A rectangle is a 2D shape in Spark AR Studio. Use it to render textures and materials, creating 2D effects like frames, backgrounds and colored overlays.
We've used rectangles to create a a frame in this tutorial.
To add a rectangle:
You'll see a rectangular shape in the center of the Viewport. A canvas will be added to the Scene panel too:
A rectangle will always be the child of a canvas - either directly, or as a child of another 2D object. If the canvas is in screen space, this means the rectangle will rescale with the size of device's screen.
To create a material for a rectangle:
A flat material will be created by default. Select the material in the Assets panel to adjust its properties. For example to:
When you've selected a rectangle in the Scene panel, you can make changes to it by adjusting its properties in the Inspector. Clicking the circle symbol next to a property will create a patch to represent it in the Patch Editor.
You can also edit rotation, scale and position in the Viewport.
Uncheck this box to stop the rectangle from being rendered in the scene.
Adjust the width and height of the rectangle.
You can also adjust these values to fill the width and height of the parent canvas. To do this:
If you want the rectangle to scale with the width and height of the parent canvas, you'll always need to set Flexibility. Find out more below.
Pinning a rectangle means it will maintain the same distance to its parent's border - however much you transform the parent.
Rectangles can be pinned to the top, bottom, left and right.
Flexibility will scale a rectangle's width and height proportionately to the canvas. So for example, if you double the size of the canvas, the rectangle will double in size too. This means rectangles will stay in proportion on all devices if the canvas is in screen space.
Flexibility needs to be turned on. Do this by clicking the arrows next to Flexibility.
Alignment moves the rectangle around within the parent object. Rectangles can be aligned to the top, center, bottom, left and right.
Change the rectangle's position, scale or rotation.
Create a new material for the rectangle or apply an existing one. Once you've added a material to a rectangle, you can add textures and color to the material to change the appearance of the rectangle in the scene.
When the boxes are checked next to Front Camera and Back Camera the rectangle will be visible through both the front and back camera on a device.
When the boxes are checked next to Preview and Capture the rectangle will be visible both before the person using your effect is capturing a video and during capture.
Insert simple combinations of patches into the Patch Editor, like tap gestures.