copying Matrix

[Follyx]

I try to copy the intrinsic data (matrix3) from a DOP animated to an static  object. Unfortunately the rotation vector is somehow funky.

Have a look at the hip please:

 

 

Credits: Tutorial by Alessandro Nardini on you tube: https://www.youtube.com/watch?v=s9DjkDt-6Js

 

Smart_activation_4.hip

[k2p8]

primintrinsic transform is a matrix3. You binded it as a matrix which is matrix4 in houdini by default.

Just write matrix3 m3 = primintrinsic(1, "transform", pt);

instead of matrix m3 = primintrinsic(1, "transform", pt);

[Follyx]

äh, I dont understand exactly what you mean...?

I declared the m3 as a matrix3

the matrix 4 is needed for packed objects and/ or v and/or w, isnt it?

[Benyee]

On 2021/9/8 at 8:44 PM, Follyx said:

I try to copy the intrinsic data (matrix3) from a DOP animated to an static  object. Unfortunately the rotation vector is somehow funky.

Have a look at the hip please:

 

 

Credits: Tutorial by Alessandro Nardini on you tube: https://www.youtube.com/watch?v=s9DjkDt-6Js

 

Smart_activation_4.hip

hey,try modifying the second line codes in "copy_matrix" node to:?

matrix3 m3 = primintrinsic(1, "transform", pt);

 

[Follyx]

Haha, now I got it. Thank you to you both. F.. Typos...