Remove separate targets for classic and filament renderer.

The platform::Renderer now supports both implementations at
runtime.

PiperOrigin-RevId: 878427862
Change-Id: I2997c197c6eddbe177c77b435cc5848fd80f1839

src/experimental/studio/CMakeLists.txt

@@ -50,6 +50,7 @@ include(third_party_deps/font_awesome)
 target_link_libraries(${MUJOCO_STUDIO_TARGET_NAME}
     PRIVATE
         absl::flags
+        absl::flags_parse
         dear_imgui
         implot
         mujoco::mujoco

src/experimental/studio/README.md

@@ -32,18 +32,6 @@ If you intend to develop the application you may prefer to work from an IDE:
 * [Visual Studio](https://visualstudio.microsoft.com/). Follow these
   [instructions](https://learn.microsoft.com/en-us/cpp/build/cmake-projects-in-visual-studio?view=msvc-170).
 
-## Filament Rendering
-
-Studio uses legacy OpenGL rendering by default but there is an option to use
-Physically Based Rendering via [Filament](https://google.github.io/filament/Filament.md.html).
-To enable Filament you need to `-DMUJOCO_USE_FILAMENT=ON` during the cmake
-configuration step. The Filament renderer has multiple rendering backends,
-on Linux OpenGL is the default but Vulkan can be used by also providing
-the `-DMUJOCO_USE_FILAMENT_VULKAN=ON` option.
-
-Also note that you will need to run the application from the folder containing
-the executable so that the expected materials/assets can be found.
-
 ## Known Bugs
 
 * MuJoCo Studio does not yet work using Wayland on Linux, use X11 instead.

src/experimental/studio/build.sh

@@ -62,7 +62,6 @@ if [[ "$do_configure" == true ]]; then
         "-DUSE_STATIC_LIBCXX=OFF"
         "-DBUILD_SHARED_LIB=OFF"
         "-DMUJOCO_USE_FILAMENT=ON"
-        "-DMUJOCO_USE_FILAMENT_VULKAN=OFF"
         "-DMUJOCO_BUILD_EXAMPLES=OFF"
         "-DMUJOCO_BUILD_SIMULATE=OFF"
         "-DMUJOCO_BUILD_TESTS=OFF"

src/experimental/studio/main.cc

@@ -25,6 +25,7 @@
 #include <vector>
 
 #include <absl/flags/flag.h>
+#include <absl/flags/parse.h>
 #include <mujoco/mujoco.h>
 #include "experimental/platform/graphics_mode.h"
 #include "experimental/studio/app.h"
@@ -73,6 +74,7 @@ class FileResource {
 };
 
 int main(int argc, char** argv, char** envp) {
+  absl::ParseCommandLine(argc, argv);
 
   const char* home = getenv("HOME");
   const std::string ini_path = std::string(home ? home : ".") + "/.mujoco.ini";