3DGS PR 3: compute-infra: GPU compute shader infrastructure (Vulkan/Metal/GL interop)#7487
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ssheorey wants to merge 4 commits into
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3DGS PR 3: compute-infra: GPU compute shader infrastructure (Vulkan/Metal/GL interop)#7487ssheorey wants to merge 4 commits into
ssheorey wants to merge 4 commits into
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Thanks for submitting this pull request! The maintainers of this repository would appreciate if you could update the CHANGELOG.md based on your changes. |
…ling - Add AGENTS.md with coding and PR review guidelines - GLEW upgraded to v2.3.1 (adds GL_EXT_memory_object, GL_EXT_semaphore for Vulkan-OpenGL interop needed by Gaussian splatting) - Filament version bump for shared-context platform header support - Style tooling: check_style.py and check_cpp_style.cmake updated for .comp (GLSL compute) and .mm (Objective-C++) file handling
… transforms - t::PointCloud: IsGaussianSplat(), Rotate/Scale/Translate/Transform for GS attributes (positions, quaternion rotations, linear scales, DC/SH coefficients) - Ivanic-Ruedenberg SH rotation algorithm for f_rest attributes (degrees 1-3) - Point inversion parity handling for odd-degree SH blocks - PLY IO (legacy + tensor): read/write GS attributes (pos, rot, scale, opacity, f_dc, f_rest); exponentiate log-scales from PLY files at load time - SPLAT file IO: linear scales, packed quaternions, rgb8 DC color - FileFormatIO: register .splat extension - MaterialRecord: add GS-specific render flags (sh_degree, antialias, etc.) - Renderer/View: virtual interface additions for GS output queries
…erop) Third-party additions: - vkmemalloc: Vulkan Memory Allocator (VMA) for device-local buffer allocation - vulkan_headers: Khronos Vulkan headers - find_dependencies.cmake: add Vulkan + vkmemalloc package discovery - cmake/Open3DAddComputeShaders.cmake: compile GLSL .comp -> SPIR-V (glslc) and cross-compile to MSL (spirv-cross) for Apple; installs to resources/ cpp/open3d/CMakeLists.txt: link OpenGL::EGL and X11 for the GL shared-context backend on Linux/Windows. New source files (wired into the build in the next PR): - ComputeGPU.h: ComputeProgramId enum, GaussianSplatGpuContext abstract base, GpuComputeFrame/GpuComputePass RAII helpers - ComputeGPUVulkan: headless Vulkan instance + device, SSBO/UBO binding, command buffer lifecycle, fence-based geometry sync - ComputeGPUMetal.mm: Metal GaussianSplatGpuContext implementation - GaussianSplatOpenGLContext: GLFW-owned GL 4.6 helper window for shared-context creation (GLX on Linux, WGL on Windows) before Engine::create() - GaussianSplatVulkanInteropContext: exports VkImage memory to OpenGL via GL_EXT_memory_object for zero-copy Filament-Vulkan texture sharing
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Motivation and Context
Checklist:
python util/check_style.py --applyto apply Open3D code styleto my code.
updated accordingly.
results (e.g. screenshots or numbers) here.
Description
Third-party additions:
and cross-compile to MSL (spirv-cross) for Apple; installs to resources/
cpp/open3d/CMakeLists.txt: link OpenGL::EGL and X11 for the GL shared-context
backend on Linux/Windows.
New source files (wired into the build in the next PR):
GpuComputeFrame/GpuComputePass RAII helpers
command buffer lifecycle, fence-based geometry sync
creation (GLX on Linux, WGL on Windows) before Engine::create()
GL_EXT_memory_object for zero-copy Filament-Vulkan texture sharing