Rectangle POP

Summary

The Rectangle POP creates a 4-point rectangle with optional rounded corners, and outputs it as a line strip, a pair of triangles, a quad, separate 2-point lines, unconnected point primitives, or without any primitives.

The mode Fill Camera View uses a Camera COMP and extra viewing information (aspect ratio) to put the four points of the rectangle at the corners of the camera view at a certain distance away from the camera. This is useful for rendering a background plate that fills the field of view of a camera, behind the geometry of a scene, or for aligning geometry in the field of view of a camera.

If a POP is connected to the input, it will translate / scale the rectangle to the bounding box of the input. If a POP is connected to the input and if Modify Bounds is set, it will scale / translate the rectangle to the bounding box of the input, and you can further translate/scale/rotate the rectangle.

You can add texture coordinates (Tex), or normal (N) attributes to the points or to the vertices.

Orientation is in the XY plane. The left, middle or right side of the rectangle can be anchored to X=0. Similar for Y, and then the rectangle can be further scaled, rotated and translated.

rectanglePOP_Class

Parameters - Rectangle Page

Connectivity surftype - ⊞ - Determines the primitive used to connect the points.

None none -

Point Primitives point -

Lines lines -

Line Strips linestrips -

Triangles triangles -

Quadrilaterals quads -

Modify Bounds modifybounds - Available only when an input is connected to the POP to set bounds for the POP. When Modify Bounds is On the parameters below will further modify the shape of the POP.

Orientation orient - ⊞ - Sets the rectangle orientation.

XY plane xy -

YZ plane yz -

ZX plane zx -

Fill Camera View cam -

Camera camera - Specify the camera component.

Dist from Camera distfromcam - Sets the distance of the rectangle from the camera when orienting it to face the camera

Camera Aspect cameraaspect - ⊞ - The aspect ratio for the projection.

Camera Aspect cameraaspectx -

Camera Aspect cameraaspecty -

Size size - ⊞ - The geometry 3D size.

Size sizex -

Size sizey -

Round Corners roundcorners - Enable round corners.

Corner Radius cornerradius - Set the corner radius for the round corners rectagle

Corner Sides cornersides - Sets the number of sides on round corners

Anchor U anchoru - Puts the left side, the middle or the right side at the origin 0.

Anchor V anchorv - Puts the bottom side, the middle or the top side at the origin 0.

Translate t - ⊞ - Translate the points in the three axes.

Translate tx -

Translate ty -

Translate tz -

Rotate r - ⊞ - Rotate the points around the corresponding X, Y and Z axes. Angles are given in degrees.

Rotate rx -

Rotate ry -

Rotate rz -

Uniform Scale scale - Specifies a uniform scale factor in all axes.

Normal normal - ⊞ - Choose whether to create a normal attribute and the attribute class of the normal attribute.

None none -

Point pointNormals -

Texture Coordinates texture - ⊞ - Sets the attribute class where the texture coordinates should be created.

None none -

Point point -

Vertex vert -

Texture Fit texturefit - ⊞ - Determines how the texture coordinates are scaled and positioned relative to the rectangle.

Fill fill -

Fit Best best -

Fit Outside outside -

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 Rectangle POP can be accessed via an Info CHOP.

Common POP Info Channels

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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