Installed OSL Shaders (Maps)

General OSL Shaders
Shader name	Description
4-point Gradient	Generates gradient based on 4 locations such as TopLeft, BottomRight, etc.
Bitmap Lookup	Looks up a bitmap from UV coordinates through OpenImageIO. Useful to lookup and load UDIM, with ability to see all textures in viewport.
Bitmap Random Tiling	Looks up a bitmap from UV coordinates and modifies each repetition so tiling is not evident. The shader has a mode to properly transform normal maps. It outputs the modified UV so it can be hooked up to other Bitmap Lookup shaders so you can apply the identical randomness, in addition, it outputs the Random Index itself to drive downstream synchronized modifications.
Color Correction	Multi-stage color correction, including channel remapping, hue-range limiting, and three-tone color tinting.
Curves (color)	Transforms an input using an arbitrary curve, that can be used for gradients or as a color correcting tool.
Curves (float)	Transforms an incoming float value to an outgoing value defined by a curve.
Lift/Gamma/Gain	Simple lift/gamma/gain color modifier.
Noise	Generates advances noise.
Noise (3D)	Generates more advanced noise in 3D, for color, vector, or individual component outputs.
Noise (Gabor)	Generates Gabor noise and exposes its specific options.
Randomized Bitmaps	Randomly places (and alpha blends) a set of bitmaps on top of something else.
Simple Gradient	Generates gradient with six inputs. Code can be edited to add more inputs if required.
Tri-tone	Color corrects an input color using highlights/midtones/shadows.
Tweak/Levels	Tweaks a color.
UberBitmap	Loads a bitmap via OpenImageIO. Includes UVW channels and transforms in a monolithic version.
UberNoise	Adds complex types of noise such as Perlin, Fractal, Cell, fBm, and Worley.
Wireframe	Creates a wireframe with a fixed width relative to rendered pixels, with a square every 1x1 unit square in UV space. Tip: Use with a UVW Map and set to 'Face Map' to get a classic wireframe look.

Compositing OSL Shaders
Shader name	Description
Color Key	Simple color key shader for rough green/blue screen keying. Can do simple edge cutoffs in UV space and apply a garbage mask if needed.
Composite	Alpha-composites one color over another.

Environment OSL Shaders
Shader name	Description
Environment/Background Switcher	Uses one map as a background and another as an environment map, to provide environmental reflections.
HDRI Environment	Controls the positioning and final look of the environment both in the viewport and the final render.
HDRI Lights	Places HDR photos of real-world lightsources that dynamically update the scene.

Math OSL Shaders
Subtype	Shader name	Description
Color	Add (color)	Adds and optionally scales two colors.
	Clamp (color)	Clamps a color.
	Color Space	Converts RGB/HSV/YIQ/XYZ/xyY.
	Components (color)	A utility to combine or split components.
	Divide (color)	Divides two colors.
	Interpolate (color)	Interpolates two colors based on a third color.
	Invert (color)	Inverts (complements) a color number (1-input).
	Max (color)	Returns the maximum of two colors.
	Min (color)	Returns the minimum of two colors.
	Mix (color)	Mixes two colors based on a float.
	MultiMixer (color)	Mixes many pairs of color inputs driven by a single Mix input.
	Multiply (color)	Multiplies two colors.
	Random by Index (color)	Returns a randomized color based on an inputted integer index.
	Scale (color)	Multiplies a color by a float
	SmoothStep (color)	A smooth step function between two boundaries.
	Subtract (color)	Subtracts and optionally scales two colors.
Float	Abs	Absolute value of a float.
	ACos	Arc cosine of a float in radians.
	Add	Adds two float numbers (A+B).
	Angle	Angle of a 2D vector in radians.
	ASin	Arc sine of a float in radians.
	ATan	Arc tangent of a float in radians.
	Clamp	Clamps a float.
	Complement	Complements a float number (1-input).
	Cos	Cosine value of an angle in radians.
	Degrees to Radians	Converts degrees to radians.
	Divide	Divides two float numbers (A/B).
	Exp	Computes e^x.
	Float to Int	Turns a float into an integer.
	Interpolate	Interpolates two floats based on a third.
	Log	Computes log_ex.
	LogX	Computes log_basex.
	Maximum	Returns the maximum of two floats.
	Minimum	Returns the minimum of two floats.
	Modulo	Modulo (remainder of division) between two floats.
	Multiply	Multiplies two float numbers (A*B).
	Negate	Negates a float number (-input).
	Power	Raises a float to the power of another float (A^B).
	Radians to Degrees	Converts radians to degrees.
	Random by Index	Returns a randomized float based on an input integer index.
	Range/Remapper	Maps one range of float numbers into another.
	Reciprocal	Reciprocates a float number (1.0/input).
	Sin	Sine value of an angle in radians.
	SmoothStep	A smooth step function between two boundaries.
	Square Root	Computes the square root.
	Subtract	Subtracts two float numbers.
	Tan	Tangent value of an angle in radians.
Vector	Add Vector	Adds and optionally scales two vectors.
	Components (vector)	A utility to combine or split vector components.
	Cross Product (vector)	Cross product between two vectors.
	Distance (vector)	Distance between two points.
	Divide (vector)	Divides two vectors.
	Dot Product (vector)	Dot product between two vectors.
	Invert (vector)	Inverts a vector.
	Length (vector)	Length of a vector.
	Max (vector)	Returns the maximum of two vectors.
	Min (vector)	Returns the minimum of two vectors.
	Mix (vector)	Mixes two vectors based on a float.
	Multiply (vector)	Multiplies two vectors.
	Normalize (vector)	Normalizes a vector.
	Random by Index (vector)	Returns a randomized vector based on an input integer index.
	Scale (vector)	Multiplies a vector by a float.
	Subtract (vector)	Subtracts and optionally scales two vectors.

