I'm posting a rendering defect I've found while testing VP 17. This is a VP 16 project about 1 minute long. I'm rendering on an 8700k with 32GB of RAM. I haven't changed any VP 17 settings and observe it is set for 'optimal - Intel Corporation....UHD 630' for GPU acceleration. As an observation, VP 16 takes 17:30 to render the clip with 70% CPU/40% GPU load while VP 17 renders in 11:00 with 25% CPU/85% GPU load. if you can fix this video bug this will be worth buying! The bug is random large-scale random pixelation and other artifacts. The video is 4k 60 fps, the sources include Gopro 7 HEVC, Gopro 4 h.264 and racerender h.264.

Update: This is an Intel GPU H/W accelerated LUT Filter problem

Initially reported as an HEVC Render bug, I've isolated the problem to the LUT filter. I've rendered the project in HEVC and h.264 successfully without LUT filter enabled. When I enable the LUT filter, the artifacts are back in both HEVC and h.264 although the defects dont occur nearly as often in h.264 rendering

Tests Run:

No Acceleration - pass (and has best CPU/GPU utilization and renders 30% faster than Intel GPU acceleration)

Nvidia GPU Acceleration - pass (I have a GTX 570 for 3D rendering)

Intel GPU Acceleration - Fails with previously observed artifacts - a conflict between HW Filter and HW encode/decode?

And another unusual problem: I am attempting to test disabling gpu acceleration. Once I've turned off acceleration, VP 17 closes when I attempt to open this VP15 project - doesn't give me the usual crash dialog either - just exits....... I had to create the project from scratch for VP17 to get this to work.

I will stop testing now and wait for an updated version