Viewport: Retopology Overlay #70267

New Issue

Jeroen Bakker · 2019-09-26T11:17:05+02:00

Jeroen Bakker commented

2019-09-26 11:17:05 +02:00

Created this subtask for testing several drawing techniques in order to create the Retopology overlay. Based on several implementation we can chose the best technique.

Biggest issues are that the wires should be visible on top of other meshes, but still be occluded by them.
The most common technique is to shift the depth buffer, but that will still introduce rendering atifacts.

The options we know so far we want to prototype are

Backface depth test buffer
Frontface depth test buffer
Average of Back and front face buffer

note: Above options still artifacts when looking on edges of meshes, but those are actually edge cases that might not be that disturbing but we need to test.

Please keep comments related to this topic.

This is with backfacing depth test. Results are ok when retopology mesh is finished

but when having a non-manifold mesh it will still render artifacts.

Using a stencil buffer to remove render artifacts introduces sharp edges

As non-manifolds is part of the process we should find ways how to remove these render artifacts.

Created this subtask for testing several drawing techniques in order to create the Retopology overlay. Based on several implementation we can chose the best technique. Biggest issues are that the wires should be visible on top of other meshes, but still be occluded by them. The most common technique is to shift the depth buffer, but that will still introduce rendering atifacts. The options we know so far we want to prototype are * Backface depth test buffer * Frontface depth test buffer * Average of Back and front face buffer note: Above options still artifacts when looking on edges of meshes, but those are actually edge cases that might not be that disturbing but we need to test. Please keep comments related to this topic. This is with backfacing depth test. Results are ok when retopology mesh is finished ![image.png](https://archive.blender.org/developer/F7776656/image.png) but when having a non-manifold mesh it will still render artifacts. ![image.png](https://archive.blender.org/developer/F7776670/image.png) Using a stencil buffer to remove render artifacts introduces sharp edges ![image.png](https://archive.blender.org/developer/F7776962/image.png) As non-manifolds is part of the process we should find ways how to remove these render artifacts.

❤️ 1

Jeroen Bakker self-assigned this 2019-09-26 11:17:05 +02:00

Jeroen Bakker commented

2019-09-26 11:17:05 +02:00

Added subscriber: @Jeroen-Bakker

Erick Tukuniata commented

2019-09-26 11:27:00 +02:00

Added subscriber: @ErickNyanduKabongo

Pablo Dobarro commented

2019-09-26 16:32:39 +02:00

Added subscriber: @PabloDobarro

Benjamin Sauder commented

2019-09-27 07:51:43 +02:00

Added subscriber: @kioku

TheRedWaxPolice commented

2019-09-27 15:09:16 +02:00

Added subscriber: @TheRedWaxPolice

Paul Kotelevets commented

2019-09-29 20:08:00 +02:00

Added subscriber: @1D_Inc

Paul Kotelevets commented

2019-09-29 20:08:00 +02:00

We're hiding parts of meshes, so we're able to get rid of depth tests on hardware, providing the power to display complex models during retopology.

100% quad manifold surface, made by manual retopology:

We're hiding parts of meshes, so we're able to get rid of depth tests on hardware, providing the power to display complex models during retopology. 100% quad manifold surface, made by manual retopology: ![BUST.jpg](https://archive.blender.org/developer/F7779938/BUST.jpg)

reza sanjaya commented

2019-09-30 02:30:17 +02:00

Added subscriber: @ReguzaEi

Jeroen Bakker commented

2019-10-01 08:46:56 +02:00

@1D_Inc Sorry, I don't get what you want to tell.

Paul Kotelevets commented

2019-10-01 09:39:00 +02:00

In #70267#786822, @Jeroen-Bakker wrote:
@1D_Inc Sorry, I don't get what you want to tell.

Keep it up, you are making great job, keeping patch at low performance loss level.

> In #70267#786822, @Jeroen-Bakker wrote: > @1D_Inc Sorry, I don't get what you want to tell. Keep it up, you are making great job, keeping patch at low performance loss level.

Tamer Karataş commented

2019-10-23 07:12:49 +02:00

Added subscriber: @karatastamer

Characterhero commented

2019-11-03 12:30:05 +01:00

Added subscriber: @TheCharacterhero-4

item412 commented

2019-11-06 16:50:42 +01:00

Added subscriber: @item412

gwobbler commented

2019-11-07 07:49:39 +01:00

Added subscriber: @Gwobbler

Jun Mizutani commented

2019-11-18 18:03:00 +01:00

Added subscriber: @jmztn

Alexander Dumproff commented

2019-11-21 20:13:19 +01:00

Added subscriber: @A.Lex_3D

Julien Leménicier commented

2019-11-25 17:52:18 +01:00

Added subscriber: @lemenicier_julien

Jeroen Bakker changed title from ~~Prototype Retopology Overlay Drawing Techniques~~ to Retopology Overlay Drawing Techniques

2019-11-27 08:11:47 +01:00

Jeroen Bakker changed title from ~~Retopology Overlay Drawing Techniques~~ to Viewport: Retopology Overlay

2020-01-22 09:25:26 +01:00

Matthias Pieroth commented

2020-02-16 18:11:22 +01:00

Added subscriber: @Jayanam

Daniel commented

2020-02-19 18:16:50 +01:00

Added subscriber: @thromshall

Jonathan Lampel commented

2020-03-17 16:30:51 +01:00

Added subscriber: @JonathanLampel-4

xan2622 commented

2020-04-30 22:41:54 +02:00

Added subscriber: @xan2622

Danilo Recevic commented

2020-06-05 21:52:51 +02:00

Added subscriber: @danilor

Danilo Recevic commented

2020-06-05 21:52:51 +02:00

I struggled with this for a long time, and finally found a workaround... not sure if this is of any help, but I can hide now undesired back faces in edit mode when doing the retopo. I just create instanced copy, set to in front, and turn back faces culling on. That way the hi-poly mesh is hiding my editing mesh, and in front instance is showing the vertices that are in front

Kenzie commented

2020-07-18 20:52:28 +02:00

Added subscriber: @KenzieMac130

Roman commented

2020-10-06 11:44:26 +02:00

Added subscriber: @rwman

Max Derksen commented

2020-11-20 16:28:44 +01:00

Added subscriber: @derksen

Max Derksen commented

2020-11-20 16:28:44 +01:00

Hey, did you completely forget about this feature?

Norman Higuera commented

2020-11-21 19:38:06 +01:00

Added subscriber: @Norman.Higuera

Alan Redd commented

2020-12-05 21:25:02 +01:00

Added subscriber: @AlRedd-3

Alan Redd commented

2020-12-05 21:25:02 +01:00

Hi there! Any news on this? What needs to be done for it to be committed?

Danilo Recevic commented

2020-12-06 12:13:25 +01:00

In #70267#1069045, @AlRedd-3 wrote:
Hi there! Any news on this? What needs to be done for it to be committed?

https://gumroad.com/l/draw_xray This addon is working well. Only thing is that you can still select points on the other side

> In #70267#1069045, @AlRedd-3 wrote: > Hi there! Any news on this? What needs to be done for it to be committed? https://gumroad.com/l/draw_xray This addon is working well. Only thing is that you can still select points on the other side

Vadik commented

2021-02-18 08:33:37 +01:00

Added subscriber: @sid350

Jeroen Bakker removed their assignment 2021-04-12 15:39:14 +02:00

jo commented

2022-01-03 00:38:10 +01:00

Added subscriber: @sleepyhead