I need to solve the problem because my particle system has the local space simulation mode and the world space simulation mode ( I think most of the game engines should have these two modes ). When using the world space simulation mode, each particle will not take consider of the emitter's transformation after it spawned. So I can't use vertex shader to do this job.
So if i am using the column major matrix, I only need to change the index to make the code snippet work, right?
I also noticed that there have some other algorithms to decompose a matrix ( SVD, QR algorithm ). So when should I to use these algorithms?
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