Commit Graph

320 Commits

Author SHA1 Message Date
Zack Middleton c9d12aa3f3 Add common OpenGL version parsing + OpenGL 3 fixes
- Parse OpenGL version in sdl_glimp.c to share with both renderers.
- Add GL_VERSION_ATLEAST(major, minor) macro.
- Get address of glGetStringi if using OpenGL 3.
- Fix glConfig.extensions_string when using GL3 core context in
opengl2 renderer.
- Make opengl1 renderer's gfxinfo support qglGetStringi too.
2017-10-01 23:09:20 -05:00
Zack Middleton 20573bce43 Don't link to libGL at compile time
Get all OpenGL functions using SDL_GL_GetProcAddress(). This makes it
easier to cross-arch compile on Linux and add support for OpenGL ES
in the future.

Users still have to supply their own libSDL2 for cross-arch compiling
on Linux. But now the user does not have to re-install libgl1-mesa-dev
package for i386 or amd64 on Debian when switching between compiling
ioquake3 for x86 and x86_64.
2017-10-01 23:07:33 -05:00
Zack Middleton 6f0736ce9a Fix loading renderer DLLs on Windows x86
After 'Fix floating point precision loss in renderer', Windows x86
client won't load the renderer DLLs. The problem is a 64 bit modulus.
I couldn't find any reports of this online. However, client with
built-in renderer worked with the 64 bit modulus.

Only tested with mingw-w64.
2017-09-07 20:42:31 -05:00
SmileTheory 9d1c6748f5 OpenGL2: Force VAO usage on OpenGL 3.0+ 2017-08-08 20:20:11 -07:00
SmileTheory 3f415abe61 OpenGL2: Use extension functions with OpenGL versions before 3.0. 2017-08-07 18:00:00 -07:00
Zack Middleton 59b1262b82 Fix floating point precision loss in renderer [part 2]
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.
2017-08-03 00:14:22 -05:00
Zack Middleton 30fdd88c9f Fix floating point precision loss in renderer [part 1]
Patch for https://bugzilla.icculus.org/show_bug.cgi?id=5931 by
Eugene C. from 2013 plus recent fix for tcMod rotate.

I merged the changes into the OpenGL2 renderer though the fix for
tcMod turb doesn't translate.
2017-08-02 23:44:44 -05:00
Zack Middleton e62941396d Remove unused imgFlag_t value IMGFLAG_SRGB 2017-07-30 15:39:32 -05:00
Zack Middleton 6693465336 Don't try to remove non-existant command 'shaderstate'
Remove commands in the order they are added because the different
orders is annoying.
2017-07-27 18:58:46 -05:00
SmileTheory 356ae10ef6 OpenGL2: Don't use initialized arrays in glsl shaders.
Unsupported in GLSL 1.20 (Mac OS X 10.6)
2017-07-24 16:29:04 -07:00
SmileTheory 786f6fc525 whoops, left a bit of debugging enabled 2017-07-14 16:26:41 -07:00
SmileTheory 6f1712dafe OpenGL2: "Fix" cg_shadows 4. 2017-07-14 16:15:02 -07:00
SmileTheory 6a77f4e363 OpenGL2: Don't do MSAA resolve/shadow mask/SSAO on shadow views. 2017-07-14 15:42:41 -07:00
SmileTheory a4c09236b1 OpenGL2: Remove GLSL_ValidateProgram().
https://stackoverflow.com/questions/39761456/why-does-glvalidateprogram-fail-when-no-vao-is-bound
2017-07-13 12:10:09 -07:00
SmileTheory d549b642bc OpenGL2: Use an OpenGL 3.2 core context if available. 2017-07-13 12:03:10 -07:00
Zack Middleton dd73e19546 Improve warning for too many skin surfaces 2017-07-04 15:36:26 -05:00
Zack Middleton 904bbc1a8f Allow more than 32 surfaces in skin files
Models don't have a surface limit; skins shouldn't either. Some player
models require more than 32 surfaces since vanilla Quake 3 did not
enforce the limit.

