Sequencer OpenGL Render : Annotations not rendered with python command but is rendered using UI button #65763

New Issue

Félix · 2019-06-12T19:27:06+02:00

Félix commented

2019-06-12 19:27:06 +02:00

System Information
Operating system: Windows-10-10.0.16299 64 Bits
Graphics card: GeForce GTX 970/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 390.65

Blender Version
Broken: version: 2.80 (sub 74), branch: blender2.7, commit date: 2019-06-11 23:43, hash: 6529d20d79
Worked: (optional)

Short description of error
Sequencer OpenGL render using python command doesn't export Annotations but clicking on the View -> Sequence Render Animation does export Annotations.

Exact steps for others to reproduce the error

Open linked .blend file: BugRenderOpenGLPython.blend
Run the script: Annotations are not rendered.
Sequencer Preview: Click on View -> Sequence Render Animation, Annotations are rendered.

**System Information** Operating system: Windows-10-10.0.16299 64 Bits Graphics card: GeForce GTX 970/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 390.65 **Blender Version** Broken: version: 2.80 (sub 74), branch: blender2.7, commit date: 2019-06-11 23:43, hash: `6529d20d79` Worked: (optional) **Short description of error** Sequencer OpenGL render using python command doesn't export Annotations but clicking on the *View -> Sequence Render Animation* does export Annotations. **Exact steps for others to reproduce the error** - Open linked .blend file: [BugRenderOpenGLPython.blend](https://archive.blender.org/developer/F7100522/BugRenderOpenGLPython.blend) - Run the script: Annotations are not rendered. - Sequencer Preview: Click on *View -> Sequence Render Animation*, Annotations are rendered.

Félix commented

2019-06-12 19:27:06 +02:00

Added subscriber: @Miadim

Jeroen Bakker commented

2019-06-13 16:51:10 +02:00

Added subscriber: @Jeroen-Bakker

Jeroen Bakker commented

2019-06-13 16:51:10 +02:00

When clicking on View -> Sequence Render Animation the area has a setting if the annotations needs to be exported

The python API does not have a setting to render annotations and cannot get to the context of the sequencer. You might have zero or multiple sequencer areas open. By default it does not export annotations as it is not expected to do so.

When clicking on `View -> Sequence Render Animation` the area has a setting if the annotations needs to be exported ![image.png](https://archive.blender.org/developer/F7101774/image.png) The python API does not have a setting to render annotations and cannot get to the context of the sequencer. You might have zero or multiple sequencer areas open. By default it does not export annotations as it is not expected to do so.

Félix commented

2019-06-13 17:07:49 +02:00

Thank you for answering.
I'm not sure to get what you're talking about. This worked for me few days ago... And it still works on an older code on Blender 2.77. I changed things in the current code, but I can't figure out what I might have done wrong on what you're saying.
I've tested le context I'm currently in before calling this operator, and it's a 'SEQUENCE_EDITOR'.

Thank you for answering. I'm not sure to get what you're talking about. This worked for me few days ago... And it still works on an older code on Blender 2.77. I changed things in the current code, but I can't figure out what I might have done wrong on what you're saying. I've tested le context I'm currently in before calling this operator, and it's a 'SEQUENCE_EDITOR'.

Jeroen Bakker commented

2019-06-13 18:28:14 +02:00

Hi @Miadim

Hmmm... I will perform a bisect tomorrow to find out when the different behavior started. I did several fixes in this area. There might be some conflict going on.
Please note that the 2.77 Grease Pencil/Annotation system has been spliced in 2.80 into a Grease Pencil, what will always be rendered and an annotation system. Not sure the real thoughts are behind the annotations in conjunction with the opengl rendering.
Ah, then the script in the .blend file might not be complete as it perform in a different context. So you have an operation that executes the opengl render in the sequencer context, and there you expect the annotations to be present.

Hi @Miadim Hmmm... I will perform a bisect tomorrow to find out when the different behavior started. I did several fixes in this area. There might be some conflict going on. Please note that the 2.77 Grease Pencil/Annotation system has been spliced in 2.80 into a Grease Pencil, what will always be rendered and an annotation system. Not sure the real thoughts are behind the annotations in conjunction with the opengl rendering. Ah, then the script in the `.blend` file might not be complete as it perform in a different context. So you have an operation that executes the opengl render in the sequencer context, and there you expect the annotations to be present.

Jeroen Bakker self-assigned this 2019-06-13 18:28:31 +02:00

Jeroen Bakker commented

2019-06-14 08:52:25 +02:00

I tried versions upto 1 month ago and was not able to find a version of blender 2.80 that exported the annotations as you describe it would with your given example file. In Blender 2.79 when running the same script as provided in your blend file, it also does not export the grease pencil layers.

When the next script is called from a sequence editor area it uses the settings of the area and the annotations are exported in 2.79 but not in 2.80. Is this what you are referring to?

import bpy


class SimpleOperator(bpy.types.Operator):
    """Tooltip"""
    bl_idname = "object.simple_operator"
    bl_label = "Simple Export Operator"

    @classmethod
    def poll(cls, context):
        return context.area.type == 'SEQUENCE_EDITOR'

    def execute(self, context):
        bpy.ops.render.opengl(animation=True, sequencer=True)
        return {'FINISHED'}


def register():
    bpy.utils.register_class(SimpleOperator)


def unregister():
    bpy.utils.unregister_class(SimpleOperator)


if __name__ == "__main__":
    register()

Note: when rendering stills it is working. When rendering animations the first frame is correct, but the second frame is shifted by half width and height. So the third frame will move the annotation outside the export canvas.

I tried versions upto 1 month ago and was not able to find a version of blender 2.80 that exported the annotations as you describe it would with your given example file. In Blender 2.79 when running the same script as provided in your blend file, it also does not export the grease pencil layers. When the next script is called from a sequence editor area it uses the settings of the area and the annotations are exported in 2.79 but not in 2.80. Is this what you are referring to? ``` import bpy class SimpleOperator(bpy.types.Operator): """Tooltip""" bl_idname = "object.simple_operator" bl_label = "Simple Export Operator" @classmethod def poll(cls, context): return context.area.type == 'SEQUENCE_EDITOR' def execute(self, context): bpy.ops.render.opengl(animation=True, sequencer=True) return {'FINISHED'} def register(): bpy.utils.register_class(SimpleOperator) def unregister(): bpy.utils.unregister_class(SimpleOperator) if __name__ == "__main__": register() ``` Note: when rendering stills it is working. When rendering animations the first frame is correct, but the second frame is shifted by half width and height. So the third frame will move the annotation outside the export canvas.

blender-admin commented

2019-06-14 10:49:05 +02:00

This issue was referenced by 31a99a3ab4

This issue was referenced by 31a99a3ab45a72476df781288f1c81763df57c62

Jeroen Bakker commented

2019-06-14 10:52:53 +02:00

Changed status from 'Open' to: 'Resolved'

Jeroen Bakker closed this issue

2019-06-14 10:52:53 +02:00

Félix commented

2019-06-14 10:58:55 +02:00

Hi, I was trying to build an older version of blender to find how I managed to make it work few days ago, but it seems you handled it. Is it working now ?

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Sequencer OpenGL Render : Annotations not rendered with python command but is rendered using UI button #65763