Enter the file path and file name or use the folder icon to browse to the required location.

Reading .abc and .usd files containing more than one object displays a scenegraph load dialog that allows you to create separate ReadGeo nodes from parents in the scenegraph. See Importing ABC Meshes and Point Clouds or Importing USD Items for more information.

Sets the local file caching behavior. Copies of the files are stored in a specified local folder for faster access times:

• on - the files are cached, regardless of location, as long as the limit to (GB) limit is not breached.

• from auto-localize path - the files are cached if they reside in the auto-localize from directory, as long as the limit to (GB) limit is not breached.

• on demand - only localize these source clips when you manually update them. See Localizing Files for Better Performance for more information.

• off - the files are never cached, regardless of location.

When this ReadGeo node is set to Localization Policy > on demand, click Update to manually localize the files from the source files.

Click to reload the geometry from disk, overwriting any changes.

Sets the start frame for the frame range displayed in the Viewer when the frame slider range is set to Input. This can be used to display the offset used in the TimeOffset node.

Sets the end frame for the frame range displayed in the Viewer when the frame slider range is set to Input. This can be used to display the offset used in the TimeOffset node.

Adjust the display characteristics of the object. These settings don’t affect the render output of the scene; these are for display purposes only in the 3D Viewer.

• off - hides the 3D geometry object.

• wireframe - displays only the outlines of the object’s geometry.

• solid - displays all geometry with a solid color.

• solid+wireframe - displays the geometry as solid color with the object’s geometry outlines.

• textured - displays only the surface texture.

• textured+wireframe - displays the wireframe plus the surface texture.

When enabled, you can make selections as normal in the Viewer. When disabled, points cannot be selected or changed.

Sets how the object will render. This control is independent from the display selection, but has the same settings.

When enabled, the object can cast shadows.

When enabled, and a material shader has been added to the geometry, the object can receive shadows.

Transform Tab

Select to import or export a channel file:

• Import chan file - import a channel file and transform the object according to the transformation data in the channel file. Channel files contain a set of Cartesian coordinates for every frame of animation in a given shot. You can create and export them using Nuke or 3D tracking software, such as 3D-Equalizer, Maya, or Boujou.

• Export chan file - export the translation parameters that you’ve applied to the object as a channel file. This is a useful method of sharing setups between artists.

• Match selection position - the object is snapped to a new position depending on the points selected.

• Match selection position, orientation - the object is snapped to a new position and orientation depending on the points selected.

• Match selection position, orientation, size - the object is snapped to a new position, orientation, and size depending on the points selected.

Sets the operation order for scale (S), rotation (R), and translation (T). The possible operation combinations are SRT, STR, RST, RTS, TSR, TRS.

Sets the order of rotation. The possible axial combinations are ZXY, XYZ, XZY, YXZ, YZX, ZXY, ZYX.

Lets you translate the object along the x, y, and z axes. You can also adjust translate values by clicking and dragging the object in the 3D Viewer.

Lets you rotate the object around the x, y, and z axes. you can adjust rotate values by holding down Ctrl/Cmd and dragging in the 3D Viewer.

Lets you scale the object on the x, y, and z axes.

Lets you scale the object simultaneously on the x, y, and z axes.

Lets you skew the object on the x, y, and z axes.

When you make changes to a 3D object’s position, scaling, skewing, and rotation, these occur from the location of the object’s origin point or pivot. The pivot x, y, and z controls allow you to offset the pivot point and move it anywhere you like - you can even move it outside of the object. Subsequent transformations applied will then occur relative to the new pivot point location.

You can also hold down Ctrl/Cmd+Alt and drag the pivot point to a new location in the 3D Viewer.

Local matrix

Enable this to specify matrix values for the object you’re transforming as an alternative to setting transform, scale, skew and pivot values above.

ABC Options - These controls are only shown if you have imported an .abc file.

When enabled, ReadGeo bakes each object's transform into the mesh points and preserves the animation.

This should be enabled for animated objects.

When enabled, objects are read on sub frames which can be used to render motion blur.

Tip:  Disable sub frame for faster UI interaction.

When read on each frame is disabled, the object is read at this frame.

The frame rate (frames per second) to use to sample the animation.

Determines how point primitives are rendered:

• point clouds - Render primitives as Nuke point clouds.

• particles - Render primitives as Nuke particles.

When enabled, apply geometry color attributes read from .abc files and apply them to the Nuke geometry.

Note:  Disabling use geometry colors can cause differences in rendered output when compared to previous versions of Nuke. If this occurs, enable use geometry colors in the ReadGeo properties panel.

Displays the mesh nodes in the scene. The point cloud nodes are not listed.

By default, only meshes imported into this ReadGeo node are shown. To view all meshes that exist in the Alembic file, enable view entire scenegraph.

The Load icons on the left indicate the state of each item in the list:

• A gray dot - The item isn’t loaded into this ReadGeo node or is hidden.

• An orange bar - The item is loaded into this ReadGeo node, and is a child of a parent item somewhere further up the tree. This icon turns gray if you select the item in the list.

Click the Load icons to show and hide the selected item and its children.

FBX Options - These controls are only shown if you have imported an .fbx file.

The take you want to use from the .fbx file. FBX supports multiple takes in one file. Usually, one of the takes is a default take with no animation.

The mesh node you want to import from the .fbx file.

Point cloud nodes are not listed.

The frame rate (frames per second) to use to sample the animation curves. To use this rate rather than the one defined in the FBX file, check use frame rate.

When enabled, the frame rate defined above is used to sample the animation curves.

When disabled, the frame rate defined in the .fbx file is used to sample the animation curves.

Select the object type:

• Mesh - Import a single mesh or all the meshes (or NURBS curves/patch surfaces converted to meshes) from the .fbx file.

• Point Cloud - Import a point cloud from the .fbx file.

When enabled, ReadGeo imports all the meshes in the .fbx file rather than just one. This overrides whatever you have selected under node name.

When enabled, ReadGeo bakes each object's transform into the mesh points and preserves the animation.

This should be enabled for animated objects.

OBJ Options - These controls are only shown if you have imported an .obj file.

Sets the update mode for the OBJ geometry:

• all - loads all geometry groups for each frame.

• point-cloud - loads only point and point attributes group data at each frame. The primitives frame control specifies which frame in the sequence contains the primitive and vertex attribute group data.

When update mode is set to point-cloud, sets which frame in the sequence contains the primitive and vertex attribute group data.

USD Options - These controls are only shown if you have imported a .usd or .usda file.

When enabled, ReadGeo bakes each object's transform into the mesh points and preserves the animation.

Note:  read on each frame should be enabled for animated objects.

Displays all items in the file, including currently unsupported items such as cameras.

The Load column displays the state of each item in the file:

Note:  Grayed-out items are currently unsupported.

• A gray dot - The item isn’t loaded into this ReadGeo node or is hidden.

• An orange bar - The item is loaded into this ReadGeo node, and is a child of a parent item somewhere further up the tree. This icon turns gray if you select the item in the list.

• A broken orange bar - The item is partially loaded, meaning that some children of the item are not loaded.

You can show or hide imported items by clicking on the icons in the Load column. Alternatively, you can choose select or deselect from the right-click menu.

The Type column displays at a glance what the file contains, such as meshes and cameras.

Note:  By default, only items imported into this ReadGeo node are shown. To view all items that exist in the USD file, enable view entire scenegraph.