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Merged
MrMilenko merged 1 commit into from
Nov 13, 2026
Merged

Keep every renderer while raising OpenGL to 3.3 #91

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6 changes: 3 additions & 3 deletions .github/workflows/build.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -107,7 +107,7 @@ jobs:
cd theseus/third-party/bgfx
../bx/tools/bin/linux/genie --gcc=linux-gcc gmake
make -C .build/projects/gmake-linux-gcc -j$(nproc) \
bx bimg bgfx config=release64 CXXFLAGS=-DBGFX_CONFIG_RENDERER_OPENGL=33
bx bimg bgfx config=release64 CXXFLAGS=-DBGFX_CONFIG_RENDERER_OPENGL_MIN_VERSION=33

- name: Build libdatachannel
# See the macOS job: no lib means xCloud quietly compiles out.
Expand Down Expand Up @@ -175,7 +175,7 @@ jobs:
find .build/projects/gmake-linux-gcc -name '*.make' -exec \
sed -i -e 's/-m64//g' -e 's/-mfpmath=sse//g' -e 's/-msse4.2//g' {} +
make -C .build/projects/gmake-linux-gcc -j$(nproc) \
bx bimg bgfx config=release64 CXXFLAGS=-DBGFX_CONFIG_RENDERER_OPENGL=33
bx bimg bgfx config=release64 CXXFLAGS=-DBGFX_CONFIG_RENDERER_OPENGL_MIN_VERSION=33

- name: Build libdatachannel
# See the macOS job: no lib means xCloud quietly compiles out.
Expand Down Expand Up @@ -282,7 +282,7 @@ jobs:
make -C .build/projects/gmake-mingw-gcc -j$(nproc) \
bx bimg bgfx config=release64 \
CC=x86_64-w64-mingw32-gcc CXX=x86_64-w64-mingw32-g++ \
CXXFLAGS=-DBGFX_CONFIG_RENDERER_OPENGL=33
CXXFLAGS=-DBGFX_CONFIG_RENDERER_OPENGL_MIN_VERSION=33

- name: Fetch mingw deps (openssl, opus, ffmpeg)
# OpenSSL and opus come prebuilt from MSYS2; ffmpeg is built here,
Expand Down
6 changes: 3 additions & 3 deletions .github/workflows/release.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -213,7 +213,7 @@ jobs:
cd theseus/third-party/bgfx
../bx/tools/bin/linux/genie --gcc=linux-gcc gmake
make -C .build/projects/gmake-linux-gcc -j$(nproc) \
bx bimg bgfx config=release64 CXXFLAGS=-DBGFX_CONFIG_RENDERER_OPENGL=33
bx bimg bgfx config=release64 CXXFLAGS=-DBGFX_CONFIG_RENDERER_OPENGL_MIN_VERSION=33

- name: Build libdatachannel
# See the macOS job: no lib means xCloud quietly compiles out.
Expand Down Expand Up @@ -343,7 +343,7 @@ jobs:
find .build/projects/gmake-linux-gcc -name '*.make' -exec \
sed -i -e 's/-m64//g' -e 's/-mfpmath=sse//g' -e 's/-msse4.2//g' {} +
make -C .build/projects/gmake-linux-gcc -j$(nproc) \
bx bimg bgfx config=release64 CXXFLAGS=-DBGFX_CONFIG_RENDERER_OPENGL=33
bx bimg bgfx config=release64 CXXFLAGS=-DBGFX_CONFIG_RENDERER_OPENGL_MIN_VERSION=33

- name: Build libdatachannel
# See the macOS job: no lib means xCloud quietly compiles out.
Expand Down Expand Up @@ -497,7 +497,7 @@ jobs:
make -C .build/projects/gmake-mingw-gcc -j$(nproc) \
bx bimg bgfx config=release64 \
CC=x86_64-w64-mingw32-gcc CXX=x86_64-w64-mingw32-g++ \
CXXFLAGS=-DBGFX_CONFIG_RENDERER_OPENGL=33
CXXFLAGS=-DBGFX_CONFIG_RENDERER_OPENGL_MIN_VERSION=33

- name: Fetch mingw deps (openssl, opus, ffmpeg)
# OpenSSL and opus come prebuilt from MSYS2; ffmpeg is built here,
Expand Down
6 changes: 3 additions & 3 deletions docs/desktop/building.md
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Original file line number Diff line number Diff line change
Expand Up @@ -42,16 +42,16 @@ make -C .build/projects/gmake-osx-arm64 -j$(sysctl -n hw.ncpu) bx bimg bgfx conf
# Linux
../bx/tools/bin/linux/genie --gcc=linux-gcc gmake
make -C .build/projects/gmake-linux-gcc -j$(nproc) bx bimg bgfx config=release64 \
CXXFLAGS=-DBGFX_CONFIG_RENDERER_OPENGL=33
CXXFLAGS=-DBGFX_CONFIG_RENDERER_OPENGL_MIN_VERSION=33

# Windows, cross from Linux
../bx/tools/bin/linux/genie --gcc=mingw-gcc gmake
make -C .build/projects/gmake-mingw-gcc -j$(nproc) bx bimg bgfx config=release64 \
CC=x86_64-w64-mingw32-gcc CXX=x86_64-w64-mingw32-g++ \
CXXFLAGS=-DBGFX_CONFIG_RENDERER_OPENGL=33
CXXFLAGS=-DBGFX_CONFIG_RENDERER_OPENGL_MIN_VERSION=33
```

The OpenGL renderer needs `BGFX_CONFIG_RENDERER_OPENGL=33`. Without it bgfx targets OpenGL 2.1, compiles the shaders as GLSL 1.20, and strict drivers reject them, which leaves a black screen and then a crash.
The OpenGL renderer needs `BGFX_CONFIG_RENDERER_OPENGL_MIN_VERSION=33`. Without it bgfx targets OpenGL 2.1, compiles the shaders as GLSL 1.20, and strict drivers reject them, which leaves a black screen and then a crash.

Always give `-j` a number. A bare `-j` starts every compile at once, and on a small machine that runs it out of memory and can freeze the whole desktop. If a low RAM machine with no swap still struggles, use a smaller number than the core count. The same goes for every `make` and `cmake --build` below.

Expand Down
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