Notice how there’s no dots on the brush?
That means you don’t have enough polys in the mesh.
You can paint an editor cube, you need a high poly mesh 
The brush should look like this
More dots the better.
Notice how there’s no dots on the brush?
That means you don’t have enough polys in the mesh.
You can paint an editor cube, you need a high poly mesh
The brush should look like this
More dots the better.