Reference / Nodes

Post-FX

Image-space effects. Each one takes a texture in, a handful of float parameters, and emits a transformed texture. Chain them; reorder them; the only rule is that order matters, blur-then-glow looks different from glow-then-blur.

All Post-FX nodes share a uniform shape: one texture input, a few floats, and a texture output. Documented per node below.

Blur

blurPostFX

Gaussian blur with separable two-pass kernel.

Inputs

Port	Type	Default	Range	Notes
texture	texture	,	,
radius	float	5	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

The default soft-focus. Big radii hit the GPU hard at 4K, drop the resolution upstream with downsample first if performance dips.

Glow

glowPostFX

Bright-pass plus blur, added back over the original, bloom in three parameters.

Inputs

Port	Type	Default	Range
texture	texture	,	,
intensity	float	1	,
threshold	float	0.5	,
radius	float	8	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Lower the threshold for a smoky overall lift, raise it for a true bloom that only catches highlights.

Color Correction

colorCorrectionPostFX

Brightness, contrast and saturation in one node.

Inputs

Port	Type	Default	Range
texture	texture	,	,
brightness	float	0	,
contrast	float	1	,
saturation	float	1	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

The simplest grading node. For per-channel work or HSL shifts, reach for levels or hslAdjust.

Invert

invertPostFX

Inverts RGB. The amount input crossfades back to the original.

Inputs

Port	Type	Default	Range	Notes
texture	texture	,	,
amount	float	1	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Edge Detect

edgeDetectPostFX

Sobel filter, emits white edges on black.

Inputs

Port	Type	Default	Range	Notes
texture	texture	,	,
strength	float	1	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Stack with blend set to additive over the original to add contour lines without losing the underlying image.

Pixellate

pixellatePostFX

Average-block downsample to fake a low-res look.

Inputs

Port	Type	Default	Range	Notes
texture	texture	,	,
pixelSize	float	8	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Chromatic Aberration

chromaticAberrationPostFX

Splits R, G and B channels along an angle for a lens-fringe artifact.

Inputs

Port	Type	Default	Range
texture	texture	,	,
amount	float	0.01	,
angle	float	0	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Halftone

halftonePostFX

Newspaper-style dot pattern modulated by luminance.

Inputs

Port	Type	Default	Range	Notes
texture	texture	,	,
dotSize	float	4	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Mirror

mirrorPostFX

Mirrors the image around an axis at the chosen angle.

Inputs

Port	Type	Default	Range	Notes
texture	texture	,	,
angle	float	0	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Threshold

thresholdPostFX

Binarises luminance, softness controls the falloff width.

Inputs

Port	Type	Default	Range
texture	texture	,	,
threshold	float	0.5	,
softness	float	0.01	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Tint

tintPostFX

Multiply the image by a color, with an amount for crossfading back to neutral.

Inputs

Port	Type	Default	Range
texture	texture	,	,
color	color	,	,
amount	float	0.5	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Distortion

distortionPostFX

Animated UV distortion driven by an internal noise field.

Inputs

Port	Type	Default	Range
texture	texture	,	,
amount	float	0.05	,
scale	float	4	,
speed	float	1	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

VHS

vhsPostFX

Composite of scanlines, noise and color bleed for a tape-deck look.

Inputs

Port	Type	Default	Range
texture	texture	,	,
scanlines	float	0.3	,
noise	float	0.1	,
colorBleed	float	0.005	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Barrel Distortion

barrelDistortionPostFX

Lens barrel / pincushion warp, positive bulges, negative pinches.

Inputs

Port	Type	Default	Range	Notes
texture	texture	,	,
amount	float	0.3	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Sharpen

sharpenPostFX

Unsharp mask, high-passes the image and adds it back.

Inputs

Port	Type	Default	Range	Notes
texture	texture	,	,
amount	float	1	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Twirl

twirlPostFX

Spiral swirl around the centre. Radius controls how far the swirl reaches.

Inputs

Port	Type	Default	Range
texture	texture	,	,
amount	float	3	,
radius	float	0.5	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Chroma Key

chromaKeyPostFX

Green / blue screen keyer with tolerance, softness and spill suppression.

