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172 commits

Author SHA1 Message Date
Christoph Oelckers
f743b22661 - render voxels as triangles instead of quads. 
Quads are not available in the core profile which is required to run GL 3.3 on macOS.
 2020-01-03 18:09:05 +01:00
Christoph Oelckers
ce75832945 - color and depth func moved to render state. 2020-01-03 11:43:44 +01:00
Christoph Oelckers
27ed6cdae5 - viewport and scissor moved to render state. 2020-01-03 10:48:22 +01:00
Christoph Oelckers
cfc0ba48cb - moved render style handling to the render state and simplified its storage to use FRenderStyle instead of its components. 2020-01-03 10:48:22 +01:00
Christoph Oelckers
3380420de9 - converted the clear screen commands. 2020-01-02 23:56:35 +01:00
Christoph Oelckers
3608a646e6 - converted the simple state settings into renderstate flags. 2020-01-02 23:34:21 +01:00
Christoph Oelckers
6156e7382a - preparation for moving GL state into the renderstate struct. 2020-01-02 23:15:16 +01:00
Christoph Oelckers
7ec8368688 - used the wrong formula to calculate shadeDiv. 2020-01-01 11:49:32 +01:00
Christoph Oelckers
3d47652d08 - had a look at Exhumed's shade tables and implemented the necessary adjustments for the 3 with abnormal gradients. 2019-12-31 22:53:03 +01:00
Christoph Oelckers
1890df98f9 - process lines through the 2D drawer. 2019-12-31 19:02:55 +01:00
Christoph Oelckers
ad24a1ce31 - place weapon sprites in a separate render list. 
They need to be drawn in a different pass than the 2D overlay HUD so the backend must have them separately.
 2019-12-30 20:16:51 +01:00
Christoph Oelckers
5830e72ab0 - fixed some rotatesprite issues: 
* scissor was not applied
* texture coordinates were fetched from the wrong texture, courtesy of using global variables.
 2019-12-30 19:37:23 +01:00
Christoph Oelckers
6459f4e532 - refactored rotatesprite to really use the 2D drawer. 
Mostly working, except clipping and weapon sprites.
 2019-12-30 19:37:23 +01:00
Christoph Oelckers
737bf15ad8 - added GZDoom's postprocessing/presentation code. 
Compiles but only draws a black screen. Something must be missing but no idea yet what that might be.
 2019-12-28 22:36:47 +01:00
Christoph Oelckers
62e9112133 - renamed the internal resource directory to "engine" and routed most literal mentions of the engine name through version.h 
All this comes from a time when I didn't use version.h so it's better to do it the same way as GZDoom to allow easy renaming of the engine.
 2019-12-26 14:04:53 +01:00
Christoph Oelckers
3b98635170 - removed all remaining references to SDL. The Windows version is now fully native. 2019-12-23 20:03:03 +01:00
Christoph Oelckers
62ecedf1f8 - got it to the point where it can render to the GL surface from the native backend. 2019-12-23 19:37:40 +01:00
Christoph Oelckers
a1f7f0cc30 - added the GL framebuffer class. 
Everything compiles again but obviously no init code will run for now.
 2019-12-23 15:40:17 +01:00
Christoph Oelckers
30cbcb54b1 - renamed the remaining file system access wrappers in cache1d.h 2019-12-07 10:31:27 +01:00
Christoph Oelckers
749eda32c5 - moved kopenfilereader into the FileSystem class. 2019-12-07 10:14:51 +01:00
Christoph Oelckers
b3b5ac440a - fixed Blood fullscreen tinting. 
The lookup table for blend equations was missing one entry at the start. No idea why this became apparent only now.
 2019-11-24 19:07:23 +01:00
Christoph Oelckers
dc60c7f72e - fixed use of brightmaps. 
Due to the blending they are essentially inactive on translucent content and Duke Nukem heavily abuses this.
 2019-11-15 20:51:02 +01:00
Christoph Oelckers
5fc81d1bd4 - made brightmaps operational. 
The logic is not yet optimal but at least it works.
 2019-11-10 19:42:26 +01:00
Christoph Oelckers
cae710bd59 - fixed alpha threshold. 
Not only is this a deprecated feature - it also does not work right when complex lighting is at play, it must be done in the shader to get proper results.