Projection OSL Shaders
Shader name	Description
Camera Projection	Projects from a camera.
Object Projection	Projects textures in the space of a selected object.
Spherical Projection	Spherically projects textures in the space of a selected object.

Scene Attributes OSL Shaders
Shader name	Description
Frame Number	Returns the current frame number.
Material ID	Returns the Material ID (or the Particle ID for Particles) as a color or a number.
Named Attribute	Returns any named attribute, as well as user-defined per-object properties.
Node Handle	Returns the NodeHandle as a number. Useful for driving a per-object based randomizer.
Node Name/Hash	Returns the node name or its hash for use in randomization.
Normal	Returns the normal in the specified coordinate space.
ObjectID	Returns the object id as set in the Object Properties dialog as a color or a number.
Particle Age	Returns the normalized particle age.
Time (seconds)	Returns the current time in seconds.
Wire Color	Returns the wireframe color.

Switchers OSL Shaders
Shader name	Description
1 of N (color)	Picks one of the numerous inputs.
1 of N (filename)	Picks one of the numerous inputs.
1 of N (float)	Picks one of the numerous inputs.
Compare	Returns different colors/floats depending on whether the two values are less than, equal to, or greater than each other.
Greater Than	Returns two different colors for values that are greater than or not.
Random Index by Number/Color	Returns a random index based on an input number or color.

Textures OSL Shaders
Shader name	Description
Candy	Creates random circles with random colors and a turnable bump output. Useful for random dots or candy sprinkles.
Checker	Creates a simple checkerboard.
Digits	Emulates a 7-segment display of numbers. Useful for debugging and showing numbers in SME.
Halftone Dots	Halftone dots that work well with toon shaders.
Mandelbrot	Generates 4D mandelbrot/julia set.
Rivets	Adds rivets along the edges of UV space in 1x1 squares. Squares can be bent for unevenness.
Simple Tiles	Generates various types of tiling. The Tiling Offset modifies the base parameter of the layout and can generate different effects.
Threads	Generates threads on a bolt. Apply as a bump or displacement to a cylinder.
Toon Width	Toon Edge Width is based on how close the surface normal when converted to screen space is to the given direction.
Weave	Generates a simple threaded weave. Useful for everything from cloth to carbon fiber.

Utility OSL Shaders
Shader name	Description
Blackbody	Modulates a color between two Kelvin temperatures.
Falloff	Generates a value from white to black based on the angular falloff of the face normals.
PBR Mixer	Mixes all parameters for two sets of PBR materials.
Spec/Gloss to Physical	Inputs the specular and glossiness maps from a Spec/Gloss PBR shader.
Waveform (animated)	Generates various animated waveforms. The output wave is the raw value of the waveform, and an interpretation between the two colors.
WaveLength	Modulates a color between two wavelengths of light.

UVW OSL Shaders
Shader name	Description
Named Coord Space	Converts to a named coordinate system.
UVW Channel	Returns a UVW coordinate from a 3ds Max map channel.
UVW Environment	Environment mapping.
UVW MatCap	Generates MatCap UV coordinates. Connects to a Bitmap Lookup containing an image of a MatCap material sphere.
UVW Object Space	Returns an object space coordinate.
UVW Row Offset	Offsets each row of a UVW coordinate in the U direction. Allows you to create effects like stacking bricks.
UVW Transform	Scales, tiles and rotates UVW coordinates.

Values OSL Shaders
Shader name	Description
Color	Returns a color value.
File Name	Returns a filename.
Float	Returns a float value.
Integer	Returns an integer value.
Numbered File Name	Appends a 4 digit number to a filename (for image sequence).
String	Returns a string value.
Vector Value	Returns a vector value.