I get strange flickering when rendering video. is there any advice?
Hello ,
From what it looks like, that video was rendered using Path Tracer, right? If so, then that would be noise created by the Path Tracer render, which is fairly common. When creating interior videos with Path Tracer, increasing the number of Samples Per Pixel usually leads to less noise, although this increases render times propotionally.
If things still look too noisy, then you may want to use a denoiser in an external video editing software to clean up the video. We know this is far from ideal, and we are working on improving Twinmotion's native denoiser to decrease the need of going to external tools for post-production.
Best,
Raghib
I suggest you render out your (path traced) video as images series and then use a video editing or compositing software to make the images into a video. Even good old window movie maker could be just fine in compositing the video.
Cheers.
Kassim
check out this tutorial i came across on youtube: https://www.youtube.com/watch?v=oIeQAVzHydA
basically you import your video into a video editing software of your choice and do the small trick shown in the video above. i imagine you could also try adding a denoiser effect in a software like premiere or davinci.
Thanks for the replies. I have tried Topaz AI denoiser with two different AI models but to no good result. The youtube video showing the delaying of the video by a frame just made it blurry. I'll try to re-render with more samples. I just used the slide bar to the max (256 at that time, but now it goes way beyond since I updated). I'll report back if I get something good
I ran into the same issue when exporting a video using path tracer with the denoiser activated. The settings that worked for me were to disable the denoiser and increase the samples per pixel to 600. I also made small adjustments to other settings , hoping to minimize the increased renderings time such as lowering the firefly brightness to 0, reduced aliasing to 1, activated tiled rendering, turned off emissivity, and made output size Full HD. The rendering times still increased dramatically compared to being able to use the denoiser and render at a lower number of samples but the results were pretty good. Can't wait for the much anticipated denoiser fix! Twinmotion Video - Linked In
I am running into the same issues with TM 2022.2.3.
I render videos in HD 720p, use path tracing and set samples to 512, denoiser on, antialias 3. But this shows flickering in the videos, although render time is already quite huge with such settings.
Solution with external noise removal software is not free, so this is not acceptable that TM does not do the job correctly.
Some people say you need to work with denoiser OFF, but that does not work as then your images have a lot of noise in them !