Painting_Editor_Trim.mp4
Painting_Editor_Field_Trim.mp4
More for an art project than a game, as the performance isn't that great (understandably).
There are two cameras in the scene. The first sends the data to two Render Textures.
One, just a screenshot for the colors, the second a depth pass with the RBG values being the world positions.
Then a VFX graph uses those Render Textures to set colors and positions of individual paint brush strokes. With the size of the stroke being adjusted by the distance from the camera.
The second camera then only shows the VFX graphs outputs on the main display.