Jitter Operators

# Jitter Operators

The following Gen operators are unique to the jit.gen , jit.pix , and jit.gl.pix objects - unlike the Common Gen Operators , they are only used in the matrix/texture domain.

## Color

## Coordinate

- cell : Cell coordinates of input matrix [0, dim-1]
- dim : Dimensions of input matrix
- norm : Normalized coordinates of input matrix [0, 1]
- snorm : Signed normalized coordinates of input matrix [-1, 1]

## Quaternion

- qconj : Get the conjugate of a quaternion.
- qmul : Multiply quaternion inputs
- qrot : Rotate a vector by a quaternion. The equation of the rotation is q*v*q^-1.

## Sampling

- nearest : Nearest neighbor sample a matrix at a given coordinate (normalized). Nearest has a boundmode attribute that can be set to wrap, mirror or clamp.
- nearestpix : Nearest neighbor sample a matrix at a given coordinate (in pixels). Nearest has a boundmode attribute that can be set to wrap, mirror or clamp.
- sample : Sample a matrix at a given coordinate (normalized) with linear interpolation. Sample has a boundmode attribute that can be set to wrap, mirror or clamp.
- samplepix : Sample a matrix at a given coordinate (in pixels) with linear interpolation. Pixel centers are located at PIXEL+0.5. For example, the center of the upper-left pixel is (0.5, 0.5). Samplepix has a boundmode attribute that can be set to wrap, mirror or clamp.

## Surface

- circle : Equation of a circle taking input coordinates ranging from [0, 1]
- cone : Equation of a cone taking input coordinates ranging from [0, 1]
- cylinder : Equation of a cylinder taking input coordinates ranging from [0, 1]
- plane : Equation of a plane taking input coordinates ranging from [0, 1]
- sphere : Equation of a sphere taking input coordinates ranging from [0, 1]
- torus : Equation of a torus taking input coordinates ranging from [0, 1]

## Vector

- concat : Concatenate vector values into a larger vector
- cross : Take the cross product of two vectors
- dot : Take the dot product of two vectors
- faceforward : Return a vector pointing in the same direction as another
- length : Returns the length of a vector
- normalize : Normalize a vector to unit length
- reflect : Reflect a vector off a surface defined by a normal
- refract : Refract a vector through a surface defined by a normal and a refraction index
- rotor : Return a quaternion that can rotate the first input into the second.
- swiz : Unpack and remap vector components
- vec : Pack scalar values into a vector