Use float in moto instead of double for MT_Scalar.
This switch allow future optimization like SSE.
Additionally, it changes the OpenGL calls to float versions as they are
very bad with doubles.
Reviewers: campbellbarton, moguri, lordloki
Reviewed By: lordloki
Subscribers: brecht, lordloki
Differential Revision: https://developer.blender.org/D1610
The ultimate goal is to only allow the rasterizer to handle OpenGL and bf_gpu
calls. This commit creates a RAS_ILightObject interface and a RAS_OpenGLLight
implementation.
