Initialization

Initialization of Rhodonite is simple.

In the Rn.System.init method, specify the process approach and the Canvas to draw to. Don't forget to specify await.

Depending on which process approach is chosen, the internal processing of WebGL differs. For the latest Rhodonite we recommend DataTexture.

await Rn.System.init({
  approach: Rn.ProcessApproach.DataTexture,
  canvas: document.getElementById('world')
};

List of Process Approaches

Type	Characteristics
Uniform	Works with WebGL2. Uses Uniform variables for passing shader parameters, suitable for troubleshooting as you can check the parameters passed to Uniform variables in e.g. specter.js.
DataTexture	Works with WebGL2. Uses floating point textures for passing shader parameters. Normally recommended to use this instead of Uniform.
WebGPU	Works with WebGPU

Summary

The following is a summary of the code up to this point.

// Set up System (specify process approach and pass in canvas)
await Rn.System.init({
  approach: Rn.ProcessApproach.DataTexture,
  canvas: document.getElementById('world')
});

Rhodonite initialization is now complete. Now it is time to create 3D data by writing the necessary data in code or reading it from a file such as glTF, and pass it to the System's process method via an Expression instance for rendering. The specific method is explained on the next page.