It's impossible to know what your issue is without seeing an example. Here are some instructions on how to post animation: Animation Forum - How To Post Your Work
Hi guys I first time rendering animation, so looks like im have a lack of experience in this case. I rendering 64 frames, 512x512 png with default scanline rendering, glueing all frames together in Photoshop to final 2048x2048 image. In Unreal Engine 4 everything works well, but my smoke have really noticeable noise. How…