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983 lines (844 loc) · 52.5 KB
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<!doctype html>
<html>
<head>
<title>WebGL Demo</title>
</head>
<body>
<canvas id="output" width="360" height="360"></canvas>
<br>
<!-- USER INTERFACE -->
<h4>AFFINE TRANSFORMATION</h4>
<button id="translateX">MOVE X</button>
<button id="translateY">MOVE Y</button>
<button id="translate">MOVE</button>
<button id="scale">SCALE</button>
<button id="rotate">ROTATE</button>
<br>
X = <input type="text" id="tx" value="0">
Y = <input type="text" id="ty" value="0">
<br>
SCALE X by = <input type="text" id="Sx" value="0">
SCALE Y by = <input type="text" id="Sy" value="0">
<br>
ROTATION ANGLE = <input type="number" id="deg" value="0">
<br>
<br>
<h4>VIEW TRANSFORMATION</h4>
<b>Viewpoint</b>
<br>
X: <input type="range" id="viewpx" min="-1" max="1" step="0.01" value="0.3">
Y: <input type="range" id="viewpy" min="-1" max="1" step="0.01" value="0.3">
Z: <input type="range" id="viewpz" min="-1" max="1" step="0.01" value="-0.5">
<br>
<b>Center Point</b>
<br>
X: <input type="range" id="centerpx" min="-1" max="1" step="0.01" value="0">
Y: <input type="range" id="centerpy" min="-1" max="1" step="0.01" value="0">
Z: <input type="range" id="centerpz" min="-1" max="1" step="0.01" value="0">
<br>
<b>Up Vector</b>
<br>
X: <input type="range" id="upvx" min="-1" max="1" step="0.01" value="1">
Y: <input type="range" id="upvy" min="-1" max="1" step="0.01" value="0">
Z: <input type="range" id="upvz" min="-1" max="1" step="0.01" value="0">
<br>
<br>
<h4>MODEL TRANSFORMATION</h4>
<b>Translate</b>
<br>
X: <input type="range" id="modelTx" min="-1" max="1" step="0.01" value="0">
Y: <input type="range" id="modelTy" min="-1" max="1" step="0.01" value="0">
Z: <input type="range" id="modelTz" min="-1" max="1" step="0.01" value="0">
<br>
<b>Rotation</b>
<br>
X: <input type="range" id="rotatex" min="-360" max="360" step="10" value="0">
Y: <input type="range" id="rotatey" min="-360" max="360" step="10" value="0">
Z: <input type="range" id="rotatez" min="-360" max="360" step="10" value="0">
<br>
<script src="./utils/gl-matrix.js"></script>
<!-- VERTEX SHADER -->
<script id="vertex-shader" type="notjs">#version 300 es
in vec4 a_position;
in float a_point_size;
//transformation matrix
uniform mat4 u_transformation_matrix_translation;
uniform mat4 u_transformation_matrix_scaling;
uniform mat4 u_transformation_matrix_rotation;
//For view, model, and projection transformations
uniform mat4 u_model_matrix;
uniform mat4 u_view_matrix;
uniform mat4 u_projection_matrix;
void main() {
//Apply the transformations to the object to be rendered
gl_Position = u_transformation_matrix_translation * u_transformation_matrix_scaling * u_transformation_matrix_rotation * u_view_matrix * u_model_matrix * u_projection_matrix * a_position;
}
</script>
<!-- FRAGMENT SHADER -->
<script id="fragment-shader" type="notjs">#version 300 es
precision mediump float;
uniform vec4 u_color;
out vec4 outColor;
void main(void) {
//outColor = vec4(1, 0, 0, 1); //red
outColor = u_color;
}
</script>
<!-- Function for creating and compiling shader programs -->
<script>
function createShader (gl, type, sourceCode) {
// Compiles either a shader of type gl.VERTEX_SHADER or gl.FRAGMENT_SHADER
var shader = gl.createShader( type );
gl.shaderSource( shader, sourceCode );
gl.compileShader( shader );
if ( !gl.getShaderParameter(shader, gl.COMPILE_STATUS) ) {
var info = gl.getShaderInfoLog( shader );
throw 'Could not compile WebGL program. \n\n' + info;
}
return shader;
}
</script>
<!-- Main function contains:
1) declaration of WebGL context
2) function calls to initialize the shader programs
3) declaration and binding of buffer object
4) function calls to perform transformations before drawing
5) draw/redraw functions
-->
<script>
function main() {
const canvas = document.querySelector('#output');
if(!canvas){
console.log("Canvas element with specified ID ('output') cannot be found.");
}
//const gl = initWebGL(canvas, true);
//Setting up the WebGL Context
const gl = canvas.getContext('webgl2');
const vertexShaderSource = document.querySelector('#vertex-shader').text;
const fragmentShaderSource = document.querySelector('#fragment-shader').text;
const vertexShader = createShader(gl, gl.VERTEX_SHADER, vertexShaderSource);
const fragmentShader = createShader(gl, gl.FRAGMENT_SHADER, fragmentShaderSource);
//Creation and initialization of GL program
var program = gl.createProgram();
// Attach pre-existing shaders
gl.attachShader(program, vertexShader);
gl.attachShader(program, fragmentShader);
gl.linkProgram(program);
if ( !gl.getProgramParameter( program, gl.LINK_STATUS) ) {
var info = gl.getProgramInfoLog(program);
throw 'Could not compile WebGL program. \n\n' + info;
}
// set the program created earlier
gl.useProgram(program);
// Declaration of pointers to the attributes
const aPositionPointer = gl.getAttribLocation(program, 'a_position');
const aPointSizePointer = gl.getAttribLocation(program, 'a_point_size');
var colorLocation = gl.getUniformLocation(program, "u_color");
//Used for affine transformation
const uTransformationMatrixPointer_Translation = gl.getUniformLocation(program, 'u_transformation_matrix_translation');
const uTransformationMatrixPointer_Scaling = gl.getUniformLocation(program, 'u_transformation_matrix_scaling');
const uTransformationMatrixPointer_Rotation = gl.getUniformLocation(program, 'u_transformation_matrix_rotation');
const uModelMatrixPointer = gl.getUniformLocation(program, 'u_model_matrix');
const uViewMatrixPointer = gl.getUniformLocation(program, 'u_view_matrix');
const uProjectionMatrixPointer = gl.getUniformLocation(program, 'u_projection_matrix');
const square1_vertices = [
// left cheek
-0.4, 0.0, 0.0, 1.0, -0.43, -0.01, 0.0, 1.0, -0.21, -0.24, 0.0, 1.0,
-0.43, -0.01, 0.0, 1.0, -0.44, -0.05, 0.0, 1.0, -0.21, -0.24, 0.0, 1.0,
-0.44, -0.05, 0.0, 1.0, -0.45, -0.09, 0.0, 1.0, -0.21, -0.24, 0.0, 1.0,
-0.45, -0.09, 0.0, 1.0, -0.47, -0.13, 0.0, 1.0, -0.21, -0.24, 0.0, 1.0,
