Abstract base class for IGraphicsContext implementations.
These protected fields must be initialized by subclasses in the constructor:
Enable additional debug-level log output?
This switch must be set before TinmanModule.Initialize is called:
< 0 : disable debug-level log output
= 0 : use LowLevel.IsDebug to toggle debug-level log output
> 0 : enable debug-level log output
Asserts that IBeginEnd.Begin has been called.
The current set of render targets that has been specified via IGraphicsContext.SetRenderTarget.