Inputs

Port	Type	Default	Range
texture	texture	,	,
tolerance	float	0.4	,
softness	float	0.1	,
spillSuppression	float	0.5	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Pick the key color on the inspector. Output alpha can be composited under any texture by feeding both into blend.

Radial Blur

radialBlurPostFX

Zoom-blur radiating from the centre.

Inputs

Port	Type	Default	Range	Notes
texture	texture	,	,
amount	float	0.1	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Film Grain

filmGrainPostFX

Animated luminance noise overlay.

Inputs

Port	Type	Default	Range
texture	texture	,	,
intensity	float	0.15	,
size	float	1.5	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Tritone

tritonePostFX

Maps shadows / midtones / highlights to three picked colors.

Inputs

Port	Type	Default	Range	Notes
texture	texture	,	,
intensity	float	1	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Set the three colors on the inspector. The intensity input crossfades the result back to the source.

Ripple

ripplePostFX

Concentric water-ripple distortion expanding from the centre.

Inputs

Port	Type	Default	Range
texture	texture	,	,
amplitude	float	0.02	,
frequency	float	15	,
speed	float	3	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Polar Warp

polarWarpPostFX

Re-maps the image into polar coordinates. Pair with rotation for a spinning kaleidoscope feel.

Inputs

Port	Type	Default	Range
texture	texture	,	,
rotation	float	0	,
zoom	float	1	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Block Glitch

blockGlitchPostFX

Random horizontal block shifts, datamosh / DV-tape error look.

Inputs

Port	Type	Default	Range
texture	texture	,	,
intensity	float	0.3	,
blockSize	float	0.05	,
speed	float	8	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Dither

ditherPostFX

Ordered (Bayer) dithering at a chosen number of levels.

Inputs

Port	Type	Default	Range
texture	texture	,	,
levels	float	4	,
scale	float	1	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Directional Blur

directionalBlurPostFX

Linear motion blur along an angle.

Inputs

Port	Type	Default	Range
texture	texture	,	,
amount	float	0.02	,
angle	float	0	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Sine Warp

sineWarpPostFX

Independent sine warps along X and Y, wavy heat-haze.

Inputs

Port	Type	Default	Range
texture	texture	,	,
amplitudeX	float	0.03	,
amplitudeY	float	0.03	,
frequencyX	float	5	,
frequencyY	float	5	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Channel Mixer

channelMixerPostFX

Linear matrix mix, the inspector exposes a 4×4 of weights for surgical channel work.

Inputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Use this for tinted black-and-white conversions or for swapping color channels with custom weights. The channelShuffle node in Shading is faster if you only need a permutation.

Dilate

dilatePostFX

Morphological dilation, grows bright regions.

Inputs

Port	Type	Default	Range	Notes
texture	texture	,	,
radius	float	2	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Erode

erodePostFX

Morphological erosion, shrinks bright regions. The opposite of Dilate.

Inputs

Port	Type	Default	Range	Notes
texture	texture	,	,
radius	float	2	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Cross Hatch

crossHatchPostFX

Hatching lines in the dark areas, denser as luminance drops.

Inputs

Port	Type	Default	Range
texture	texture	,	,
lineSpacing	float	5	,
lineWidth	float	1	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Streaks

streaksPostFX

Anamorphic light streaks from bright regions.

Inputs

Port	Type	Default	Range
texture	texture	,	,
threshold	float	0.7	,
streakLength	float	0.15	,
intensity	float	1	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Frame Feedback

frameFeedbackPostFX

Blends the previous output frame back over the current one, temporal trails, smoke, infinite zoom.

Inputs

Port	Type	Default	Range
texture	texture	,	,
decay	float	0.9	,
zoom	float	1	,
rotation	float	0	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

The single most powerful Post-FX in the list. decay below 1 fades trails, exactly 1 holds them, above 1 blows the buffer out, clip with levels downstream when chasing the look.

Emboss

embossPostFX

Directional difference filter, fakes a relief / chiseled look.

Inputs

Port	Type	Default	Range
texture	texture	,	,
strength	float	1	,
angle	float	0.785	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Kaleidoscope

kaleidoscopePostFX

Mirrors a wedge of the image around the centre N times.

Inputs

Port	Type	Default	Range
texture	texture	,	,
segments	float	6	,
rotation	float	0	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Posterize

posterizePostFX

Quantises each channel into a small number of levels.