-0.47, -0.13, 0.0, 1.0, -0.47, -0.17, 0.0, 1.0, -0.21, -0.24, 0.0, 1.0,
-0.47, -0.17, 0.0, 1.0, -0.46, -0.21, 0.0, 1.0, -0.21, -0.24, 0.0, 1.0,
-0.46, -0.21, 0.0, 1.0, -0.45, -0.25, 0.0, 1.0, -0.21, -0.24, 0.0, 1.0,
-0.45, -0.25, 0.0, 1.0, -0.44, -0.29, 0.0, 1.0, -0.21, -0.24, 0.0, 1.0,
-0.44, -0.29, 0.0, 1.0, -0.43, -0.33, 0.0, 1.0, -0.21, -0.24, 0.0, 1.0,
-0.43, -0.33, 0.0, 1.0, -0.41, -0.36, 0.0, 1.0, -0.21, -0.24, 0.0, 1.0,
-0.41, -0.36, 0.0, 1.0, -0.39, -0.39, 0.0, 1.0, -0.21, -0.24, 0.0, 1.0,
-0.39, -0.39, 0.0, 1.0, -0.37, -0.42, 0.0, 1.0, -0.21, -0.24, 0.0, 1.0,
-0.37, -0.42, 0.0, 1.0, -0.35, -0.45, 0.0, 1.0, -0.09, -0.33, 0.0, 1.0,
-0.35, -0.45, 0.0, 1.0, -0.33, -0.48, 0.0, 1.0, -0.09, -0.33, 0.0, 1.0,
-0.33, -0.48, 0.0, 1.0, -0.30, -0.50, 0.0, 1.0, -0.09, -0.33, 0.0, 1.0,
-0.30, -0.50, 0.0, 1.0, -0.27, -0.51, 0.0, 1.0, -0.09, -0.33, 0.0, 1.0,
-0.27, -0.51, 0.0, 1.0, -0.24, -0.52, 0.0, 1.0, -0.09, -0.33, 0.0, 1.0,
-0.24, -0.52, 0.0, 1.0, -0.21, -0.53, 0.0, 1.0, -0.09, -0.33, 0.0, 1.0,
-0.21, -0.53, 0.0, 1.0, -0.18, -0.54, 0.0, 1.0, -0.09, -0.33, 0.0, 1.0,
-0.18, -0.54, 0.0, 1.0, -0.15, -0.55, 0.0, 1.0, -0.09, -0.33, 0.0, 1.0,
-0.15, -0.55, 0.0, 1.0, -0.12, -0.56, 0.0, 1.0, 0.0, -0.44, 0.0, 1.0,
-0.12, -0.56, 0.0, 1.0, -0.09, -0.57, 0.0, 1.0, 0.0, -0.44, 0.0, 1.0,
-0.09, -0.57, 0.0, 1.0, -0.06, -0.58, 0.0, 1.0, 0.0, -0.44, 0.0, 1.0,
-0.06, -0.58, 0.0, 1.0, -0.03, -0.59, 0.0, 1.0, 0.0, -0.44, 0.0, 1.0,
-0.03, -0.59, 0.0, 1.0, -0.0, -0.6, 0.0, 1.0, 0.0, -0.44, 0.0, 1.0,
// right cheek
0.4, 0.0, 0.0, 1.0, 0.43, -0.01, 0.0, 1.0, 0.21, -0.24, 0.0, 1.0,
0.43, -0.01, 0.0, 1.0, 0.44,-0.05, 0.0, 1.0, 0.21, -0.24, 0.0, 1.0,
0.44, -0.05, 0.0, 1.0, 0.45, -0.09, 0.0, 1.0, 0.21, -0.24, 0.0, 1.0,
0.45, -0.09, 0.0, 1.0, 0.47, -0.13, 0.0, 1.0, 0.21, -0.24, 0.0, 1.0,
0.47, -0.13, 0.0, 1.0, 0.47, -0.17, 0.0, 1.0, 0.21, -0.24, 0.0, 1.0,
0.47, -0.17, 0.0, 1.0, 0.46, -0.21, 0.0, 1.0, 0.21, -0.24, 0.0, 1.0,
0.46, -0.21, 0.0, 1.0, 0.45, -0.25, 0.0, 1.0, 0.21, -0.24, 0.0, 1.0,
0.45, -0.25, 0.0, 1.0, 0.44, -0.29, 0.0, 1.0, 0.21, -0.24, 0.0, 1.0,
0.44, -0.29, 0.0, 1.0, 0.43, -0.33, 0.0, 1.0, 0.21, -0.24, 0.0, 1.0,
0.43, -0.33, 0.0, 1.0, 0.41, -0.36, 0.0, 1.0, 0.21, -0.24, 0.0, 1.0,
0.41, -0.36, 0.0, 1.0, 0.39, -0.39, 0.0, 1.0, 0.21, -0.24, 0.0, 1.0,
0.39, -0.39, 0.0, 1.0, 0.37, -0.42, 0.0, 1.0, 0.21, -0.24, 0.0, 1.0,
0.37, -0.42, 0.0, 1.0, 0.35, -0.45, 0.0, 1.0, 0.09, -0.33, 0.0, 1.0,
0.35, -0.45, 0.0, 1.0, 0.33, -0.48, 0.0, 1.0, 0.09, -0.33, 0.0, 1.0,
0.33, -0.48, 0.0, 1.0, 0.30, -0.50, 0.0, 1.0, 0.09, -0.33, 0.0, 1.0,
0.30, -0.50, 0.0, 1.0, 0.27, -0.51, 0.0, 1.0, 0.09, -0.33, 0.0, 1.0,
0.27, -0.51, 0.0, 1.0, 0.24, -0.52, 0.0, 1.0, 0.09, -0.33, 0.0, 1.0,
0.24, -0.52, 0.0, 1.0, 0.21, -0.53, 0.0, 1.0, 0.09, -0.33, 0.0, 1.0,
0.21, -0.53, 0.0, 1.0, 0.18, -0.54, 0.0, 1.0, 0.09, -0.33, 0.0, 1.0,
0.18, -0.54, 0.0, 1.0, 0.15, -0.55, 0.0, 1.0, 0.09, -0.33, 0.0, 1.0,
0.15, -0.55, 0.0, 1.0, 0.12, -0.56, 0.0, 1.0, 0.0, -0.44, 0.0, 1.0,
0.12, -0.56, 0.0, 1.0, 0.09, -0.57, 0.0, 1.0, 0.0, -0.44, 0.0, 1.0,
0.09, -0.57, 0.0, 1.0, 0.06, -0.58, 0.0, 1.0, 0.0, -0.44, 0.0, 1.0,
0.06, -0.58, 0.0, 1.0, 0.03, -0.59, 0.0, 1.0, 0.0, -0.44, 0.0, 1.0,
0.03, -0.59, 0.0, 1.0, 0.0, -0.6, 0.0, 1.0, 0.0, -0.44, 0.0, 1.0,
// left ear
0.0, 0.47, 0.0, 1.0, -0.02, 0.51, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0,
-0.02, 0.51, 0.0, 1.0, -0.03, 0.55, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0,
-0.03, 0.55, 0.0, 1.0, -0.04, 0.59, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0,
-0.04, 0.59, 0.0, 1.0, -0.05, 0.63, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0,
-0.05, 0.63, 0.0, 1.0, -0.08, 0.65, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0,
-0.08, 0.65, 0.0, 1.0, -0.11, 0.63, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0,
-0.11, 0.63, 0.0, 1.0, -0.14, 0.59, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0,
-0.14, 0.59, 0.0, 1.0, -0.17, 0.55, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0,
-0.17, 0.55, 0.0, 1.0, -0.20, 0.51, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0,
-0.20, 0.51, 0.0, 1.0, -0.23, 0.48, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0,
-0.23, 0.48, 0.0, 1.0, -0.25, 0.44, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0,
-0.25, 0.44, 0.0, 1.0, -0.27, 0.4, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0,
-0.27, 0.4, 0.0, 1.0, -0.25, 0.36, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0,
// right ear
0.0, 0.47, 0.0, 1.0, 0.02, 0.51, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0,
0.02, 0.51, 0.0, 1.0, 0.03, 0.55, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0,
0.03, 0.55, 0.0, 1.0, 0.04, 0.59, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0,
0.04, 0.59, 0.0, 1.0, 0.05, 0.63, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0,
0.05, 0.63, 0.0, 1.0, 0.08, 0.65, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0,
0.08, 0.65, 0.0, 1.0, 0.11, 0.63, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0,
0.11, 0.63, 0.0, 1.0, 0.14, 0.59, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0,
0.14, 0.59, 0.0, 1.0, 0.17, 0.55, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0,
0.17, 0.55, 0.0, 1.0, 0.20, 0.51, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0,
0.20, 0.51, 0.0, 1.0, 0.23, 0.48, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0,
0.23, 0.48, 0.0, 1.0, 0.25, 0.44, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0,
0.25, 0.44, 0.0, 1.0, 0.27, 0.4, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0,
0.27, 0.4, 0.0, 1.0, 0.25, 0.36, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0,
// upper head right
0.4, 0.0, 0.0, 1.0, 0.39, 0.04, 0.0, 1.0, 0.28, 0.07, 0.0, 1.0,
0.39, 0.04, 0.0, 1.0, 0.38, 0.08, 0.0, 1.0, 0.28, 0.07, 0.0, 1.0,
0.38, 0.08, 0.0, 1.0, 0.37, 0.12, 0.0, 1.0, 0.28, 0.07, 0.0, 1.0,
0.37, 0.12, 0.0, 1.0, 0.35, 0.16, 0.0, 1.0, 0.28, 0.07, 0.0, 1.0,
0.35, 0.16, 0.0, 1.0, 0.33, 0.2, 0.0, 1.0, 0.28, 0.07, 0.0, 1.0,
0.33, 0.2, 0.0, 1.0, 0.31, 0.24, 0.0, 1.0, 0.28, 0.07, 0.0, 1.0,
0.31, 0.24, 0.0, 1.0, 0.29, 0.28, 0.0, 1.0, 0.28, 0.07, 0.0, 1.0,
0.29, 0.28, 0.0, 1.0, 0.27, 0.32, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0,
