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288 commits

Author SHA1 Message Date
Magnus Norddahl
4ffa344f7d - Fix black pixels when subtractive lights are in range for PBR materials 2018-03-26 00:01:52 +02:00
Christoph Oelckers
d586d774cf - adjusted GL renderer to the new rules for alpha textures. This means that the translation fallback is only needed for the legacy renderer now. Modern GL can use the regular texture and will apply a grayscale mapping instead of merely using the red channel. 2018-03-22 20:42:17 +01:00
Magnus Norddahl
9b7bef59d2 - fixed Intel rendering glitch with uDynLightColor 2018-03-12 21:44:55 +01:00
Magnus Norddahl
07fa310f23 - move material light modes to their own subshader lumps 2018-02-20 00:13:05 +01:00
Magnus Norddahl
eb39e88682 - clean up the main.fp light handling code so that a single ApplyDynLights function applies all dynamic light 2018-02-19 02:01:33 +01:00
Magnus Norddahl
94fbcacf22 Merge branch 'gzdoom' into materials 2018-02-10 00:08:17 +01:00
Magnus Norddahl
3207d8aef7 - generate uniform declarations from c++ 2018-02-09 23:29:31 +01:00
Magnus Norddahl
769867475c - Replaced max(dot(a,b), 0.0) with clamp as some rounding errors caused pow to receive negative values when then value was subtracted from 1.0 (undefined glsl behavior) 
- Fixed that surface angle attenuation was getting applied twice
 2018-02-03 23:56:55 +01:00
Magnus Norddahl
7b9a334f77 - Change PBR materials to use quadratic light falloff 2018-02-03 13:17:09 +01:00
Magnus Norddahl
747ef8324e - Improve sector light slightly for PBR 2018-01-29 19:09:24 +01:00
Magnus Norddahl
6deb51f23c - disable the tonemapping to let it bloom instead 2018-01-27 00:42:17 +01:00
Magnus Norddahl
a6da1d356a - add PBR materials to main.fp 2018-01-27 00:22:15 +01:00
alexey.lysiuk
7206bfcfbc Made software fuzz shader compatible with supported OpenGL versions 
Use array constructors because initializer list is a core feature since OpenGL 4.2
 2018-01-26 09:53:31 +02:00
Magnus Norddahl
7a59bcde4c - move glossiness and specular level to GLDEFS 2018-01-25 19:53:55 +01:00
Magnus Norddahl
0855418475 Merge branch 'gzdoom' into materials 
# Conflicts:
#	src/gl/shaders/gl_shader.cpp
#	src/gl/shaders/gl_shader.h
 2018-01-25 19:21:19 +01:00
Magnus Norddahl
4c0dce875f Merge branch 'fuzz_software' into gzdoom 2018-01-25 19:00:14 +01:00
Magnus Norddahl
1875902414 - Do not flip the normal based on face direction 2018-01-23 23:59:58 +01:00
Magnus Norddahl
81c6808d2a - Add specular and normal map handling to main.fp 2018-01-23 23:10:28 +01:00
Magnus Norddahl
e045fb57c9 - Declare new textures for specular and pbr modes 2018-01-23 20:51:48 +01:00
Magnus Norddahl
a23e5f49f6 - Add "fuzz software" to GL that renders fuzz like the scaled fuzz mode in the software renderer 2018-01-07 02:29:55 +01:00
Magnus Norddahl
5f36b86013 - Add dynamic spot lights 2018-01-04 17:58:11 +01:00
Magnus Norddahl
c3562fead2 Merge branch 'dynlightmodels' 2017-08-15 00:27:26 +02:00
Magnus Norddahl
a6d4bfc748 - Added linear and nearest shadowmap filters (enabled with defines) 2017-08-13 13:49:02 +02:00
Magnus Norddahl
5c7b1ee8e1 - Significantly improve shadowmap light performance for faces with a large number of lights but where only a few applies to each individual fragment 2017-08-08 23:28:42 +02:00
Magnus Norddahl
65d5f4ae18 - Fix normal normalize 2017-07-27 22:31:57 +02:00
Magnus Norddahl
2000784307 - normalize the normal vector in the vertex shader because our vertex attribute uses a low precision format (10 bits) 2017-07-25 20:20:13 +02:00
