Tracking Issue: New nodes

[Keavon]

This is a living, growing list.

Documentation for making new nodes: https://github.com/GraphiteEditor/Graphite/blob/master/node-graph/README.md

Noise

• Pixel Noise
• Perlin and/or Simplex Noise (Add a coherent noise node (Perlin, Voronoi, etc.) #1517)
• Voronoi Noise (Add a coherent noise node (Perlin, Voronoi, etc.) #1517)

Image Dimensions

• Crop based on margin
• Crop based on top left offset and desired dimensions
• Resize based on scale factor (user to choose interpolation method)
• Resize based on desired resolution (user to choose interpolation method)
• Tile to fill bounds
• Get image dimensions (returns vec2)

Image transformations

• Flip (choose horizontal or vertical)
• Rotate (choose interpolation method and negative space fill)
• Shift image (choose X, Y and negative space fill)

Image channels

• Separate RGBA / Combine RGBA nodes #1169
• Extract Alpha
• Extract Opaque

Image adjustments

• Brightness/Contrast
• Levels
• Curves - requires custom widget
• Exposure
• Vibrance - still needs a Saturation slider
• Hue/Saturation - current algorithm is incorrect
• Color Balance
• Black & White - rename from Grayscale
• Photo Filter
• Channel Mixer
• Color Lookup
• Invert RGB
• Posterize
• Threshold
• Selective Color
• Gradient Map

Other adjustments

• Gamma
• Opacity
• New node: Color Overlay #1391 (replace all colors with chosen color, keep alpha)
• Node to cut an image out from its background and un-blend the translucent pixels #986
• Height map to Normal map node

Filters

• Gaussian Blur and kernel-based nodes #911
• Faster Gaussian blur implementation #995
• Box blur (a faster, lower-quality alternative to Gaussian Blur)
• Median
• Sharpen

Vector

• Convex hull
• Boolean operations node #1091
  • Join
  • Add
  • Subtract
  • Intersect
  • Xor
  • Divide
• Solidify stroke node #1092
• Vector Edit node #1162 Vector Edit (nondestructively apply a queue of operations from the Path tool to an existing shape)
• Polyline Subsurf
• Voronoi from Points (map a point cloud into vector shapes centered at those points forming a Voronoi diagram, with a smoothing option)
• Roughen (amplitude, frequency, absolute/relative to scale, smooth/sharp)
• Spline from Polyline
• Point/Handle Groups
• Area
• Bounding Box (Modification)
  • -> Min (Top Left X,Y)
  • -> Max (Bottom Right X,Y)
• Read (from Blender)
  • Curve Handle Positions
  • Curve Length
  • Curve Tangent
  • Endpoint Selection
  • Handle Type Selection
  • Is Spline Cyclic
  • Spline Length
  • Spline Parameter
  • Spline Resolution
• Sample (from Blender)
  • Sample Curve
• Write (from Blender)
  • Set Curve Normal
  • Set Curve Width
  • Set Curve Radius
  • Set Handle Positions
  • Set Handle Type
  • Set Spline Cyclic
  • Set Resolution
  • Set Spline Type
• Operations (from Blender)
  • Curve to Points
  • Deform Curves on Surface
  • Fillet Curve
  • Interpolate Curves
  • New nodes: Resample Points, Spline from Points #1226 Resample Curves
  • Reverse Curve
  • Subdivide Curve
  • Trim Curve
• Primitives (from Blender)
  • Arc
  • Bezier Segment
  • Curve Circle
  • Curve Line
  • Curve Spiral (But 2D)
  • Quadratic Bezier
  • Quadrilateral [Rectangle, Parallelogram, Trapezoid, Kite, Points]
  • Star
• Topology (from Blender)
  • Offset Point in Curve
  • Curve of Point
  • Points of Curve

Stroke (Modification)

• -> Fill Type [Solid, Gradient, Contour]
• -> Custom Width Profile
• -> Custom Line Join Profile
• -> Custom Line Cap Profile
• -> Align[Center, Inside, Outside]
• Expand Stroke

Contour Tool/Node

• -> Radius
• -> Contour Type[Round, Miter, Bevel, Custom]
• -> Miter
• -> Contour Cap[None, Round, Square]
• -> Contour Fill[Auto Closed, Force Open, Force Closed]
• -> Radius
• -> Contour Type[Round, Concave, Straight, Cutout, Custom]
• -> Selection

Brush

• Brush tool and node #1069
• Texture
• Properties (per stroke?)

Generic

• Repeat
• Circular repeat
• Mirror
• Scatter

---

Widgets

• Curves Widget

Instances (from Blender)

• Instance on Points (New node: Copy to Points #1513)
• Instance to Points
• Realize Instances
• Rotate Instances
• Scale Instances
• Translate Instances
• Instance Rotation
• Instance Scale

Instance Points (from Blender)

• Distribute Points (Image (Should allow to use alpha as a Selection)/Vector)

Utilities

• Color (from Blender)
  • Color Ramp
  • RGB Curves
  • Combine Color
  • Mix Color
  • Separate Color
• String (from Blender)
  • Join Strings / concatinate
  • Replace String
  • Slice String (Index Offset or Text/Regex)
  • String Length
  • String to Curves
  • Value To String
  • Special Characters
    • Text pad (inserts chars either at start or end until length is as desired)
• Vector (from Blender)
  • Vector Curves
  • Vector Math
  • Vector Rotate
  • Combine XY/WH
  • Mix Vector
  • Separate XY/WH

Maths

NOTE: All will have Clamp Option (0.,1.)

• Functions
  • Add
  • Subtract
  • Multiply
  • Divide
  • Multiply Add
  • Power
  • Logarithm
  • Square Root
  • Inverse Square Root - Square ^2?
  • Absolute
  • Exponent
  • Clamp
  • Float curve
  • Map range
• Comparison
  • Min
  • Max
  • Less Than
  • Greater Than
  • Sign
  • Compare
  • Smooth Minimum
  • Smooth Maximum
• Rounding
  • Round
  • Floor
  • Ceil
  • Truncate
  • Fraction
  • Modulo
  • Wrap
  • Snap
  • Ping-Pong
• Trigonometric
  • Sine
  • Cosine
  • Tangent
  • Arcsine
  • Arccosine
  • Arctangent
  • Arctan2
  • Hyperbolic Sine
  • Hyperbolic Cosine
  • Hyperbolic Tangent
• Conversion
  • To Radians
  • To Degrees
• Mix
• Vec2
  • multiply by scalar or vector
  • divide by scalar or vector
  • add
  • subtract
  • length
  • length squared
  • normalise
  • distance between two vectors
  • dot product
  • cross product
  • ceil (per axis)
  • floor (per axis)
  • min (per axis)
  • max (per axis)
  • Linear interpolation (lerp)

Misc (from Blender)

• Random Value
• Switch