Render Menu
The menu contains all the options you need to render a picture or animation. You can define several render presets, such as for preview and for final rendering. This saves you having to change the settings one by one each time. Using the render settings, you can also switch on effects such as Multi-Pass rendering.
Render Alerts
Missing textures
If Cinema 4D is unable to find any textures when you render, an alert will appear. If you choose to continue rendering, the materials will be used without the missing texture maps.
Cinema 4D searches for textures at specific locations that are listed under Paths .
The Project Asset Inspector's functions (e.g., via 
Select Missing Assets and 
Replace Asset(s) with...) can be used to locate missing assets and replace them.