Community
Bifrost Forum
Welcome to the Bifrost Forum. This is the place for artists using Bifrost to ask and answer questions, browse popular topics, and share knowledge about creating effects procedurally using Bifrost. You can also visit the Bifrost Community on AREA to download an array of ready-to-use graphs, read Bifrost news and updates, and find the latest tutorials.
cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

Matrices in Maya explained!

6 REPLIES 6
SOLVED
Reply
Message 1 of 7
Christoph_Schaedl
840 Views, 6 Replies

Matrices in Maya explained!

Loic Pinsard explaining matrices in maya. 

Good to know if you use Bifrost.

 

https://loicpinsard.netlify.app/matrices-explained-part-one

----------------------------------------------------------------
https://linktr.ee/cg_oglu
6 REPLIES 6
Message 2 of 7

Thanks for posting that link. One thing to keep in mind, though, is that Maya uses row vectors while Bifrost uses column vectors. This means that matrices are transposed (flipped along the main diagonal from top left to bottom right) so the translation is in the last column and projection is in the bottom row. In addition, it means that multiplication is performed in reverse order as compared to when using row vectors.

 

Note that matrices are automatically transposed when input or output to the scene, so you don't need to worry about transposing it yourself. However, you do need to remember which convention is used where.

 

Cheers,

gray


Grahame Fuller
Learning Content Developer
Message 3 of 7

Thanks for the additional info Grahame.

Is this somehow documented in the Bifrost Docs?

----------------------------------------------------------------
https://linktr.ee/cg_oglu
Message 4 of 7

Indeed it is: Work with matrices and transforms.

 

Cheers,

gray


Grahame Fuller
Learning Content Developer
Message 5 of 7

My little Artist brain is now exploding.

Could you translate this image from a Maya Matrice to Bifrost.

My Brain does work with images. 😄

 

Mayama.JPG

----------------------------------------------------------------
https://linktr.ee/cg_oglu
Message 6 of 7

Does this help?

 

Bifrost-matrix.JPG

 

gray


Grahame Fuller
Learning Content Developer
Message 7 of 7

Yes, thats readable for my brain!

----------------------------------------------------------------
https://linktr.ee/cg_oglu

Can't find what you're looking for? Ask the community or share your knowledge.

Post to forums  

Autodesk Design & Make Report