GLSL Create POP

Summary

This POP is deprecated and will be removed. Use GLSL Advanced POP with or without Topology POP to create primitives with GLSL instead.

glslcreatePOP_Class

Parameters - GLSL Page

Compute Shader computedat -

Primitive Type primtype - ⊞ -

• Triangles triangle -

• Quads quads -

• Lines lines -

• Points points -

Max Number of Primitives maxprims -

Indirect indirect -

Number of Threads numthreadsmode - ⊞ -

• Auto auto -

• Manual manual -

Work Group Size workgroupsize - ⊞ -

• Work Group Size workgroupsizex -

• Work Group Size workgroupsizey -

• Work Group Size workgroupsizez -

Dispatch Size dispatchsize - ⊞ -

• Dispatch Size dispatchsizex -

• Dispatch Size dispatchsizey -

• Dispatch Size dispatchsizez -

POPs pops -

Parameters - Vectors Page

Vector vec -

Name vec0name -

Type vec0type - ⊞ -

• float float -

• vec2 vec2 -

• vec3 vec3 -

• vec4 vec4 -

• double double -

• dvec2 dvec2 -

• dvec3 dvec3 -

• dvec4 dvec4 -

• int int -

• ivec2 ivec2 -

• ivec3 ivec3 -

• ivec4 ivec4 -

• uint uint -

• uvec2 uvec2 -

• uvec3 uvec3 -

• uvec4 uvec4 -

Value vec0value - ⊞ -

• Value vec0valuex -

• Value vec0valuey -

• Value vec0valuez -

• Value vec0valuew -

Parameters - Samplers Page

Sampler sampler -

Name sampler0name -

TOP sampler0top - ⊞ -

Extend U sampler0extendu - ⊞ -

• Hold hold -

• Zero zero -

• Repeat repeat -

• Mirror mirror -

Extend V sampler0extendv - ⊞ -

• Hold hold -

• Zero zero -

• Repeat repeat -

• Mirror mirror -

Extend W sampler0extendw - ⊞ -

• Hold hold -

• Zero zero -

• Repeat repeat -

• Mirror mirror -

Filter sampler0filter - ⊞ -

• Nearest Pixel nearest -

• Interpolate Pixels linear -

Parameters - Arrays Page

Array array -

Name array0name -

Type array0type - ⊞ -

• float float -

• vec2 vec2 -

• vec3 vec3 -

• vec4 vec4 -

CHOP array0chop -

Parameters - Matrices Page

Matrix matrix -

Name matrix0name -

Matrix matrix0value -

Parameters - Atomic Counters Page

Atomic Counter ac -

Name ac0name -

Initial Value ac0singlevalue -

Parameters - Constants Page

Constant const -

Name const0name -

Value const0value -

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.

Operator Inputs

• Input 0: -

Info CHOP Channels

Extra Information for the GLSL Create 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\nwikieditor2025.30000

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 OpenGL (pre-2022) or Vulkan (2022-) code that runs on the GPU and creates rendered images from polygons and textures. A shader is programmed in Text DATs and referenced by a GLSL Material or a GLSL TOP. Shaders are composed of up to three parts: Vertex Shader, Pixel Shader and Compute Shader.

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.

A Group in POPs and SOPs is a named subset of points or primitives. It is created with the Group POP or Group SOP. Numerous operations in POPs and SOPs (using a Group parameter) can be restricted to affect the points or primitives in selected groups, and not affect others.

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.

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

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.

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

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.

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