Add XMVector[3/4]TransformTranspose(Stream)
Nobody has claimed this yet.
Assessment
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Newbie friendliness
- 38/100
- Issue type
- Feature
- Clarity
- Mostly clear
- Activity status
- Stale
- Tech stack
- cpp
- Domain
- computer-graphics
Research direction
Start with the four requested entry points: XMVector3TransformTranspose, XMVector4TransformTranspose, XMVector3TransformTransposeStream, and XMVector4TransformTransposeStream, using the transpose formulas in the issue as the behavioral reference. The payload names no source file or test; done means providing optimized implementations for all four functions and validating their transposed-matrix results.
Written by the indexing model from the issue text.
Description
DirectXMath has a number of different forms of transformation, but currently lacks an optimized function for doing transforms by transposed matrices:
XMVector3TransformTransposeXMVector4TransformTransposeXMVector3TransformTransposeStreamXMVector4TransformTransposeStream
This would compute:
v * M = [dot(vx, Mx), dot(vy, My), dot(vz, Mz), dot(vw, Mw)]
v * M^T = mul(v, Mx) + mul(v, My) + mul(v, Mz) + mul(v, Mw)
- Dominant language
- C++
- Stars
- 1.8k
- Forks
- 262
- Avg merge
- 3d 12h
- Merged PRs (30d)
- 5
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
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