Programs Examples
Help & Documents
About LandsCG Programming Made Easy and Fun APIsInfrastructure of Lands ResourcesTextures and Images, etc.
A CGPAD product and service.
APIs

All Lands programs start with a sole global object Lan, we use this object to initialize the canvas and do animations.

1. Canvas Initialization
canvas Raw Canvas canvas2d 2D Canvas canvas3d WebGL Canvas canvasps Pixel Shader canvasfs Fragment Shader canvascs Compute Shader
2. Other APIs
loop Animation Looping import Third-party Library Importation log Write Logs
1. Canvas Initialization

We usually use Lan.canvas** to initialize the canvas before we start to render.

Lan.canvas([width, height])

This method returns a Raw canvas object. You can then get a rendering context of the canvas as you wish.

Lan.canvas2d([width, height, options])

This method returns a 2D canvas object.

Lan.canvas3d([width, height, options, type])

This method returns a WebGL canvas object.

Lan.canvasps([width, height, options])

This method returns a Pixel Shader canvas object.

async Lan.canvasfs([width, height, options])

This method returns a Fragment Shader canvas object. You can then write GLSL shader programs to render.

async Lan.canvascs([width, height, options])

This method returns a Compute Shader canvas object. It's based on WebGPU, and you just write Compute Shaders to render.

After the canvas is initialized, the returned canvas object has these possible properties:

2. Other APIs async Lan.loop(callback, [finish])

This method is usually used for repeated jobs, such as animation. After the loop is ended, we call finish (if provided).

async Lan.import(lib)

We can import third-party JS libraries to Lands. For example, Lan.import('three') would import the three.js library.

Lan.log(msg, [color])

We use this method to write runtime logs.