Reply To: Dynamic paint vertex weights in 2.8 broken?
With the help of a “UV Warp Modifier”, a UV map scaled to zero at UV-vertex-coordinates (0, 0) and two Empties at (0, 0, 0) and (1, 1, 0) in 3D space for defining the UV coordinate system shift, you can make dynamic weight painting visible in Blender 2.8:
File is here.
The basic idea behind this is that the “UV Warp Modifier” helps us to transfer the vertex weight values into the U and the V coordinate of our UV-vertices. The UV coordinates now can be accessed via a “UV Map Node” and either the U or the V coordinate selects a color from a color ramp with rainbow colors ranging from blue (value = 0) to red (value = 1). The output gives the shader’s colour input.