Test Images

Last updated 3 November 2026

Built-in patterns for checking an output before real content exists — grids, colour bars and alignment charts.

Properties

Field	Description
Name	Editable name for the asset.

A test image is generated rather than loaded, so it has no file, no location and no format to set.

Built-in test images show only Name. A custom test image — one made with Create Test Image — also shows the parameters it was created with, listed below by type.

Custom test image parameters

These are the same controls as in the Create Test Image panel for each type. Changing one regenerates the test image, including any copy already playing.

An edit applies when you release the slider or leave the field, and is one undo step.
In the Create Test Image menu, Flat and Dome are under Color Checker, and Idle Animation and Mandelbrot Zoom are under Animations.
If the asset still has the name generated from its parameters — for example Moving Bar Vertical [1920x1920] 1 — the name follows the new parameters. A name you typed is kept.

Grid

Field	Description
Resolution	Width and height of the image, in pixels.
Pixel size per block	Spacing of the thin grid lines, in pixels. 4–64.
Line width	Thickness of the thick grid lines and the image border, in pixels. 1–10.
Thick line rate	Every this-many blocks, a thick line is drawn. 1–10.
Center offset	Gap either side of the horizontal and vertical centre lines, in pixels, filled with the background colour. 0–30.
Background color	Fill colour. Lines are drawn white on a dark background and black on a light one.

Color Checker: Flat

Field	Description
Resolution	Width and height of the image, in pixels.
Tile size	Size of one tile, in pixels. Each coloured square is 8 × 8 tiles. 4–32.
Border size	Border thickness, in pixels. 0–20.
Border color	Border colour, with alpha.
Line size	Thin grid line thickness, in pixels. 1–10.
Line color	Thin grid line colour, with alpha.
Text color	Colour of the numbers, with alpha.
Text min contrast	Minimum visible contrast before the text colour inverts. 0–1.

Color Checker: Dome

Field	Description
Resolution	Width and height of the dome master, in pixels. Always square.
Tile size	Size of one tile, in pixels. Each coloured square is 8 × 8 tiles. 4–32.
Border size	Border thickness, in pixels. 0–20.
Border color	Border colour, with alpha.
Line size	Thin grid line thickness, in pixels. 1–10.
Line color	Thin grid line colour, with alpha.
Text color	Colour of the numbers, with alpha.
Text min contrast	Minimum visible contrast before the text colour inverts. 0–1.
Adaptive Grid	On: the number of columns varies per row, so tiles look square. Off: a uniform grid.

Color RGB

Field	Description
Background color	The single colour the image is filled with.

Moving Bar

Field	Description
Vertical	A vertical bar, moving horizontally.
Horizontal	A horizontal bar, moving vertically. Tick both for two bars. At least one is always ticked: the only ticked box is greyed out until you tick the other.
Resolution	Width and height of the image, in pixels. 16–8192 per side.
Width (%)	Bar width, as a percentage of the image along the direction it moves. 0.1–100.
Step per frame (%)	Distance the bar moves each frame, as a percentage of the image. 0.01–100.
Angle	Turns the movement direction clockwise, -180 to 180 degrees. 0 keeps the bars vertical and horizontal; with two bars both turn together and stay at right angles. The bar still enters and leaves the image completely, and Width (%) and Step per frame (%) are measured along the turned direction.
Repeat	Repeats the bar across the image, with a gap of one bar width.
Yoyo	The bar moves forward and back over two bar widths instead of across the image.
Loop duration (s at 60 Hz)	Time for one full loop at 60 Hz. Setting it changes Step per frame (%). The length of one loop in frames is shown below it.

The bar moves one step per frame of the output, so at a frame rate other than 60 Hz a loop takes proportionally longer or shorter.

Moving Circle

Field	Description
Direction	Outward: a ring grows from the centre of the image and leaves past the corners. Inward: it shrinks from the corners towards the centre.
Resolution	Width and height of the image, in pixels. 16–8192 per side.
Width (%)	Ring width, as a percentage of the distance from the centre to a corner. 0.1–100.
Step per frame (%)	Distance the ring moves each frame, as a percentage of the distance from the centre to a corner. 0.01–100.
Repeat	Repeats the ring, with a gap of one ring width.
Yoyo	The ring moves out and back over two ring widths around the middle of the image instead of across the whole image.
Loop duration (s at 60 Hz)	Time for one full loop at 60 Hz. Setting it changes Step per frame (%). The length of one loop in frames is shown below it.
Spokes	Adds bars that run from the centre of the image to its border and turn about the centre. They are drawn together with the ring. Off by default.
Spoke count	Number of spokes, spread evenly around the centre. 1–16. Shown with Spokes ticked.
Spoke width (%)	Spoke width, as a percentage of the distance from the centre to a corner. 0.1–100. Shown with Spokes ticked.
Rotation per frame (deg)	Degrees the spokes turn each frame: positive turns clockwise, negative counter-clockwise, 0 holds them still. -180 to 180. The frames until the spokes line up with their starting position again are shown below. Shown with Spokes ticked.

The spokes turn one step per frame of the output, like the ring moves, so at a frame rate other than 60 Hz they turn proportionally faster or slower.

Periodic Flash

Field	Description
Flash every (frames)	Frames from one flash to the next. 1–240. The interval at 60 Hz is shown below.
Flash color	Colour of the flash.

Idle Animation

Field	Description
Resolution	Width and height of the image, in pixels. 16–4096 per side. On a wide or tall image the pattern keeps its proportions and extends along the longer side.
Speed (1 = real time at 60 Hz)	Playback pace. 0 stops the animation. 0–10.

Mandelbrot Zoom

An endless zoom into the Mandelbrot set. Each step zooms in and turns by just enough to bring back the same view, so the zoom loops without a visible jump.

Field	Description
Zoom point	Where the zoom heads. Branching Filaments zooms 5.66 times and turns 45 degrees per step. Seahorse Spirals zooms 1.13 times and turns 25 degrees per step, into a tightly wound spiral; it needs more iterations, so it costs more GPU time.
Resolution	Width and height of the image, in pixels. 16–4096 per side. The zoom is framed on the shorter side, so a wide or tall image shows more of the set along the longer side.
Speed	Zoom pace. At 1, a Branching Filaments step takes 4 s and a Seahorse Spirals step 1 s, at 60 Hz; the zoom and time per step are shown below. 0 stops the zoom. 0–10.
Detail (iterations)	How finely the thinnest filaments are resolved, on top of what the zoom point needs. Higher costs more GPU time. 32–2048.

Moving Bar, Moving Circle, Periodic Flash, Idle Animation and Mandelbrot Zoom advance once per output frame, so their timing follows the frame rate.

A test image is the fastest way to separate a content problem from an output problem. If the pattern reaches the screen correctly and the content does not, the fault is upstream of the output — mapping, routing or the asset itself.

Route Projectors and Displays to Outputs (Video Routing) — the routing a test image verifies

Aspect Ratio Correction, Opacity and the rest are on Visual Assets Default Properties.