I can't get Soft Particles to work, it's activated in the project settings. Any idea ? Here is a screen :
That's because they are using the Scene Depth to work. But in the Orthographic view there is no scene depth. An alternative is to use a very low Field Of View in your camera and move it far away This will create the impression of an orthographic view and you can use the Scene Depth functionality
Thanks for your reply! I cannot use perspective with low fov since I need each object to be of precisely equal size on screen regardless of distance for my UPixelator to completely remove pixel creep on movement. Also orthographic depth does exists and can be sampled from _CameraDepthTexture and I'm using it already for edge detection. The only difference I know (aside VR stuff) is that perspective uses logarithmic depth to have better accuracy closer to camera while orthographic uses linear, better explained in this post.