RapidIcon is an easy to use icon generator/creator for your models and prefabs

Simply navigate to the folder in your project where your models are saved, select the icons you wish to edit, edit them if you need to, and then export them

Features included:

Full asset browser which automically detects all models and prefabs
Batch editing of icons
Batch export of icons
Modify object position, rotation and scale in the icon
Modify camera, postion and rotation
Modify object animations (experimental, requires being in play mode and object must use Animator component)
Orthographic or perspective camera projection
Modify ambient and directional light (colour, direction and intensity)
Apply post-processing shaders to the icon (image-effect shaders)
Five post-processing shaders included
Image overlay
Image underlay
Mask
Transparancy
HSV
Supports virtually any image-effect shader so create your own or download from the store
Save post-processing presets to load later on
Toggle premultiplied alpha
Switch between point, billinear, and trillinear filtering
Change the export resolution (min: 8×8 px, max: 2048×2048)
Icons exported into the project assets folder will have the asset import settings automically set correctly

Please read the documenation for full details