> ## Documentation Index
> Fetch the complete documentation index at: https://docs.getlight.tech/llms.txt
> Use this file to discover all available pages before exploring further.

# Quickstart

> Turn an image into a 3D model and project it across your displays.

Light SDK takes a 2D image, converts it to a 3D model, and sends it to your projectors.

<Steps>
  <Step title="Ingest a file">
    Drag an image (`PNG`, `JPG`, `AVIF`) or a 3D model (`OBJ`, `GLB`, `GLTF`, `USDZ`) onto the drop zone, or click **Browse…**.
  </Step>

  <Step title="Convert to 3D">
    For an image, pick a model and click **Convert to 3D**. The result is saved to your **Library** for reuse. (Skip this if you uploaded a 3D file.)
  </Step>

  <Step title="Preview">
    Drag to rotate, scroll to zoom. Use the **brightness** slider to light the model.
  </Step>

  <Step title="Choose a projection mode">
    Under **Output**, pick how the model is split across your projectors:

    * **Mirror** — full model sent to two projectors simultaneously.
    * **Front Split** — front half of the model split left/right into one projector.
    * **Front + Back** — front view to Proj 1, back view (rotated 180°) to Proj 2.
  </Step>

  <Step title="Send to projectors">
    Assign each projector picker to a display, then click **Send to Projectors** to go fullscreen.
  </Step>
</Steps>

<Note>
  Two projectors need two **independent** display outputs (e.g. one USB-C + one HDMI). Passive USB-C splitters won't work — the OS treats them as a single display.
</Note>