EASY TEXTURING & PBR

• Per-pixel, Ptex or Microvertex painting approaches
• Realtime Physically Based Rendering viewport with HDRL
• Smart Materials with easy set-up options
• Multiple paint Layers
• Popular blending modes
• Layer groups
• Tight interaction with Photoshop
• Texture size up to 16k
• Fast Ambient Occlusion and Curvature map calculation
• Rich toolset for all kind of painting tasks

PBR texturing is described here

Hand painting is described in this article

Also check out the tutorials section