Working with a texture on the canvas and
using cloner to apply to model

Import or select a texture

Go texture/crop and fill

Use any RGB tool on the canvas art

Activate Flat material

Create a new layer

Draw your model in it

PM: drop, color and fade

Activate the clone tool

Layers mode on

Start drawing .... the model will be cloned to your sphere ...

Pick up ...

The texture is updated ...

Apply the Fast shader ...

Clear the bottom layer: