meshoptimizer
glTF-Transform
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| meshoptimizer | glTF-Transform | |
|---|---|---|
| 12 | 3 | |
| 4,969 | 1,237 | |
| - | - | |
| 9.0 | 9.5 | |
| 8 days ago | 4 days ago | |
| C++ | TypeScript | |
| MIT License | MIT License |
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meshoptimizer
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Nanite-like LODs experiments
1) I used meshoptimizer to simplify meshes and building meshlets. But to combine these meshlets (for more efficient simplifying) I built a graph with weights and partition it. In this weight some metrics are included: the shared border length of a pair of meshlets, their facing direction and other similar metrics. The next step is to simplify these groups of meshlets (fixate borders for each of them and simplify meshlets within the group). So, you can make dependencies of newly generated meshlets on the initial ones.
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Will the same texture used in many gltfs be duplicated in memory?
Here are some amazing tools for compressing GLTFs: https://github.com/zeux/meshoptimizer/blob/master/gltf/README.md
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Maximum size of scene or a project in THREE.JS
I've also had good results with this tool: https://github.com/zeux/meshoptimizer/blob/master/gltf/README.md and kt2tdecoder + meshopt_decoder
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[Part 7] Update of my Vulkan renderer: LODs, Multiple different meshes, Memory Allocator, Render architecture and more
Implemented Mesh LOD system. LOD selection is done completely on GPU. I generate LODs using meshoptimizer.
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Given a mesh without indices, how I generate indices for that mesh and remove the duplicate vertices?
Maybe Meshoptimizer can be useful?
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[Part 4] Update of my Vulkan toy renderer: Mesh Shader Pipeline, Reversed-Z Depth Buffer, SPIRV-Reflect and many more
Added NVidia mesh shader pipeline support, with old pipeline still supported on top. Meshlets are generated using meshoptimizer.
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Algoritm to simplify geometric data similar to texture bitmapping
I've used the "Simplification" operation of meshoptimizer to simplify 3D model geometry: https://github.com/zeux/meshoptimizer
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help implementing LOD edge collapse algorithm
I call meshopt_simplify(). It uses a quadric error metric based mesh simplification of some sort. I haven't really looked into the details of how it works, but the code (with some comments referencing papers) can be found here: https://github.com/zeux/meshoptimizer/blob/master/src/simplifier.cpp
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what is the size of a mesh vertex
hi! i am building a game engine with c and raylib and i want to use this library for optimizing meshes : https://github.com/zeux/meshoptimizer
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Fast mesh decimation?
Have you considered this? https://github.com/zeux/meshoptimizer
glTF-Transform
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Will the same texture used in many gltfs be duplicated in memory?
and https://gltf-transform.donmccurdy.com/
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Memory limit for meshes
Is there any optimization being done on the model (KTX compression for the textures, DRACO compression on the mesh data, etc)? 210 MB is indeed a lot and I'm not sure there's any good way to be able to use that while keeping the scene renderable. You might want to look into glTF-Transform if you haven't already.
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Decreasing .glb file size
You can give https://github.com/donmccurdy/glTF-Transform a go.
What are some alternatives?
assimp - The official Open-Asset-Importer-Library Repository. Loads 40+ 3D-file-formats into one unified and clean data structure.
cgltf - :diamond_shape_with_a_dot_inside: Single-file glTF 2.0 loader and writer written in C99
CGal - The public CGAL repository, see the README below
model-viewer - 3D model viewer supporting glTF 2.0 and PLY (3d Gaussian Splats)
meshlab - The open source mesh processing system
model-browser - model-browser is a command line tool available on npm, for browsing local 3D models via a web browser. It currently only supports GLB files.
Open3D - Open3D: A Modern Library for 3D Data Processing
gltf-vscode - This is an extension for Visual Studio Code to add support for editing glTF files.
PhysicsFS - PhysFS++ is a C++ wrapper for the PhysicsFS library.
3d-model-convert-to-gltf - Convert 3d model (STL/IGES/STEP/OBJ/FBX) to gltf and compression
draco - Draco is a library for compressing and decompressing 3D geometric meshes and point clouds. It is intended to improve the storage and transmission of 3D graphics.
OpenPSG - Benchmarking Panoptic Scene Graph Generation (PSG), ECCV'22