Rachael Alexanderson
8d3d271484 - tweaked the banded software lightmode shader a bit more, looks a little closer (but still not quite...) to real ZDoom in paletted mode 2017-07-21 18:45:08 -04:00
Rachael Alexanderson
e1b4bb11ba Merge https://github.com/coelckers/gzdoom 2017-07-09 20:09:12 -04:00
Magnus Norddahl
ddd1b629c3 - Calculate globvis/r_visibility in r_utility and use it in GL and poly renderers 2017-07-09 19:01:34 +02:00
Rachael Alexanderson
b4915d624d - removed 'cooling' component of the shader since it technically wasn't really functional (guess we have to use a separate shader to do that) 
- changed the math to use the 'mix' formula
 2017-07-02 16:59:15 -04:00
Rachael Alexanderson
0d8b7c55ef - added a grayscale formula selector 2017-07-02 16:45:06 -04:00
Rachael Alexanderson
bd02893ce7 - expanded hard limits for saturation to -15.0/15.0 
- added menu option for saturation
- tried to get the new saturation shader to consume less GPU power by turning it off when it is 1.0
 2017-07-02 16:45:06 -04:00
Rachael Alexanderson
63da6e70c0 - added a vid_saturation control - works in postprocessing, only. 2017-07-02 16:45:06 -04:00
Rachael Alexanderson
1562d64580 - fixed: in the availability of gl_fogmode == 0, default to having square fog instead of radial fog in gl_lightmode == 8 2017-06-25 09:37:14 -04:00
Magnus Norddahl
b6e035e796 - Implemented radial fog support in software light mode 2017-06-25 15:02:34 +02:00
Rachael Alexanderson
4229389680 - fixed: banded sw light was broken in a recent commit. Added back the 32 light levels and also made it prefer darker shades. 2017-06-21 19:10:39 -04:00
Magnus Norddahl
28acf2ad06 - Fix OpenGL software diminishing light to be identical to truecolor swrenderer and softpoly 
All there is left is to make globVis an uniform and move the LightVisibility::SetVisibility calculations out of the software renderer.
That will make it 100% correct for all r_visiblity values and aspect ratios.
 2017-06-22 00:01:57 +02:00
Magnus Norddahl
7acb492852 - Add gl_shadowmap_quality cvar that controls the resolution of the 1D shadow map texture 2017-06-04 00:44:49 +02:00
Magnus Norddahl
265df4b797 - Change shadowmap resolution from 1024 to 128 2017-06-03 21:19:34 +02:00
Magnus Norddahl
85a9984807 - Add OpenGL ES 3 support to GL renderer 2017-04-06 23:34:42 -04:00
Christoph Oelckers
9eae422dab Merge branch 'shadowmaps' of https://github.com/raa-eruanna/qzdoom into 3.0_work 
# Conflicts:
#	src/CMakeLists.txt
#	wadsrc/static/language.enu
 2017-03-11 19:55:43 +01:00
Magnus Norddahl
59ec97d2d5 Fix shadow map acne and the attenuate flag 2017-03-10 22:08:55 +01:00
Magnus Norddahl
b660493051 Add menu option for disabling shadow maps and detecting if storage buffers are available or not 2017-03-10 19:10:40 +01:00
Magnus Norddahl
cb40c369cd Added PCF shadows 2017-03-08 01:35:07 +01:00
Magnus Norddahl
818b72fbf5 Reduce margin a little 2017-03-08 00:33:42 +01:00
Magnus Norddahl
6df3b3fbca Changed the light collision structure uploaded to the GPU to be a binary tree using AABBs for the nodes instead of a BSP plane 2017-03-07 15:58:22 +01:00
Magnus Norddahl
8515f9720a 1D shadow maps are now working 2017-03-04 09:14:01 +01:00
Magnus Norddahl
0d1deddae5 Bind shadow map texture for main.fp and sample from the shadowmap texture 2017-03-02 19:10:57 +01:00
Magnus Norddahl
538d516c9a Upload shadow map index for each light to main.fp 
Move storage buffer binding location
