Texture faces display white in 3D view, when used as a Particle Object #35810

New Issue

Wayne Campbell · 2013-06-20T19:16:27+02:00

Wayne Campbell commented

2013-06-20 19:16:27 +02:00

%%%Windows 7, Nvidia GTX580
Blender Version 2.67b

This is a minor display problem in the 3D view. A textured plane appears properly textured in the 3D view. But if the plane is used as a particle object its textures disappear in the 3D view and it is displayed pure white. This occurs only after saving and reloading the file.

I've attached screenshots and a sample Blend file. Set the particle object to 'none', reload the file, and the textures reappear.

Wayne%%%

%%%Windows 7, Nvidia GTX580 Blender Version 2.67b This is a minor display problem in the 3D view. A textured plane appears properly textured in the 3D view. But if the plane is used as a particle object its textures disappear in the 3D view and it is displayed pure white. This occurs only after saving and reloading the file. I've attached screenshots and a sample Blend file. Set the particle object to 'none', reload the file, and the textures reappear. Wayne%%%

Wayne Campbell commented

2013-06-20 19:16:27 +02:00

Changed status to: 'Open'

mik arieta commented

2013-08-28 21:45:01 +02:00

%%%I had the same problem (both BI and cycles), is happening to the emitter object but also to the "dupli object" you use for particles (or hairs).%%%

Dalai Felinto commented

2013-10-01 00:37:38 +02:00

%%%This happens also when the object is used duplicated with 'dupliverts'. I attached a similar sample file (BugDemo2.blend).
To see the bug alternate between 'None' and 'Verts' and save, reopen the file.%%%

%%%This happens also when the object is used duplicated with 'dupliverts'. I attached a similar sample file (BugDemo2.blend). To see the bug alternate between 'None' and 'Verts' and save, reopen the file.%%%

Sergey Sharybin commented

2014-02-04 12:42:26 +01:00

Added subscriber: @Sergey

Sergey Sharybin commented

2014-02-04 12:42:26 +01:00

I couldn't reproduce the issue using 2.69 release and current development builds. Do you mind checking with recent blender version and updating instructions ifneeded?

Wayne Campbell commented

2014-02-04 15:35:16 +01:00

I am still seeing the problem at 2.69 r60995 ( the current release build I think ).

If a textured mesh is used as a particle object, its textures won't appear in the 3D view after the file has been saved and reloaded.

The attached file, BugDemo.Blend, has a textured mesh 'Plane' ( face textures applied using a UV map ) . Such texturing would normally appear in the 3D view. However as soon as I assign Plane as a particle object on the larger EmissionPlane mesh, then save and reload the file, the texturing on 'Plane' disappears. This 'invisible texturing' occurs fairly universally for me, whenever a textured mesh is used as a particle object. And oddly, the issue doesn't occur until the file is saved and reloaded.

To demonstrate the problem:

Open the attached file you will see that the object Plane appears not textured ( but it is. )
Select object EmissionPlane and change its ParticleSettings.render_type to None
Save the blend file and reload it.
Now Plane appears properly textured.

To reverse the problem:

change EmissionPlane's ParticleSettings.render_type back to Object
The Plane still appears properly textured.
Save and reload the file.
Now texturing has disappeared from Plane.

It might be just me - my PC setup etc ( Windows 7, Nvidia GTX580 ). Anyway its a minor enough problem, affecting appearance in the 3D view only.

Thanks for looking at it.

Wayne

I am still seeing the problem at 2.69 r60995 ( the current release build I think ). If a textured mesh is used as a particle object, its textures won't appear in the 3D view after the file has been saved and reloaded. The attached file, BugDemo.Blend, has a textured mesh 'Plane' ( face textures applied using a UV map ) . Such texturing would normally appear in the 3D view. However as soon as I assign Plane as a particle object on the larger EmissionPlane mesh, then save and reload the file, the texturing on 'Plane' disappears. This 'invisible texturing' occurs fairly universally for me, whenever a textured mesh is used as a particle object. And oddly, the issue doesn't occur until the file is saved and reloaded. To demonstrate the problem: 1. Open the attached file you will see that the object Plane appears not textured ( but it is. ) 2. Select object EmissionPlane and change its ParticleSettings.render_type to None 3. Save the blend file and reload it. 4. Now Plane appears properly textured. To reverse the problem: 5. change EmissionPlane's ParticleSettings.render_type back to Object 6. The Plane still appears properly textured. 7. Save and reload the file. 8. Now texturing has disappeared from Plane. It might be just me - my PC setup etc ( Windows 7, Nvidia GTX580 ). Anyway its a minor enough problem, affecting appearance in the 3D view only. Thanks for looking at it. Wayne

