@pixi-essentials/instanced-renderer v0.0.1-alpha.1

@pixi-essentials/instanced-renderer

This packages implements an object renderer that uses instancing to draw the same "base" geometry with different "instanced attributes" like world-transforms.

Usage

import { InstancedRendererPluginFactory } from '@pixi-essentials/instanced-renderer';
import { Renderer, Shader, Geometry, TYPES } from 'pixi.js';

const spriteRenderer = InstancedRendererPluginFactory.from({
    instanceBuilder: {
        aVertexPosition: "_vertexData"
    },
    geometry: new Geometry().
        addAttribute("aVertexPosition", new Float32Array(
            0, 0,
            100, 0,
            100, 100,
            100, 100,
            0, 100,
            0, 0
        ), 2, false, TYPES.FLOAT, 0, 0, true),
    shader: new Shader(
       `
  attribute vec2 aVertexPosition;
  uniform mat3 projectionMatrix;
 
  void main(void)
  {
     gl_Position = vec4((projectionMatrix * vec3(aVertexPosition.xy, 1)).xy, 0, 1);
  }
  `,
  `
  void main(void)
  {
      gl_FragColor = vec4(.5, 1, .2, 1);// some random color
  }
  `,
  {} // you can add uniforms
      )
});

Renderer.registerPlugin('spriteRenderer', spriteRenderer);

const sprite = new Sprite();

// Renders 100x100 squares with random color
sprite.pluginName = 'spriteRenderer';