 2017-03-02 18:07:47 +01:00
Magnus Norddahl
d450deee76 Generate shadow map for lights 2017-03-02 16:19:07 +01:00
Magnus Norddahl
62c285f7b3 Create a shadowmap texture and upload light list 2017-03-02 16:19:06 +01:00
Magnus Norddahl
7a4b01471d Add class updating and managing the shadow map texture 2017-03-02 16:19:06 +01:00
Magnus Norddahl
6363c6cf58 Add a shadowmap shader 2017-03-02 16:19:06 +01:00
Rachael Alexanderson
226e5238fc Merge https://github.com/coelckers/gzdoom 2017-02-01 21:57:37 -05:00
alexey.lysiuk
1fd37ff2ff Removed unused input from fog boundary fragment program 
This should fix https://mantis.zdoom.org/view.php?id=151
 2017-02-01 10:05:38 +02:00
Rachael Alexanderson
0c101102dc Merge https://github.com/coelckers/gzdoom 
# Conflicts:
#	src/r_bsp.cpp
#	src/r_main.cpp
#	src/r_segs.cpp
#	src/r_things.cpp
#	wadsrc/static/language.enu
#	wadsrc/static/menudef.txt
 2017-01-28 17:39:55 -05:00
Christoph Oelckers
ee22a9371b - use Doom64 colors on sectors and linedefs. 2017-01-28 20:44:46 +01:00
Christoph Oelckers
12d073a27d - objectcolor stuff. 
# Conflicts:
#	src/gl/renderer/gl_renderstate.cpp
 2017-01-28 19:06:21 +01:00
Magnus Norddahl
9c4b11b671 Add OpenGL ES support to Linux target and enable it for ARM devices 2017-01-25 07:18:26 +01:00
Rachael Alexanderson
a04699ec1c Merge https://github.com/coelckers/gzdoom 2017-01-24 18:15:39 -05:00
Rachael Alexanderson
3154652885 - fixed possible AMD compilation error. 2017-01-24 22:24:53 +01:00
Rachael Alexanderson
9a777f719b - Added "gl_bandedswlight" to reduce the software light emulation gradient to 32 levels. 2017-01-24 22:24:53 +01:00
Magnus Norddahl
057060022a Merge remote-tracking branch 'gzdoom/master' into ssao 2016-11-27 09:59:57 +01:00
Rachael Alexanderson
b460ce31e8 Merge http://github.com/coelckers/gzdoom 2016-10-24 21:02:09 -04:00
Christoph Oelckers
bea625a42c - added an ATTENUATE flag to dynamic lights, this is set by default for attached lights. For placed lights this is off, because it'd interfere with many existing maps that depend on unattenuated lights. 2016-10-23 20:42:48 +02:00
Magnus Norddahl
be2c50f11c Merge remote-tracking branch 'gzdoom/master' into ssao 2016-10-21 23:48:30 +02:00
Magnus Norddahl
8b297221fe Merge branch 'gl_swframebuffer' into qzdoom 2016-10-16 23:18:16 +02:00
Magnus Norddahl
f81d0d3964 macOS support and Intel driver bug fixes 2016-10-16 22:40:08 +02:00
Magnus Norddahl
2a0ab96341 Merge remote-tracking branch 'origin/ssao' into qzdoom 2016-10-13 18:12:56 +02:00
Magnus Norddahl
14c1a77f8a Fix AmbientOcclusionColor bug where pixelpos was assumed to be in eye space coordinates 2016-10-13 18:08:04 +02:00
Magnus Norddahl
f5c069c759 Merge remote-tracking branch 'origin/gl_swframebuffer' into qzdoom 2016-10-11 14:54:18 +02:00
Magnus Norddahl
3c7d6234cb Add wipes 2016-10-11 14:37:57 +02:00
Magnus Norddahl
01dc9de8d1 Misc bug fixes and performance improvements 2016-10-11 10:27:18 +02:00
Magnus Norddahl
682b040b97 OpenGL based software renderer hardware accel now works for most things 2016-10-11 00:03:46 +02:00
Magnus Norddahl
f4308b3184 Add glsl shader version of the d3d9 shaders and get enough of it working for it to boot without errors 2016-10-10 21:03:55 +02:00
raa-eruanna
2a7b902a0a Merge http://github.com/coelckers/gzdoom 
# Conflicts:
#	src/gl/renderer/gl_renderer.cpp
 2016-10-10 10:39:07 -04:00
Christopher Bruns
779e6acb7b Create "final" two non-VR 3D modes: Column-interleaved and checkerboard. 2016-10-09 13:05:50 -04:00
