Render difference between grouped and non-grouped node tree #76476

New Issue

Michael Otto · 2020-05-06T16:17:31+02:00

Michael Otto commented

2020-05-06 16:17:31 +02:00

System Information
Operating system: Win
Graphics card:GTX1080

Blender Version
Broken: 2.82a Release

Short description of error
Node layout looks different some nodes are grouped.
My uneducated guess is that the group input conversion from vec3 to float might cause this difference (?)

Exact steps for others to reproduce the error
Compare cubes on attached blendfile
NodeGroup.blend

**System Information** Operating system: Win Graphics card:GTX1080 **Blender Version** Broken: 2.82a Release **Short description of error** Node layout looks different some nodes are grouped. My uneducated guess is that the group input conversion from vec3 to float might cause this difference (?) **Exact steps for others to reproduce the error** Compare cubes on attached blendfile [NodeGroup.blend](https://archive.blender.org/developer/F8516176/NodeGroup.blend)

Michael Otto commented

2020-05-06 16:17:31 +02:00

Added subscriber: @MichaelOtto

Germano Cavalcante commented

2020-05-07 15:20:22 +02:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2020-05-07 15:20:22 +02:00

Changed status from 'Needs Triage' to: 'Confirmed'

Germano Cavalcante commented

2020-05-07 15:20:22 +02:00

I can confirm.
The problem is seen only in Eevee.

I can confirm. The problem is seen only in Eevee.

Clément Foucault commented

2020-05-14 17:25:13 +02:00

Added subscribers: @brecht, @fclem

Clément Foucault commented

2020-05-14 17:25:13 +02:00

Eevee does the vec3 > Color > float conversion correctly so I think there is something wrong on the cycles part.

We had some requests that group sockets should do proper conversion and not be mere reroute. (i.e: mainly for float socket)

For your information, Vec3 > Float conversion is different from Color > Float conversion.

@brecht any thought on this?

Eevee does the vec3 > Color > float conversion correctly so I think there is something wrong on the cycles part. We had some requests that group sockets should do proper conversion and not be mere reroute. (i.e: mainly for float socket) For your information, Vec3 > Float conversion is different from Color > Float conversion. @brecht any thought on this?

Brecht Van Lommel commented

2020-05-14 18:59:57 +02:00

Group sockets should indeed not just reroute, but actually convert. And I think that's what they usually do?

For this file, I don't see where there is a vec3 > Color > float conversion. The Group Input sockets types match the Mix node socket types. So it's just vec3 > color and vec3 > float as far as I can tell.

Group sockets should indeed not just reroute, but actually convert. And I think that's what they usually do? For this file, I don't see where there is a vec3 > Color > float conversion. The Group Input sockets types match the Mix node socket types. So it's just vec3 > color and vec3 > float as far as I can tell.

Clément Foucault self-assigned this 2020-05-14 19:18:16 +02:00

Clément Foucault commented

2020-05-14 19:18:16 +02:00

You are right! So this is something I should fix!

blender-admin commented

2020-05-14 19:56:14 +02:00

This issue was referenced by 6716baa1f7

This issue was referenced by 6716baa1f7b9674e133b1c946a25c80fa682a239

Clément Foucault commented

2020-05-14 20:08:45 +02:00

Changed status from 'Confirmed' to: 'Resolved'

Clément Foucault closed this issue

2020-05-14 20:08:45 +02:00

Sign in to join this conversation.

No Label

Download

What's New

Blender Studio

Manual

Developers Blog

Documentation

Benchmark

Blender Conference

Development Fund

One-time Donations

Render difference between grouped and non-grouped node tree #76476