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.397395619494580:d47dd55fb18e76a37faa5630df4a183c_69e6210c180bcf8a442e5ffe.69e626c1180bcf8a442e6059.69e626c0966af563bdeec98e:Trae CN.T(2026/4/20 21:14:41)#114

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.397395619494580:d47dd55fb18e76a37faa5630df4a183c_69e6210c180bcf8a442e5ffe.69e626c1180bcf8a442e6059.69e626c0966af563bdeec98e:Trae CN.T(2026/4/20 21:14:41)#114
yangou-hash wants to merge 2 commits intotaichi-dev:masterfrom
yangou-hash:ouyu_trae_2

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@yangou-hash yangou-hash commented Apr 20, 2026

Note

Medium Risk
Adds new force application logic into the MPM simulation loop via grid_postprocess, which can change physics outcomes and stability. Also vendors large third-party packages under local_packages, increasing repo size and potential dependency/packaging issues.

Overview
Adds a new MPMSolver.add_wind_field() hook that applies a constant force to grid nodes within an axis-aligned bounding box each substep (via an appended grid_postprocess Taichi kernel).

Updates the demo_3d.py demo to run on CPU, load vendored local_packages, and showcase the new wind field; adds demo/test_wind_field.py to exercise and print basic before/after particle drift expectations.

Vendors additional third-party tooling and libraries under local_packages (notably colorama and dill, plus bin/ helper scripts).

Reviewed by Cursor Bugbot for commit cc2c936. Bugbot is set up for automated code reviews on this repo. Configure here.

实现风场效果功能,允许在特定区域内施加风力。新增add_wind_field方法,通过指定区域边界和风力向量来创建风场效果,并在网格后处理阶段应用风力影响。
本次提交新增了多个Python包和工具模块,包括numpy、taichi、rich、markdown_it等核心库及其相关依赖。主要包含以下内容:

1. 新增numpy核心库及其类型检查、测试工具
2. 添加taichi图形计算框架及其UI、数学、线性代数模块
3. 引入rich终端格式化输出库
4. 集成markdown_it Markdown解析器
5. 包含colorama、pygments等辅助工具
6. 添加各类测试用例和示例代码
7. 完善构建配置和文档说明

这些新增内容为项目提供了强大的科学计算、图形渲染和文档处理能力。
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Cursor Bugbot has reviewed your changes and found 2 potential issues.

Fix All in Cursor

Reviewed by Cursor Bugbot for commit cc2c936. Configure here.

print (__doc__[-491:-118])
return

# end of file
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Vendored third-party packages committed to repository

Medium Severity

The entire local_packages/ directory containing full third-party Python packages (colorama, dill, and their metadata, tests, and scripts) is committed to the repository. The bin/ scripts contain a machine-specific Windows shebang (#!E:\ProgramFiles\Anaconda\python.exe). These dependencies belong in requirements.txt or a virtual environment rather than vendored into source control.

Additional Locations (2)
Fix in Cursor Fix in Web

Reviewed by Cursor Bugbot for commit cc2c936. Configure here.

Comment thread demo/demo_3d.py
# Try to run on GPU
ti.init(arch=ti.cuda, device_memory_GB=4.0)
# Try to run on CPU (for testing)
ti.init(arch=ti.cpu)
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Demo switched from GPU to CPU for testing

Medium Severity

The ti.init call was changed from ti.cuda with device_memory_GB=4.0 to ti.cpu, and the comment explicitly says "for testing." A 3D MPM simulation running 1500 frames on CPU will be orders of magnitude slower than on GPU, making this demo effectively unusable for its intended purpose.

Fix in Cursor Fix in Web

Reviewed by Cursor Bugbot for commit cc2c936. Configure here.

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