please check the screenshot that I have provided. it could be a bug, because this issue started from the update of blender 3.2. blender 3.0 and below works fine..

Screenshot 2024-04-17 084416.png

1.1 MiB

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Major issue that hasn't been noticed. Shadow capture, reflection capture, glossy indirect render pass. #120689