0.27, 0.32, 0.0, 1.0, 0.25, 0.36, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0,
0.25, 0.36, 0.0, 1.0, 0.22, 0.38, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0,
0.22, 0.38, 0.0, 1.0, 0.19, 0.4, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0,
0.19, 0.4, 0.0, 1.0, 0.16, 0.42, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0,
0.16, 0.42, 0.0, 1.0, 0.13, 0.44, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0,
0.13, 0.44, 0.0, 1.0, 0.1, 0.46, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0,
0.1, 0.46, 0.0, 1.0, 0.06, 0.47, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0,
0.06, 0.47, 0.0, 1.0, 0.03, 0.47, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0,
0.03, 0.47, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0,
// upper head left
-0.4, 0.0, 0.0, 1.0, -0.39, 0.04, 0.0, 1.0, -0.28, 0.07, 0.0, 1.0,
-0.39, 0.04, 0.0, 1.0, -0.38, 0.08, 0.0, 1.0, -0.28, 0.07, 0.0, 1.0,
-0.38, 0.08, 0.0, 1.0, -0.37, 0.12, 0.0, 1.0, -0.28, 0.07, 0.0, 1.0,
-0.37, 0.12, 0.0, 1.0, -0.35, 0.16, 0.0, 1.0, -0.28, 0.07, 0.0, 1.0,
-0.35, 0.16, 0.0, 1.0, -0.33, 0.2, 0.0, 1.0, -0.28, 0.07, 0.0, 1.0,
-0.33, 0.2, 0.0, 1.0, -0.31, 0.24, 0.0, 1.0, -0.28, 0.07, 0.0, 1.0,
-0.31, 0.24, 0.0, 1.0, -0.29, 0.28, 0.0, 1.0, -0.28, 0.07, 0.0, 1.0,
-0.29, 0.28, 0.0, 1.0, -0.27, 0.32, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0,
-0.27, 0.32, 0.0, 1.0, -0.25, 0.36, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0,
-0.25, 0.36, 0.0, 1.0, -0.22, 0.38, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0,
-0.22, 0.38, 0.0, 1.0, -0.19, 0.4, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0,
-0.19, 0.4, 0.0, 1.0, -0.16, 0.42, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0,
-0.16, 0.42, 0.0, 1.0, -0.13, 0.44, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0,
-0.13, 0.44, 0.0, 1.0, -0.1, 0.46, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0,
-0.1, 0.46, 0.0, 1.0, -0.06, 0.47, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0,
-0.06, 0.47, 0.0, 1.0, -0.03, 0.47, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0,
-0.03, 0.47, 0.0, 1.0, 0.0, 0.47, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0,
// nose
0.0, 0.0, 0.0, 1.0, 0.035, -0.01, 0.0, 1.0, 0.0, -0.15, 0.0, 1.0,
0.0, 0.0, 0.0, 1.0, 0.035, -0.01, 0.0, 1.0, 0.15, 0.145, 0.0, 1.0,
0.0, 0.0, 0.0, 1.0, -0.035, -0.01, 0.0, 1.0, -0.15, 0.145, 0.0, 1.0,
0.035, -0.01, 0.0, 1.0, 0.05, -0.05, 0.0, 1.0, 0.0, -0.15, 0.0, 1.0,
0.05, -0.05, 0.0, 1.0, 0.06, -0.1, 0.0, 1.0, 0.0, -0.15, 0.0, 1.0,
0.06, -0.1, 0.0, 1.0, 0.07, -0.15, 0.0, 1.0, 0.0, -0.15, 0.0, 1.0,
0.07, -0.15, 0.0, 1.0, 0.05, -0.2, 0.0, 1.0, 0.0, -0.15, 0.0, 1.0,
0.05, -0.2, 0.0, 1.0, 0.02, -0.21, 0.0, 1.0, 0.0, -0.15, 0.0, 1.0,
0.02, -0.21, 0.0, 1.0, 0.0, -0.21, 0.0, 1.0, 0.0, -0.15, 0.0, 1.0,
0.035, -0.01, 0.0, 1.0, 0.05, -0.05, 0.0, 1.0, 0.15, 0.035, 0.0, 1.0,
0.05, -0.05, 0.0, 1.0, 0.06, -0.1, 0.0, 1.0, 0.15, 0.035, 0.0, 1.0,
0.06, -0.1, 0.0, 1.0, 0.07, -0.15, 0.0, 1.0, 0.15, 0.035, 0.0, 1.0,
0.07, -0.15, 0.0, 1.0, 0.05, -0.2, 0.0, 1.0, 0.21, -0.24, 0.0, 1.0,
0.05, -0.2, 0.0, 1.0, 0.02, -0.21, 0.0, 1.0, 0.21, -0.24, 0.0, 1.0,
0.0, -0.21, 0.0, 1.0, -0.02, -0.21, 0.0, 1.0, 0.0, -0.15, 0.0, 1.0,
-0.02, -0.21, 0.0, 1.0, -0.05, -0.2, 0.0, 1.0, 0.0, -0.15, 0.0, 1.0,
-0.05, -0.2, 0.0, 1.0, -0.07, -0.15, 0.0, 1.0, 0.0, -0.15, 0.0, 1.0,
-0.07, -0.15, 0.0, 1.0, -0.06, -0.1, 0.0, 1.0, 0.0, -0.15, 0.0, 1.0,
-0.06, -0.1, 0.0, 1.0, -0.05, -0.05, 0.0, 1.0, 0.0, -0.15, 0.0, 1.0,
-0.05, -0.05, 0.0, 1.0, -0.035, -0.01, 0.0, 1.0, 0.0, -0.15, 0.0, 1.0,
-0.035, -0.01, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0, 0.0, -0.15, 0.0, 1.0,
-0.035, -0.01, 0.0, 1.0, -0.05, -0.05, 0.0, 1.0, -0.15, 0.035, 0.0, 1.0,
-0.05, -0.05, 0.0, 1.0, -0.06, -0.1, 0.0, 1.0, -0.15, 0.035, 0.0, 1.0,
-0.06, -0.1, 0.0, 1.0, -0.07, -0.15, 0.0, 1.0, -0.15, 0.035, 0.0, 1.0,
-0.07, -0.15, 0.0, 1.0, -0.05, -0.2, 0.0, 1.0, -0.21, -0.24, 0.0, 1.0,
-0.05, -0.2, 0.0, 1.0, -0.02, -0.21, 0.0, 1.0, -0.21, -0.24, 0.0, 1.0,
// right eye
0.21, 0.0, 0.0, 1.0, 0.24, 0.01, 0.0, 1.0, 0.21, 0.09, 0.0, 1.0,
0.24, 0.01, 0.0, 1.0, 0.27, 0.035, 0.0, 1.0, 0.21, 0.09, 0.0, 1.0,
0.27, 0.035, 0.0, 1.0, 0.28, 0.07, 0.0, 1.0, 0.21, 0.09, 0.0, 1.0,
0.28, 0.07, 0.0, 1.0, 0.28, 0.11, 0.0, 1.0, 0.21, 0.09, 0.0, 1.0,
0.28, 0.11, 0.0, 1.0, 0.27, 0.145, 0.0, 1.0, 0.21, 0.09, 0.0, 1.0,
0.27, 0.145, 0.0, 1.0, 0.24, 0.175, 0.0, 1.0, 0.21, 0.09, 0.0, 1.0,
0.24, 0.175, 0.0, 1.0, 0.21, 0.18, 0.0, 1.0, 0.21, 0.09, 0.0, 1.0,
0.21, 0.18, 0.0, 1.0, 0.18, 0.175, 0.0, 1.0, 0.21, 0.09, 0.0, 1.0,
0.18, 0.175, 0.0, 1.0, 0.15, 0.145, 0.0, 1.0, 0.21, 0.09, 0.0, 1.0,
0.15, 0.145, 0.0, 1.0, 0.14, 0.11, 0.0, 1.0, 0.21, 0.09, 0.0, 1.0,
0.14, 0.11, 0.0, 1.0, 0.14, 0.07, 0.0, 1.0, 0.21, 0.09, 0.0, 1.0,
0.14, 0.07, 0.0, 1.0, 0.15, 0.035, 0.0, 1.0, 0.21, 0.09, 0.0, 1.0,
0.15, 0.035, 0.0, 1.0, 0.18, 0.01, 0.0, 1.0, 0.21, 0.09, 0.0, 1.0,
0.18, 0.01, 0.0, 1.0, 0.21, 0.0, 0.0, 1.0, 0.21, 0.09, 0.0, 1.0,
0.21, 0.0, 0.0, 1.0, 0.24, 0.01, 0.0, 1.0, 0.21, -0.24, 0.0, 1.0,
0.24, 0.01, 0.0, 1.0, 0.27, 0.035, 0.0, 1.0, 0.21, -0.24, 0.0, 1.0,
0.15, 0.035, 0.0, 1.0, 0.18, 0.01, 0.0, 1.0, 0.21, -0.24, 0.0, 1.0,
0.18, 0.01, 0.0, 1.0, 0.21, 0.0, 0.0, 1.0, 0.21, -0.24, 0.0, 1.0,
0.15, 0.145, 0.0, 1.0, 0.14, 0.11, 0.0, 1.0, 0.035, -0.01, 0.0, 1.0,
0.14, 0.11, 0.0, 1.0, 0.14, 0.07, 0.0, 1.0, 0.035, -0.01, 0.0, 1.0,
0.14, 0.07, 0.0, 1.0, 0.15, 0.035, 0.0, 1.0, 0.035, -0.01, 0.0, 1.0,
0.24, 0.175, 0.0, 1.0, 0.21, 0.18, 0.0, 1.0, 0.29, 0.28, 0.0, 1.0,
0.27, 0.145, 0.0, 1.0, 0.24, 0.175, 0.0, 1.0, 0.29, 0.28, 0.0, 1.0,
0.28, 0.11, 0.0, 1.0, 0.27, 0.145, 0.0, 1.0, 0.29, 0.28, 0.0, 1.0,
0.18, 0.175, 0.0, 1.0, 0.21, 0.18, 0.0, 1.0, 0.29, 0.28, 0.0, 1.0,
0.27, 0.035, 0.0, 1.0, 0.28, 0.07, 0.0, 1.0, 0.4, 0.0, 0.0, 1.0,
0.27, 0.035, 0.0, 1.0, 0.4, 0.0, 0.0, 1.0, 0.21, -0.24, 0.0, 1.0,
0.15, 0.035, 0.0, 1.0, 0.21, -0.24, 0.0, 1.0, 0.07, -0.15, 0.0, 1.0,
// left eye
-0.21, 0.0, 0.0, 1.0, -0.24, 0.01, 0.0, 1.0, -0.21, 0.09, 0.0, 1.0,
-0.24, 0.01, 0.0, 1.0, -0.27, 0.035, 0.0, 1.0, -0.21, 0.09, 0.0, 1.0,