Magnus Norddahl
1b7c42f45f Multisampling ssao bug fixes and split linear depth to its own buffer 2016-10-09 06:17:48 +02:00
Magnus Norddahl
bb79dcb634 SSAO math bug fixes 2016-10-06 07:36:49 +02:00
Magnus Norddahl
00e72028ef Add another gbuffer with normal data and make ssao pass use it 2016-10-05 07:57:27 +02:00
Magnus Norddahl
ecb57d6cd9 Merge remote-tracking branch 'gzdoom/master' into ssao 
# Conflicts:
#	src/gl/renderer/gl_renderer.cpp
#	src/gl/scene/gl_scene.cpp
#	src/gl/shaders/gl_shader.cpp
#	wadsrc/static/language.enu
#	wadsrc/static/menudef.zz
 2016-10-04 00:01:03 +02:00
Christoph Oelckers
4eb5f10b02 - use normals to have proper light attenuation. So far only implemented for walls and flats. Models are planned but need some thinking about how to efficiently collect all required lights for an object. 2016-10-03 16:09:32 +02:00
alexey.lysiuk
c68aa2b241 Added FXAA post-processing 
Implementation of Fast Approximate Anti-Aliasing is based on nVidia sample:
https://github.com/NVIDIAGameWorks/GraphicsSamples/tree/master/samples/es3-kepler/FXAA
 2016-10-03 00:15:45 +02:00
Christopher Bruns
0240cdef18 Modulate row interleaved stereo 3d offset with window height parity, because gl_FragCoord.y approaches zero at the bottom, not the top of the window. 2016-10-02 16:10:58 -04:00
Christopher Bruns
fcbf9342d6 Compute row location using gl_FragCoord. 2016-10-02 16:10:39 -04:00
Christopher Bruns
460b653709 Row interlaced 3d might be working, at least in fullscreen 1920x1080 mode. 2016-10-02 16:10:21 -04:00
Magnus Norddahl
d774136282 Added SceneData texture as the second colorbuffer when rendering a scene and placed fog data into it 2016-09-25 00:22:32 +02:00
Magnus Norddahl
9af34bac69 Add gbuffer pass support to FShaderManager and FRenderState 2016-09-25 00:22:32 +02:00
Magnus Norddahl
0a8cc1b74c Fix depth blur 2016-09-25 00:22:31 +02:00
Magnus Norddahl
24ab13f1ce Fix stripes in the reconstructed normals due to down scaling 2016-09-25 00:22:31 +02:00
Magnus Norddahl
e025f6e54b Mark portals in scene alpha channel for the SSAO pass 2016-09-25 00:22:31 +02:00
Magnus Norddahl
c7c0ffadb5 Move SSAO pass to be before translucent rendering 
Fix depth sampling location when not using fullscreen scene
 2016-09-25 00:19:16 +02:00
Magnus Norddahl
09bec67821 Resolve multisampling depth in shader 2016-09-25 00:19:16 +02:00
Magnus Norddahl
a246b58673 Change SSAO blur to be depth aware 2016-09-25 00:19:16 +02:00
Magnus Norddahl
723eb746f6 Add ssao random texture 2016-09-25 00:19:15 +02:00
Magnus Norddahl
9076d46261 Added SSAO pass 2016-09-25 00:19:15 +02:00
raa-eruanna
2339b18b01 Quick fix: prevents negative values being passed to pow. 2016-09-22 09:23:26 +02:00
raa-eruanna
72491049e0 Changes to the contrast/brightness/gamma formula for both hardware and shader gamma correction. Mainly makes a correction with the shader version where contrast/brightness being negative values would clip them inappropriately. 2016-09-22 09:23:25 +02:00
Magnus Norddahl
f7b6b1433c Added exposure pass calculating the bloom/tonemap exposure based on what the eye is seeing 2016-09-22 09:13:32 +02:00
Magnus Norddahl
f2a3b8978d Added declaration in the shader that was missing 2016-09-17 00:30:03 +02:00
Gaerzi
d99d43aeba Fixes to fuzz shaders 2016-09-17 00:30:03 +02:00
Magnus Norddahl
dc39a006dc Fix palette tonemap precision and compile error on Intel 2016-09-04 02:37:59 +02:00
Christoph Oelckers
589936f570 - draw the colormap blend after postprocessing, not before it. 
