mattebb

/* ensure array is contiguous, aligned and correct data type */
array = PyArray_FROM_OTF(input_array, NPY_FLOAT32, NPY_CARRAY_RO);

/* reshape the input array to the correct dimensions */
PyArray_Dims dims;
npy_intp shape[2] = {-1, attr.count};
dims.len = 2;
dims.ptr = shape;
array = PyArray_Newshape((PyArrayObject *)array, &dims, NPY_CORDER);

mattebb

import partio
import numpy as np
p = partio.create()
size = 3
posattr = p.addAttribute("pos",partio.FLOAT,size)
for i in range(8):
	p.addParticle()
	
	data = tuple(i+j*100 for j in range(size))
	p.set(posattr, i, data)

mattebb

    %feature("autodoc");
    %feature("docstring","Gets a single flattened tuple, containing attribute data for all particles");
    PyObject* getTuple(const ParticleAttribute& attr)
    {    
        unsigned int numparticles = $self->numParticles();
        PyObject* tuple=PyTuple_New(numparticles * attr.count);
        
        if(attr.type==Partio::INT){
            for(unsigned int i=0;i<numparticles;i++) {

mattebb

// http://soup-dev.websitetoolbox.com/post/curl-noise-for-maya-5937312

pickWalk -d down;
string $part[] = `ls -sl`;
addAttr -ln "noiseFrequency" -at double3 $part[0];
addAttr -ln "noiseFrequencyX" -at double -p noiseFrequency $part[0];
addAttr -ln "noiseFrequencyY" -at double -p noiseFrequency $part[0];
addAttr -ln "noiseFrequencyZ" -at double -p noiseFrequency $part[0];
setAttr -type double3 ($part[0] + ".noiseFrequency") 0.4 0.4 0.4;
setAttr -e-keyable true ($part[0] + ".noiseFrequency");

mattebb

if hou.updateModeSetting() == hou.updateMode.Manual:
    hou.setUpdateMode(hou.updateMode.AutoUpdate)
elif hou.updateModeSetting() == hou.updateMode.AutoUpdate:
    hou.setUpdateMode(hou.updateMode.Manual)

mattebb

selpath = hou.hscriptExpression('mousepath()').split('.')[-1]
voppath = '/'.join( selpath.split('/')[:-1] )
node = hou.node(voppath)

retval, aname = hou.ui.readInput("Attribute Name", buttons=('OK',))

if retval != -1:
    add = node.createNode('addattrib')
    add.setName("add_%s"%aname)
    add.parm('attrib').set(aname)

mattebb

int i, steps = 80;
float sumhist[], sum=0, slice = 1.0/float(steps);
seed += 123456789;

for (i=0;i<steps;i++) {
    float pos = (i*slice);
    float val = chramp("__rndweight", pos);
    sum += val;    
    push(sumhist, sum);
}

mattebb

float theta = -$PI * x; 
float phi = $PI * 0.5 * y;

float sin_theta = sin(theta);
float cos_theta = cos(theta);
float sin_phi = sin(phi);
float cos_phi = cos(phi);

i.z = sin_theta * cos_phi;
i.y = sin_phi;

mattebb

#pragma opname          fisheyelens
#pragma oplabel         "Fisheye Lens"

#pragma hint    x       hidden
#pragma hint    y       hidden
#pragma hint    Time    hidden
#pragma hint    dofx    hidden
#pragma hint    dofy    hidden
#pragma hint    aspect  hidden
#pragma hint    P       hidden

mattebb

struct Light {
	float intensity;
	vec3 colour;
	vec3 pa;
	vec3 pb;
	float w;

	vec3 L;
	vec3 nL;
};