-0.27, 0.035, 0.0, 1.0, -0.28, 0.07, 0.0, 1.0, -0.21, 0.09, 0.0, 1.0,
-0.28, 0.07, 0.0, 1.0, -0.28, 0.11, 0.0, 1.0, -0.21, 0.09, 0.0, 1.0,
-0.28, 0.11, 0.0, 1.0, -0.27, 0.145, 0.0, 1.0, -0.21, 0.09, 0.0, 1.0,
-0.27, 0.145, 0.0, 1.0, -0.24, 0.175, 0.0, 1.0, -0.21, 0.09, 0.0, 1.0,
-0.24, 0.175, 0.0, 1.0, -0.21, 0.18, 0.0, 1.0, -0.21, 0.09, 0.0, 1.0,
-0.21, 0.18, 0.0, 1.0, -0.18, 0.175, 0.0, 1.0, -0.21, 0.09, 0.0, 1.0,
-0.18, 0.175, 0.0, 1.0, -0.15, 0.145, 0.0, 1.0, -0.21, 0.09, 0.0, 1.0,
-0.15, 0.145, 0.0, 1.0, -0.14, 0.11, 0.0, 1.0, -0.21, 0.09, 0.0, 1.0,
-0.14, 0.11, 0.0, 1.0, -0.14, 0.07, 0.0, 1.0, -0.21, 0.09, 0.0, 1.0,
-0.14, 0.07, 0.0, 1.0, -0.15, 0.035, 0.0, 1.0, -0.21, 0.09, 0.0, 1.0,
-0.15, 0.035, 0.0, 1.0, -0.18, 0.01, 0.0, 1.0, -0.21, 0.09, 0.0, 1.0,
-0.18, 0.01, 0.0, 1.0, -0.21, 0.0, 0.0, 1.0, -0.21, 0.09, 0.0, 1.0,
-0.21, 0.0, 0.0, 1.0, -0.24, 0.01, 0.0, 1.0, -0.21, -0.24, 0.0, 1.0,
-0.24, 0.01, 0.0, 1.0, -0.27, 0.035, 0.0, 1.0, -0.21, -0.24, 0.0, 1.0,
-0.15, 0.035, 0.0, 1.0, -0.18, 0.01, 0.0, 1.0, -0.21, -0.24, 0.0, 1.0,
-0.18, 0.01, 0.0, 1.0, -0.21, 0.0, 0.0, 1.0, -0.21, -0.24, 0.0, 1.0,
-0.15, 0.145, 0.0, 1.0, -0.14, 0.11, 0.0, 1.0, -0.035, -0.01, 0.0, 1.0,
-0.14, 0.11, 0.0, 1.0, -0.14, 0.07, 0.0, 1.0, -0.035, -0.01, 0.0, 1.0,
-0.14, 0.07, 0.0, 1.0, -0.15, 0.035, 0.0, 1.0, -0.035, -0.01, 0.0, 1.0,
-0.24, 0.175, 0.0, 1.0, -0.21, 0.18, 0.0, 1.0, -0.29, 0.28, 0.0, 1.0,
-0.27, 0.145, 0.0, 1.0, -0.24, 0.175, 0.0, 1.0, -0.29, 0.28, 0.0, 1.0,
-0.28, 0.11, 0.0, 1.0, -0.27, 0.145, 0.0, 1.0, -0.29, 0.28, 0.0, 1.0,
-0.18, 0.175, 0.0, 1.0, -0.21, 0.18, 0.0, 1.0, -0.29, 0.28, 0.0, 1.0,
-0.27, 0.035, 0.0, 1.0, -0.28, 0.07, 0.0, 1.0, -0.4, 0.0, 0.0, 1.0,
-0.27, 0.035, 0.0, 1.0, -0.4, 0.0, 0.0, 1.0, -0.21, -0.24, 0.0, 1.0,
-0.15, 0.035, 0.0, 1.0, -0.21, -0.24, 0.0, 1.0, -0.07, -0.15, 0.0, 1.0,
// lower lip left
0.0, -0.44, 0.0, 1.0, -0.03, -0.43, 0.0, 1.0, 0.0, -0.3, 0.0, 1.0,
-0.03, -0.43, 0.0, 1.0, -0.05, -0.40, 0.0, 1.0, 0.0, -0.3, 0.0, 1.0,
-0.05, -0.40, 0.0, 1.0, -0.07, -0.37, 0.0, 1.0, 0.0, -0.3, 0.0, 1.0,
-0.07, -0.37, 0.0, 1.0, -0.09, -0.33, 0.0, 1.0, 0.0, -0.3, 0.0, 1.0,
0.0, -0.44, 0.0, 1.0, -0.03, -0.43, 0.0, 1.0, -0.15, -0.55, 0.0, 1.0,
-0.03, -0.43, 0.0, 1.0, -0.05, -0.40, 0.0, 1.0, -0.15, -0.55, 0.0, 1.0,
-0.05, -0.40, 0.0, 1.0, -0.07, -0.37, 0.0, 1.0, -0.15, -0.55, 0.0, 1.0,
-0.07, -0.37, 0.0, 1.0, -0.09, -0.33, 0.0, 1.0, -0.15, -0.55, 0.0, 1.0,
// lower lip right
0.0, -0.44, 0.0, 1.0, 0.03, -0.43, 0.0, 1.0, 0.0, -0.3, 0.0, 1.0,
0.03, -0.43, 0.0, 1.0, 0.05, -0.40, 0.0, 1.0, 0.0, -0.3, 0.0, 1.0,
0.05, -0.40, 0.0, 1.0, 0.07, -0.37, 0.0, 1.0, 0.0, -0.3, 0.0, 1.0,
0.07, -0.37, 0.0, 1.0, 0.09, -0.33, 0.0, 1.0, 0.0, -0.3, 0.0, 1.0,
0.0, -0.44, 0.0, 1.0, 0.03, -0.43, 0.0, 1.0, 0.15, -0.55, 0.0, 1.0,
0.03, -0.43, 0.0, 1.0, 0.05, -0.40, 0.0, 1.0, 0.15, -0.55, 0.0, 1.0,
0.05, -0.40, 0.0, 1.0, 0.07, -0.37, 0.0, 1.0, 0.15, -0.55, 0.0, 1.0,
0.07, -0.37, 0.0, 1.0, 0.09, -0.33, 0.0, 1.0, 0.15, -0.55, 0.0, 1.0,
// upper lip right
0.0, -0.3, 0.0, 1.0, 0.03, -0.32, 0.0, 1.0, 0.0, -0.21, 0.0, 1.0,
0.03, -0.32, 0.0, 1.0, 0.06, -0.33, 0.0, 1.0, 0.0, -0.21, 0.0, 1.0,
0.06, -0.33, 0.0, 1.0, 0.09, -0.33, 0.0, 1.0, 0.0, -0.21, 0.0, 1.0,
0.09, -0.33, 0.0, 1.0, 0.12, -0.32, 0.0, 1.0, 0.0, -0.21, 0.0, 1.0,
0.12, -0.32, 0.0, 1.0, 0.15, -0.3, 0.0, 1.0, 0.0, -0.21, 0.0, 1.0,
0.15, -0.3, 0.0, 1.0, 0.18, -0.27, 0.0, 1.0, 0.0, -0.21, 0.0, 1.0,
0.18, -0.27, 0.0, 1.0, 0.21, -0.24, 0.0, 1.0, 0.0, -0.21, 0.0, 1.0,
0.09, -0.33, 0.0, 1.0, 0.12, -0.32, 0.0, 1.0, 0.37, -0.42, 0.0, 1.0,
0.12, -0.32, 0.0, 1.0, 0.15, -0.3, 0.0, 1.0, 0.37, -0.42, 0.0, 1.0,
0.15, -0.3, 0.0, 1.0, 0.18, -0.27, 0.0, 1.0, 0.37, -0.42, 0.0, 1.0,
0.18, -0.27, 0.0, 1.0, 0.21, -0.24, 0.0, 1.0, 0.37, -0.42, 0.0, 1.0,
// upper lip left
0.0, -0.3, 0.0, 1.0, -0.03, -0.32, 0.0, 1.0, 0.0, -0.21, 0.0, 1.0,
-0.03, -0.32, 0.0, 1.0, -0.06, -0.33, 0.0, 1.0, 0.0, -0.21, 0.0, 1.0,
-0.06, -0.33, 0.0, 1.0, -0.09, -0.33, 0.0, 1.0, 0.0, -0.21, 0.0, 1.0,
-0.09, -0.33, 0.0, 1.0, -0.12, -0.32, 0.0, 1.0, 0.0, -0.21, 0.0, 1.0,
-0.12, -0.32, 0.0, 1.0, -0.15, -0.3, 0.0, 1.0, 0.0, -0.21, 0.0, 1.0,
-0.15, -0.3, 0.0, 1.0, -0.18, -0.27, 0.0, 1.0, 0.0, -0.21, 0.0, 1.0,
-0.18, -0.27, 0.0, 1.0, -0.21, -0.24, 0.0, 1.0, 0.0, -0.21, 0.0, 1.0,
-0.09, -0.33, 0.0, 1.0, -0.12, -0.32, 0.0, 1.0, -0.37, -0.42, 0.0, 1.0,
-0.12, -0.32, 0.0, 1.0, -0.15, -0.3, 0.0, 1.0, -0.37, -0.42, 0.0, 1.0,
-0.15, -0.3, 0.0, 1.0, -0.18, -0.27, 0.0, 1.0, -0.37, -0.42, 0.0, 1.0,
-0.18, -0.27, 0.0, 1.0, -0.21, -0.24, 0.0, 1.0, -0.37, -0.42, 0.0, 1.0,
];
const color1 = [0, 1, 0, 1];
const square2_vertices = [
// left cheek
-0.4, 0.0, 0.25, 1.0, -0.43, -0.01, 0.25, 1.0, -0.21, -0.24, 0.25, 1.0,
-0.43, -0.01, 0.25, 1.0, -0.44, -0.05, 0.25, 1.0, -0.21, -0.24, 0.25, 1.0,
-0.44, -0.05, 0.25, 1.0, -0.45, -0.09, 0.25, 1.0, -0.21, -0.24, 0.25, 1.0,
-0.45, -0.09, 0.25, 1.0, -0.47, -0.13, 0.25, 1.0, -0.21, -0.24, 0.25, 1.0,
-0.47, -0.13, 0.25, 1.0, -0.47, -0.17, 0.25, 1.0, -0.21, -0.24, 0.25, 1.0,
-0.47, -0.17, 0.25, 1.0, -0.46, -0.21, 0.25, 1.0, -0.21, -0.24, 0.25, 1.0,
-0.46, -0.21, 0.25, 1.0, -0.45, -0.25, 0.25, 1.0, -0.21, -0.24, 0.25, 1.0,
-0.45, -0.25, 0.25, 1.0, -0.44, -0.29, 0.25, 1.0, -0.21, -0.24, 0.25, 1.0,
-0.44, -0.29, 0.25, 1.0, -0.43, -0.33, 0.25, 1.0, -0.21, -0.24, 0.25, 1.0,
-0.43, -0.33, 0.25, 1.0, -0.41, -0.36, 0.25, 1.0, -0.21, -0.24, 0.25, 1.0,
-0.41, -0.36, 0.25, 1.0, -0.39, -0.39, 0.25, 1.0, -0.21, -0.24, 0.25, 1.0,
-0.39, -0.39, 0.25, 1.0, -0.37, -0.42, 0.25, 1.0, -0.21, -0.24, 0.25, 1.0,
-0.37, -0.42, 0.25, 1.0, -0.35, -0.45, 0.25, 1.0, -0.09, -0.33, 0.25, 1.0,
-0.35, -0.45, 0.25, 1.0, -0.33, -0.48, 0.25, 1.0, -0.09, -0.33, 0.25, 1.0,
-0.33, -0.48, 0.25, 1.0, -0.30, -0.50, 0.25, 1.0, -0.09, -0.33, 0.25, 1.0,
-0.30, -0.50, 0.25, 1.0, -0.27, -0.51, 0.25, 1.0, -0.09, -0.33, 0.25, 1.0,
-0.27, -0.51, 0.25, 1.0, -0.24, -0.52, 0.25, 1.0, -0.09, -0.33, 0.25, 1.0,
-0.24, -0.52, 0.25, 1.0, -0.21, -0.53, 0.25, 1.0, -0.09, -0.33, 0.25, 1.0,
-0.21, -0.53, 0.25, 1.0, -0.18, -0.54, 0.25, 1.0, -0.09, -0.33, 0.25, 1.0,
-0.18, -0.54, 0.25, 1.0, -0.15, -0.55, 0.25, 1.0, -0.09, -0.33, 0.25, 1.0,
