BI Viewport Render Preview Update Issue #42973

New Issue

Leon Cheung · 2014-12-20T13:59:33+01:00

Leon Cheung commented

2014-12-20 13:59:33 +01:00

System Information
Win 8.1 64bit | GTX 680

Blender Version
Broken: 2.73 test build d7e4944

Short description of error
When switching between Object materaial and Date material, viewport render preview failed to update.

Exact steps for others to reproduce the error
Please see attached test file, and this screencast video .

render_upd.blend

Thank you.

**System Information** Win 8.1 64bit | GTX 680 **Blender Version** Broken: 2.73 test build d7e4944 **Short description of error** When switching between Object materaial and Date material, viewport render preview failed to update. **Exact steps for others to reproduce the error** Please see attached test file, and this [screencast video ](http://youtu.be/9QfG6gncWt8). [render_upd.blend](https://archive.blender.org/developer/F132981/render_upd.blend) Thank you.

Leon Cheung commented

2014-12-20 13:59:33 +01:00

Changed status to: 'Open'

Leon Cheung commented

2014-12-20 13:59:33 +01:00

Added subscriber: @ZhangYu

Bastien Montagne commented

2014-12-20 14:48:23 +01:00

Added subscribers: @Sergey, @mont29

Bastien Montagne commented

2014-12-20 14:48:23 +01:00

Sergey, need your 'update' skills here again... Adding DAG_id_tag_update((ID *)ob, OB_RECALC_OB); to the end of outliner's eOLDrawState tree_element_active_material does the trick (this is done anyway by RNA update handling of MatSlots), but meh... Why do we have to tag the object for update in such case?

Sergey, need your 'update' skills here again... Adding `DAG_id_tag_update((ID *)ob, OB_RECALC_OB);` to the end of outliner's `eOLDrawState tree_element_active_material` does the trick (this is done anyway by RNA update handling of MatSlots), but meh... Why do we have to tag the object for update in such case?

Sergey Sharybin commented

2014-12-20 17:07:29 +01:00

From quick glance changing the material link (actually, everything with rna_MaterialSlot_update) tags object for OB_RECALC_OB. This goes back to #24135.

Not really sure there's easier way to inform render engine about changes atm, we could just do the same in outliner with some comment about this.

From quick glance changing the material link (actually, everything with rna_MaterialSlot_update) tags object for OB_RECALC_OB. This goes back to #24135. Not really sure there's easier way to inform render engine about changes atm, we could just do the same in outliner with some comment about this.

Leon Cheung commented

2014-12-20 17:43:20 +01:00

Since it's not critical, maybe we can set priority to "Low" or todo?