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

• [x] Pixel Noise
• [x] Perlin and/or Simplex Noise (#1517)
• [x] Voronoi Noise (#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

• [x] #1169
• [x] Extract Alpha
• [x] Extract Opaque

Image adjustments

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

Other adjustments

• [x] Gamma
• [x] Opacity
• [x] #1391 (replace all colors with chosen color, keep alpha)
• [ ] #986
• [ ] Height map to Normal map node

Filters

• [x] #911
• [ ] #995
• [ ] Box blur (a faster, lower-quality alternative to Gaussian Blur)
• [ ] Median
• [ ] Sharpen
• [ ] Dithering (various algorithms, see this discussion)

Vector

• [ ] Convert group containing paths to VectorData path with the shapes as subpaths
• [ ] Metaballs from points-and-radii
• [ ] Offset
• [ ] Convex hull
• [x] #1091
• [x] #1092
• [ ] https://github.com/GraphiteEditor/Graphite/issues/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)
• [x] Spline from Polyline
• [ ] Point/Handle Groups
• [ ] Packing (support for both convex and concave)
• [x] 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
  • [x] #1226 Resample Curves
  • [ ] Reverse Curve
  • [ ] Subdivide Curve
  • [ ] Trim Curve
• [ ] Primitives (from Blender)
  • [ ] Arc
  • [ ] Bezier Segment
  • [x] Curve Circle
  • [x] Curve Line
  • [ ] Curve Spiral (But 2D)
  • [ ] Quadratic Bezier
  • [ ] Quadrilateral [Rectangle, Parallelogram, Trapezoid, Kite, Points]
  • [x] Star
• [ ] Topology (from Blender)
  • [ ] Offset Point in Curve
  • [ ] Curve of Point
  • [ ] Points of Curve

Stroke (Modification)

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

Contour Tool/Node

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

Brush

• [x] #1069
• [ ] Texture
• [ ] Properties (per stroke?)

Generic

• [x] Repeat
• [x] Circular repeat
• [ ] Mirror
• [ ] Scatter

---

Widgets

• [ ] Curves Widget

Instances (from Blender)

• [x] Instance on 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
  • [x] Add
  • [x] Subtract
  • [x] Multiply
  • [x] Divide
  • [ ] Multiply Add
  • [x] Power
  • [x] Logarithm
  • [ ] Square Root
  • [ ] Inverse Square Root - Square ^2?
  • [x] Absolute
  • [x] Exponent
  • [ ] Clamp
  • [ ] Float curve
  • [ ] Map range
• [ ] Comparison
  • [x] Min
  • [x] Max
  • [ ] Less Than
  • [ ] Greater Than
  • [ ] Sign
  • [ ] Compare
  • [ ] Smooth Minimum
  • [ ] Smooth Maximum
• [ ] Rounding
  • [x] Round
  • [x] Floor
  • [x] Ceil
  • [ ] Truncate
  • [ ] Fraction
  • [x] Modulo
  • [ ] Wrap
  • [ ] Snap
  • [ ] Ping-Pong
• [ ] Trigonometric
  • [x] Sine
  • [x] Cosine
  • [x] 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

[giannissc]

A good resource for nodes (vulkan compute shaders) useful in photo editing can be found in vkdt. Also Aurelien's blog has quite a few gems (if you don't mind his language) @Keavon

[Keavon]

Neat, thanks for the resources!