| import logging | |
| from maya.api import OpenMaya | |
| import mayaUsd.lib as mayaUsdLib | |
| from pxr import Sdf | |
| def log_errors(fn): | |
| """Decorator to log errors on error""" | |
| def wrap(*args, **kwargs): | |
| string targetpath = "/focus_point"; // Target prim to focus on | |
| // Compute Z-plane distance to target prim transform from camera transform | |
| matrix cam = usd_worldtransform(0, @primpath); | |
| matrix target = usd_worldtransform(0, targetpath); | |
| vector origin = set(0, 0, 0); | |
| matrix local_diff = target * invert(cam); | |
| vector local_pos = ptransform(origin, local_diff); | |
| float dist = -local_pos.z; // inverted, because -Z is direction camera looks at |
| """Create Default Assembly Rig Setup as shown in How RISE VFX Reached New Creative Heights with USD in Maya talk | |
| See: https://youtu.be/8UIW-g1_heg?t=1902 | |
| """ | |
| import pxr | |
| import ufe | |
| import pymel.core as pm | |
| from mayaUsd import lib as mayaUsdLib | |
| USD_SCHEMA = "UsdSchemaBase" |
Note these are not any official notes - just random scribbles
Running bootstrap wont give you the latest dev versions, only whats been released on the bootstrap server by the ynput team.
Updating it from time to time is a good way to see what progress has been made in terms of addons etc. It shouldnt remove old addon version, only add the new ones. That way you can still use older addons should you need. You would need to create a new bundle to accommodate that.
| from maya import cmds | |
| import maya.api.OpenMaya as om | |
| import contextlib | |
| def pairwise(iterable): | |
| """s -> (s0,s1), (s2,s3), (s4, s5), ...""" | |
| a = iter(iterable) | |
| return zip(a, a) |
| from pxr import Usd, Sdf | |
| def should_copy_children_fn( | |
| children_field, | |
| src_layer, src_path, field_in_src, | |
| dest_layer, dest_path, field_in_dest | |
| ): | |
| """Filter function for Sdf.CopySpec to exclude children prims""" | |
| if children_field == "primChildren": |
| """Minimal example of how to 'light link' with USD in maya via a quick and dirty UI | |
| Basically all the buttons behave in the way that anything that is valid for UsdLux.LightAPI | |
| is considered to be a Light, anything else in your current selection is a target. | |
| USD manages both an *Includes* relationship and *Excludes* relationship - the UI | |
| basically exposes both to 'add', 'remove' or 'clear' these relationships for a given | |
| light. When adding or removing all selected objects in your selection that are not | |
| a light are processed as the target. |
| from collections.abc import Callable | |
| from pxr import Sdf | |
| def import_layer( | |
| path: str, | |
| target_layer: Sdf.Layer, | |
| target_path: Sdf.Path, | |
| copy_spec_fn: Callable[[Sdf.Layer, Sdf.Path, Sdf.Layer, Sdf.Path], bool] = Sdf.CopySpec | |
| ): |
| import difflib | |
| from pxr import Sdf | |
| # Purely as an example, say this `layer` is one that's currently already | |
| # available and is dirty currently | |
| identifier = r"C:\Users\User\Desktop\asset.usd" | |
| layer = Sdf.Layer.FindOrOpen(identifier) | |
| layer.Reload() # just so we can re-run this script | |
| layer.subLayerPaths.append("./hello_world.usd") # making a change, making it dirty |
| from pxr import Usd, Plug, Tf | |
| from collections import defaultdict | |
| NICE_NAMES = { | |
| "usdGeom": "Geometry", | |
| "usdLux": "Lighting", | |
| "mayaUsd_Schemas": "Maya Reference", | |
| "usdMedia": "Media", | |
| "usdRender": "Render", | |
| "usdRi": "RenderMan", |