Sergey Sharybin self-assigned this 2014-02-04 19:33:29 +01:00

Sergey Sharybin commented

2014-02-04 19:33:29 +01:00

Really weird. Could totally see the issue on linux now, but everything worked fine when i've been testing the file in my windows box. Hrrrm...

Will look into it.

Really weird. Could totally see the issue on linux now, but everything worked fine when i've been testing the file in my windows box. Hrrrm... Will look into it.

Sergey Sharybin commented

2014-02-05 09:18:40 +01:00

Develoepr note:
Doublechecked on windows and textures indeed seems correct. Do have some suspecions about textures not working in GL display lists. Will look further.

Develoepr note: Doublechecked on windows and textures indeed seems correct. Do have some suspecions about textures not working in GL display lists. Will look further.

Sergey Sharybin commented

2014-02-05 10:38:31 +01:00

Added subscriber: @brecht

Sergey Sharybin commented

2014-02-05 10:38:31 +01:00

Here's the patch which solves the issue: http://www.pasteall.org/49303/diff

However not sure why exactly this doesn't work. As in is it expected that OGL will texture objects nicely when calling displists?

@brecht, can you please have a look as well?

Here's the patch which solves the issue: http://www.pasteall.org/49303/diff However not sure why exactly this doesn't work. As in is it expected that OGL will texture objects nicely when calling displists? @brecht, can you please have a look as well?

Brecht Van Lommel commented

2014-02-05 12:41:02 +01:00

My best guess that this is a bug in the graphics driver or some invalid OpenGL state that we are using, but it's not clear which one. In principle textures should work with display lists, but I wouldn't be surprised if the particular way we used them has issues.

I'd consider this a workaround but I think it's reasonable until we do bigger OpenGL drawing changes, display lists are deprecated in new OpenGL versions anyway.

My best guess that this is a bug in the graphics driver or some invalid OpenGL state that we are using, but it's not clear which one. In principle textures should work with display lists, but I wouldn't be surprised if the particular way we used them has issues. I'd consider this a workaround but I think it's reasonable until we do bigger OpenGL drawing changes, display lists are deprecated in new OpenGL versions anyway.

blender-admin commented

2014-02-05 18:46:01 +01:00

This issue was referenced by blender/blender-addons-contrib@6a4f2fd552

This issue was referenced by blender/blender-addons-contrib@6a4f2fd552f48db76d19f94b3d4262712b7f3e7b

blender-admin commented

2014-02-05 18:46:01 +01:00

This issue was referenced by 6a4f2fd552

This issue was referenced by 6a4f2fd552f48db76d19f94b3d4262712b7f3e7b

Sergey Sharybin commented

2014-02-05 18:47:15 +01:00

Changed status from 'Open' to: 'Resolved'

Sergey Sharybin closed this issue

2014-02-05 18:47:15 +01:00

Sergey Sharybin commented

2014-02-05 18:47:15 +01:00

Closed by commit 6a4f2fd552.

Closed by commit 6a4f2fd552.

Wayne Campbell commented

2014-02-06 15:49:52 +01:00

I can confirm the fix. I downloaded this morning's daily build:

blender-2.69-39ad2cd-win64.zip 76M Thu Feb 6 02:28:43 2014

and found the problem to be resolved.

Thanks!

I can confirm the fix. I downloaded this morning's daily build: blender-2.69-39ad2cd-win64.zip 76M Thu Feb 6 02:28:43 2014 and found the problem to be resolved. Thanks!

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Texture faces display white in 3D view, when used as a Particle Object #35810