- added colormap shader to postprocessing.

This replaces the in-place application of fullscreen colormaps if renderbuffers are active. This way the fully composed scene gets inverted, not each element on its own which is highly problematic for additively blended things.
 2016-09-01 17:14:51 +02:00
Christoph Oelckers
3389a5a74e - removed most of the specific options for legacy hardware and consolidated them in one variable (does not work yet.) 2016-09-01 11:52:52 +02:00
alexey.lysiuk
2f893af857 Fixed palette tonemap mode for OpenGL 2.x 2016-08-24 11:44:33 +03:00
Magnus Norddahl
25645d901e Add Palette LUT tonemap mode 2016-08-23 09:18:18 +02:00
Christoph Oelckers
250be72939 - added handling for drawing with uniform vertices. It draws something but in the wrong place. Right now I have no idea what's happening... 2016-08-22 15:31:23 +02:00
Christoph Oelckers
7ba5acfb35 - added quad drawer interface so that this part can be done without altering a vertex buffer. 
So far it's only the framework, the new code is not active yet.
 2016-08-22 14:00:25 +02:00
Magnus Norddahl
0e2d9affb2 Make sure tonemap shader never takes the sqrt of a negative number 
Fix bug where the old hardcoded exposure bias was still being used in the uncharted2 tonemap
 2016-08-16 00:22:00 +02:00
Magnus Norddahl
a8d1197ea7 Make sure we never pass a negative value to pow, and optimize gamma uniform 2016-08-16 00:01:18 +02:00
Magnus Norddahl
210fce1193 Fix bloom shader missing its target 2016-08-14 09:05:50 +02:00
Christoph Oelckers
675822004d - use static buffer data and a uniform to handle the texture positioning of the present shader. 
That's again one less write access to the buffer. The uniform method was chosen because this way a buffer update can be completely avoided, and setting a single uniform is a lot cheaper and simpler to handle.
 2016-08-08 16:06:02 +02:00
Magnus Norddahl
346badf25f Moved state to FGLPostProcessState and merged vertex shaders 2016-08-06 11:51:08 +02:00
Magnus Norddahl
6fc7596d52 Fix aspect ratio and texture clipping in lens shader 2016-08-04 15:47:15 +02:00
Magnus Norddahl
6b9529d70f Added lens distortion shader 2016-08-02 17:32:21 +02:00
Magnus Norddahl
7709db4bb0 Fix broken viewport/backbuffer location for WriteSavePic 2016-07-31 16:23:21 +02:00
alexey.lysiuk
7de242930a Removed obsolete gamma correct shader used on macOS only 2016-07-30 15:30:35 +03:00
Magnus Norddahl
5849c83028 Added bloom and tonemap to menus 
Added gl_renderbuffers CVAR that disables render buffers
Added patch shader support to FShaderProgram
Added OpenGL 2 fallback support to render buffers
 2016-07-29 21:31:20 +02:00
Magnus Norddahl
0efee85bd8 Added tonemapping and sector based exposure control 2016-07-29 00:36:43 +02:00
Magnus Norddahl
69f52cc898 Added bloom shaders 2016-07-27 21:50:30 +02:00
Magnus Norddahl
aeb7df09de Added hardware gamma option and improved window handling on Windows 2016-07-27 11:15:19 +02:00
Magnus Norddahl
669238db66 Fix Apple GLSL compile errors 2016-07-23 17:27:19 +02:00
Magnus Norddahl
c08fc8f5a8 Fix depth calculations for R_DoomLightingEquation and make it an exact match of what zdoom does 2016-07-23 17:27:19 +02:00
Christoph Oelckers
3334b28a02 - don't let the light go completely black with software-emulated lighting. 2016-05-04 14:30:10 +02:00
Christoph Oelckers
9f91fa8f43 - make the warp2 shader's formula match the software renderer's. 
