Texture painting tips and workflow

• You can paint on 3d objects in Maya and Phototshop
• Use a variety of brush shapes
• Use a variety of opacities 
• Sample from existing textures with the clone and pattern stamp tools
• Blend layers on top of each other
• Paint texture guides in advance in Maya
• Use a wacom tablet
• Use photoshop brush textures
• Use crazy bump to generate normal and spec maps
• Use high quality rendering and lighting in Maya to see normal and spec.

Workflow

1. Layout UV's
2. Paint base colors in 3d (optional)
3. Perform UV snapshot and/or establish photoshop network
4. bring snapshot into Illustrator for vector work
5. add new layers in photoshop, begin painting base texture patterns using guides
6. add new layers in photoshop, sample and clone from source material
7. blend layers together using blend modes and opacity changes
8. save PSD, update network in Maya
9. Correct texture seams using Maya or Photoshop 3d paint
10. use final color map to generate spec and normal maps using crazy bump.