Build on Windows

[oUp2Uo]

Hi, I have tried to build on Windows successfully.

Just some small changes:

1. includes/render_utils.cuh

   GaussianRasterizationSettings raster_settings = {
   .image_height = static_cast<int>(viewpoint_camera.Get_image_height()),
   .image_width = static_cast<int>(viewpoint_camera.Get_image_width()),
   .tanfovx = std::tan(viewpoint_camera.Get_FoVx() * 0.5f),
   .tanfovy = std::tan(viewpoint_camera.Get_FoVy() * 0.5f),
   .bg = bg_color,
   .scale_modifier = scaling_modifier,
   .viewmatrix = viewpoint_camera.Get_world_view_transform(),
   .projmatrix = viewpoint_camera.Get_full_proj_transform(),
   .sh_degree = gaussianModel.Get_active_sh_degree(),
   .camera_center = viewpoint_camera.Get_camera_center(),
   .prefiltered = false};
   

   change to

   GaussianRasterizationSettings raster_settings;
       raster_settings.image_height = static_cast<int>(viewpoint_camera.Get_image_height());
       raster_settings.image_width = static_cast<int>(viewpoint_camera.Get_image_width());
       raster_settings.tanfovx = std::tan(viewpoint_camera.Get_FoVx() * 0.5f);
       raster_settings.tanfovy = std::tan(viewpoint_camera.Get_FoVy() * 0.5f);
       raster_settings.bg = bg_color;
       raster_settings.scale_modifier = scaling_modifier;
       raster_settings.viewmatrix = viewpoint_camera.Get_world_view_transform();
       raster_settings.projmatrix = viewpoint_camera.Get_full_proj_transform();
       raster_settings.sh_degree = gaussianModel.Get_active_sh_degree();
       raster_settings.camera_center = viewpoint_camera.Get_camera_center();
       raster_settings.prefiltered = false;
   

2. src/parameters.cu

   std::filesystem::path executablePath = std::filesystem::canonical("/proc/self/exe");
   std::filesystem::path parentDir = executablePath.parent_path().parent_path();
   std::filesystem::path json_path = parentDir / "parameter/optimization_params.json";
   

   could not run correctly on WIndows. Temporarily, we could just write a fixed path.

3. CMakeLists.txt

   In target_link_libraries(${PROJECT_NAME} section, add ${PYTHON_LIBRARIES}

But my graphic card could not run the program now, I would try to find another computer to run this.

[MrNeRF]

Yeah, bullet point 2 needs something windows specific.
Feel free to create a pull request when you got it running. If it does not break the linux build, I gonna merge it :)

[oUp2Uo]

I have tried on another PC, and could run with the change I mentioned.
And still I do not know how to fix the path problem (I just use a fixed path now).

[oUp2Uo]

Or maybe just add cmake post-build command to copy the parameter file to the build folder.
Then there will be no need to get the base folder path.