This fixes some jerkiness with vertical scrollers due to a bad sine period and makes the overall appearance of the effect what it was originally supposed to be. The old warp2 shader was not created by replicating the formula but by trial and error until it looked close enough.

A version of the old warp2 shader with a fixed sine period is still available as a custom hardware shader.
 2016-05-04 13:47:40 +02:00
alexey.lysiuk
f9022f3054 Fixed compilation of gamma correction shader with particular OpenGL setup 2016-05-02 16:13:54 +03:00
alexey.lysiuk
333560086d Calculate color values for gamma correction directly in shader 
Gamma table texture is no longer needed
 2016-05-02 11:24:42 +03:00
alexey.lysiuk
44b019413c Implemented gamma correction in OS X native backend using shader effect 2016-05-02 10:04:09 +03:00
Christoph Oelckers
70bf649364 - added clip planes for line portals and mirrors. This should eliminate the remaining problems with some visible geometry in front of the portal, it is also necessary to handle sprite splitting across line portals properly. 2016-04-29 12:26:57 +02:00
Christoph Oelckers
21283b18f4 - preparations for using clip planes on line portals. 2016-04-29 01:48:06 +02:00
Christoph Oelckers
86f38475b0 - shaders for last commit. 2016-04-27 02:10:42 +02:00
Christoph Oelckers
f066457a48 - add shader patching to allow running the engine with GLSL 1.2. 
- made some initial preparations for the shader-less fallback path.
 2016-04-26 15:26:52 +02:00
Christoph Oelckers
fc38728309 - made some changes to the shaders to allow downpatching them to GLSL 1.2: 
* disable the dynamic light code if no buffers are available
 * added a duplicate of the getTexel function which cannot be patched without creating syntax problems.
 * fixe int<->float conversion warning, which on some compilers may be an error.
 2016-04-26 11:31:27 +02:00
Christoph Oelckers
a96d6ab072 Merge remote-tracking branch 'remotes/zdoom/master' 
# Conflicts:
#	src/g_level.cpp
#	src/p_3dfloors.cpp
#	src/p_lnspec.cpp
#	src/p_saveg.cpp
#	src/p_spec.cpp
#	src/r_bsp.cpp
#	src/r_data/r_interpolate.cpp
#	src/r_data/r_translate.cpp
#	src/r_data/sprites.cpp
#	src/r_defs.h
#	src/r_sky.h
#	src/stats.h
#	src/textures/texturemanager.cpp
#	src/textures/textures.h
#	src/version.h
#	src/win32/fb_d3d9.cpp
#	src/win32/hardware.cpp
#	src/win32/i_system.cpp
#	wadsrc/static/actors/doom/doomarmor.txt
#	wadsrc/static/compatibility.txt
#	wadsrc/static/language.enu
#	wadsrc/static/mapinfo/common.txt
#	wadsrc/static/menudef.txt
#	wadsrc/static/xlat/eternity.txt
 2016-03-01 18:50:45 +01:00
Randy Heit
55142078d8 Normalize line endings 2016-03-01 09:47:10 -06:00
Christoph Oelckers
fc57180d7e - added necessary state to implement 3D light splitting using hardware clipping planes. 2016-01-30 23:01:11 +01:00
Christoph Oelckers
238990c871 don't leave any gaps in the used clip planes. 2016-01-27 12:32:39 +01:00
Christoph Oelckers
47db3252f4 - it's really not necessary to waste two clip planes for reflective surfaces because only one can be active at any time. 2016-01-27 12:30:55 +01:00
Christoph Oelckers
b45c88fc4f - changed shaders. 2015-04-05 20:20:56 +02:00
Christoph Oelckers
020b02e073 - changed deprecated texture sampler access function names. 2014-11-28 12:28:45 +01:00
Christoph Oelckers
5638aab63c - fixed: Even though the name REDISALPHA implies otherwise, this render mode still needs to respect a texture's alpha channel to ensure that things get rendered properly. Otherwise the SmoothEdges function cannot be used which is necessary to ensure that filtered textures look correct. 2014-10-26 21:17:29 +01:00
Christoph Oelckers
fd3128a164 - fixed: When changing enhanced nightvision mode the shaders need to have their fixed colormap state reset to ensure that the new settings get used. 
