Texture Paint: alpha not used in gradient #69747

New Issue

Maks · 2019-09-11T13:43:36+02:00

Maks commented

2019-09-11 13:43:36 +02:00

Blender : 2.81, 4ce3fbd52a
You can set the transparency in the color gradient, but alpha will not be used in drawing.

Blender : 2.81, 4ce3fbd52ae8 You can set the transparency in the color gradient, but alpha will not be used in drawing. ![image.png](https://archive.blender.org/developer/F7743857/image.png) [#69747.blend](https://archive.blender.org/developer/F7744636/T69747.blend)

Maks commented

2019-09-11 13:43:36 +02:00

Added subscriber: @MaxBudjak

Philipp Oeser commented

2019-09-13 10:06:22 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2019-09-13 10:06:22 +02:00

Not 100% sure this should be supported, but looks like a bug to me.

Maks commented

2019-09-13 13:58:34 +02:00

In #69747#775174, @lichtwerk wrote:
Not 100% sure this should be supported, but looks like a bug to me.

Yes. It also worked in earlier versions, but It could always be better.
I also suggest adding Random mode to the Gradient Mapping.
Random color with jitter creates a useful effect.
For example, you can create scratches of different intensities with a single brush stroke and many other things.

> In #69747#775174, @lichtwerk wrote: > Not 100% sure this should be supported, but looks like a bug to me. Yes. It also worked in earlier versions, but It could always be better. I also suggest adding Random mode to the Gradient Mapping. Random color with jitter creates a useful effect. For example, you can create scratches of different intensities with a single brush stroke and many other things.

Philipp Oeser commented

2019-09-13 14:15:43 +02:00

Yes. It also worked in earlier versions, but It could always be better.

Not sure about his actually. I dont see this happening in 2.79 either.
Could you tell us in which version/buildhash this was working?

I also suggest adding Random mode to the Gradient Mapping.
Random color with jitter creates a useful effect.
For example, you can create scratches of different intensities with a single brush stroke and many other things.

This is outside the scope of this bugtracker, please use other channels for feedback and requests:
https://wiki.blender.org/wiki/Communication/Contact#User_Feedback_and_Requests

> Yes. It also worked in earlier versions, but It could always be better. Not sure about his actually. I dont see this happening in 2.79 either. Could you tell us in which version/buildhash this was working? > I also suggest adding Random mode to the Gradient Mapping. > Random color with jitter creates a useful effect. > For example, you can create scratches of different intensities with a single brush stroke and many other things. This is outside the scope of this bugtracker, please use other channels for feedback and requests: https://wiki.blender.org/wiki/Communication/Contact#User_Feedback_and_Requests

Maks commented

2019-09-13 15:02:08 +02:00

Could you tell us in which version/buildhash this was working?

Thank. I meant that this is not a bug. Transparency was also not used in earlier versions.

> Could you tell us in which version/buildhash this was working? Thank. I meant that this is not a bug. Transparency was also not used in earlier versions.

Philipp Oeser commented

2019-09-13 15:41:20 +02:00

Added subscriber: @PabloDobarro

Philipp Oeser commented

2019-09-13 15:41:20 +02:00

So maybe this is even expected behavior then?
Also not sure if the alpha should modify the strength under the hood or how it would work best.
Maybe @PabloDobarro would know more? (@PabloDobarro: feel free to close this or put on TODO...)

So maybe this is even expected behavior then? Also not sure if the alpha should modify the strength under the hood or how it would work best. Maybe @PabloDobarro would know more? (@PabloDobarro: feel free to close this or put on TODO...)

Pablo Dobarro commented

2019-09-13 17:10:35 +02:00

D5789 fixes the issue in 2D paint. I still need to check how to solve this in 3D projection painting or if it is ok to have different behaviors in the two painting modes.

[D5789](https://archive.blender.org/developer/D5789) fixes the issue in 2D paint. I still need to check how to solve this in 3D projection painting or if it is ok to have different behaviors in the two painting modes.

Pablo Dobarro commented

2020-01-08 15:58:10 +01:00

Changed status from 'Confirmed' to: 'Archived'

Pablo Dobarro closed this issue

2020-01-08 15:58:10 +01:00

Pablo Dobarro self-assigned this 2020-01-08 15:58:10 +01:00

Pablo Dobarro commented

2020-01-08 15:58:10 +01:00

This looks like it was explicitly coded to not support alpha, so I understand that it is working as expected.

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Texture Paint: alpha not used in gradient #69747