Category: hou-programming

i’m not sure that it’s you. re_replace can be pretty weird sometimes

i can’t make it capture $F5 despite using syntax that i know is valid regex

here’s a crappy workaround

“`string path = chs(“path”); s@blah = re_replace(sprintf(“%05d”, @Frame), ‘1234’, path); “`

aha

“`s@blah2 = re_replace(‘[$]F5’, ‘2345’, path);“`

escape the $ with square brackets. that’s totally sane and documented

Thought that could be valuable to someone at some point. node.cook(force_cook=True) doesn’t work in manual mode, so here’s a shitty workaround for it 🙂 “` import tempfile def get_sop_node_geometry(node): “”” Force cook a node even in manual mode
Args: node (hou.SopNode): a Sop node to compute
Returns: hou.Geometry: The frozen geometry
“”” rop_geo = hou.node(‘/out’).createNode(‘geometry’) rop_geo.parm(‘soppath’).set(node.path()) tmp_file = tempfile.NamedTemporaryFile(suffix=’.bgeosc’) try: rop_geo.render(output_file=tmp_file.name) except hou.Error: rop_geo.destroy() return hou.Geometry() rop_geo.destroy() geometry = hou.Geometry() geometry.loadFromFile(tmp_file.name) return geometry “`

“`python import fnmatch import hou
def glob_attrs(geo, pattern): all_attrs = list() out_attrs = list() all_attrs.extend(geo.pointAttribs()) all_attrs.extend(geo.primAttribs()) all_attrs.extend(geo.vertexAttribs()) all_attrs.extend(geo.globalAttribs()) matches = [f for f in pattern.split() if not f.startswith(“^”)] excludes = [f.strip(“^”) for f in pattern.split() if f.startswith(“^”)] for attr in all_attrs: for pattern in matches: if fnmatch.fnmatch(attr.name(), pattern): out_attrs.append(attr) for pattern in excludes: if fnmatch.fnmatch(attr.name(), pattern): if attr in out_attrs: out_attrs.remove(attr) out_attrs = list(set(out_attrs)) return out_attrs “`

feed it a Geometry object and a pattern and it’ll return hou.Attribs

no guarantees it isn’t shit but it might help you

in the textport you can do `vexprofile start`, play a few frames, then just `vexprofile` and you get stuff like “`/ -> vexprofile start / -> vexprofile —————————————————————————— VEX profile listing generated: Sun Mar 8 12:40:51 2020
Function Excl. Incl. Calls Instructions Instr. SIMD SIMD Min SIMD Max Code Local Secs Secs Per Call Size Storage —————————————————————————— op:/obj/geo1/mountain1/attribvop1 0.20 0.20 137,500 10,324,545 75.08 833.33 452 1,024 168 127,184 —————————————————————————— Invocations Instruction 22,000,000 mul 12,375,000 xnoise 12,375,000 br 11,024,750 set 11,013,200 add 11,013,200 select 1,379,950 div 1,375,000 eq 1,375,000 sqrt 1,375,000 _export 1,375,000 merge 1,375,000 swap 13,200 lt 13,200 ne 13,200 gt 13,200 and 9,900 getcomp 1,650 setcomp“`

idk if there’s a way to have it list your own functions in there though – does xnoise only appear because it’s actually a native vex function and not something defined in a header?