Preview settings do not affect the render time.

I am talking about rendering settings. It just shows under preview how many frames it has done.

"If" you are changing the size or other source properties in the render, or there are ANY pan / crop / FX / generated media, compositing on the timeline, that means the bottleneck is in the upstream filters, not where you are looking.

If any of those is present, contingent on system and other mediating factors, one fps render may not be that bad.

Post complete project,render, source and output MediaInfo properties if you need more help.

and maybe pc specs?

Try rendering to a different drive.

Also, something in this post might help, although it's more aimed at hung renders than slow ones.

Also, a very low bitrate requires more compression, and a low resolution requires resizing, so those don't necessarily mean a faster render.

Also. One more question. I have rendered a video (it took me almost a day) and I spotted a small mistake in the final rewatch before uploading. Would it be possible to fix it and render it quicker? I mean.. A whole video is rendered already (I still have the project file), it's just couple of seconds that needs to be fixed.

Depends on the format you rendered. Which "Output Format" template/settings did you use?

Depends on the format you rendered. Which "Output Format" template/settings did you use?

Thank you guys, things are more clear for me now.

I rendered with "Main Concept AVC/AAC (*.mp4; *.avc)" With option of "Internet HD 1080p" and changed it a bit, but nothing serious.

What are you system specs? there is an app Speccy that will display your hardware details. Post a text output of that, the community may be able to help you.

Also post your Vegas Project settings, and "Media info" on your source material on your timeline.

What are you system specs? there is an app Speccy that will display your hardware details. Post a text output of that, the community may be able to help you.

Also post your Vegas Project settings, and "Media info" on your source material on your timeline.

Computer is quite old laptop, so I think it's normal to have slow rendering. I was just curious why it was slow no matter what rendering settings are put. But it's most likely that the main video was reversed, sped up, cropped and sharpened. Even preview is quite slow (just jumping past like 30 frames each second).

Now my main question is.. Is there any way to re-render the project but faster? I mean.. Reversed video is already rendered in a way.. I would imagine it would be saved somewhere or something to be rendered faster. I just edited some generated media and I need to render the video again. I'm not sure if I want to wait the whole day for it again ;D

There are utilities out there that cut pieces off the front or end of an MP4. There are also utilities that concatenate a couple of MP4s. I believe they work without rendering the whole file. You could render just the last little bit of your timeline to a new file, truncate the old file, and patch on the newly rendered bit. I am not at my rendering computer or I could tell you the names of the utilities I use, but they should be easy to find.

I am not sure if this applies here but if the project is set to 32bit, the render time increases dramatically too.

There are utilities out there that cut pieces off the front or end of an MP4. There are also utilities that concatenate a couple of MP4s. I believe they work without rendering the whole file. You could render just the last little bit of your timeline to a new file, truncate the old file, and patch on the newly rendered bit. I am not at my rendering computer or I could tell you the names of the utilities I use, but they should be easy to find.

I'll give a shot at this. That looks helpful.

I am not sure if this applies here but if the project is set to 32bit, the render time increases dramatically too.

Nah. It's good for me with 8bit (If I'm correct about what are you talking about).

Overall, thanks for everyone. I think there are more things for video to fix, so I'll rerender some night (if earlier mentioned method won't work). Again. Thank you.

Slow render at any settings means the bottleneck is not in the output engine, but in your upstream filters, one of more of which may be single threaded!

Think of the time when you tried to drink from the hose, and an upstream prankster pinched it.