Rough notes of texture ideas

(Overlaps extensions stuff.)

EXT_texture_rg

EXT_draw_buffers EXT_draw_buffers_indexed / OES_draw_buffers_indexed

OES_texture_float, OES_texture_half_float

OES_texture_float_linear: for floating point textures, filtering mode (including mipmaps) *_half_float_linear (augments texture extension)

WebGL caveat (mentions IE as the problem; still an issue?):

https://stackoverflow.com/a/31974179

Vertex format extension-relevant:

OES_vertex_type_10_10_10_2 GL_OES_vertex_half_float

could do translation on this before upload? maybe where doing memcpy() alternatives