I have been having a lot of trouble getting this to work, and I'm hoping someone might be able to help me.
I have a dynamic paint canvas (ground) on which I want to animate the tracks of a vehicle moving across it (animated).
Both ground and vehicle are rigid bodies. I cannot use Vertex displacement, as the required vert density is too high to manage (the ground plane is large).
I have to use the depth type of image, as using a displace type only gives a 100% grey image. Using Depth I get small white paint marks where the tracks are touching the ground plane.
So I think I have a usable image, but I cannot get it to actually do anything. Even when using a single image, I cannot get any visible tracks on the ground. I've tried plugging the image into the displacement material output, I've tried adding it as a texture in a new displacement modifier, and I have even tried to use it as a Bump map. In all cases I've tried to multiply and/or invert the image, but nothing is visible at all.
Any suggestions as to how I actually get the below baked depth image or sequence of images to give some visible displacement? I know it just looks black, but there are actually very faint white marks on it... hope that makes sense.
Zoom in if needed to see the marks.