Experimental:Sort POP

Summary

The Sort POP sorts the point list and/or the primitive list based on the position P or any attribute component. When sorting by P it can sort the points relative to a vector, or proximity to a point, or relative to a Geometry COMP's Z axis.

The Sort POP can also randomize the point order, or shift the point order (circularly in the point list, like first point becomes the second point and the last point becomes the first).

It can do the same operations to primitives.

It implements https://gpuopen.com/fidelityfx-parallel-sort/

sortPOP_Class

Parameters - Point Page

Point Method ptmethod - ⊞ -

• No Change none -

• By Attribute byattrib -

• Random seed -

• Proximity to Point prox -

• Along Vector vector -

• Relative to Object Z-axis object -

Attribute pointattr -

Attrib is UInt pointuint - ⊞ -

• Not UInt Attrib notuint -

• 4 bits UInt (max 16) uint4 -

• 8 bits UInt (max 256) uint8 -

• 12 bits UInt (max 4096) uint12 -

• 16 bits UInt (max 65,536) uint16 -

• 20 bits UInt (max 1 M) uint20 -

• 24 bits UInt (max 16 M) uint24 -

• 28 bits UInt (max 268 M) uint28 -

• 32 bits UInt (max 4 B) uint32 -

Seed pointseed -

Point pointprox - ⊞ -

• Point pointproxx -

• Point pointproxy -

• Point pointproxz -

Vector pointdir - ⊞ -

• Vector pointdirx -

• Vector pointdiry -

• Vector pointdirz -

Object pointobj -

Reverse pointrev -

Shift pointshift -

Offset pointoffset -

Parameters - Primitive Page

Primitive Method primmethod - ⊞ -

• No Change none -

• By Point Attribute byptattrib -

• By Primitive Attribute byprimattrib -

• Random seed -

• Proximity to Point prox -

• Along Vector vector -

• Relative to Object Z-axis object -

Attribute primattr -

Attrib is UInt primuint - ⊞ -

• Not UInt Attrib notuint -

• 4 bits UInt (max 16) uint4 -

• 8 bits UInt (max 256) uint8 -

• 12 bits UInt (max 4096) uint12 -

• 16 bits UInt (max 65,536) uint16 -

• 20 bits UInt (max 1 M) uint20 -

• 24 bits UInt (max 16 M) uint24 -

• 28 bits UInt (max 268 M) uint28 -

• 32 bits UInt (max 4 B) uint32 -

Seed primseed -

Point primprox - ⊞ -

• Point primproxx -

• Point primproxy -

• Point primproxz -

Vector primdir - ⊞ -

• Vector primdirx -

• Vector primdiry -

• Vector primdirz -

Object primobj -

Reverse primrev -

Shift primshift -

Offset primoffset -

Parameters - Common Page

Bypass bypass -

Delete Input Attributes delinputattrs -

Parameter Color Space parmcolorspace - ⊞ - Controls how all color parameters on this node are interpreted. The color values as treated as being in the selected color space, and are converted to the Working Color Space before they are used as part of the node's operation. Note that this does not change the color space of the node itself, as that is always in the Working Color Space.

• sRGB srgb - sRGB color space, with sRGB transfer function. Considered an SDR color space with respect to Reference White.

• sRGB - Linear srgblinear - sRGB color space, with linear transfer function. Considered an SDR color space with respect to Reference White.

• Rec.601 (NTSC) rec601ntsc - Rec.601 with NTSC primaries color space, with Rec.601 transfer function. Considered an SDR color space with respect to Reference White.

• Rec.709 rec709 - Rec.709 color space, with Rec.709 (same as Rec.2020) transfer function. Considered an SDR color space with respect to Reference White.

• Rec.2020 rec2020 - Rec.2020 color space, with Rec.2020 (same as Rec.709) transfer function. Considered an HDR color space with respect to Reference White.

• DCI-P3 dcip3 - DCI-P3 color space, with D65 white point and 2.6 gamma transfer function. Considered an HDR color space with respect to Reference White.

• DCI-P3 (D60) dcip3d60 - DCI-P3 "D60 sim" color space, with D60 white point, and 2.6 gamma transfer function. Considered an HDR color space with respect to Reference White.

• Display-P3 (D65) displayp3d65 - Display-P3 color space, with D65 white point, and sRGB gamma transfer function. Considered an HDR color space with respect to Reference White.

• ACES2065-1 aces2065-1 - ACES 2065-1 (also known as ACES AP0) color space, with a linear gamma transfer function. Considered an HDR color space with respect to Reference White.

• ACEScg acescg - ACEScg (also known as ACES AP1) color space, with a linear gamma transfer function. Considered an HDR color space with respect to Reference White.

• Passthrough passthrough - When selected, the color values will be used as-is in the operation, without any modification or attempt to convert them into the Working Color Space.

Parameter Reference White parmreferencewhite - ⊞ - When converting a parameter color value to the Working Color Space, this controls how it should be treated with respect to Reference White. If the Working Color Space is the same Reference White, then no adjustment is done. If they are different, then the Reference White level (brightness) of this color will be adjusted to the range expected by the Working Color Space. For example if the project is set to have a SDR Reference White of 120 nits, and the HDR Reference White is 80 nits, then a color of (1, 1, 1), which is 120 nits in the SDR color space, will be converted to be (1.5, 1.5, 1.5), which is 120 nits still in the HDR Working Color Space.

• Default For Color Space default - Will use either the SDR or the HDR Reference White, based on the color space selected.

• Standard (SDR) sdr - Will treat the Parameter Color Space as SDR for it's reference white value.

• High (HDR) hdr - Will treat the Parameter Color Space as HDR for it's reference white value.

Operator Inputs

• Input 0: -

Info CHOP Channels

Extra Information for the Sort 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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An Operator Family that contains its own Network. There are sixteen 3D Object Component and ten 2D Panel Component types. See also Network Path.

Each SOP has a list of Points. Each point has an XYZ 3D position value plus other optional attributes. Each polygon Primitive is defined by a vertex list, which is list of point numbers.

The sub-Family of Component types that are used to define and render 3D scenes. A Geometry Component is an Object that contains the 3D shapes to render. A Camera COMP and Light COMP are other Object types. Separately, "Objects" also refers to Python objects.

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.

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

Information associated with SOP geometry. Points and primitives (polygons, NURBS, etc.) can have any number of attributes - position (P) is standard, and built-in optional attributes are normals (N), texture coordinates (uv), color (Cd), etc.

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.

A parameter reference can be setup between any two parameters by putting an expression in one parameter that refers to another parameter. This creates a Link between the two parameters such that when one changes, the other will change automatically (known in other software as a "constraint").

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.