Rendering inaccurately with LAB Adjust, Linear Wipe + GPU acceleration

TTTT wrote on 11/29/2017, 2:05 PM

Last year I edit some (4K) video using Vegas Pro 13 and my project makes use of "LAB Adjust plug-in" (Lightness: 1,347 , the rest at zero as default) on a track.

Then one of my sequences uses a "Linear Wipe" transition. (Angle 180, Feather: 0,5 ). The other sequence it's transitioning with is on lower tracks.

(The red sequence has the Linear Wipe and is transitioning with the blue track.)

At rendering (or previewing as well), if GPU acceleration is off, the video render as expected. But with GPU acceleration on, the transition's feather zone lo like a big blog of green interference crossing the screen. My GPU is NVidia GTX980.

I had actually observed this in the past, but as Vegas kept crashing on GPU acceleration (at least with my graphic card) before version 15, I didn't investigate this yet.

Has anybody some idea how I could benefit from GPU acceleration AND accurate rendering ? (Thank you)

Comments

TTTT wrote on 12/2/2017, 9:03 AM

Hello, no one has a clue?

matthias-krutz wrote on 12/2/2017, 9:24 AM

I would try to render the transition area without GPU acceleration in a new track. Then the whole project should render cleanly with GPU acceleration..