minor cleanup of old code and default settings
try not to bother with depth test unless we are actually going to need it (small performance boost in some cases)
don't clear depth bit in flip(), while technically correct it's also a bit redundant (and comes with a slight performance hit)
allow us to build without D3D support under Windows (just define NO_DIRECT3D)
clean up TMAP flags
fix a couple of minor OpenGL state change issues with spec and env map rendering
make sure we build again for OS X (OGL extension functions work a little different there)
render targets always need to be power-of-2 to avoid incomplete buffer issues in the code
when we disable culling in opengl_3dunlit be sure that we re-enable it on exit of function
re-fix screenshots
add true alpha blending support (with cmdline for now since the artwork has the catch up)
draw lines with float positioning, to be more accurate with resizing on non-standard resolutions
don't load cubemaps from file for D3D, not sure how to do it anyway
update geometry batcher code, memory fixes, dynamic stuff, basic fixage, etc.
newer OpenGL extension support
add GL_ARB_texture_rectangle support for non-power-of-2 textures as interface graphics
add cubemap reading and writing support to DDS loader
fix bug in DDS loader that made compressed images with mipmaps use more memory than they really required
add support for a default envmap named "cubemap.dds"
new mission flag "$Environment Map:" to use a pre-existing envmap
minor cleanup of compiler warning messages
get rid of wasteful math from gr_set_proj_matrix()
remove extra gr_set_*_matrix() calls from starfield.cpp as there was no longer a reason for them to be there
clean up bmpman flags in reguards to cubemaps and render targets
disable D3D envmap code until it can be upgraded to current level of code
remove bumpmap code from OpenGL stuff (sorry but it was getting in the way, if it was more than copy-paste it would be worth keeping)
replace gluPerspective() call with glFrustum() call, it's a lot less math this way and saves the extra function call
- remove special uv offsets for non-standard res, they were stupid anyway and don't actually fix the problem (which should actually be fixed now)
- avoid some costly math where possible in the drawing functions
- add opengl_error_string(), this is part of a later update but there wasn't a reason to not go ahead and commit this peice now
- minor cleanup to Win32 extension defines
- make opengl_lights[] allocate only when using OGL
- cleanup some costly per-frame lighting stuff
- clamp textures for interface and aabitmap (font) graphics since they shouldn't normally repeat anyway (the default)
(doing this for D3D, if it doesn't already, may fix the blue-lines problem since a similar issue was seen with OGL)
let gr_render_buffer() render untextured polys (OGL only until some D3D people fix it on their side)
add MR_SHOW_OUTLINE_HTL flag so we easily render using HTL mode for wireframe views
make Interp_verts/Interp_norms/etc. dynamic and get rid of the extra htl_* versions
- minor cleanup of things that have bothered me at one time or another
- slight speedup from state switching
- slightly better specmap handling, fixes a couple of (not frequent) strange and sorta random issues
- make sure to only disable HTL arb stuff when in HTL mode
- handle any extra lighting pass before spec pass so the light can be applied properly
minor cleanup and readability changes
get Apple GL version change in CVS finally, the capabilities of an Apple GL version don't neccessarily correspond to it's features
make debug messages a bit more readable
clean up the debug console commands for minimize and anisotropic filter setting
make anisotropic filter actually work correctly and have it settable with a reg option
give opengl_set_arb() the ability to disable all features on all arbs at once so I don't have to everywhere
add -img2dds support
cleanup some D3D stuff (missing a lot since the old code is so unstable I couldn't get it working like I wanted)
some minor OGL cleanup and small performance changes
converge the various pcx_read_bitmap* functions into one
cleanup/rename/remove some cmdline options
fix OGL fullscreen switch for SDL since the old way only worked under Linux and not OSX or Windows
fix OGL version check, it would allow a required major version to be higher if the required minor version was lower than current
speed up gr_opengl_flip() just a tad
inverted gamma slider fix that Sticks made to D3D
possible fix for ATI green screens
move opengl_check_for_errors() out of gropentnl so we can use it everywhere
fix logged OGL info from debug builds to be a little more readable
if an extension is found but required function is not then fail
try to optimize glDrawRangeElements so we are not rendering more than the card is optimized for
some 2d matrix usage checks
fixes various problems and is past time to make the switch
try and keep up with how much VBO data is in memory too since that takes away from texture memory
add empty gr_opengl_draw_line_list() so that it's not a NULL pointer
make gr_opengl_draw_htl_sphere() just use GLU so we don't need yet another friggin API
some header cleaning
only one tmapper_internal for OGL, don't use more than two tex/pass now
seperate out 2d matrix mode to allow -2d_poof in OGL and maybe fix missing
interface when set 3d matrix stuff doesn't have corresponding end
add dump_frame stuff for OGL, mostly useless but allows trailer recording
fix VBO crash with multitexture using same uv coord data
little speedup of opengl_tcache_frame()
error message to make sure hardware supports the minimum texture size
move OpenGL version check out of the extention printout code
disable 2d_poof with OpenGL
taylor