-0.15, -0.55, 0.25, 1.0, -0.12, -0.56, 0.25, 1.0, 0.0, -0.44, 0.25, 1.0,
-0.12, -0.56, 0.25, 1.0, -0.09, -0.57, 0.25, 1.0, 0.0, -0.44, 0.25, 1.0,
-0.09, -0.57, 0.25, 1.0, -0.06, -0.58, 0.25, 1.0, 0.0, -0.44, 0.25, 1.0,
-0.06, -0.58, 0.25, 1.0, -0.03, -0.59, 0.25, 1.0, 0.0, -0.44, 0.25, 1.0,
-0.03, -0.59, 0.25, 1.0, -0.0, -0.6, 0.25, 1.0, 0.0, -0.44, 0.25, 1.0,
// right cheek
0.4, 0.0, 0.25, 1.0, 0.43, -0.01, 0.25, 1.0, 0.21, -0.24, 0.25, 1.0,
0.43, -0.01, 0.25, 1.0, 0.44,-0.05, 0.25, 1.0, 0.21, -0.24, 0.25, 1.0,
0.44, -0.05, 0.25, 1.0, 0.45, -0.09, 0.25, 1.0, 0.21, -0.24, 0.25, 1.0,
0.45, -0.09, 0.25, 1.0, 0.47, -0.13, 0.25, 1.0, 0.21, -0.24, 0.25, 1.0,
0.47, -0.13, 0.25, 1.0, 0.47, -0.17, 0.25, 1.0, 0.21, -0.24, 0.25, 1.0,
0.47, -0.17, 0.25, 1.0, 0.46, -0.21, 0.25, 1.0, 0.21, -0.24, 0.25, 1.0,
0.46, -0.21, 0.25, 1.0, 0.45, -0.25, 0.25, 1.0, 0.21, -0.24, 0.25, 1.0,
0.45, -0.25, 0.25, 1.0, 0.44, -0.29, 0.25, 1.0, 0.21, -0.24, 0.25, 1.0,
0.44, -0.29, 0.25, 1.0, 0.43, -0.33, 0.25, 1.0, 0.21, -0.24, 0.25, 1.0,
0.43, -0.33, 0.25, 1.0, 0.41, -0.36, 0.25, 1.0, 0.21, -0.24, 0.25, 1.0,
0.41, -0.36, 0.25, 1.0, 0.39, -0.39, 0.25, 1.0, 0.21, -0.24, 0.25, 1.0,
0.39, -0.39, 0.25, 1.0, 0.37, -0.42, 0.25, 1.0, 0.21, -0.24, 0.25, 1.0,
0.37, -0.42, 0.25, 1.0, 0.35, -0.45, 0.25, 1.0, 0.09, -0.33, 0.25, 1.0,
0.35, -0.45, 0.25, 1.0, 0.33, -0.48, 0.25, 1.0, 0.09, -0.33, 0.25, 1.0,
0.33, -0.48, 0.25, 1.0, 0.30, -0.50, 0.25, 1.0, 0.09, -0.33, 0.25, 1.0,
0.30, -0.50, 0.25, 1.0, 0.27, -0.51, 0.25, 1.0, 0.09, -0.33, 0.25, 1.0,
0.27, -0.51, 0.25, 1.0, 0.24, -0.52, 0.25, 1.0, 0.09, -0.33, 0.25, 1.0,
0.24, -0.52, 0.25, 1.0, 0.21, -0.53, 0.25, 1.0, 0.09, -0.33, 0.25, 1.0,
0.21, -0.53, 0.25, 1.0, 0.18, -0.54, 0.25, 1.0, 0.09, -0.33, 0.25, 1.0,
0.18, -0.54, 0.25, 1.0, 0.15, -0.55, 0.25, 1.0, 0.09, -0.33, 0.25, 1.0,
0.15, -0.55, 0.25, 1.0, 0.12, -0.56, 0.25, 1.0, 0.0, -0.44, 0.25, 1.0,
0.12, -0.56, 0.25, 1.0, 0.09, -0.57, 0.25, 1.0, 0.0, -0.44, 0.25, 1.0,
0.09, -0.57, 0.25, 1.0, 0.06, -0.58, 0.25, 1.0, 0.0, -0.44, 0.25, 1.0,
0.06, -0.58, 0.25, 1.0, 0.03, -0.59, 0.25, 1.0, 0.0, -0.44, 0.25, 1.0,
0.03, -0.59, 0.25, 1.0, 0.0, -0.6, 0.25, 1.0, 0.0, -0.44, 0.25, 1.0,
// left ear
0.0, 0.47, 0.25, 1.0, -0.02, 0.51, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0,
-0.02, 0.51, 0.25, 1.0, -0.03, 0.55, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0,
-0.03, 0.55, 0.25, 1.0, -0.04, 0.59, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0,
-0.04, 0.59, 0.25, 1.0, -0.05, 0.63, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0,
-0.05, 0.63, 0.25, 1.0, -0.08, 0.65, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0,
-0.08, 0.65, 0.25, 1.0, -0.11, 0.63, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0,
-0.11, 0.63, 0.25, 1.0, -0.14, 0.59, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0,
-0.14, 0.59, 0.25, 1.0, -0.17, 0.55, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0,
-0.17, 0.55, 0.25, 1.0, -0.20, 0.51, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0,
-0.20, 0.51, 0.25, 1.0, -0.23, 0.48, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0,
-0.23, 0.48, 0.25, 1.0, -0.25, 0.44, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0,
-0.25, 0.44, 0.25, 1.0, -0.27, 0.4, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0,
-0.27, 0.4, 0.25, 1.0, -0.25, 0.36, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0,
// right ear
0.0, 0.47, 0.25, 1.0, 0.02, 0.51, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0,
0.02, 0.51, 0.25, 1.0, 0.03, 0.55, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0,
0.03, 0.55, 0.25, 1.0, 0.04, 0.59, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0,
0.04, 0.59, 0.25, 1.0, 0.05, 0.63, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0,
0.05, 0.63, 0.25, 1.0, 0.08, 0.65, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0,
0.08, 0.65, 0.25, 1.0, 0.11, 0.63, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0,
0.11, 0.63, 0.25, 1.0, 0.14, 0.59, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0,
0.14, 0.59, 0.25, 1.0, 0.17, 0.55, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0,
0.17, 0.55, 0.25, 1.0, 0.20, 0.51, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0,
0.20, 0.51, 0.25, 1.0, 0.23, 0.48, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0,
0.23, 0.48, 0.25, 1.0, 0.25, 0.44, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0,
0.25, 0.44, 0.25, 1.0, 0.27, 0.4, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0,
0.27, 0.4, 0.25, 1.0, 0.25, 0.36, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0,
// upper head right
0.4, 0.0, 0.25, 1.0, 0.39, 0.04, 0.25, 1.0, 0.28, 0.07, 0.25, 1.0,
0.39, 0.04, 0.25, 1.0, 0.38, 0.08, 0.25, 1.0, 0.28, 0.07, 0.25, 1.0,
0.38, 0.08, 0.25, 1.0, 0.37, 0.12, 0.25, 1.0, 0.28, 0.07, 0.25, 1.0,
0.37, 0.12, 0.25, 1.0, 0.35, 0.16, 0.25, 1.0, 0.28, 0.07, 0.25, 1.0,
0.35, 0.16, 0.25, 1.0, 0.33, 0.2, 0.25, 1.0, 0.28, 0.07, 0.25, 1.0,
0.33, 0.2, 0.25, 1.0, 0.31, 0.24, 0.25, 1.0, 0.28, 0.07, 0.25, 1.0,
0.31, 0.24, 0.25, 1.0, 0.29, 0.28, 0.25, 1.0, 0.28, 0.07, 0.25, 1.0,
0.29, 0.28, 0.25, 1.0, 0.27, 0.32, 0.25, 1.0, 0.0, 0.0, 0.25, 1.0,
0.27, 0.32, 0.25, 1.0, 0.25, 0.36, 0.25, 1.0, 0.0, 0.0, 0.25, 1.0,
0.25, 0.36, 0.25, 1.0, 0.22, 0.38, 0.25, 1.0, 0.0, 0.0, 0.25, 1.0,
0.22, 0.38, 0.25, 1.0, 0.19, 0.4, 0.25, 1.0, 0.0, 0.0, 0.25, 1.0,
0.19, 0.4, 0.25, 1.0, 0.16, 0.42, 0.25, 1.0, 0.0, 0.0, 0.25, 1.0,
0.16, 0.42, 0.25, 1.0, 0.13, 0.44, 0.25, 1.0, 0.0, 0.0, 0.25, 1.0,
0.13, 0.44, 0.25, 1.0, 0.1, 0.46, 0.25, 1.0, 0.0, 0.0, 0.25, 1.0,
0.1, 0.46, 0.25, 1.0, 0.06, 0.47, 0.25, 1.0, 0.0, 0.0, 0.25, 1.0,
0.06, 0.47, 0.25, 1.0, 0.03, 0.47, 0.25, 1.0, 0.0, 0.0, 0.25, 1.0,
0.03, 0.47, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0, 0.0, 0.0, 0.25, 1.0,
// upper head left
-0.4, 0.0, 0.25, 1.0, -0.39, 0.04, 0.25, 1.0, -0.28, 0.07, 0.25, 1.0,
-0.39, 0.04, 0.25, 1.0, -0.38, 0.08, 0.25, 1.0, -0.28, 0.07, 0.25, 1.0,
-0.38, 0.08, 0.25, 1.0, -0.37, 0.12, 0.25, 1.0, -0.28, 0.07, 0.25, 1.0,
-0.37, 0.12, 0.25, 1.0, -0.35, 0.16, 0.25, 1.0, -0.28, 0.07, 0.25, 1.0,
-0.35, 0.16, 0.25, 1.0, -0.33, 0.2, 0.25, 1.0, -0.28, 0.07, 0.25, 1.0,
