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Multiplying by inverse matrices?

开发者 https://www.devze.com 2022-12-13 12:32 出处:网络
If I have a matrix which is a combination of WorldViewProjection and I multiply it by the inverse of the projection does it yield the WorldView matrix or something else? If not then how can I extract

If I have a matrix which is a combination of WorldViewProjection and I multiply it by the inverse of the projection does it yield the WorldView matrix or something else? If not then how can I extract the WorldView matrix from a WorldViewProjection matrix?

开发者_开发技巧Thanks for any help :)


If you multiply on the right by the inverse of Projection, you will get World*View.

If you multiply on the left you'll get something entirely different, since matrix multiplication isn't commutative.

This assumes that Projection has an inverse. Not all matrices do.

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