Node dirver bug in Material and Texture #39018

New Issue

Danyang Yi · 2014-03-07T08:20:04+01:00

Danyang Yi commented

2014-03-07 08:20:04 +01:00

System Information
win7 64 bit sp1
amd card hd7700

Blender Version
Broken: 2.69.0 r60995 and 2.70 hash:571f184
Worked: not sure

Short description of error
Node dirver bug in Material[BI and Cycles] and Texture. But working with Compositing node.
The screenshot would be helpful.

Exact steps for others to reproduce the error
Set the same value driver.
Node Compositing [right]
Node Material (BI Cycles) [bad result]
Node Texture [bad result]

The blend file:
node_driver_compositing[right]_material[bad]_texture[bad].blend

Thanks for you hard work!
Best wishes!

**System Information** win7 64 bit sp1 amd card hd7700 **Blender Version** Broken: 2.69.0 r60995 *and* 2.70 hash:571f184 Worked: not sure **Short description of error** Node dirver bug in Material[BI and Cycles] and Texture. But working with Compositing node. The screenshot would be helpful. ![node_driver_compositing[right]_material[bad]_texture[bad].jpg](https://archive.blender.org/developer/F80171/node_driver_compositing_right__material_bad__texture_bad_.jpg) **Exact steps for others to reproduce the error** Set the same value driver. Node Compositing [right] Node Material (BI Cycles) [bad result] Node Texture [bad result] The blend file: [node_driver_compositing[right]_material[bad]_texture[bad].blend](https://archive.blender.org/developer/F80174/node_driver_compositing_right__material_bad__texture_bad_.blend) Thanks for you hard work! Best wishes!

Danyang Yi commented

2014-03-07 08:20:04 +01:00

Changed status to: 'Open'

Lukas Tönne was assigned by Danyang Yi

2014-03-07 08:20:04 +01:00

Danyang Yi commented

2014-03-07 08:20:04 +01:00

Added subscriber: @yang2018

Joshua Leung commented

2014-03-08 00:07:09 +01:00

Added subscriber: @JoshuaLeung

Joshua Leung commented

2014-03-08 00:07:09 +01:00

What do you expect when you use fully typed-out paths in the expressions (i.e. things like "bpy.data.<...blah blah blah>.<property_name_at_last>")?!

There's no way for Blender to know that there are dependencies between properties when you do this
Be aware too that not all datablocks (notably textures and a few others) cannot be updated correctly due to dependency graph limitations. In those cases, drivers must live on the corresponding objects/materials or else they will not work correctly

What do you expect when you use fully typed-out paths in the expressions (i.e. things like "bpy.data.<...blah blah blah>.<property_name_at_last>")?! - There's no way for Blender to know that there are dependencies between properties when you do this - Be aware too that not all datablocks (notably textures and a few others) cannot be updated correctly due to dependency graph limitations. In those cases, drivers must live on the corresponding objects/materials or else they will not work correctly

Leon Cheung commented

2014-03-08 08:03:05 +01:00

Added subscriber: @ZhangYu

Lukas Tönne removed their assignment 2014-03-08 08:56:53 +01:00

Joshua Leung was assigned by Lukas Tönne

2014-03-08 08:56:53 +01:00

Lukas Tönne commented

2014-03-08 08:56:53 +01:00

Added subscriber: @LukasTonne

Lukas Tönne commented

2014-03-08 08:56:53 +01:00

Like aligorith said: Drivers in nodes are severely limited by the current depgraph. Another issue is that the graph editor relies a lot on context, which makes it difficult for some datablock drivers to be displayed correctly.

@JoshuaLeung: Not sure about the duplicate shader driver listing. Looks like this is caused by duplicate loop for materials here:
https://developer.blender.org/diffusion/B/browse/master/source/blender/editors/animation/anim_filter.c$1767

Assigned to you for deciding.

Like aligorith said: Drivers in nodes are severely limited by the current depgraph. Another issue is that the graph editor relies a lot on context, which makes it difficult for some datablock drivers to be displayed correctly. @JoshuaLeung: Not sure about the duplicate shader driver listing. Looks like this is caused by duplicate loop for materials here: https://developer.blender.org/diffusion/B/browse/master/source/blender/editors/animation/anim_filter.c$1767 Assigned to you for deciding.

blender-admin commented

2014-03-09 07:23:32 +01:00

This issue was referenced by blender/blender-addons-contrib@d219312d44

This issue was referenced by blender/blender-addons-contrib@d219312d44d7153dfe74eeef1dd0f8cbbc1340f3

blender-admin commented

2014-03-09 07:23:32 +01:00

This issue was referenced by d219312d44

This issue was referenced by d219312d44d7153dfe74eeef1dd0f8cbbc1340f3

Joshua Leung commented

2014-03-09 07:23:55 +01:00

Changed status from 'Open' to: 'Resolved'

Joshua Leung closed this issue

2014-03-09 07:23:55 +01:00

Joshua Leung commented

2014-03-09 07:23:55 +01:00

Closed by commit d219312d44.

Closed by commit d219312d44.

Danyang Yi commented

2014-03-09 08:24:07 +01:00

Hi! @JoshuaLeung @LukasTonne

I've been replaced "fully typed-out paths" into "sin(frame)" still don't working. especially in Texture node.
Hope we can remove this limited someday.

Thanks for you reply. Thanks for your great work!

Hi! @JoshuaLeung @LukasTonne I've been replaced "fully typed-out paths" into "sin(frame)" still don't working. especially in Texture node. Hope we can remove this limited someday. Thanks for you reply. Thanks for your great work!

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Node dirver bug in Material and Texture #39018