Ball with physics.playbook.md

Playbook: Creating a 3D Physics Simulation with Three.js

Overview

This playbook outlines the steps to create a 3D website using Three.js, where a ball bounces on a square plane with real physics. Additionally, it covers the implementation of lighting effects, including making the ball shine and casting shadows on the plane.

Prerequisites

• Node.js and npm installed on machine.
• Installation of the Three.js library via npm.
• Installation of any additional libraries or tools required for your specific project needs (such as physics engine CannonJS).

Procedure

1. Set Up Project Environment

1a. Create a new directory for the project.

1b. Initialize a new npm project .

1c. Install Three.js library .

2. Create HTML Structure

2a. Create a HTML file in the project directory.

2b. Add necessary HTML boilerplate.

3. Implement JavaScript Logic

3a. Create a JavaScript files in the project directory.

3b. Set up Three.js scene, camera, renderer, and controls.

3c. Create a square plane geometry and add it to the scene.

3d. Create a sphere geometry for the bouncing ball and add it to the scene.

3e. Apply physics to the ball using Cannon.js physics engine.

3f. Add lighting to the scene: - Directional light from top-right for casting shadows. - Ambient light for general illumination.

3g. Add material properties to the ball to make it shine.

3h. Configure shadow properties for the plane to receive shadows.

3i. Implement the bouncing behavior of the ball using physics.

4. Style the HTML Page (Optional)

4a. Add CSS styles to enhance the appearance of the webpage.

4b. Style the ball and plane as desired.

5. Test and Debug

5a. Open the project in a web browser.

5b. Use browser developer tools to debug any issues.

6. Deploy and Share

6a. Once satisfied with the simulation, deploy the website and Ensure that it is hosted in a location where users can access them without encountering errors or unavailability.

6b. Share the URL with user to showcase the 3D physics simulation.

Specification

• Realistic physics simulation of a bouncing ball on a square plane.
• Directional light casting shadows from the top-right direction.
• Shining effect applied to the ball.
• Successful deployment of the website with the simulation.

Advice and Pointers

• Refer to Three.js documentation and examples for detailed implementation of features.
• Experiment with different materials, lighting configurations, and physics settings to achieve desired effects.
• Optimize performance by minimizing the number of rendered objects and using appropriate rendering techniques.
• Test the simulation on various devices and browsers to ensure compatibility.
• Consider incorporating user interaction, such as mouse or keyboard controls, to enhance the interactivity of the simulation.
• Keep the code modular and well-organized for easier maintenance and future enhancements.