Alpha channel of Tint Modifier don't Work with Fill material but work with stroke material. #101856

New Issue

hamza.SMA · 2022-10-16T14:18:58+02:00

hamza.SMA commented

2022-10-16 14:18:58 +02:00

System Information
Operating system: Windows-10-10.0.19043-SP0 64 Bits
Graphics card: NVIDIA GeForce GTX 1050/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 516.94

Blender Version
Broken: version: 3.3.1, branch: master, commit date: 2022-10-04 18:35, hash: b292cfe5a9
Worked: (newest version of Blender that worked as expected)

Short description of error
hi, it's been a while i didn't make a report for a bug, :) , well i'm back.
the Tint Modifier work well with Stroke material for every color channel R,G,B,A , but for Fill material we have problem with Alpha channel that don't work at all.
the first video show stroke works well with ALpha channel :
2022-10-16 13-12-36.mp4
the file
aplha color of tint modifier work well with stroke material.blend
secont video show the problem with FILL material and alpha channel:
2022-10-16 13-14-27.mp4
the file
aplha color of tint modifier don't work with fill material.blend
hope to get fixed.thank you for reading it

**System Information** Operating system: Windows-10-10.0.19043-SP0 64 Bits Graphics card: NVIDIA GeForce GTX 1050/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 516.94 **Blender Version** Broken: version: 3.3.1, branch: master, commit date: 2022-10-04 18:35, hash: `b292cfe5a9` Worked: (newest version of Blender that worked as expected) **Short description of error** hi, it's been a while i didn't make a report for a bug, :) , well i'm back. the Tint Modifier work well with `Stroke `material for every color channel R,G,B,A , but for Fill material we have problem with Alpha channel that don't work at all. the first video show stroke works well with ALpha channel : [2022-10-16 13-12-36.mp4](https://archive.blender.org/developer/F13691325/2022-10-16_13-12-36.mp4) the file [aplha color of tint modifier work well with stroke material.blend](https://archive.blender.org/developer/F13691364/aplha_color_of_tint_modifier_work_well_with_stroke_material.blend) secont video show the problem with FILL material and alpha channel: [2022-10-16 13-14-27.mp4](https://archive.blender.org/developer/F13691347/2022-10-16_13-14-27.mp4) the file [aplha color of tint modifier don't work with fill material.blend](https://archive.blender.org/developer/F13691368/aplha_color_of_tint_modifier_don_t_work_with_fill_material.blend) hope to get fixed.thank you for reading it

hamza.SMA commented

2022-10-16 14:18:58 +02:00

Added subscriber: @hamza-el-barmaki

Pratik Borhade commented

2022-10-17 02:17:38 +02:00

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

Pratik Borhade commented

2022-10-17 02:17:42 +02:00

Added subscriber: @PratikPB2123

Antonio Vazquez commented

2022-10-17 10:26:18 +02:00

Added subscriber: @antoniov

Antonio Vazquez commented

2022-10-17 10:26:18 +02:00

This is a known limitation of the Tint modifier. The tint is done using a mix between the original color and the tint color, and the factor to determine the final color is put in the alpha channel of the color because due internal limitations we must use the vertex color instead of the material. Basically, the RGBA is used as RGB + Mix factor (in A channel).

This could change in the future with EEvee Next, but now cannot be solved.

This is a known limitation of the Tint modifier. The tint is done using a mix between the original color and the tint color, and the factor to determine the final color is put in the alpha channel of the color because due internal limitations we must use the vertex color instead of the material. Basically, the `RGBA` is used as `RGB` + Mix factor (in `A` channel). This could change in the future with EEvee Next, but now cannot be solved.

hamza.SMA commented

2022-10-17 10:48:00 +02:00

hope so , i'm thinking to use converted math texts and hightlight part of text by tint and as we now text use fill material for inside .... to do so need other fills not get involved with other tints modifiers ..... really needed, maybe we ca have both effects or letting that when we have geometry nodes for Gpencil plays in it as we like..
thank you @antoniov

hope so , i'm thinking to use converted math texts and hightlight part of text by tint and as we now text use fill material for inside .... to do so need other fills not get involved with other tints modifiers ..... really needed, maybe we ca have both effects or letting that when we have geometry nodes for Gpencil plays in it as we like.. thank you @antoniov

Pratik Borhade changed title from ~~Aplha channel of Tint Modifier don't Work with Fill material but work with stroke material.~~ to Alpha channel of Tint Modifier don't Work with Fill material but work with stroke material.

2022-10-17 15:37:59 +02:00

Philipp Oeser removed the

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Alpha channel of Tint Modifier don't Work with Fill material but work with stroke material. #101856