-0.33, 0.2, 0.25, 1.0, -0.31, 0.24, 0.25, 1.0, -0.28, 0.07, 0.25, 1.0,
-0.31, 0.24, 0.25, 1.0, -0.29, 0.28, 0.25, 1.0, -0.28, 0.07, 0.25, 1.0,
-0.29, 0.28, 0.25, 1.0, -0.27, 0.32, 0.25, 1.0, 0.0, 0.0, 0.25, 1.0,
-0.27, 0.32, 0.25, 1.0, -0.25, 0.36, 0.25, 1.0, 0.0, 0.0, 0.25, 1.0,
-0.25, 0.36, 0.25, 1.0, -0.22, 0.38, 0.25, 1.0, 0.0, 0.0, 0.25, 1.0,
-0.22, 0.38, 0.25, 1.0, -0.19, 0.4, 0.25, 1.0, 0.0, 0.0, 0.25, 1.0,
-0.19, 0.4, 0.25, 1.0, -0.16, 0.42, 0.25, 1.0, 0.0, 0.0, 0.25, 1.0,
-0.16, 0.42, 0.25, 1.0, -0.13, 0.44, 0.25, 1.0, 0.0, 0.0, 0.25, 1.0,
-0.13, 0.44, 0.25, 1.0, -0.1, 0.46, 0.25, 1.0, 0.0, 0.0, 0.25, 1.0,
-0.1, 0.46, 0.25, 1.0, -0.06, 0.47, 0.25, 1.0, 0.0, 0.0, 0.25, 1.0,
-0.06, 0.47, 0.25, 1.0, -0.03, 0.47, 0.25, 1.0, 0.0, 0.0, 0.25, 1.0,
-0.03, 0.47, 0.25, 1.0, 0.0, 0.47, 0.25, 1.0, 0.0, 0.0, 0.25, 1.0,
// nose
0.0, 0.0, 0.25, 1.0, 0.035, -0.01, 0.25, 1.0, 0.0, -0.15, 0.25, 1.0,
0.0, 0.0, 0.25, 1.0, 0.035, -0.01, 0.25, 1.0, 0.15, 0.145, 0.25, 1.0,
0.0, 0.0, 0.25, 1.0, -0.035, -0.01, 0.25, 1.0, -0.15, 0.145, 0.25, 1.0,
0.035, -0.01, 0.25, 1.0, 0.05, -0.05, 0.25, 1.0, 0.0, -0.15, 0.25, 1.0,
0.05, -0.05, 0.25, 1.0, 0.06, -0.1, 0.25, 1.0, 0.0, -0.15, 0.25, 1.0,
0.06, -0.1, 0.25, 1.0, 0.07, -0.15, 0.25, 1.0, 0.0, -0.15, 0.25, 1.0,
0.07, -0.15, 0.25, 1.0, 0.05, -0.2, 0.25, 1.0, 0.0, -0.15, 0.25, 1.0,
0.05, -0.2, 0.25, 1.0, 0.02, -0.21, 0.25, 1.0, 0.0, -0.15, 0.25, 1.0,
0.02, -0.21, 0.25, 1.0, 0.0, -0.21, 0.25, 1.0, 0.0, -0.15, 0.25, 1.0,
0.035, -0.01, 0.25, 1.0, 0.05, -0.05, 0.25, 1.0, 0.15, 0.035, 0.25, 1.0,
0.05, -0.05, 0.25, 1.0, 0.06, -0.1, 0.25, 1.0, 0.15, 0.035, 0.25, 1.0,
0.06, -0.1, 0.25, 1.0, 0.07, -0.15, 0.25, 1.0, 0.15, 0.035, 0.25, 1.0,
0.07, -0.15, 0.25, 1.0, 0.05, -0.2, 0.25, 1.0, 0.21, -0.24, 0.25, 1.0,
0.05, -0.2, 0.25, 1.0, 0.02, -0.21, 0.25, 1.0, 0.21, -0.24, 0.25, 1.0,
0.0, -0.21, 0.25, 1.0, -0.02, -0.21, 0.25, 1.0, 0.0, -0.15, 0.25, 1.0,
-0.02, -0.21, 0.25, 1.0, -0.05, -0.2, 0.25, 1.0, 0.0, -0.15, 0.25, 1.0,
-0.05, -0.2, 0.25, 1.0, -0.07, -0.15, 0.25, 1.0, 0.0, -0.15, 0.25, 1.0,
-0.07, -0.15, 0.25, 1.0, -0.06, -0.1, 0.25, 1.0, 0.0, -0.15, 0.25, 1.0,
-0.06, -0.1, 0.25, 1.0, -0.05, -0.05, 0.25, 1.0, 0.0, -0.15, 0.25, 1.0,
-0.05, -0.05, 0.25, 1.0, -0.035, -0.01, 0.25, 1.0, 0.0, -0.15, 0.25, 1.0,
-0.035, -0.01, 0.25, 1.0, 0.0, 0.0, 0.0, 1.25, 0.0, -0.15, 0.25, 1.0,
-0.035, -0.01, 0.25, 1.0, -0.05, -0.05, 0.25, 1.0, -0.15, 0.035, 0.25, 1.0,
-0.05, -0.05, 0.25, 1.0, -0.06, -0.1, 0.25, 1.0, -0.15, 0.035, 0.25, 1.0,
-0.06, -0.1, 0.25, 1.0, -0.07, -0.15, 0.25, 1.0, -0.15, 0.035, 0.25, 1.0,
-0.07, -0.15, 0.25, 1.0, -0.05, -0.2, 0.25, 1.0, -0.21, -0.24, 0.25, 1.0,
-0.05, -0.2, 0.25, 1.0, -0.02, -0.21, 0.25, 1.0, -0.21, -0.24, 0.25, 1.0,
// right eye
0.21, 0.0, 0.25, 1.0, 0.24, 0.01, 0.25, 1.0, 0.21, 0.09, 0.25, 1.0,
0.24, 0.01, 0.25, 1.0, 0.27, 0.035, 0.25, 1.0, 0.21, 0.09, 0.25, 1.0,
0.27, 0.035, 0.25, 1.0, 0.28, 0.07, 0.25, 1.0, 0.21, 0.09, 0.25, 1.0,
0.28, 0.07, 0.25, 1.0, 0.28, 0.11, 0.25, 1.0, 0.21, 0.09, 0.25, 1.0,
0.28, 0.11, 0.25, 1.0, 0.27, 0.145, 0.25, 1.0, 0.21, 0.09, 0.25, 1.0,
0.27, 0.145, 0.25, 1.0, 0.24, 0.175, 0.25, 1.0, 0.21, 0.09, 0.25, 1.0,
0.24, 0.175, 0.25, 1.0, 0.21, 0.18, 0.25, 1.0, 0.21, 0.09, 0.25, 1.0,
0.21, 0.18, 0.25, 1.0, 0.18, 0.175, 0.25, 1.0, 0.21, 0.09, 0.25, 1.0,
0.18, 0.175, 0.25, 1.0, 0.15, 0.145, 0.25, 1.0, 0.21, 0.09, 0.25, 1.0,
0.15, 0.145, 0.25, 1.0, 0.14, 0.11, 0.25, 1.0, 0.21, 0.09, 0.25, 1.0,
0.14, 0.11, 0.25, 1.0, 0.14, 0.07, 0.25, 1.0, 0.21, 0.09, 0.25, 1.0,
0.14, 0.07, 0.25, 1.0, 0.15, 0.035, 0.25, 1.0, 0.21, 0.09, 0.25, 1.0,
0.15, 0.035, 0.25, 1.0, 0.18, 0.01, 0.25, 1.0, 0.21, 0.09, 0.25, 1.0,
0.18, 0.01, 0.25, 1.0, 0.21, 0.0, 0.25, 1.0, 0.21, 0.09, 0.25, 1.0,
0.21, 0.0, 0.25, 1.0, 0.24, 0.01, 0.25, 1.0, 0.21, -0.24, 0.25, 1.0,
0.24, 0.01, 0.25, 1.0, 0.27, 0.035, 0.25, 1.0, 0.21, -0.24, 0.25, 1.0,
0.15, 0.035, 0.25, 1.0, 0.18, 0.01, 0.25, 1.0, 0.21, -0.24, 0.25, 1.0,
0.18, 0.01, 0.25, 1.0, 0.21, 0.0, 0.25, 1.0, 0.21, -0.24, 0.25, 1.0,
0.15, 0.145, 0.25, 1.0, 0.14, 0.11, 0.25, 1.0, 0.035, -0.01, 0.25, 1.0,
0.14, 0.11, 0.25, 1.0, 0.14, 0.07, 0.25, 1.0, 0.035, -0.01, 0.25, 1.0,
0.14, 0.07, 0.25, 1.0, 0.15, 0.035, 0.25, 1.0, 0.035, -0.01, 0.25, 1.0,
0.24, 0.175, 0.25, 1.0, 0.21, 0.18, 0.25, 1.0, 0.29, 0.28, 0.25, 1.0,
0.27, 0.145, 0.25, 1.0, 0.24, 0.175, 0.25, 1.0, 0.29, 0.28, 0.25, 1.0,
0.28, 0.11, 0.25, 1.0, 0.27, 0.145, 0.25, 1.0, 0.29, 0.28, 0.25, 1.0,
0.18, 0.175, 0.25, 1.0, 0.21, 0.18, 0.25, 1.0, 0.29, 0.28, 0.25, 1.0,
0.27, 0.035, 0.25, 1.0, 0.28, 0.07, 0.25, 1.0, 0.4, 0.0, 0.25, 1.0,
0.27, 0.035, 0.25, 1.0, 0.4, 0.0, 0.25, 1.0, 0.21, -0.24, 0.25, 1.0,
0.15, 0.035, 0.25, 1.0, 0.21, -0.24, 0.25, 1.0, 0.07, -0.15, 0.25, 1.0,
// left eye
-0.21, 0.0, 0.25, 1.0, -0.24, 0.01, 0.25, 1.0, -0.21, 0.09, 0.25, 1.0,
-0.24, 0.01, 0.25, 1.0, -0.27, 0.035, 0.25, 1.0, -0.21, 0.09, 0.25, 1.0,
-0.27, 0.035, 0.25, 1.0, -0.28, 0.07, 0.25, 1.0, -0.21, 0.09, 0.25, 1.0,
-0.28, 0.07, 0.25, 1.0, -0.28, 0.11, 0.25, 1.0, -0.21, 0.09, 0.25, 1.0,
-0.28, 0.11, 0.25, 1.0, -0.27, 0.145, 0.25, 1.0, -0.21, 0.09, 0.25, 1.0,
-0.27, 0.145, 0.25, 1.0, -0.24, 0.175, 0.25, 1.0, -0.21, 0.09, 0.25, 1.0,
-0.24, 0.175, 0.25, 1.0, -0.21, 0.18, 0.25, 1.0, -0.21, 0.09, 0.25, 1.0,
-0.21, 0.18, 0.25, 1.0, -0.18, 0.175, 0.25, 1.0, -0.21, 0.09, 0.25, 1.0,
-0.18, 0.175, 0.25, 1.0, -0.15, 0.145, 0.25, 1.0, -0.21, 0.09, 0.25, 1.0,
-0.15, 0.145, 0.25, 1.0, -0.14, 0.11, 0.25, 1.0, -0.21, 0.09, 0.25, 1.0,
-0.14, 0.11, 0.25, 1.0, -0.14, 0.07, 0.25, 1.0, -0.21, 0.09, 0.25, 1.0,
-0.14, 0.07, 0.25, 1.0, -0.15, 0.035, 0.25, 1.0, -0.21, 0.09, 0.25, 1.0,
-0.15, 0.035, 0.25, 1.0, -0.18, 0.01, 0.25, 1.0, -0.21, 0.09, 0.25, 1.0,
-0.18, 0.01, 0.25, 1.0, -0.21, 0.0, 0.25, 1.0, -0.21, 0.09, 0.25, 1.0,
-0.21, 0.0, 0.25, 1.0, -0.24, 0.01, 0.25, 1.0, -0.21, -0.24, 0.25, 1.0,
-0.24, 0.01, 0.25, 1.0, -0.27, 0.035, 0.25, 1.0, -0.21, -0.24, 0.25, 1.0,
-0.15, 0.035, 0.25, 1.0, -0.18, 0.01, 0.25, 1.0, -0.21, -0.24, 0.25, 1.0,
-0.18, 0.01, 0.25, 1.0, -0.21, 0.0, 0.25, 1.0, -0.21, -0.24, 0.25, 1.0,
-0.15, 0.145, 0.25, 1.0, -0.14, 0.11, 0.25, 1.0, -0.035, -0.01, 0.25, 1.0,
