Introduction to Krokodove Shapes
The Shapes system in Krokodove is a way to create custom 2d vector objects that can be styled and manipulated with other Shape tools. In principle, this works much like Fusion's particle system, with a Create node that generates the shape, any number of other Shape nodes to modify it, and finally either the sRender or ShapeCreate3D node to create raster image or 3D object, respectively, from the vectors.
Shape Create Tools
There are three Create nodes: sPrimitiveCreate has a few preset polygonal shapes, sSpiralCreate makes a spiral, and sTraceCreate generates a Shape from an input raster image. Since all of the Create nodes have some controls in common, we'll describe those first:
The Shading controls only work in tandem with sRender. They are used to determine the appearance of the rendered shape.
Brush Enabled: Toggles the interior fill color.
Brush Color: Controls the color of the interior fill.
Brush Opacity: A multiplier on the color channels. This is distinct from the Alpha control, which when turned down makes the Brush color additive. Opacity is more like a Blend on just the Brush color.
Pen Enabled: Toggles the stroke on the border of the shape.
Pen Color: Controls the color of the stroke.
Pen Opacity: A multiplier on the color channels. This is distinct from the Alpha control, which when turned down makes the Pen color additive. Opacity is more like a Blend on just the Pen color.
Pen Thickness: Controls the width of the Pen line.
Pen Thickness Bias: Controls where the Pen line falls in relation to the edge of the shape. A setting of 1.0 is an external stroke—the line will be completely outside the shape. A value of -1.0 is an internal stroke—the line will fall completely inside the shape. A value of 0 causes the stroke to straddle the edge—half inside and half outside.
Pen Join Type: Controls the shape of the places where line segments meet. Miter is a sharp point, Bevel looks like the point has been chopped off, and Round is… rounded.
Pen End Type: Simple gives a squared-off appearance to the end of a line. Round makes the ends circular.
Pen End Type Roundness: In Round mode, this controls how round the ends are, from completely square, through rounded rectangles, to circular.
Pen Line Type: The stroke can be solid, dashed, dotted, or you can set up a custom dash-dot pattern.
Pen Line Scale: Stretches or squashes the entire pattern, but doesn't affect the thickness. (Thickness does, however affect the scale.)
Pen Line Count: In Custom mode, you can set any number of dashes in the pattern. Each one is numbered and its length and spacing can be controlled individually.
Pen Line Dash x: Controls the length of an individual dash. Reducing the Dash to 0 turns it into a Dot.
Pen Line Space x: Controls the amount of space between this dash and the next.
Transform Position X/Y/Z: Performs a simple translation of the shape prior to rendering or meshing. Note that if rendered with sRender the Transform Position Z control has no effect.
Transform Rotation Order: Determines what axis order the rotations occur in.
Transform Rotation X/Y/Z: Performs a rotation of the shape prior to rendering or meshing. When used with the sRender node, this acts like a "2.5D" rotation, much like the DVE tool. Since it happens before render, changing the rotation can have undesirable interaction with dashed and dotted line styles.
Transform Scale Lock: When on, only the Transform Scale X control will work.
Transform Scale X/Y/Z: Scales the shape prior to rendering or meshing. Like Rotation, this can have undesirable interaction with dashed and dotted line style. And like Translation, Transform Scale Z has no effect on a 2d raster.
sPrimitiveCreate - Shape Primitive Create Tab
Type: The Primitive Create tool can make one of four different shapes: Cross, Polygon, Rectangle or Star. The rest of the controls on this tab change in operation depending on which mode is chosen.
Creates a symmetrical four-armed cross.
Size X: Controls the length of the cross's arms.
Size Y: Controls the width of the cross's arms.
Angle Start: Has no effect. Probably a bug.
Creates a regular polygon.
Size X: Scales the polygon horizontally.
Size Y: Scales the polygon vertically.
Steps: Controls how many sides the polygon has.
Angle Start: Rotates the polygon. Although this control appears at the bottom, the rotation occurs before the scale. To maintain the polygon's aspect, use the Transform Rotation Z control on the Transform tab instead.
Creates a rectangle
Size X/Y: Scales the rectangle.
Creates a star shape.
Size X: Controls the exterior radius—the distance from the center to the end of the star's points.
Size Y: Controls the interior radius—the distance from the center to the base of each wedge.
Steps: Controls how many points the star has.
Angle Start: Rotates the star.
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