`#version 300 es
 
// an attribute is an input (in) to a vertex shader.
// It will receive data from a buffer

//attribute vec4 aVertexPosition;
//in vec4 aVertexPosition;
in vec3 aVertexPosition;

  in vec4 aVertexColor ;
 out vec4 vColor;

    in vec2 aTextureCoord;
    
    out highp vec2 vTextureCoord;

// all shaders have a main function
void main() {
 
  // gl_Position is a special variable a vertex shader
  // is responsible for setting
 //   gl_Position = aVertexPosition ;
   gl_Position = vec4(aVertexPosition , 1.0 ) ;
   vColor = aVertexColor;
    vTextureCoord = aTextureCoord;


  }`