Experimental:Transform POP

Summary

The Transform POP applies a translate, rotate and scale to the position (attribute P) and normal (attribute N) of all the points of the input.

It can apply the transform to any float3 attribute, not just P, and then output to any existing or new float3 attribute, by default P. It can apply the transform to point, vertex or primitive attributes.

It can apply partial transforms to the points based on a 0 to 1 Weight attribute so that some parts of the geometry are affected and other parts not transformed. The Field POP can generate a Weight attribute to be used by Transform.

Furthermore, using the Map page, every point can receive a different value for the transform parameters, based on mapping incoming attributes to the translate, scale, rotate, pivot etc. parameters, So essentially every point can get a completely different transform.

A further transform can be applied by specifying a Look At component (typically a Null COMP or Geometry COMP), and choosing which axis points to the origin of that component.

Another transform may be applied by providing a 16-value transform matrix via a CHOP or DAT.

The order of applying the translate, rotate and scale parameters is determined by the Transform Order and the Rotate Order menus.

The Inverse toggle parameter applies an inverse of the transform specified. (Instead of tx=2 ry=50 sz=4, the equivalent of sz=.25, ry=-50 tx=-2)

On the Align page there are numerous options for aligning the X, Y or Z coordinate to the different sides/center of the input's bounding box or to the bounding box of a reference POP.

See also Math Mix POP, Trig POP

transformPOP_Class

Parameters - Transform Page

Mode mode - ⊞ -

• Transform Geometry transformgeo -

• Transform Attribute transformattrib -

• Transform Attribute Scope as Position transformattribscopepos -

• Transform Attribute Scope as Vector transformattribscopevec -

• Transform Attribute transformattr -

• Transform Attribute Scope as Position transformattrscopepos -

• Transform Attribute Scope as Vector transformattrscopevec -

Attribute Class attrclass - ⊞ -

• Point point -

• Vertex vertex -

• Primitive primitive -

Input Attribute (Scope) inputattrscope -

Group group -

Weight Attribute weightattr -

Transform Order xord - ⊞ -

• Scale Rotate Translate srt -

• Scale Translate Rotate str -

• Rotate Scale Translate rst -

• Rotate Translate Scale rts -

• Translate Scale Rotate tsr -

• Translate Rotate Scale trs -

Rotate Order rord - ⊞ -

• Rx Ry Rz xyz -

• Rx Rz Ry xzy -

• Ry Rx Rz yxz -

• Ry Rz Rx yzx -

• Rz Rx Ry zxy -

• Rz Ry Rx zyx -

Translate t - ⊞ -

• Translate tx -

• Translate ty -

• Translate tz -

Rotate r - ⊞ -

• Rotate rx -

• Rotate ry -

• Rotate rz -

Scale s - ⊞ -

• Scale sx -

• Scale sy -

• Scale sz -

Pivot p - ⊞ -

• Pivot px -

• Pivot py -

• Pivot pz -

Uniform Scale scale -

Invert invert -

Vectors Maintain Length vlength -

Look At lookat -

Up Vector upvector - ⊞ -

• Up Vector upvectorx -

• Up Vector upvectory -

• Up Vector upvectorz -

Forward Direction forwarddir - ⊞ -

• +X posx -

• -X negx -

• +Y posy -

• -Y negy -

• +Z posz -

• -Z negz -

Xform Matrix/CHOP/DAT xformmatrixop -

Multiply Order multiplyorder - ⊞ -

• Input, then Transform Page inputxformpage -

• Transform Page, then Input xformpageinput -

Output Attribute (Scope) outputattrscope - ⊞ -

• P P -

• N N -

• Color Color -

• Color.i012 Color.i012 -

• Tex Tex -

• PointScale PointScale -

• LineWidth LineWidth -

Override Automatic Attribute overrideautoattr -

New Attribute Type newattrtype - ⊞ -

• float float -

• double double -

• int int -

• uint uint -

• dir dir -

• dbl dir ddir -

New Attribute Number of Components attrnumcomps - ⊞ -

• 1 1 -

• 2 2 -

• 3 3 -

• 4 4 -

New Attribute Default Value newattrdefaultval - ⊞ -

• New Attribute Default Value newattrdefaultval1 -

• New Attribute Default Value newattrdefaultval2 -

• New Attribute Default Value newattrdefaultval3 -

• New Attribute Default Value newattrdefaultval4 -

Parameters - Align Page

Align Transform Order alignxformorder - ⊞ -

• Transform, then Align transformalign -

• Align, then Transform aligntransform -

Align Operation Order alignopord - ⊞ -

• Scale Translate st -

• Translate Scale ts -

Align Translate X aligntx - ⊞ -

• Off off -

• Origin origin -

• Reference Input reference -

From Input fromx - ⊞ -

• Min min -

• Center center -

• Max max -

To Reference tox - ⊞ -

• Min min -

• Center center -

• Max max -

Align Translate Y alignty - ⊞ -

• Off off -

• Origin origin -

• Reference Input reference -

From Input fromy - ⊞ -

• Min min -

• Center center -

• Max max -

To Reference toy - ⊞ -

• Min min -

• Center center -

• Max max -

Align Translate Z aligntz - ⊞ -

• Off off -

• Origin origin -

• Reference Input reference -

From Input fromz - ⊞ -

• Min min -

• Center center -

• Max max -

To Reference toz - ⊞ -

• Min min -

• Center center -

• Max max -

Align Scale alignscale - ⊞ -

• Per Axis peraxis -

• Unity unity -

• Reference reference -

Align Scale X alignscalex - ⊞ -

• Off off -

• Unity unity -

• Reference Input reference -

• Unity Proportional unityprop -

• Reference Proportional referenceprop -

Align Scale Y alignscaley - ⊞ -

• Off off -

• Unity unity -

• Reference Input reference -

• Unity Proportional unityprop -

• Reference Proportional referenceprop -

Align Scale Z alignscalez - ⊞ -

• Off off -

• Unity unity -

• Reference Input reference -

• Unity Proportional unityprop -

• Reference Proportional referenceprop -

Parameters - Map Page

Mapping map -

OP map0op -

Element map0element -

Parameter map0parm - ⊞ -

• t (Translate) t -

• tx tx -

• ty ty -

• tz tz -

• r (Rotate) r -

• rx rx -

• ry ry -

• rz rz -

• s (Scale) s -

• sx sx -

• sy sy -

• sz sz -

• p (Pivot) p -

• px px -

• py py -

• pz pz -

• scale (Uniform Scale) scale -

Combine Operation map0combineop - ⊞ -

• Set set -

• Multiply mult -

• Add add -

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: -
• Input 1: -

Info CHOP Channels

Extra Information for the Transform 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 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 Family that manipulates text strings: multi-line text or tables. Multi-line text is often a python Script or GLSL Shader, but can be any multi-line text. Tables are rows and columns of cells, each containing a text string.

The 3D data held in SOPs and passed for rendering by the Geometry COMP.

A parameter in most CHOPs that restricts which channels of that CHOP will be affected. Normally all channels of a CHOP are affected by the operator. TOPs have Channel Mask, a similar feature.

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.

A sequence of vertices form a Polygon in a SOP. Each vertex is an integer index into the Point List, and each Point holds an XYZ position and attributes like Normals and Texture Coordinates.

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 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.

Any of the procedural data operators. OPs do all the work in TouchDesigner. They "cook" and output data to other OPs, which ultimately result in new images, data and audio being generated. See Node.

Every operator in TouchDesigner has a set of control Parameters that can be integer or floating point numbers, menus, binary toggles, text strings or operator paths, which determine the output of the operator.

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 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").