Inputs

Port	Type	Default	Range	Notes
texture	texture	,	,
levels	float	4	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Solarize

solarizePostFX

Inverts pixels above a threshold, the classic film-overexposure look.

Inputs

Port	Type	Default	Range
texture	texture	,	,
threshold	float	0.5	,
intensity	float	1	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Vignette

vignettePostFX

Darkens the corners. Roundness controls how circular the falloff is.

Inputs

Port	Type	Default	Range
texture	texture	,	,
amount	float	0.5	,
softness	float	0.5	,
roundness	float	1	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Lens Flare

lensFlarePostFX

Procedural lens flare anchored at a screen-space position.

Inputs

Port	Type	Default	Range
texture	texture	,	,
posX	float	0.5	,
posY	float	0.3	,
intensity	float	1	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

God Rays

godRaysPostFX

Volumetric radial smear from a screen-space point, sun-shafts.

Inputs

Port	Type	Default	Range
texture	texture	,	,
posX	float	0.5	,
posY	float	0.5	,
intensity	float	0.5	,
threshold	float	0.5	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

HSL Adjust

hslAdjustPostFX

Hue shift, saturation multiply and lightness offset, surgical color work.

Inputs

Port	Type	Default	Range
texture	texture	,	,
hueShift	float	0	,
saturation	float	1	,
lightness	float	0	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Noise Displace

noiseDisplacePostFX

Animated noise-driven UV displacement of the input texture.

Inputs

Port	Type	Default	Range
texture	texture	,	,
amount	float	0.03	,
scale	float	4	,
speed	float	1	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

The image-space cousin of the 3D noiseDisplace3d modifier. Useful for water shimmer, heat haze and warp transitions.

Scan Lines

scanLinesPostFX

CRT scanline overlay, line count, intensity, optional vertical scroll.

Inputs

Port	Type	Default	Range
texture	texture	,	,
lineCount	float	300	,
intensity	float	0.3	,
speed	float	0	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Tile

tilePostFX

Repeats the texture in a grid with optional UV offset, distinct from the Generator-side Tiles node.

Inputs

Port	Type	Default	Range
texture	texture	,	,
tilesX	float	3	,
tilesY	float	3	,
offsetX	float	0	,
offsetY	float	0	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Color Map

colorMapPostFX

LUT / gradient map, re-colors the image by sampling a palette texture by luminance.

Inputs

Port	Type	Default	Range	Notes
texture	texture	,	,
intensity	float	1	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Pick the gradient on the inspector. The intensity input crossfades back to the original color.

Outline

outlinePostFX

Solid edge stroke around bright regions.

Inputs

Port	Type	Default	Range
texture	texture	,	,
thickness	float	1	,
threshold	float	0.1	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Blend

blendPostFX

Combines two textures with a chosen blend mode and an opacity multiplier.

Inputs

Port	Type	Default	Range
texture	texture	,	,
texture2	texture	,	,
opacity	float	1	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

The blend mode (normal, add, multiply, screen, overlay, etc.) is on the inspector. The most-reached-for compositing primitive in the engine.

Levels

levelsPostFX

Photoshop-style levels, input black, input white and gamma.

Inputs

Port	Type	Default	Range
texture	texture	,	,
inputBlack	float	0	,
inputWhite	float	1	,
gamma	float	1	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Use after a frameFeedback chain to claw back contrast that decay has flattened.

Edge Glow

edgeGlowPostFX

Edge detection with a glow halo, the result reads like neon outlines.

Inputs

Port	Type	Default	Range
texture	texture	,	,
glowIntensity	float	2	,
edgeThreshold	float	0.1	,
glowRadius	float	4	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Liquid Drip

liquidDripPostFX

Viscous liquid dripping from edges with shaded specular highlights.

Inputs

Port	Type	Default	Range
texture	texture	,	,
dripAmount	float	0.5	,
viscosity	float	0.5	,
speed	float	1	,
gravity	float	0.5	,
dripColorR	float	0.6	,
dripColorG	float	0.02	,
dripColorB	float	0.02	,
specular	float	0.8	,
glossiness	float	40	,
lightAngle	float	0.25	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Reads as wax, blood or paint depending on the color and viscosity. Heavy, best stacked late in the chain.

