Question 1

What is Lumeo?

Accepted Answer

Lumeo is a free 3D video projection simulator. It lets you position projectors and surfaces in a 3D space, visualize the result in real time, and instantly get calculations for distance, image size, pixel size, and illuminance in lux.

Question 2

How does the throw ratio work in Lumeo?

Accepted Answer

The throw ratio is the ratio between the projection distance and the width of the projected image. In Lumeo, you set each projector's throw ratio and the simulator automatically calculates the projected image size based on the distance to the target surface.

Question 3

What is pixel size and why is it important?

Accepted Answer

Pixel size is the physical size of a projected pixel on the surface, expressed in millimeters. A pixel size below 3 mm is excellent, between 3 and 6 mm is good, between 6 and 10 mm is fair. Beyond that, pixelation becomes visible, especially for audiences close to the surface.

Question 4

Is Lumeo free?

Accepted Answer

Yes, Lumeo is completely free and requires no registration. It works directly in your browser (Chrome recommended) and does not collect any personal data.

Lumeo — Free 3D Video Projection Simulator