wrong/non precise visualization of vertex weights #71095

New Issue

Daniel Grauer · 2019-10-25T13:02:07+02:00

Daniel Grauer commented

2019-10-25 13:02:07 +02:00

System Information
Operating system: Windows-10-10.0.18362 64 Bits
Graphics card: GeForce GTX 1060 6GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 431.86

Blender Version
Broken: version: 2.80 (sub 75), branch: master, commit date: 2019-07-29 14:47, hash: f6cb5f5449
Worked: 2.79

Short description of error
we use vertex weights heavily in our simulations to define physical and other properties of objects and we need to be able to visually confirm that the weights we assign to the vertices are what they are supposed to be.
With the new visualization in 2.8 this is not possible anymore since there is always a falloff on the border vertices.

Exact steps for others to reproduce the error

assign a weight of 1.0 to a vertex
enable the weight visualization
now it looks like there are a lot more vertices involved in the weight assignment than actually are

here we see the weight of 1.0 on the center vertex of a plane (left 2.7, right 2.8)

**System Information** Operating system: Windows-10-10.0.18362 64 Bits Graphics card: GeForce GTX 1060 6GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 431.86 **Blender Version** Broken: version: 2.80 (sub 75), branch: master, commit date: 2019-07-29 14:47, hash: `f6cb5f5449` Worked: 2.79 **Short description of error** we use vertex weights heavily in our simulations to define physical and other properties of objects and we need to be able to visually confirm that the weights we assign to the vertices are what they are supposed to be. With the new visualization in 2.8 this is not possible anymore since there is always a falloff on the border vertices. **Exact steps for others to reproduce the error** 1. assign a weight of 1.0 to a vertex 2. enable the weight visualization 3. now it looks like there are a lot more vertices involved in the weight assignment than actually are here we see the weight of 1.0 on the center vertex of a plane (left 2.7, right 2.8) ![image.png](https://archive.blender.org/developer/F7856134/image.png)

Daniel Grauer commented

2019-10-25 13:02:08 +02:00

Added subscriber: @DanielGrauer

Philipp Oeser commented

2019-10-28 11:40:49 +01:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2019-10-28 11:40:49 +01:00

Changed status from 'Open' to: 'Archived'

Philipp Oeser closed this issue

2019-10-28 11:40:49 +01:00

Philipp Oeser self-assigned this 2019-10-28 11:40:49 +01:00

Philipp Oeser commented

2019-10-28 11:40:49 +01:00

This is just displayed differently in 2.8.
Have a look at 20f95de6ba to see the original implementation [so we have more gradients going on], so this change was made on purpose.

You can still have the 2.79 behavior using custom colors, see

Will close this as not-a-bug (feel free though to comment again if issues persist...)

This is just displayed differently in 2.8. Have a look at 20f95de6ba to see the original implementation [so we have more gradients going on], so this change was made on purpose. You can still have the 2.79 behavior using custom colors, see ![image.png](https://archive.blender.org/developer/F7864987/image.png) Will close this as not-a-bug (feel free though to comment again if issues persist...)

Daniel Grauer commented

2019-10-28 12:08:07 +01:00

Changing the gradient will be not a option since we have both scenarios of vertex weight assignments and switching back and forth between different gradients is not a solution.
How can this not be a bug if it breaks behaviour that was there for the last 10 years and just is not working as expected any longer?
At least considering a option to render the old way again would be highly appreciated, otherwise we will need to create a custom in house build just to get this back again.

Changing the gradient will be not a option since we have both scenarios of vertex weight assignments and switching back and forth between different gradients is not a solution. How can this not be a bug if it breaks behaviour that was there for the last 10 years and just is not working as expected any longer? At least considering a option to render the old way again would be highly appreciated, otherwise we will need to create a custom in house build just to get this back again.

Philipp Oeser commented

2019-10-28 12:34:12 +01:00

Added subscribers: @angavrilov, @Jeroen-Bakker

Philipp Oeser commented

2019-10-28 12:34:12 +01:00

Maybe @Jeroen-Bakker, @angavrilov might want to comment here?

Philipp Oeser removed their assignment 2019-10-28 12:34:37 +01:00

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wrong/non precise visualization of vertex weights #71095