 2019-11-10 10:01:31 +01:00
Christoph Oelckers
0f74a5c3a4 - make the ImGui popup close on request. 2019-11-09 14:05:52 +01:00
Christoph Oelckers
2d46827ecc font 
- Dear ImGUI test.
 2019-11-07 20:32:49 +01:00
Christoph Oelckers
b6a3a60251 - console output is functional. 2019-11-06 23:40:10 +01:00
Christoph Oelckers
de829128ea - hooked up the 2D drawer 
compiles but not tested yet.
 2019-11-05 23:35:38 +01:00
Christoph Oelckers
1ee4efebb0 - fixed compilation. 2019-11-04 17:58:18 +01:00
Christoph Oelckers
1e0d49f947 - game starts again. 2019-10-26 13:16:32 +02:00
Christoph Oelckers
5cf5c74695 - let kopenFileReader have a look into demolition.pk3 if nothing else is found. 
This should help as long as the old resource management is still in place.
 2019-10-25 02:01:52 +02:00
Christoph Oelckers
85d377647a - tweaked the fade ramp a bit. 
For Duke Nukem and its direct offspring (Nam, WW2GI and Redneck Rampage) the ramp is not a linear fade from 0 to 1, it needs to be a little darker than that.
Unfortunately the proper factor needed here must be set manually, this cannot really be calculated from the lookup tables.
 2019-10-20 01:14:48 +02:00
Christoph Oelckers
7d2f61db2e - converted all boolean parameters of the shader into a single flag word. 
- discarded the idea of transient palettes because the maintenance here stood in no relation to the savingd.
 2019-10-19 22:46:37 +02:00
Christoph Oelckers
39e32d560c - fixed progdir setup. 2019-10-19 19:22:23 +02:00
Christoph Oelckers
2152780806 - added some hackery to render voxels properly again. 
Something about their data preparation is not right, their depth looks totally off and causes fog to become to dense.
One more reason to reconstruct the renderer in a sane fashion.
 2019-10-19 18:14:13 +02:00
Christoph Oelckers
cd7bbe35a8 - removed all legacy fog code. 2019-10-19 15:52:46 +02:00
Christoph Oelckers
4a9f0248d7 - removed the texture ID cache. 
Although this initially helped, it was only because it partially covered up the issues from the real problem which was using the sampler properties of the texture offsets.
With that one fixed this cache became pointless.
 2019-10-19 10:40:47 +02:00
Christoph Oelckers
dab7c43f7c - fixed all compiler errors. 
It mostly works again, but still has a few glitches.
 2019-10-18 19:06:57 +02:00
Christoph Oelckers
23265ad213 - rework of texture management for models 
Voxels yet to do.
This also removes the redundant texture matrix for the glow texture.
 2019-10-18 14:04:32 +02:00
Christoph Oelckers
3da49ad20a - safety commit: all relevant code for the texturing system has been moved to texcache.cpp. 2019-10-17 21:44:34 +02:00
Christoph Oelckers
bef8c9ae76 - hictinting cleanup. 
This needs to be moved into the backend, and partially into the shader. So far this only removes the code from the main rendering logic, the final implementation is not done yet.
It had to go because it required the main rendering code to look deep into the texture data which would be a major blocker for refactoring.
 2019-10-17 20:29:58 +02:00
Christoph Oelckers
304a906aa7 copy code 2019-10-17 14:21:51 +02:00
Christoph Oelckers
4f8e0dd936 - cleaned up a few copyright notices and unified licenses 2019-10-17 09:42:11 +02:00
Christoph Oelckers
c588cd499a - let GLInstance::Draw set the palette indexing mode. 
This can be trivially decided based on the texture type, so there's really no need to let the higher level code deal with this.
 2019-10-10 23:14:57 +02:00
Christoph Oelckers
fbc7e626e9 - removed the fullbright render pass, because this is better set up as a shader option. 
- also removed the legacy fog modes because their implementation did not mix well with the texture system - they are also not really useful to begin with.

The last fog mode will most likely also be removed once true color shading is working but that one is less of an issue.
 2019-10-10 21:05:10 +02:00
Christoph Oelckers
1407c18f8b - cleaned out some remains of the non-indexed render path. 
All of this will be redone in the backend.
 2019-10-10 19:40:33 +02:00
Christoph Oelckers
c428e367a0 - hotfix for texture filter settings. 
