Base class for (relatively) simple drawing of
data onto terrain tiles, intended for debugging purposes and for the Atlas
editor (hence not trying to be very efficient).
Converts the given string, consisting of underscores and letters,
to camelCase: the first letter of each underscore-separated "word"
is changed to lowercase.
Class TransparentDepthShadowModifier: Use to render shadow data for
transparent models into a depth texture: Writes into the depth buffer,
color data is undefined.