CUDA / OpenCL acceleration breaks custom transitions

[dr04e606]

Hello everyone! 

I'm trying to apply a custom transition which utilizes Transform, Mirror, Offset, Brightness & Contrast effects and some masking. All the aforementioned effects are GPU accelerated, which is nice, but the thing is that once I enable Mercury Playback Engine GPU Accelerated (both CUDA and OpenCL) this transition starts acting up. It's worth mentioning that I was able to reproduce this behavior on two different computers with different GPU vendors (Intel and Nvidia). 

Here's how it looks with Mercury Playback Engine Software Only: https://youtu.be/5cUu60DosmQ

And here's how it looks with Mercury Playback Engine GPU Accelerated: https://youtu.be/_GV-cR-Cqxc

Here's the project-file that I used as an example: https://drive.google.com/file/d/1rJSraxeXWsMV6VOZB6eTyFyP7hHa7mMf/view

Can someone recommend any workarounds other than switching to Software Only mode, 'cause that one is quite slow? I tried to apply these transitions onto the clips instead of adjustment layers, and I also tried nesting the clips, but that didn't help...

[R Neil Haugen]

And which GPU are you using, and which driver is it using?

[dr04e606]

I have a rather dated GTX 1050 Ti in my desktop machine with NVIDIA Studio Driver 516.59.

I have a fairly recent (2021) Intel UHD Graphics with 32 EUs in my laptop. Not sure about the driver version on that one, as it's not with me right now... 

Can you reproduce my issue with GPU acceleration on your side? 

[R Neil Haugen]

@RjL190365 is the person that knows the hard data on these.

[dr04e606]

@RjL190365 is the person that knows the hard data on these.

It would be great if they could share their opinion on this matter. 

I'd also greatly appreciate it if someone could try opening my example project on their systems and see how it works with and without GPU Acceleration (in File>Project Settings>General>Renderer). 

The whole ZIP-file is only 15MB in size and contains of only two still images from Adobe Stock and a Premiere Pro project file.

It's completely clean and safe to open: VirusTotal Analysis 

[Warren Heaton]

@dr04e606 

I'm chiming in to say that I am able to reproduce the issue under Windows and macOS.  Unless the Renderer is set to Software only, it tweaks.