ZED POP

Summary

NOTE

OS: This operator is only supported under the Microsoft Windows operating system.

The ZED POP uses the ZED StereoLabs SDK to scan and create geometry meshes (triangles) by moving it around the room or an object of interest or generate live point clouds from on-camera depth data.

After pressing start the ZED POP uses each frame of video to build up the mesh, with the preview of the captured points in the viewer.

To know what ZED SDK we are using, refer to the ZED page. See also ZED, ZED TOP, ZED CHOP and ZED SOP

zedPOP_Class

Parameters - Zed Page

Active active - Extra pass to free unused GPU memory.

ZED TOP zedtop - Reference to a ZED TOP.

Output Mode outputmode - ⊞ - Whether to output a mesh or a point cloud.

• Mesh mesh -

• Point Cloud pointcloud -

Connectivity connectivity - ⊞ - Determines whether and how to connect the points.

• None none -

• Point Primitives points -

• Triangles triangles -

Initialize initialize - Clears the extracted geometry and resets spatial mapping.

Start startpulse - Start playback.

Play play - Enable playback.

Go to Done donepulse - Will immediately go to the done state.

Preview preview - ⊞ - Camera preview mode.

• No Preview nopreview -

• Limited Preview limited -

• Full Preview limited -

Maximum Memory maxmemory - Sets the maximum memory used for spatial mapping.

Resolution resolution - Spatial mapping resolution in meters.

Range range - Depth range in meters.

Normals normals - When enabled, the extracted geometry will have normals.

Color color - Output color information as an attribute.

Filter filter - ⊞ - The greater the filtering, the more the resulting mesh is smoothed, small holes are filled, and small blobs of non-connected triangles are deleted.

• Low low -

• Medium medium -

• High high -

Perspective perspective - ⊞ - Camera perspective.

• Left left -

• Right right -

Rerange from Low High rerangefromlow - ⊞ - Range for input values.

• Rerange from Low High rerangefromlow - Re-ranging low values.

• Rerange from High rerangefromhigh - Re-ranging from high value.

Rerange to Low High rerangetolow - ⊞ - Range for output values.

• Rerange to Low High rerangetolow - Re-ranging to low value.

• Rerange to High rerangetohigh - Re-ranging to high value.

Mirror Image mirrorimage - Mirrors the input image.

Camera camera - Specify the camera component.

Override Camera View overridecamera - When on, overrides the View settings from the selected camera object.

View Angle Method viewanglemethod - ⊞ - Sets the method to convert the depth TOP.

• Horizontal FOV horfov -

• Vertical FOV vertfov -

• Focal Lengths focallengths - Determines the camera's focal lengths.

FOV Angle fov - Determines the camera's field of view angle.

Focal Length (Fx, Fy) focallengths - ⊞ -

• Focal Length (Fx, Fy) focallengthsx -

• Focal Length (Fx, Fy) focallengthsy -

Optical Center (Cx, Cy) center - ⊞ - The location of the center of the camera for the depth projection.

• Optical Center (Cx, Cy) centerx -

• Optical Center (Cx, Cy) centery -

Delete Near Points deletenear - Enable removal of points that are close to the camera.

Near Depth depthnear - Depth of the near clipping plane.

Delete Far Points deletefar - Enable removal of points that are far from the camera.

Far Depth depthfar - Depth of the far clipping plane.

Parameters - Common Page

Bypass bypass - Pass through the first input to the output unchanged.

Free Extra GPU Memory freeextragpumem - Free memory that has accumulated when output memory has grown and shrunk.

Delete Input Attributes delinputattrs - Only output which attributes you specify in this POP - helps isolate attributes into a separate branch.

Info CHOP Channels

Extra Information for the ZED POP can be accessed via an Info CHOP.

Common Operator Info Channels

• total_cooks - Number of times the operator has cooked since the process started.

• cook_time - Duration of the last cook in milliseconds.

• cook_frame - Frame number when this operator was last cooked relative to the component timeline.

• cook_abs_frame - Frame number when this operator was last cooked relative to the absolute time.

• cook_start_time - Time in milliseconds at which the operator started cooking in the frame it was cooked.

• cook_end_time - Time in milliseconds at which the operator finished cooking in the frame it was cooked.

• cooked_this_frame - 1 if operator was cooked this frame.

• warnings - Number of warnings in this operator if any.

• errors - Number of errors in this operator if any.

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POPs (Point Operators) is a new Operator Family of TouchDesigner that runs on the GPU accelerated graphics card or chips, and creates/modifies 3D data which is rendered by the Render TOP or passed to devices like DMX lighting, LED arrays, lasers or other external systems.

The Graphics Processing Unit. This is the high-speed, many-core processor of the graphics card/chip that takes geometry, images and data from the CPU and creates images and processed data.

An Operator Family that creates, composites and modifies images, and reads/writes images and movies to/from files and the network. TOPs run on the graphics card's GPU.

An Operator Family that creates, composites and modifies images, and reads/writes images and movies to/from files and the network. TOPs run on the graphics card's GPU.

A Link. The grey dashed lines between nodes is a Reference or Link that indicates one operator is getting data from another operator from any Operator Family.

The grey dashed lines between nodes is a Reference (or Link). A Reference is (1) a Parameter Reference, a parameter in an OP that is a name or path to another operator, (2) a Node Reference, an expression in a parameter or DAT script that contains the name or path of another operator, (3) a DAT Cell Reference or (4) a CHOP Channel Reference.

A Link or Reference is a dashed line between nodes that represent other data flowing between nodes. Examples are CHOP Exports, node Paths in parameters, and expressions in parameters referencing CHOP channels, DAT tables and other nodes. In contrast is a Wire that connects nodes in the same Operator Family.

The width and height of an image in pixels. Most TOPs, like the Movie File In TOP can set the image resolution. See Aspect Ratio for the width/height ratio of an image, taking into account non-square pixels.

Operators that need 1 or more inputs are called Filters in TouchDesigner, like a Math CHOP. See Generator.

An operator whose Bypass flag is set does nothing: All data going into its first input appears at its output unaffected.

Attributes are data associated with POP geometry. Points, Vertex (Vertices) and Primitives (polygons, lines, etc) can have any number of attributes.

An Operator Family which operate on Channels (a sequence of numbers (Samples)) which are used for animation, audio, mathematics, simulation, logic, UI construction, and data streamed from/to devices and protocols.