Person Segmentation

personSegmentationPostFX

Vision-framework person mask, outputs the original texture with the background alpha-keyed out.

Inputs

Port	Type	Default	Range
texture	texture	,	,
feather	float	0.5	,
threshold	float	0.5	,
maskBlur	float	4	,

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Runs Apple's on-device person-segmentation model every frame. Pair with liveInput for camera-based green-screen-without-a-greenscreen.

Blob Tracker

blobTrackerVision

Tracks moving or bright blobs in a texture and draws a bounding box around each one, with optional connecting lines.

Inputs

Port	Type	Default	Range	Notes
texture	texture	,	,

Outputs

Port	Type	Default	Range
texture	texture	,	,
overlay	texture	,	,
blobCount	float	,	,
blob1X	float	,	,
blob1Y	float	,	,
blob1Size	float	,	,

Detects blobs, assigns each a persistent ID across frames, and draws a box around it. The texture output passes the source through untouched; overlay is a transparent canvas with just the boxes and lines, composite it back over the video with a blend or feed it to a picture node. Detection runs fully asynchronously (GPU downscale plus a non-blocking readback) so it never stalls the render.

Two detection modes. Motion diffs each frame against the previous one, it finds whatever is moving and ignores anything static (best for video and live camera). Luma thresholds a mono channel, it finds bright regions whether they move or not (best for generators, 3D scenes, and stills). Pick the mono channel (luma / R / G / B) and, in Luma, optionally invert to track dark regions instead.

Tuning. Threshold sets the sensitivity; Min size / Max size filter blobs by their normalized long edge; Max blobs caps how many are kept (largest first). Move dist is the furthest a blob can travel between frames and keep its ID. Rate Hz throttles detection while the boxes glide at render rate, and Smoothing controls that glide (high = snappy, low = trailing). Proc px is the internal processing resolution, lower it if you need more headroom.

Drawing. Toggle the bounding boxes (thickness, padding, color), the connecting lines between blobs (mesh connects every pair within Link dist, nearest each blob to its closest neighbour, chain left-to-right), and a centroid dot. The blobCount and blob1X / blob1Y / blob1Size outputs expose the data (largest blob's centroid and size) to drive the rest of the graph.

Alpha Mask

alphaMaskPostFX

Uses a mask texture's luminance (or alpha) as the alpha of a foreground, optionally composited over a background.

Inputs

Port	Type	Default	Range	Notes
texture	texture	,	,	Foreground - shown inside the mask.
background	texture	,	,	Shown outside the mask. Optional; transparent by default.
mask	texture	,	,	Luminance source (.r, or .a with useAlpha). Null = opaque.
amount	float	1	0 – 1	Masking strength.
feather	float	0	0 – 0.2	Soft edge falloff.
invert	bool	false	,	Flip the mask.
useAlpha	bool	false	,	Sample mask.a instead of mask.r.

Outputs

Port	Type	Default	Range	Notes
texture	texture	,	,

A general matte node with an explicit texture output, so it sits anywhere in a chain like a blend. Feed it a shape, a gradient, or a Vision mask and it carves the foreground to that shape, preserving alpha so downstream compositing stays correct.

Depth Displacement

depthDisplacementPostFX

Per-pixel fractal (FBM) distortion of the source, gated by a depth map so only chosen depths move.

Inputs

Port	Type	Default	Range	Notes
texture	texture	,	,	Source image.
depth	texture	,	,	Depth map (.r) gating displacement strength.
scale	float	0.02	0 – 0.2	Displacement magnitude.
displaceX	float	1	-2 – 2
displaceY	float	1	-2 – 2
frequency	float	4	0.1 – 32	Noise detail.
octaves	float	4	1 – 6	FBM octaves.
speed	float	0.5	-4 – 4	Animation speed (wall-clock).
roughness	float	0.5	0 – 1	Gain between octaves.
depthMin	float	0	0 – 1	Remap depth into a 0–1 mask.
depthMax	float	1	0 – 1
invert	bool	false	,	Invert the depth mask.
chromatic	float	0	0 – 2	RGB-split separation.

A feedback-style Post-FX (no texture output - it writes into the parent’s frame). Pair it with Depth Estimation so the foreground subject melts while the background sits still, or vice versa via invert.