3 minutes clip and render time 2:30-3 h - that can be much muuch to long rendering time but it also can be really fast render time - everything depend's on:
- what you did in AE - what effects did you use, what expressions, how many layers etc.
- how optimized is your project (f.eg. 4k footage/8/16k images in full hd clip could slow you down)
- what is your computer setup- f. eg. rendering to the same hdd where you have all your assets that you use in that project, your project files and cache
- what is the final output format and codec of your file.
Thanks for replay back, I use for format QuickTime and H.264 for my clip. If I render only 1 image without any effects or any music, It's taking about 20 to 30 minutes to render
You should never use QuickTime H.264 because Apple is no longer supporting that format in the QuickTime container and it never was any good.
I have had compositions take 10 to 20 minutes a frame surrender and compositions that rendered at 10 to 20 frames a second. It all depends on what you are doing.
If you enabled Ray traced rendering then your renter times are going to be really really long. If you threw in particle effects, temporal effects, or a whole host of other things render time can easily go way up.
Depending on your project you may be better off to render a lossless master and then do your H.264 rendering with the Adobe media encoder. For some compositions you can go directly from AE to the Adobe media encoder. You have provided no details about what you're doing in the composition so we can't make an intelligent suggestion about how to render the project. If there are a lot of cuts in your three minute video then you may be trying to use AE as an editing app when you should be using the app to render shots that you cut together in your NLE (Premiere Pro).