-0.14, 0.11, 0.25, 1.0, -0.14, 0.07, 0.25, 1.0, -0.035, -0.01, 0.25, 1.0,
-0.14, 0.07, 0.25, 1.0, -0.15, 0.035, 0.25, 1.0, -0.035, -0.01, 0.25, 1.0,
-0.24, 0.175, 0.25, 1.0, -0.21, 0.18, 0.25, 1.0, -0.29, 0.28, 0.25, 1.0,
-0.27, 0.145, 0.25, 1.0, -0.24, 0.175, 0.25, 1.0, -0.29, 0.28, 0.25, 1.0,
-0.28, 0.11, 0.25, 1.0, -0.27, 0.145, 0.25, 1.0, -0.29, 0.28, 0.25, 1.0,
-0.18, 0.175, 0.25, 1.0, -0.21, 0.18, 0.25, 1.0, -0.29, 0.28, 0.25, 1.0,
-0.27, 0.035, 0.25, 1.0, -0.28, 0.07, 0.25, 1.0, -0.4, 0.0, 0.25, 1.0,
-0.27, 0.035, 0.25, 1.0, -0.4, 0.0, 0.25, 1.0, -0.21, -0.24, 0.25, 1.0,
-0.15, 0.035, 0.25, 1.0, -0.21, -0.24, 0.25, 1.0, -0.07, -0.15, 0.25, 1.0,
// lower lip left
0.0, -0.44, 0.25, 1.0, -0.03, -0.43, 0.25, 1.0, 0.0, -0.3, 0.25, 1.0,
-0.03, -0.43, 0.25, 1.0, -0.05, -0.40, 0.25, 1.0, 0.0, -0.3, 0.25, 1.0,
-0.05, -0.40, 0.25, 1.0, -0.07, -0.37, 0.25, 1.0, 0.0, -0.3, 0.25, 1.0,
-0.07, -0.37, 0.25, 1.0, -0.09, -0.33, 0.25, 1.0, 0.0, -0.3, 0.25, 1.0,
0.0, -0.44, 0.25, 1.0, -0.03, -0.43, 0.25, 1.0, -0.15, -0.55, 0.25, 1.0,
-0.03, -0.43, 0.25, 1.0, -0.05, -0.40, 0.25, 1.0, -0.15, -0.55, 0.25, 1.0,
-0.05, -0.40, 0.25, 1.0, -0.07, -0.37, 0.25, 1.0, -0.15, -0.55, 0.25, 1.0,
-0.07, -0.37, 0.25, 1.0, -0.09, -0.33, 0.25, 1.0, -0.15, -0.55, 0.25, 1.0,
// lower lip right
0.0, -0.44, 0.25, 1.0, 0.03, -0.43, 0.25, 1.0, 0.0, -0.3, 0.25, 1.0,
0.03, -0.43, 0.25, 1.0, 0.05, -0.40, 0.25, 1.0, 0.0, -0.3, 0.25, 1.0,
0.05, -0.40, 0.25, 1.0, 0.07, -0.37, 0.25, 1.0, 0.0, -0.3, 0.25, 1.0,
0.07, -0.37, 0.25, 1.0, 0.09, -0.33, 0.25, 1.0, 0.0, -0.3, 0.25, 1.0,
0.0, -0.44, 0.25, 1.0, 0.03, -0.43, 0.25, 1.0, 0.15, -0.55, 0.25, 1.0,
0.03, -0.43, 0.25, 1.0, 0.05, -0.40, 0.25, 1.0, 0.15, -0.55, 0.25, 1.0,
0.05, -0.40, 0.25, 1.0, 0.07, -0.37, 0.25, 1.0, 0.15, -0.55, 0.25, 1.0,
0.07, -0.37, 0.25, 1.0, 0.09, -0.33, 0.25, 1.0, 0.15, -0.55, 0.25, 1.0,
// upper lip right
0.0, -0.3, 0.25, 1.0, 0.03, -0.32, 0.25, 1.0, 0.0, -0.21, 0.25, 1.0,
0.03, -0.32, 0.25, 1.0, 0.06, -0.33, 0.25, 1.0, 0.0, -0.21, 0.25, 1.0,
0.06, -0.33, 0.25, 1.0, 0.09, -0.33, 0.25, 1.0, 0.0, -0.21, 0.25, 1.0,
0.09, -0.33, 0.25, 1.0, 0.12, -0.32, 0.25, 1.0, 0.0, -0.21, 0.25, 1.0,
0.12, -0.32, 0.25, 1.0, 0.15, -0.3, 0.25, 1.0, 0.0, -0.21, 0.25, 1.0,
0.15, -0.3, 0.25, 1.0, 0.18, -0.27, 0.25, 1.0, 0.0, -0.21, 0.25, 1.0,
0.18, -0.27, 0.25, 1.0, 0.21, -0.24, 0.25, 1.0, 0.0, -0.21, 0.25, 1.0,
0.09, -0.33, 0.25, 1.0, 0.12, -0.32, 0.25, 1.0, 0.37, -0.42, 0.25, 1.0,
0.12, -0.32, 0.25, 1.0, 0.15, -0.3, 0.25, 1.0, 0.37, -0.42, 0.25, 1.0,
0.15, -0.3, 0.25, 1.0, 0.18, -0.27, 0.25, 1.0, 0.37, -0.42, 0.25, 1.0,
0.18, -0.27, 0.25, 1.0, 0.21, -0.24, 0.25, 1.0, 0.37, -0.42, 0.25, 1.0,
// upper lip left
0.0, -0.3, 0.25, 1.0, -0.03, -0.32, 0.25, 1.0, 0.0, -0.21, 0.25, 1.0,
-0.03, -0.32, 0.25, 1.0, -0.06, -0.33, 0.25, 1.0, 0.0, -0.21, 0.25, 1.0,
-0.06, -0.33, 0.25, 1.0, -0.09, -0.33, 0.25, 1.0, 0.0, -0.21, 0.25, 1.0,
-0.09, -0.33, 0.25, 1.0, -0.12, -0.32, 0.25, 1.0, 0.0, -0.21, 0.25, 1.0,
-0.12, -0.32, 0.25, 1.0, -0.15, -0.3, 0.25, 1.0, 0.0, -0.21, 0.25, 1.0,
-0.15, -0.3, 0.25, 1.0, -0.18, -0.27, 0.25, 1.0, 0.0, -0.21, 0.25, 1.0,
-0.18, -0.27, 0.25, 1.0, -0.21, -0.24, 0.25, 1.0, 0.0, -0.21, 0.25, 1.0,
-0.09, -0.33, 0.25, 1.0, -0.12, -0.32, 0.25, 1.0, -0.37, -0.42, 0.25, 1.0,
-0.12, -0.32, 0.25, 1.0, -0.15, -0.3, 0.25, 1.0, -0.37, -0.42, 0.25, 1.0,
-0.15, -0.3, 0.25, 1.0, -0.18, -0.27, 0.25, 1.0, -0.37, -0.42, 0.25, 1.0,
-0.18, -0.27, 0.25, 1.0, -0.21, -0.24, 0.25, 1.0, -0.37, -0.42, 0.25, 1.0,
];
const color2 = [0, 0, 1, 1];
//Initializing the variables and tranformation matrix
var tx=0, ty=0;
let transformationMatrix_translation = [
1,0,0,0,
0,1,0,0,
0,0,1,0,
0,0,0,1
];
let transformationMatrix_scaling = [
1,0,0,0,
0,1,0,0,
0,0,1,0,
0,0,0,1
];
let transformationMatrix_rotation = [
1,0,0,0,
0,1,0,0,
0,0,1,0,
0,0,0,1
];
// load vertex data to gpu
const square1Buffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, square1Buffer);
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(square1_vertices), gl.STATIC_DRAW);
gl.bindBuffer(gl.ARRAY_BUFFER, null);
const square2Buffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, square2Buffer);
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(square2_vertices), gl.STATIC_DRAW);
gl.bindBuffer(gl.ARRAY_BUFFER, null);
// setup model matrix;
modelTranslate = [
Number((document.getElementById("modelTx")).value),
Number((document.getElementById("modelTy")).value),
Number((document.getElementById("modelTz")).value),
0
]
const modelMatrix = glMatrix.mat4.create();
glMatrix.mat4.translate(modelMatrix, modelMatrix, modelTranslate);
glMatrix.mat4.rotateX(modelMatrix, modelMatrix, glMatrix.glMatrix.toRadian(0));
glMatrix.mat4.rotateY(modelMatrix, modelMatrix, glMatrix.glMatrix.toRadian(0));
glMatrix.mat4.rotateZ(modelMatrix, modelMatrix, glMatrix.glMatrix.toRadian(0));
viewPoint = [
Number((document.getElementById("viewpx")).value),
Number((document.getElementById("viewpy")).value),
Number((document.getElementById("viewpz")).value),
1
]
centerPoint = [
Number((document.getElementById("centerpx")).value),
Number((document.getElementById("centerpy")).value),
Number((document.getElementById("centerpz")).value),
1
]
upVector = [
Number((document.getElementById("upvx")).value),
Number((document.getElementById("upvy")).value),
Number((document.getElementById("upvz")).value),
0
]
// setup view matrix
const viewMatrix = glMatrix.mat4.create();
glMatrix.mat4.lookAt(
viewMatrix,
viewPoint,
centerPoint,
upVector
);
// glMatrix.mat4.lookAt(viewMatrix,[0.3,0.3,-0.5,1],[0,0,0,1],[1,0,0,0]);
// setup projection matrix
const projectionMatrix = glMatrix.mat4.create();
// parameters to set parallel projection
var left = -1;
var right = 1;
var bottom = -1;
var top = 1;
var near = 0;
var far = 1;
glMatrix.mat4.ortho(projectionMatrix, left, right, bottom, top, near, far);
// function to draw the scene from the user inputs
function drawScene() {
// enable attrib array
gl.enableVertexAttribArray(aPositionPointer);
// load uniforms (only done once; since values are same for all vertices)
