Blender has 2 different Rendering options. On the one hand we have the new physically based Renderer (Cycles), and on the other hand we have blenders Internal Renderer.

Depending on which Renderer you use, BPainter offers a different Set of functionality. Here is an overview of what functions can be used with each Renderer.

Feature Comparison 

BPainter offers a different set of features for Blenders Internal and Cycles Renderer. Here is a feature comparison of both render modes.

Features

Cycles Renderer

Internal Renderer

Paint Layers
Adjustment Layers
Procedural Layers
Mask Layers
Merge Layers
Universal Brush Library
Universal Color Palette Library
Brush Textures Support
Stencil Textire Support