osgFX::Effect is awkward to use because of the lazy-definition of passes, no support for compileGLObjects, useless 'Technique' abstraction and having to define silly methods like 'effectAuthor()'
Handling the multi-pass rendering inside the Drawable also avoids redundant culling tests against the same bounding box for each pass.
Since commit e8662bea31, we're using OSG functionality that contains an unfixed crash bug in version 3.2. The bug is fixed in version 3.4 (OSG commit 6351e5020371b0b72b300088a5c6772f58379b84)
Instead use getImage and let the caller create the Texture. Sharing of textures is then handled in post by the SharedStateManager.
This is closer to what the OSG serializer does.
Streamlines the TextureManager and will make it easier to multithread.
Improves intersection testing performance, shaving off ~2ms of frame time in exteriors.
Also increases terrain loading time by ~1ms per cell, so will have to look into background loading soon.
conversion from 'const float' to 'int', possible loss of data
conversion from 'double' to 'int', possible loss of data
conversion from 'float' to 'int', possible loss of data