gl.uniformMatrix4fv(uModelMatrixPointer, false, new Float32Array(modelMatrix));
gl.uniformMatrix4fv(uViewMatrixPointer, false, new Float32Array(viewMatrix));
gl.uniformMatrix4fv(uProjectionMatrixPointer, false, new Float32Array(projectionMatrix));
// set values
gl.uniformMatrix4fv(uTransformationMatrixPointer_Translation, false, new Float32Array(transformationMatrix_translation));
gl.uniformMatrix4fv(uTransformationMatrixPointer_Scaling, false, new Float32Array(transformationMatrix_scaling));
gl.uniformMatrix4fv(uTransformationMatrixPointer_Rotation, false, new Float32Array(transformationMatrix_rotation));
// clear the screen
gl.clearColor(0,0,0, 1.0);
gl.clear(gl.COLOR_BUFFER_BIT);
// load shader variables
gl.uniform4fv(colorLocation,color1);
//binding gl.ARRAY_BUFFER to the vertices of the object to be drawn
gl.bindBuffer(gl.ARRAY_BUFFER, square1Buffer);
gl.vertexAttribPointer(aPositionPointer, 4, gl.FLOAT, false, 0, 0);
// Draw triangles
for(let i=0; i<square1_vertices.length/4; i+=3){
console.log("here")
// alternating color of triangle
i%6==0?gl.uniform4f(colorLocation,0.0,0.0,1.0,1.0):gl.uniform4f(colorLocation,0.0,0.5,1.0,1.0);
gl.drawArrays(gl.TRIANGLES, i, 3);
}
//same for the other object to be drawn
gl.uniform4fv(colorLocation, color2);
gl.bindBuffer(gl.ARRAY_BUFFER, square2Buffer);
gl.vertexAttribPointer(aPositionPointer, 4, gl.FLOAT, false, 0, 0);
for(let i=0; i<square2_vertices.length/4; i+=3){
console.log("here")
// alternating color of triangle
i%6==0?gl.uniform4f(colorLocation,1.0,0.0,0.0,1.0):gl.uniform4f(colorLocation,1.0,0.5,0.0,1.0);
gl.drawArrays(gl.TRIANGLES, i, 3);
}
}
// initial render
drawScene();
//Declaration and initialization of translation,scaling,rotation factors
let tr_x=0, tr_y=0, Sx=1, Sy=1;
let degrees = 0;
function redraw(code){
return function(){
if (code=="tx") tr_x = tr_x + Number((document.getElementById("tx")).value);
if (code=="ty") tr_y = tr_y + Number((document.getElementById("ty")).value);
if (code=="both"){
tr_x = tr_x + Number((document.getElementById("tx")).value);
tr_y = tr_y + Number((document.getElementById("ty")).value);
}
if(code=="rotate") degrees = degrees + Number((document.getElementById("deg")).value);
if (code=="scaled"){
Sx = Sx + Number((document.getElementById("Sx")).value);
Sy = Sy + Number((document.getElementById("Sy")).value);
}
transformationMatrix_translation = [
1,0,0,0,
0,1,0,0,
0,0,1,0,
tr_x,tr_y,0,1
];
//Transformation matrix when scaling
transformationMatrix_scaling = [
Sx,0,0,0,
0,Sy,0,0,
0,0,1,0,
0,0,0,1
];
let radians = Math.PI*degrees/180;
let cosValue = Math.cos(radians);
let sinValue = Math.sin(radians);
transformationMatrix_rotation = [
cosValue,sinValue , 0, 0,
-1*sinValue, cosValue, 0, 0,
0, 0, 1, 0,
0, 0, 0, 1
]
if(code=="viewpx") viewPoint[0] = Number((document.getElementById("viewpx")).value)
if(code=="viewpy") viewPoint[1] = Number((document.getElementById("viewpy")).value)
if(code=="viewpz") viewPoint[2] = Number((document.getElementById("viewpz")).value)
if(code=="centerpx") centerPoint[0] = Number((document.getElementById("centerpx")).value)
if(code=="centerpy") centerPoint[1] = Number((document.getElementById("centerpy")).value)
if(code=="centerpz") centerPoint[2] = Number((document.getElementById("centerpz")).value)
if(code=="upvx") upVector[0] = Number((document.getElementById("upvx")).value)
if(code=="upvy") upVector[1] = Number((document.getElementById("upvy")).value)
if(code=="upvz") upVector[2] = Number((document.getElementById("upvz")).value)
if(code=="modelTx") modelTranslate[0] = Number((document.getElementById("modelTx")).value)
if(code=="modelTy") modelTranslate[1] = Number((document.getElementById("modelTy")).value)
if(code=="modelTz") modelTranslate[2] = Number((document.getElementById("modelTz")).value)
if(code=="rotatex") glMatrix.mat4.rotateX(modelMatrix, modelMatrix, glMatrix.glMatrix.toRadian(Number((document.getElementById("rotatex")).value)))
if(code=="rotatey") glMatrix.mat4.rotateY(modelMatrix, modelMatrix, glMatrix.glMatrix.toRadian(Number((document.getElementById("rotatey")).value)))
if(code=="rotatez") glMatrix.mat4.rotateZ(modelMatrix, modelMatrix, glMatrix.glMatrix.toRadian(Number((document.getElementById("rotatez")).value)))
glMatrix.mat4.translate(modelMatrix, modelMatrix, modelTranslate);
glMatrix.mat4.lookAt(
viewMatrix,
viewPoint,
centerPoint,
upVector
);
//rendering again after reflecting the transformations
drawScene();
}
}
//Event listeners for user inputs for the transformations
document.getElementById("translateX").addEventListener("click", redraw("tx"));
document.getElementById("translateY").addEventListener("click", redraw("ty"));
document.getElementById("translate").addEventListener("click", redraw("both"));
document.getElementById("scale").addEventListener("click",redraw("scaled"));
document.getElementById("rotate").addEventListener("click",redraw("rotate"));
document.getElementById("viewpx").addEventListener("input",redraw("viewpx"));
document.getElementById("viewpy").addEventListener("input",redraw("viewpy"));
document.getElementById("viewpz").addEventListener("input",redraw("viewpz"));
document.getElementById("centerpx").addEventListener("input",redraw("centerpx"));
document.getElementById("centerpy").addEventListener("input",redraw("centerpy"));
document.getElementById("centerpz").addEventListener("input",redraw("centerpz"));
document.getElementById("upvx").addEventListener("input",redraw("upvx"));
document.getElementById("upvy").addEventListener("input",redraw("upvy"));
document.getElementById("upvz").addEventListener("input",redraw("upvz"));
document.getElementById("modelTx").addEventListener("input",redraw("modelTx"));
document.getElementById("modelTy").addEventListener("input",redraw("modelTy"));
document.getElementById("modelTz").addEventListener("input",redraw("modelTz"));
document.getElementById("rotatex").addEventListener("input",redraw("rotatex"));
document.getElementById("rotatey").addEventListener("input",redraw("rotatey"));
document.getElementById("rotatez").addEventListener("input",redraw("rotatez"));
}
// call the main program
main();
</script>
</body>
</html>