After I finished the model, I wanted to get some high resolution images in the rendering mode, but I found that it is not possible to change the resolution by using the "capture image" button which I think is the only option you can use in rendering mode to get the image? I really need some high resolution images, I'm using a student version Fusion 360, I guess that's why I can't change the resolution?
Hi zhaoqibinjosh - To create a rendering larger than your local resolution you can use Autodesk's cloud rendering service. This is accessible within Fusion 360 by going to the item details->Renderings and selecting "OPTIONS" in the view that you want to render. From the preview you can change it to small, Large or Custom. I'd recommend custom so you get exactly what you are looking for.
Note: I expect cloud rendering is free for educational/non-comercial use, so don't worry about the paid/cloud credits.
-Nathan