Vertex Colour Layers + Node-Based-Material + Subsurf Modifier + BI Renderer = Trouble #45733

New Issue

Lawrence D'Oliveiro · 2015-08-08T09:29:02+02:00

2015-08-08 09:29:02 +02:00

The enclosed file nodes-skin-plus-subsurf-BI-crash.blend has a material called “Skin” defined using nodes, with its colour varied using two different vertex-colour layers, rendered with the BI renderer. The mesh also has a subsurf modifier on it. Beginning with commit c61e4f2, the vertex colours no longer have an effect on the rendered material, unless the subsurf modifier is turned off. Beginning with commit 2ec00e, attempting to render will cause Blender to crash, unless the subsurf modifier is turned off.

Let me know if you need more info.

The enclosed file [nodes-skin-plus-subsurf-BI-crash.blend](https://archive.blender.org/developer/F221637/nodes-skin-plus-subsurf-BI-crash.blend) has a material called “Skin” defined using nodes, with its colour varied using two different vertex-colour layers, rendered with the BI renderer. The mesh also has a subsurf modifier on it. Beginning with commit c61e4f2, the vertex colours no longer have an effect on the rendered material, unless the subsurf modifier is turned off. Beginning with commit 2ec00e, attempting to render will cause Blender to crash, unless the subsurf modifier is turned off. Let me know if you need more info.

Lawrence D'Oliveiro commented

2015-08-08 09:29:02 +02:00

Changed status to: 'Open'

Lawrence D'Oliveiro commented

2015-08-08 09:29:02 +02:00

Added subscriber: @ldo

Bastien Montagne commented

2015-08-08 11:06:27 +02:00

Added subscribers: @Psy-Fi, @mont29

Chace Campbell was assigned by Bastien Montagne

2015-08-08 11:06:27 +02:00

Bastien Montagne commented

2015-08-08 11:06:27 +02:00

Can confirm the crash with current master (@Psy-Fi may be interested too).

Chace Campbell was unassigned by Julian Eisel

2015-08-08 11:30:24 +02:00

Campbell Barton was assigned by Julian Eisel

2015-08-08 11:30:24 +02:00

Julian Eisel commented

2015-08-08 11:30:24 +02:00

Added subscribers: @blenderfreak666, @JulianEisel

Julian Eisel commented

2015-08-08 11:30:42 +02:00

Removed subscriber: @blenderfreak666

Bastien Montagne commented

2015-09-08 19:31:56 +02:00

Changed status from 'Open' to: 'Resolved'

Bastien Montagne closed this issue

2015-09-08 19:31:56 +02:00

Bastien Montagne commented

2015-09-08 19:31:56 +02:00

Cannot reproduce anymore with current master, so assuming this has been fixed already - we can always reopen otherwise…

Lawrence D'Oliveiro commented

2015-09-08 23:54:44 +02:00

Changed status from 'Resolved' to: 'Open'

Lawrence D'Oliveiro reopened this issue

2015-09-08 23:54:44 +02:00

Lawrence D'Oliveiro commented

2015-09-08 23:54:44 +02:00

It may not be crashing any more (thanks for fixing that), but it is still not quite right.

Here is a render of the sample .blend file with the older version of Blender, and here is a render with the current version. Note the blush on the cheeks: the latter is not correctly using both the vertex paint layers in the node-based skin material.

It may not be crashing any more (thanks for fixing that), but it is still not quite right. Here ![nodes-skin-plus-subsurf-BI-render-old.png](https://archive.blender.org/developer/F231560/nodes-skin-plus-subsurf-BI-render-old.png) is a render of the sample `.blend` file with the older version of Blender, and here ![nodes-skin-plus-subsurf-BI-render-new.png](https://archive.blender.org/developer/F231563/nodes-skin-plus-subsurf-BI-render-new.png) is a render with the current version. Note the blush on the cheeks: the latter is not correctly using both the vertex paint layers in the node-based skin material.

Campbell Barton commented

2015-09-09 06:41:44 +02:00

Changed status from 'Open' to: 'Archived'

Campbell Barton closed this issue

2015-09-09 06:41:44 +02:00

Campbell Barton commented

2015-09-09 06:41:44 +02:00

Both vertex color layers are still being used, if you paint more extreme colors on each, they are visible.

This report is showing a subtle change caused by #45737, which is a fix for vertex colors using the wrong color space.\

Edit, this file did expose a crash when previewing the material.
Fixed.

Both vertex color layers are still being used, if you paint more extreme colors on each, they are visible. This report is showing a subtle change caused by #45737, which is a fix for vertex colors using the wrong color space.\ ---- Edit, this file did expose a crash when previewing the material. Fixed.

blender-admin commented

2015-09-09 08:48:21 +02:00

This issue was referenced by 1e7a8ab5e8

This issue was referenced by 1e7a8ab5e8ee0d54f83b20f77a16fd167db9da27

Campbell Barton commented

2015-09-09 08:55:51 +02:00

Changed status from 'Archived' to: 'Resolved'

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Vertex Colour Layers + Node-Based-Material + Subsurf Modifier + BI Renderer = Trouble #45733