Viewport lag when using Mouse Deth option #113296

New Issue

Adrian Rutkowski · 2023-10-05T17:34:25+02:00

Adrian Rutkowski commented

2023-10-05 17:34:25 +02:00

System Information
Operating system: win11
Graphics card: RTX 2070 super

Blender Version
Broken: 4.0.0, 4d35344010, blender-v4.0-release, 2023-10-01
Worked: 3.6

Short description of error

noticeable viewport jumps when using the mouse depth option (use_mouse_depth_navigate)

Exact steps for others to reproduce the error

select the depth option and rotate the screen as in the gif

**System Information** Operating system: win11 Graphics card: RTX 2070 super **Blender Version** Broken: 4.0.0, 4d3534401060, blender-v4.0-release, 2023-10-01 Worked: 3.6 **Short description of error** noticeable viewport jumps when using the mouse depth option (use_mouse_depth_navigate) ![blender_QPrpisiCcn.gif](attachments/267ca9d6-d5dc-4e5c-a9d1-a6ea14a3ccf1) **Exact steps for others to reproduce the error** select the depth option and rotate the screen as in the gif

blender_QPrpisiCcn.gif

33 MiB

Adrian Rutkowski added the

labels 2023-10-05 17:34:26 +02:00

Pratik Borhade commented

2023-10-06 04:49:23 +02:00

Hi, thanks for the report. Unable to confirm locally in 4.0-beta
Could it be due to workbench rewrite? Does this happen in other shading modes? (material preview/render)

Also try factory settings: File > Defaults > Load Factory Settings

Hi, thanks for the report. Unable to confirm locally in 4.0-beta Could it be due to workbench rewrite? Does this happen in other shading modes? (material preview/render) Also try factory settings: `File > Defaults > Load Factory Settings`

Pratik Borhade added

Status

Needs Information from User

and removed

Status

Needs Triage

labels 2023-10-06 04:49:34 +02:00

Adrian Rutkowski commented

2023-10-06 08:29:18 +02:00

looks like lag is there only on a wireframe or in solid shading not happening in the material preview and only if the Depth option is on.

It is subtle, happening only when the middle mouse is pressed and released really fast. Though noticeable enough to be annoying. It may be easier to notice it when zooming to obj with depth on and off by holding ctrl and releasing the MMB as fast as possible.

looks like lag is there only on a wireframe or in solid shading not happening in the material preview and only if the Depth option is on. It is subtle, happening only when the middle mouse is pressed and released really fast. Though noticeable enough to be annoying. It may be easier to notice it when zooming to obj with depth on and off by holding ctrl and releasing the MMB as fast as possible.

Pratik Borhade added

Status

Needs Triage

and removed

Status

Needs Information from User

labels 2023-10-06 12:26:18 +02:00

Germano Cavalcante commented

2023-10-06 15:54:48 +02:00

The Depth buffer has to be redrawn in these cases, which can be a bit slow for some GPUs.

As far as I know, nothing changed in 3.6 to 4.0 that justifies this slowness.

Can you double check to confirm that the problem is really not seen in 3.6?

The Depth buffer has to be redrawn in these cases, which can be a bit slow for some GPUs. As far as I know, nothing changed in 3.6 to 4.0 that justifies this slowness. Can you double check to confirm that the problem is really not seen in 3.6?

Germano Cavalcante commented

2023-10-06 16:08:09 +02:00

(...) looks like lag is there only on a wireframe or in solid shading

This indicates that the problem is in the refactoring of the engines.

@pragma37, as AutoDepth calls the DRW_draw_depth_loop(...) that initializes some separate engines, do you think this could somehow remove some texture cache used in Workbench (and Overlay) and slow things down?

> (...) looks like lag is there only on a wireframe or in solid shading This indicates that the problem is in the refactoring of the engines. @pragma37, as AutoDepth calls the `DRW_draw_depth_loop(...)` that initializes some separate engines, do you think this could somehow remove some texture cache used in Workbench (and Overlay) and slow things down?

👀 1

Adrian Rutkowski commented

2023-10-06 16:09:54 +02:00

It is not there for an older version. 3.6 feels super smooth in comparison with 4.0