gl3w has merged a PR, which helps downloading the files. Maybe you can update the dependency?

Shader cross-platform issue

I can't run the programs due to shader compile errors.
It turns out that some function signatures used in the shaders do not exist in the GLSL standard.

• textureLod(sampler2DArrayShadow, vec4, int): This one can be fixed by adding #extension GL_EXT_texture_shadow_lod : require directive to the next line of #version. Found at

  StratusGFX/Source/Shaders/pbr.glsl

  Line 126 in 6a93798

  return textureLod(shadow, coords, 0);

• textureSize(sampler2DRect, int): I don't know how to fix it yet. Found at

  StratusGFX/Source/Shaders/atmospheric_postfx.fs

  Line 20 in 6a93798

  vec2 widthHeight = textureSize(atmosphereBuffer, 0).xy;

Here are the specifications of the functions mentioned above:

• textureLod: https://registry.khronos.org/OpenGL-Refpages/gl4/html/textureLod.xhtml
• textureSize: https://registry.khronos.org/OpenGL-Refpages/gl4/html/textureSize.xhtml

Environment

OS: Linux
API: OpenGL v: 4.6 Mesa 22.3.7
Renderer: AMD Radeon RX 580 Series

Hi, just trying to build it now and, after following the previous steps listed in the REAME file without errors, I get to cmake .. with this result:

cmake --build . -j 8 --config RelWithDebInfo
-- The C compiler identification is GNU 10.2.1
-- The CXX compiler identification is GNU 10.2.1
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Found OpenGL: /usr/lib/libOpenGL.so   
Linux
/usr/lib/libOpenGL.so/usr/lib/libGLX.so/usr/lib/libGLU.sopthreaddlz
StratusEngine
CMake Error at Tests/CMakeLists.txt:20 (include):
  include could not find requested file:

    /tmp/ramdisk/StratusGFX/Tests/..//ThirdParty/lib/cmake/Catch2/Catch.cmake


CMake Error at Tests/UnitTests/CMakeLists.txt:25 (catch_discover_tests):
  Unknown CMake command "catch_discover_tests".


-- Configuring incomplete, errors occurred!
See also "/tmp/ramdisk/StratusGFX/build/CMakeFiles/CMakeOutput.log".
make: Makefile: No such file or directory
make: *** No rule to make target 'Makefile'.  Stop.

CMake is version 3.25.0, which one is the one it was been tested with?

This is an unusual system, PowerPC CPU and Void Linux, so I do not expect you to find a solution, just to document the situation.
If there is some simple test I could do, please let me know.

Edit: that file exists, it’s just under a directory called lib64 insted of lib, I do not know why but I’ve seen similar problems before:

$ find .. -name Catch.cmake
../ThirdParty/lib64/cmake/Catch2/Catch.cmake
../Catch2/extras/Catch.cmake