Regression: Viewport cycles render: all lines disappear #86032

New Issue

Vyacheslav Kobozev · 2021-02-26T23:47:41+01:00

2021-02-26 23:47:41 +01:00

System Information
Operating system: Windows-8.1-6.3.9600-SP0 64 Bits
Graphics card: GeForce GTX 660 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 461.40

Blender Version
Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-02-25 05:34, hash: 0e1c6a29cb
2.93.0-4a784f32fe1e-windows64 already have this bug

Short description of error
When I enable Cycles render in viewport all line-objects disappear: empties, lights, curves, wireframes etc.
Tested with factory settings too.

2021-02-27_01-32-47.mp4

Also wireframes disappear only for cycles area, not for all viewport.
{F9858748 size=full}

Also Blender renders wireframe at first, but hide after rotation and it is no matter if I render with CPU or GPU
2021-03-02_05-51-35.mp4

**System Information** Operating system: Windows-8.1-6.3.9600-SP0 64 Bits Graphics card: GeForce GTX 660 Ti/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 461.40 **Blender Version** Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-02-25 05:34, hash: `0e1c6a29cb` 2.93.0-4a784f32fe1e-windows64 already have this bug **Short description of error** When I enable Cycles render in viewport all line-objects disappear: empties, lights, curves, wireframes etc. Tested with factory settings too. [2021-02-27_01-32-47.mp4](https://archive.blender.org/developer/F9843614/2021-02-27_01-32-47.mp4) Also wireframes disappear only for cycles area, not for all viewport. {[F9858748](https://archive.blender.org/developer/F9858748/изображение.png) size=full} Also Blender renders wireframe at first, but hide after rotation and it is no matter if I render with CPU or GPU [2021-03-02_05-51-35.mp4](https://archive.blender.org/developer/F9858758/2021-03-02_05-51-35.mp4)

Vyacheslav Kobozev commented

2021-02-26 23:47:41 +01:00

Added subscriber: @Vyach

Philipp Oeser commented

2021-03-01 14:13:12 +01:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2021-03-01 14:13:12 +01:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Philipp Oeser commented

2021-03-01 14:13:12 +01:00

Cannot reproduce here

**System Information**
Operating system: Linux-5.10.12-200.fc33.x86_64-x86_64-with-glibc2.32 64 Bits
Graphics card: GeForce GTX 970M/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 455.45.01
version: 2.93.0 Alpha, branch: master (modified), commit date: 2021-03-01 09:59, hash: `rBca63729a5b0e`

Just to make sure: could you check with the latest build from https://builder.blender.org/download/? (since you already checked Factory Settings it seems)
Not sure if you tweaked any other settings, posting your "failing" file could also help.

Cannot reproduce here ``` **System Information** Operating system: Linux-5.10.12-200.fc33.x86_64-x86_64-with-glibc2.32 64 Bits Graphics card: GeForce GTX 970M/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 455.45.01 version: 2.93.0 Alpha, branch: master (modified), commit date: 2021-03-01 09:59, hash: `rBca63729a5b0e` ``` Just to make sure: could you check with the latest build from https://builder.blender.org/download/? (since you already checked Factory Settings it seems) Not sure if you tweaked any other settings, posting your "failing" file could also help.

Vyacheslav Kobozev commented

2021-03-01 15:15:37 +01:00

@lichtwerk yes, the same with last version.
Bug does not depend on file, just factory startup and default file
2021-03-01_17-14-48.mp4

@lichtwerk yes, the same with last version. Bug does not depend on file, just factory startup and default file [2021-03-01_17-14-48.mp4](https://archive.blender.org/developer/F9856667/2021-03-01_17-14-48.mp4)

Philipp Oeser commented

2021-03-01 15:20:17 +01:00

Changed status from 'Needs User Info' to: 'Needs Triage'

Vyacheslav Kobozev commented

2021-03-01 17:33:55 +01:00

Not reproduced with:

Blender version: 2.93.0 Alpha, branch: master, commit date: 2021-03-01 01:00, hash: 1638af109e, type: Release
build date: 2021-03-01, 07:28:06
platform: Windows 10

'GeForce GTX 1050 Ti/PCIe/SSE2' 4ГБ
vendor: 'NVIDIA Corporation'
version: '4.5.0 NVIDIA 456.71'

So not OS/windows issue probably.

Not reproduced with: Blender version: 2.93.0 Alpha, branch: master, commit date: 2021-03-01 01:00, hash: 1638af109e46, type: Release build date: 2021-03-01, 07:28:06 platform: Windows 10 'GeForce GTX 1050 Ti/PCIe/SSE2' 4ГБ vendor: 'NVIDIA Corporation' version: '4.5.0 NVIDIA 456.71' So not OS/windows issue probably.

Germano Cavalcante commented

2021-03-03 21:21:18 +01:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2021-03-03 21:21:18 +01:00

Changed status from 'Needs Triage' to: 'Confirmed'

Germano Cavalcante commented

2021-03-03 21:21:18 +01:00

I can confirm the problem.
This change seems to resolve:

diff --git a/source/blender/draw/engines/external/external_engine.c b/source/blender/draw/engines/external/external_engine.c
index adb21540afb..1ede12a7876 100644
--- a/source/blender/draw/engines/external/external_engine.c
+++ b/source/blender/draw/engines/external/external_engine.c
@@ -281,6 +281,8 @@ static void external_draw_scene(void *vedata)
   }
 
   if (stl->g_data->update_depth && stl->g_data->need_depth) {
+    GPU_framebuffer_bind(dfbl->depth_only_fb);
+    GPU_framebuffer_clear_depth(dfbl->depth_only_fb, 1.0f);
     DRW_draw_pass(psl->depth_pass);
     /* Copy main depth buffer to cached framebuffer. */
     GPU_framebuffer_blit(dfbl->depth_only_fb, 0, fbl->depth_buffer_fb, 0, GPU_DEPTH_BIT);

I can confirm the problem. This change seems to resolve: ``` diff --git a/source/blender/draw/engines/external/external_engine.c b/source/blender/draw/engines/external/external_engine.c index adb21540afb..1ede12a7876 100644 --- a/source/blender/draw/engines/external/external_engine.c +++ b/source/blender/draw/engines/external/external_engine.c @@ -281,6 +281,8 @@ static void external_draw_scene(void *vedata) } if (stl->g_data->update_depth && stl->g_data->need_depth) { + GPU_framebuffer_bind(dfbl->depth_only_fb); + GPU_framebuffer_clear_depth(dfbl->depth_only_fb, 1.0f); DRW_draw_pass(psl->depth_pass); /* Copy main depth buffer to cached framebuffer. */ GPU_framebuffer_blit(dfbl->depth_only_fb, 0, fbl->depth_buffer_fb, 0, GPU_DEPTH_BIT); ```

Vyacheslav Kobozev commented

2021-11-28 14:08:18 +01:00

Changed status from 'Confirmed' to: 'Resolved'

Vyacheslav Kobozev closed this issue

2021-11-28 14:08:18 +01:00

Vyacheslav Kobozev commented

2021-11-28 14:08:46 +01:00

No issue in 2.93.5, so I marked as resolved.

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Regression: Viewport cycles render: all lines disappear #86032