Fix two constants in GLSL shaders. Remove f suffix from float and fix
int to float assignment. They were causing shader compile errors in
OpenGL ES 2 context.
Remove disabling clip plane. Clip plane is unused and never enabled in
the opengl2 renderer. Remove disabling it to avoid causing a GL error
when using OpenGL 3.2 core profile or OpenGL ES.
Make VAO cache vertex stride be size of srfVert_t since that is what
is uploaded to the GPU. No behavior change. There is a disabled debug
id in srfVert_t though which if enabled changes srfVert_t size.
Fix floatTime using float precision instead of double using GCC.
Fix R_BindAnimatedImage to be in sync with function table.
Fix vertexDeform bulge, vertexDeform normals, noise wave function
at high level time.
Revert unnecessary float -> double conversions.
Appling the diff to renderergl2 mostly worked.
Had to change GLimp_HaveExtension to use GL_EXTENTIONS
directly because Elite Forces GL2 requires an extension that didn't fit in (the smaller than Q3)
glConfig.extensions_string.
Had to set ambientLight for RF_FULLBRIGHT, GL2 doesn't use ambientLightInt.
Made the RF_FORCE_ENT_ALPHA code change pStage->stateBits because the stateBits
are read a lot, whereas in GL1 it's done as an expression and passed to GL_State.
Copied from Spearmint.
There are a few issues; holodeck doors are missing and parts of light grid are black (???).