Skins are now limited to 256 surfaces because having no limit would
require parsing the skin file twice. The skin surfaces are dynamically
allocated so it doesn't increase memory usage when less surfaces
are used.
2017-07-04 14:06:09 -05:00
Zack Middleton 4dffc52c1d Add warnings for animMap and videoMap shader keywords 2017-07-02 17:00:07 -05:00
Zack Middleton 5aa7fb39c2 OpenGL2: Remove two unused cvars and update readme 2017-07-02 16:47:55 -05:00
Zack Middleton e77153766a OpenGL2: Draw sun shadows for first person IQM player models
This makes IQM have the same behavior as MD3 and MDR.
2017-06-30 14:07:26 -05:00
Zack Middleton 102c79eb49 OpenGL2: Fix black planar projection shadows (cg_shadows 3)
Restore MD3 code for cg_shadows 2 and 3 like other model formats.
Fix planar projection shadow deform (cg_shadows 3) to use correct
light direction. I fixed light direction for stencil shadows
(cg_shadows 2) but it's still broken.
2017-06-30 14:06:13 -05:00
Zack Middleton 09a23e0417 OpenGL2: Fix checking r_shadowCascadeZFar pointer instead of value 2017-06-29 21:36:04 -05:00
SmileTheory e03cdf444c OpenGL2: Remove SF_VAO_MESH. 2017-06-16 16:52:53 -07:00
Zack Middleton 66fec1b059 Remove unneeded code from OpenGL2's RB_RenderDrawSurfList
Make it more similar to OpenGL1.
2017-06-03 14:03:09 -05:00
SmileTheory c65d2c2657 Add vao cache for static surfaces.
Remove support for draw range elements, multi draw arrays, world vao creation, surface merging.
2017-04-28 02:13:25 -07:00
SmileTheory 468da0fabc OpenGL2: Generate less shaders when r_sunlightMode is disabled.
Original patch by https://github.com/inolen in https://github.com/ioquake/ioq3/pull/36
2017-01-26 19:58:28 -08:00
SmileTheory 0238810f34 OpenGL2: Render dlights only when r_lightmap is 0.
https://github.com/ioquake/ioq3/issues/246
2017-01-24 20:17:06 -08:00
SmileTheory 294109628d OpenGL2: Fix bug in generating normal maps for non-square textures. 2016-12-12 15:33:54 -08:00
SmileTheory 06b47ad2a9 GLimp_HaveExtension() -> SDL_GL_ExtensionSupported() 2016-12-10 00:35:17 -08:00
SmileTheory 0672905ef1 OpenGL2: Detect Intel graphics and avoid/use certain operations there.
Also use qglCopyTextureSubImage2DEXT instead of qglCopyTextureImage2DEXT.
2016-12-07 22:30:55 -08:00
SmileTheory 730207817e OpenGL2: Don't bind null framebuffers when not using framebuffers. 2016-12-07 14:13:29 -08:00
SmileTheory ab8bcf5c5b OpenGL2: glGetIntegerv -> qglGetIntegerv
Thanks Cyrax for pointing this out.
2016-11-25 02:13:03 -08:00
SmileTheory 93066d2e05 OpenGL2: Don't draw viewmodels in portal views.
Thanks Cyrax for pointing out, should fix https://bugzilla.icculus.org/show_bug.cgi?id=6363.
2016-11-25 01:30:21 -08:00
SmileTheory 2349ef038e OpenGL2: Don't interleave texCoords and lightCoords in tess. 2016-11-25 01:17:46 -08:00
SmileTheory f7711a8119 OpenGL2: Add more ambient to lightmapped materials. 2016-10-27 02:12:32 -07:00
SmileTheory 8955752457 OpenGL2: Prioritize loading .png images over all others besides .dds. 2016-10-27 02:11:29 -07:00
SmileTheory ffcec94f50 OpenGL2: Load images with "_nh" suffix as parallax normalmaps. 2016-10-27 02:10:40 -07:00
SmileTheory 89701a1a45 OpenGL2: Faster mipmap generation. 2016-10-21 19:48:02 -07:00
SmileTheory ba59df8c8c OpenGL2: Remove check for GL_ARB_texture_non_power_of_two.
Core in OpenGL 2.0.
2016-10-21 16:58:42 -07:00
SmileTheory 41ae7815c9 OpenGL2: Remove half float support.
Not enough accuracy for textures larger than 1024x1024, such as merged lightmaps.
2016-10-20 20:09:12 -07:00
SmileTheory 863adfcfc2 OpenGL2: Fix fog color. 2016-10-12 23:17:19 -07:00
SmileTheory ad819edcc4 OpenGL2: Workaround for multiple deforms on MD3 mesh.
https://github.com/ioquake/ioq3/issues/122
2016-10-11 04:18:41 -07:00
SmileTheory aa79738c50 OpenGL2: Store vertex colors and hdr lightmaps/lightgrid as RGBA16. 2016-10-11 03:28:20 -07:00
SmileTheory 239f539702 OpenGL2: Non-square merged lightmaps. 2016-10-10 03:06:03 -07:00
SmileTheory 1cfa16674c OpenGL2: Some tr_image refactoring/cleanup. 2016-09-22 23:04:13 -07:00
SmileTheory 8417c184b4 OpenGL2: Clamp entity lighting to more resemble OpenGL1. 2016-09-14 04:19:46 -07:00
SmileTheory 8749d62bbd OpenGL2: Remove per fragment tangent space calculation code. 2016-09-14 03:57:51 -07:00
SmileTheory 4faf1008a0 OpenGL2: Remove map color scaling and r_forceSunMapLightScale.
Also simplify overbright code in ComputeShaderColors().
2016-09-14 02:59:54 -07:00
Tim Angus bd062f713a Merge pull request #216 from tkoeppe/abs
[renderergl2/tr_main.c] Use floating-point fabsf() for floating-point values
2016-09-13 10:34:48 +01:00
SmileTheory bbc9e263f0 OpenGL2: Fix more reversed VectorCopy4() usage. 2016-09-13 01:41:46 -07:00