Amazon Sumerian
User Guide

Building a Model Showcase

To showcase the sample model, the example scene uses a state machine and one of the built-in camera types. The state machine waits for user input (click or touch), and triggers one of the animations included in the model at random. The orbit camera type supports both mouse and touch input for orbiting, zooming, and panning.

Example Model Showcase

Use the following procedures to recreate the sample scene.

To add the state machine behavior

  1. Choose the parent entity, and then choose Add component, State machine.

  2. To create a behavior, choose the plus symbol in the state machine panel. Add the following states and actions.

    Example States for triggering animation

    • initializePause animation pauses all animations on the entity. This prevents the default animation from playing when the scene starts. Click/tap on entity transitions to the next state when the user interacts with the model.

    • randomizerRandom transition chooses between two states. Chain multiple randomizer states together to link to all available animations.

    • animateSet animation sets the active animation. After the animation plays for the specified number of loops, it transitions to the next state. Resume animation plays the animation.

    
            State machine behavior for triggering animations

The scene camera has an orbit and pan script that supports the following controls.

Controls

  • Orbit – Right-click and drag, or touch and drag.

  • Pan – Middle-click and drag, or two-finger touch and drag.

  • Zoom – Mouse wheel or pinch.

Add the camera to the scene and configure it to orbit around the origin point, where the model is.

To add the camera

  1. To add a camera to the scene, choose Create entity, Orbit camera.

  2. In the transform component, apply the following settings:

    • X translation5.5

    • Y translation3.5

    • Z translation4

    • X rotation-20

    • Y rotation50

  3. In the camera component, apply the following settings:

    • Main cameraenabled

    • FOV30

  4. In the script component, apply the following setting:

    • Look at distance7.65

The look at distance is the distance from the camera to the model, so the model stays in the center of the screen as you click-drag or touch-drag to move the camera around. If you move the camera to a different starting point, you can recalculate the look at distance by taking the square root of the sum of the squares of the camera's X, Z, and Y translations.

Set the background color in the scene's environment settings.

To set the background color

  1. Choose the root node in the Entities panel.

  2. Expand the Environment section in the inspector panel.

    
          The environment section.
  3. Choose the background color square.

  4. To choose a color, use the color picker or enter a hex or RGB color code. The example scene uses color hex adcac8.

Play the scene in the editor, or publish it.