- fixed: The shader code for handling special fixed colormaps did not use the color vertex attribute which was most evident with the 'shadow' render style on the spectre.
 2014-10-05 09:40:36 +02:00
Christoph Oelckers
4682736585 - fixed: non-tiled mid textures on a fog boundary require some special clamping to be performed in the shader. 2014-09-21 11:08:17 +02:00
Christoph Oelckers
835dbe5bd0 - removed the 'layout' qualifier from the uniform buffer declaration. It's not really needed because the layout of a single vec4 array cannot possibly change, and Intel drivers are complaining for unknown reasons. 2014-09-20 09:10:01 +02:00
Christoph Oelckers
acf6c259d8 - changed the handling of alpha textures. The only special case they need is with palette-less textures and this can be handled far more easily and robustly with a predefined translation instead of passing another parameter through all the layers of the texture management code. This also fixes problems with paletted PNGs that get used as an alpha texture because the old method clobbered the image's palette. 2014-09-09 13:21:36 +02:00
Christoph Oelckers
d5633701b4 - swapped order of textures in burn shader to avoid some problems with the texture samplers. 
- fixed: texture sampler state for the burn texture was never set.
 2014-09-09 10:17:44 +02:00
Christoph Oelckers
b96dd6c421 - fixed: The missing fourth component of the texture coordinate must be filled with 1.0, not 0.0 before applying the texture matrix. Not doing so will cancel out the translation part of the matrix. 2014-09-02 10:31:48 +02:00
Christoph Oelckers
a8e9c1832f - decided to restrict the 2.0 beta to OpenGL 4.x with GL_ARB_buffer_storage extension and removed all code for supporting older versions. 
Sadly, anything else makes no sense.
All the recently made changes live or die, depending on this extension's presence.
Without it, there are major performance issues with the buffer uploads. All of the traditional buffer upload methods are without exception horrendously slow, especially in the context of a Doom engine where frequent small updates are required.
It could be solved with a complete restructuring of the engine, of course, but that's hardly worth the effort, considering it's only for legacy hardware whose market share will inevitably shrink considerably over the next years.
And even then, under the best circumstances I'd still get the same performance as the old immediate mode renderer in GZDoom 1.x and still couldn't implement the additions I'd like to make.

So, since I need to keep GZDoom 1.x around anyway for older GL 2.x hardware, it may as well serve for 3.x hardware, too. It's certainly less work than constantly trying to find workarounds for the older hardware's limitations that cost more time than working on future-proofing the engine.

This new, trimmed down 4.x renderer runs on a core profile configuration and uses persistently mapped buffers for nearly everything that is getting transferred to the GPU. (The global uniforms are still being used as such but they'll be phased out after the first beta release.
 2014-08-01 22:42:39 +02:00
Christoph Oelckers
7967082e60 - use the light buffer to handle dynamic lighting. 2014-08-01 20:59:39 +02:00
Christoph Oelckers
ef8f66c9a1 - removed the code for hardware alpha testing again because it didn't work anymore with how things are set up now. 
- we need to check all GL versions when trying to get a context because some drivers only give us the version we request, leaving out newer features that are not exposed via extension.
- added some status info about uniform blocks.
 2014-07-30 23:13:16 +02:00