Blending modes in VSE transition issues #94625
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Reference: blender/blender#94625
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System Information
Operating system: macOS-10.14.6-x86_64-i386-64bit 64 Bits
Graphics card: Intel Iris Pro OpenGL Engine Intel Inc. 4.1 INTEL-12.10.30
Blender Version
Broken: version: 3.1.0 Alpha, branch: master, commit date: 2021-12-27 21:23, hash:
8c4edd1b37
Worked: (newest version of Blender that worked as expected)
Short description of error
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Exact steps for others to reproduce the error
[Please describe the exact steps needed to reproduce the issue]
[Based on the default startup or an attached .blend file (as simple as possible)]
Added subscriber: @Tora-Victoria
Hi there.
There is an issue with the Blend Modes in Blender’s VSE between Channels.
The issue appears when attempting to blend opacity transition between Channels. In short I have a clip or an image on Channel 1 and place another clip/image on Channel 2 and want to blend them together. I am using Cross blending mode for the Channel 1 as a base and choose, for example, Exclusion for Channel 2 and fade the Exclusion out by keyframing the Opacity of the Exclusion Channel. The transition does not work for the Exclusion, as is also the case in many other blending modes. In previous versions of Blender the Alpha Over did not work but has been fixed now, but there are several other blend modes that do not respond to the opacity transition. I come from Premiere and these transitions work there so I am sure this is a bug that can be fixed or perhaps it is just how Blender handles the blend modes and that might be changed. I love Blender and have been using it for a long as a 3D app, but want to see if I can use Blender as my main VSE as well and am therefore making this report to see if it could help make Blender even better - keep up the good work :-)
I have gone through all the blend modes and listed them below to show which work and which are not working.
The setup is as follows:
MacBook Pro, Intel, Mojave 10.14.6
Blender 3.1.0 Alpha
Images PNG with Alpha
Channel 1 - Blend Mode Cross Opacity = 1
Channel 2 - Testing blend modes, keyframing Opacity from 1 - 0.
First Category:
Vivid Light - Not Working
Hard Light - Not Working
Soft Light - Not Working
Overlay - Not Working
Second Category:
Add - Working
Color Dodge - Not Working
Screen - Not Working
Lighten - Not Working
Third Category:
Linear Burn - Not Working
Color Burn - Not Working
Multiply - Working
Darken - Not Working
Fourth Category:
Cross - Working
Replace - Working
Fifth Category:
Over Drop - Working
Frame Cross - Working
Alpha Over - Working
Alpha Under - ?
Sixth Category:
Value - Not Working
Color - Not Working
Saturation - Not Working
Hue - Not Working
Seventh Category:
Subtract - Working
Exclusion - Not Working
Difference - Not Working
Eight Category:
Pin Light - Not Working
Linear Light - Not Working
Added subscriber: @iss
Changed status from 'Needs Triage' to: 'Needs User Info'
Please check with latest alpha build from https://builder.blender.org/download/daily/
This issue was resolved 2021-12-29, your build is from 2021-12-27
I just dowloaded today to be sure
Version 3.1.0 (3.1.0 2021-12-28)
This is the latest version on Blender.org
I see now, buildbot is stuck on broken test so builds are not updated. I don't think I can fix this issue now. Can you check tomorrow? Responsible developer was notified, so this may be fixed in meantime.
Added subscriber: @PratikPB2123
Hi @Tora-Victoria , any news? Have you tried recent 3.1.0 build?: https://builder.blender.org/download/daily/
Hi @PratikPB2123
I tried the recebt build and everything works fine - good job :-)
Changed status from 'Needs User Info' to: 'Resolved'
Thanks @tora. Will close this report :)