stripe2933 / mouse-picking

Pixel-perfect mouse picking with OpenGL stencil buffer.

mouse-picking

Pixel-perfect mouse picking with OpenGL stencil buffer. If you want another mouse picking example with custom FBO + instancing, see instancing branch. It unlimits the available object count in this branch (255 at max).

• If you want another mouse picking example with custom FBO + instancing, see instancing branch. It unlimits the available object count in this branch (255 at max).
• If you want to see the same work implemented in Vulkan, see here.

running-video.mp4

Build

git clone https://github.com/stripe2933/mouse-picking.git
cd mouse-picking
mkdir build
# You may don't need to specify CMAKE_TOOLCHAIN_FILE if you already have all dependencies.
cmake -S . -B build -DCMAKE_TOOLCHAIN_FILE=$VCPKG_ROOT/scripts/buildsystems/vcpkg.cmake
cmake --build build --config Release
./build/mouse_picking

Dependencies

• fmt
• range-v3
• imgui
• imguizmo
• OGLWrapper - gl3w, glfw, glm, stb_image, eventpp