webgl/public/gl/shader/SimpleShader.js

import { Shader } from '../core/Shader.js'

export const SimpleShader = () => {

    const VertexCode = `
        precision mediump float;

        attribute vec3 position;
        attribute vec3 normal;
        attribute vec3 uv;

        uniform mat4 proj;
        uniform mat4 view;
        uniform mat4 tran;

        varying vec3 color;
        
        void main() {
            color.xyz = (position.xyz + 1.0) / 2.0;
            gl_Position = proj * view * tran * vec4(position, 1.0); 
        }
    `

    const FragmentCode = `
        precision mediump float;

        varying vec3 color;

        void main() {
            gl_FragColor = vec4(color, 1.0);
        }
    `
    return new Shader(VertexCode, FragmentCode)

}