File In POP

Summary

The File In POP reads a file and converts it into a POP in GPU memory.

File formats supported: .obj is the most complete now. As well, older .tog, .bhclassic, .hclassic.

You can use http:// URL prefix when specifying a supported file accessible on the network.

See also: Point File In POP, Alembic In POP, FBX COMP, USD COMP

fileinPOP_Class

Parameters - File In Page

Geometry File file - Contains the full pathname of the geometry file to be read in.

Flip Primitive Faces flipfacing - Enable flipping the primitive faces of the geometry.

Refresh refresh - ⊞ - In some modes like Circle, the points can be in a fixed patter or be random.

• Refresh refresh -

• Refresh Pulse refreshpulse - Force a check on the file to re-read if it has changed.

Input Color Space inputcolorspace - ⊞ - Override / set the color space, or use the color space in the file, or assume default if there is none.

• Automatic automatic -

• sRGB srgb -

• sRGB - Linear srgblinear -

• Rec.601 (NTSC) rec601ntsc -

• Rec.709 rec709 -

• Rec.2020 rec2020 -

• Rec.2020 ST2084PQ rec2020st2084pq -

• Rec.2020 HLG rec2020hlg -

• DCI-P3 dcip3 -

• DCI-P3 (D60) dcip3d60 -

• Display P3 (D65) displayp3d65 -

• Display P3 (D65) - Linear displayp3d65linear -

• ACES2065-1 aces2065-1 -

• ACEScg acescg -

• ACESproxy acesproxy -

• Passthrough passthrough -

Input Reference White inputreferencewhite - ⊞ - Color space to use for the incoming data.

• Default For Color Space default -

• Standard (SDR) sdr -

• High (HDR) hdr -

• UI ui -

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 File In 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.

TouchDesigner Build: Latest\nwikieditorwikieditorwikieditor2025.30000

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.

A surface type in SOPs that includes polygon, curve (NURBS and Bezier), patch (NURBS and Bezier) and other basic shapes like sphere, tube and metaball. Points and Primitives are part of the Geometry Detail, which is a part of a SOP.

To "pulse" a parameter is to send it a signal from (1) an exported CHOP channel or (2) a python command or (3) a mouse click that causes a new action to occur immediately. A pulse via python is via the .pulse() function on a pulse-type parameter, such as Reset parameter in a Speed CHOP. A pulse from a CHOP is typically a 0 to 1 to 0 signal in an exported channel.

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.

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.