rotate packed primitives/ WALTER ROTATE

how to rotate a/bunch of packed primitive/s -
Use a WALTER ROTATE.

in a primitive wrangle:


float randomFactor=rand(@primnum+2323)*chf("randomMult");
matrix3 rot = primintrinsic(0, "transform", @primnum);
vector4 orient = quaternion(rot);
vector x = normalize(qrotate(orient, {1,0,0}));
vector y = normalize(qrotate(orient, {0,1,0}));
rotate(rot, radians(chf("angle") * randomFactor), x);
rotate(rot, radians(chf("angley")), y);
setprimintrinsic(0, "transform", @primnum, rot);

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what we are doing is:

• making a random factor to multiply the rotations, using primnum as a seed
• creating a matrix called "rot", and initialising it to the transform of the primitive
• create a vector called "orient", using the quarternion of the rot matrix
• create vectors x and y
• rotate the rot matrix using input angles for x and y
• then finally set the primitive intrinsic using the rot matrix