Translate Point B in relation to point A?

Graphics and GPU Programming Programming

Started by Paul Griffiths January 31, 2017 11:19 PM

3 comments, last by Paul Griffiths 7 years, 2 months ago

Paul Griffiths

-106

Author

January 31, 2017 11:19 PM

I have 3 matrix4.


glm::mat4 A;
glm::mat4 B;
glm::mat4 C;

I wish to translate and rotate A to C and B gets translated and rotated with it as in this diagram. How to get B? This is 3D, x, y & z. Any ideas?

Nypyren

12,313

February 01, 2017 01:24 AM

C * A^-1 * B? Something like that, anyway.

Paul Griffiths

-106

Author

February 01, 2017 03:06 AM

C * A^-1 * B? Something like that, anyway.

What does the ^ mean?

Thanks.

Nypyren

12,313

February 01, 2017 03:18 AM

C * A^-1 * B? Something like that, anyway.
What does the ^ mean?
Thanks.

^ means "superscript", so A^-1 means "the inverse of A"

Paul Griffiths

-106

Author

February 01, 2017 03:23 AM

C * A^-1 * B? Something like that, anyway.

What does the ^ mean?
Thanks.

^ means "superscript", so A^-1 means "the inverse of A"

Thanks, I tried it:

B = C * glm::inverse(A) * B;

Appreciated!

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Translate Point B in relation to point A?

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