I'm wondering what the best way to go about using degrees to set @orient, here's what I have:

vector4 x_rot = quaternion({1,0,0}*ch('x_rot'));
vector4 y_rot = quaternion({0,1,0}*ch('y_rot'));
vector4 z_rot = quaternion({0,0,1}*ch('z_rot'));

@orient = qmultiply(@orient, x_rot);
@orient = qmultiply(@orient, y_rot);
@orient = qmultiply(@orient, z_rot);

Which works fine, but setting quaternion values with sliders isn't very intuitive

The function you want is eulertoquaternion [www.sidefx.com]
With that you can do the following assuming you've got your rotations in degrees in a vector parameter:

That's the ticket, thanks!

In case this is useful for anyone else, these vex expressions allow me to rotate @orient by degrees, but also set a randomized min and max value for those rotations base on the point number. Min and max sliders should go from -1 to 1 and the rot slider 0-360

float randx = fit01(rand(@ptnum),ch('min_x'),ch('max_x'));
float randy = fit01(rand(@ptnum),ch('min_y'),ch('max_y'));
float randz = fit01(rand(@ptnum),ch('min_z'),ch('max_z'));

float rotx = ch('rot_x')*randx;
float roty = ch('rot_y')*randy;
float rotz = ch('rot_z')*randz;

vector r = set(rotx,roty,rotz);

p@orient = eulertoquaternion(radians(r),XFORM_XYZ);

what I usually do is:


to create a new orient with euler angles just start with an identity matrix