Rendering a Render Layer from another scene doesn't update/wrong size #37261

New Issue

Pablo Vazquez · 2013-10-30T12:18:40+01:00

Pablo Vazquez commented

2013-10-30 12:18:40 +01:00

%%%This is mainly about not updating, but also list another one related to scene % size.

Render doesn't update:

Open attached .blend
On node editor, click on the render button on the renderlayer
The render doesn't update while rendering (perhaps is too fast on some machines to notice), the little yellow corners on tiles don't appear either.

The other bug:
After render, the result is using the scene 25% percentage size from the original scene (scene_first), not the one it was rendered from (100%, scene_second). Perhaps this is a workflow decision, but it can get very annoying when dealing with multiple scenes, especially when linked from files other people are working on.

Happens on current trunk.

Linux Mint 15, NVIDIA GTX 580

Thanks!

%%%

%%%This is mainly about not updating, but also list another one related to scene % size. Render doesn't update: - Open attached .blend - On node editor, click on the render button on the renderlayer - The render doesn't update while rendering (perhaps is too fast on some machines to notice), the little yellow corners on tiles don't appear either. The other bug: After render, the result is using the scene 25% percentage size from the original scene (scene_first), not the one it was rendered from (100%, scene_second). Perhaps this is a workflow decision, but it can get very annoying when dealing with multiple scenes, especially when linked from files other people are working on. Happens on current trunk. Linux Mint 15, NVIDIA GTX 580 Thanks! %%%

Pablo Vazquez commented

2013-10-30 12:18:40 +01:00

Changed status to: 'Open'

Lukas Tönne commented

2013-10-30 16:28:40 +01:00

%%%Render Result not updating is because the scene pointer in SpaceImage->iuser is used to look up the render result buffer to display for the IMA_TYPE_R_RESULT image type. This pointer is set correctly for the render job, but the image space used for the display always takes this from context, i.e. will show the (empty) result from the active scene instead of the rendered scene.

I have attached a patch which explicitly sets the ImageUser->scene pointer in render jobs and fixes the problem. However, i'm not sure if this leaves undefined cases where a wrong scene pointer will be used in image editor, because i have to disable the automatic sima->iuser.scene update in image_main_area_draw for render result images (otherwise the pointer set by render jobs will just get overwritten on every draw).

As for the size discrepancy: This is a design problem with the way render settings are stored directly in scenes. Each scene has it's own settings and they can not be shared directly. But there is a nice addon by Bastien Montagne (mont29) which should help to work around the issue:
http://wiki.blender.org/index.php/Extensions:2.6/Py/Scripts/Render/Copy_Settings%%%

%%%Render Result not updating is because the scene pointer in SpaceImage->iuser is used to look up the render result buffer to display for the IMA_TYPE_R_RESULT image type. This pointer is set correctly for the render job, but the image space used for the display *always* takes this from context, i.e. will show the (empty) result from the active scene instead of the rendered scene. I have attached a patch which explicitly sets the ImageUser->scene pointer in render jobs and fixes the problem. However, i'm not sure if this leaves undefined cases where a wrong scene pointer will be used in image editor, because i have to disable the automatic sima->iuser.scene update in image_main_area_draw for render result images (otherwise the pointer set by render jobs will just get overwritten on every draw). As for the size discrepancy: This is a design problem with the way render settings are stored directly in scenes. Each scene has it's own settings and they can not be shared directly. But there is a nice addon by Bastien Montagne (mont29) which should help to work around the issue: http://wiki.blender.org/index.php/Extensions:2.6/Py/Scripts/Render/Copy_Settings%%%

Lukas Tönne commented

2013-10-31 18:21:51 +01:00

%%%Fixed in SVN now. The image editor will now always display the rendering scene during render jobs, to give the desired feedback.%%%

Lukas Tönne commented

2013-10-31 18:21:51 +01:00

Changed status from 'Open' to: 'Resolved'

Lukas Tönne closed this issue

2013-10-31 18:21:51 +01:00

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

Rendering a Render Layer from another scene doesn't update/wrong size #37261