This needs to be done differently later to choose the proper clamp setting.
 2019-10-10 19:16:27 +02:00
Christoph Oelckers
1fee7a5f01 - cleanup of texture creation code. 
There were several mostly pointless options complicating all of this.
 2019-10-10 00:07:45 +02:00
Christoph Oelckers
7131fe6c6e - use separate textures for the palswap shade tables. 
This creates a lot less mess than one big texture and also allows easier use of texelFetch in the server which is preferable for data textures.
 2019-10-08 01:08:08 +02:00
Christoph Oelckers
dfaa162bb2 - finished the palswap handling in the palette manager. 2019-10-07 22:11:09 +02:00
Christoph Oelckers
7713860b63 wip. 2019-10-07 00:14:16 +02:00
Christoph Oelckers
734d8b7d1e - moved the palette management into the backend. 2019-10-06 21:15:53 +02:00
Christoph Oelckers
ef2de97077 - the harmless changes of the failed refactoring of the shader. 2019-10-06 19:32:35 +02:00
Christoph Oelckers
cf30f5560b - upgraded the polymost fragment shader to GLSL 3.3 as well, removing all legacy features from it. 
The only compatibility mode feature left is the main drawer function using glBegin/glEnd but changing that is not as urgent as the rest.
This also cleans up the fog application and adds the exponential fog mode again that somehow got lost over time.
 2019-10-06 12:42:35 +02:00
Christoph Oelckers
3d538b4c8f - use explicit vertex attributes for everything. 
No more glVertex, glTexCoord or glColor calls anywhere.
 2019-10-06 10:46:23 +02:00
Christoph Oelckers
71d132b470 - use explicitly declared matrix uniforms. 
The builtin matrices are no longer available in modern GLSL, preventing an upgrade of the shader.
Also perform better reporting of shader compilation errors.
 2019-10-06 10:19:51 +02:00
Christoph Oelckers
3fb5154dc9 - make it work again. 2019-10-05 14:17:59 +02:00
Christoph Oelckers
3c193bb243 - moved the animvpx shader to the backend code. 
This removes the final access to OpenGL from the rest of the source, with the exception of the glFinish call in the swap code.
 2019-10-05 13:38:02 +02:00
Christoph Oelckers
b83349fe6b - moved the surface shader to the backend and the shader source to the resource file. 2019-10-05 13:09:15 +02:00
Christoph Oelckers
bd4e4834e3 - moved the main shader and its entire uniform maintenance into the backend. 2019-10-05 12:28:08 +02:00
Christoph Oelckers
d058084c10 - added an engine resource file. 
Currently this only contains the main Polymost shaders and the resources from nblood.pk3.
The latter cannot be used yet because the Build resource management system is too stubborn to add the newly added file without some changes.
It's better to refactor the entire system instead.
 2019-10-04 23:29:00 +02:00
Christoph Oelckers
ae1e090716 - all non-shader related GL calls are gone from the main code base. 2019-10-04 21:13:04 +02:00
Christoph Oelckers
f992aebf33 - two more 2019-10-04 19:17:55 +02:00
Christoph Oelckers
cb80e877ff - refactored fog and depth func setting into GLInterface. 2019-10-04 18:44:16 +02:00
Christoph Oelckers
204abab724 glColor calls refactored. 2019-10-04 18:25:18 +02:00
Christoph Oelckers
96c0c3197c - abstracted away more OpenGL calls, in particular all matrix access. 2019-10-04 18:12:03 +02:00
Christoph Oelckers
ad4527c8be - initialize the GL backend in the proper place. 
As long as there are still video mode switches this needs to be in the video mode switching function.
 2019-09-23 23:33:59 +02:00
Christoph Oelckers
e0f823a492 - refactored texture setup to use an intermediate layer. 2019-09-18 22:16:15 +02:00
Christoph Oelckers
b1763a8f4a - hooked up the texture management. 
Not in active use yet!
 2019-09-17 19:03:42 +02:00
Christoph Oelckers
2b439ae181 - work on backend 2019-09-16 23:28:26 +02:00
Christoph Oelckers
9edf6be10d - texture sampler class added, not used yet. 2019-09-16 22:56:48 +02:00
Christoph Oelckers
318009fd69 - added a centralized drawer and converted the main geometry drawer to use it. 2019-09-16 19:35:04 +02:00