PIXERA differentiates between stage setup and the content world, screens and perspectives, or inner and outer compositing, and uses different coordinate systems to represent these concepts.

Inner vs Outer Compositing

When you define your stage setup, i.e., the position and size of your screens, you are doing so in the three-dimensional “outer compositing” view.

In PIXERA, screens are actually “windows” into the two-dimensional world of your content. You can define the perspective, i.e., what you see when you look through the window with “inner compositing”. This feature is accessed by clicking the “Dive in” button in the corner of the viewport.

By default, the position of your perspective in the inner compositing view matches with the position of the screen in the outer compositing, just in a different coordinate space.

Screens vs Perspectives

Screens define the placement of dimensions of your surfaces that display content in your stage setup. They are measured in meters and live in the outer compositing.

A screen has a virtual camera that lives in the inner compositing, which looks upon your content. Whatever this virtual camera can see is displayed. This view is called a “perspective”, and you can select and move it in the inner compositing view. The dimension of a perspective is defined in pixels.

Coordinate Spaces and Reference Screen

In the outer compositing, PIXERA works with meters (m), while the inner compositing's space uses pixels (px).

The origin (0,0,0) in the outer compositing space matches with the origin of the inner compositing space. The inner compositing uses a reference screen to define how far a screen ends up from its original position in the stage setup when you move it one pixel in the inner compositing space. Vice versa, when you move a screen 1m, the reference screen defines how far its perspective would have to move in pixels in the inner compositing to match with the outer compositing.

If screen A is your reference screen, is 1m wide, and has a resolution of 1000 pixels in width, then it will be 1000 pixels wide in the inner compositing. If you have another screen B, which is 2m wide, it will be twice the size in the inner compositing, i.e., 2000 pixels (regardless of its actual resolution).

Please note that the output resolution of the final image also depends on the size of any resource assigned to the screens. In the case of the image above, the resource has a resolution of 1920 pixels in width, a section of 640 pixels will be scaled up to fill the 2000 pixels of the left screen, while 1280 pixels will be scaled up to fill the 2000 pixels of the right screen.

Summary of Outer vs Inner Compositing

(d / r) = dimension of screen in meters, divided by dimension of reference screen

Inner Compositing

You can select perspectives in the inner compositing and move them, such that they see a different section of your content. This is useful in many situations. You can put all perspectives at the same position to have multiple displays show the same layer's content. You can also combine multiple displays to show your content seamlessly, without having to align them precisely in the stage setup, as shown below.

You can switch between selecting layers (content) and selecting perspectives with the button at the top of the viewport:

Reset transformed Perspectives

If you moved the perspective of a screen but want it to return to and move along with the physical position of the screen again, you can reset it in the inspector.

You can also reset all perspectives in the current screen group in the inspector of that screen group.

PIXERA 26.1 RC 15  | 25. March 2026 | E.D.