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index.html
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index.html
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<!DOCTYPE html>
<html>
<meta http-equiv="content-type" content="text/html; charset=windows-1252">
<button id="ButtonX">Rotate X</button>
<button id="ButtonY">Rotate Y</button>
<button id="ButtonZ">Rotate Z</button>
<button id="ButtonT">Toggle Rotation</button>
<button id="LightX+">LightX+</button>
<button id="LightX-">LightX-</button>
<button id="LightY+">LightY+</button>
<button id="LightY-">LightY-</button>
<button id="LightZ+">LightZ+</button>
<button id="LightZ-">LightZ-</button>
<script id="vertex-shader" type="x-shader/x-vertex">#version 300 es
in vec4 vPosition;
in vec3 vNormal;
out vec4 fColor;
in vec2 texturePosition;
out vec2 outTexturePosition;
uniform vec4 ambientProduct, diffuseProduct, specularProduct;
uniform mat4 modelViewMatrix;
uniform mat4 projectionMatrix;
uniform vec4 lightPosition;
uniform float shininess;
void main()
{
vec3 pos = -(modelViewMatrix * vPosition).xyz;
//fixed light postion
vec3 light = lightPosition.xyz;
vec3 L = normalize( light - pos );
vec3 E = normalize( -pos );
vec3 H = normalize( L + E );
vec4 NN = vec4(vNormal,0);
// Transform vertex normal into eye coordinates
vec3 N = normalize( (modelViewMatrix*NN).xyz);
// Compute terms in the illumination equation
vec4 ambient = ambientProduct;
float Kd = max( dot(L, N), 0.0 );
vec4 diffuse = Kd*diffuseProduct;
float Ks = pow( max(dot(N, H), 0.0), shininess );
vec4 specular = Ks * specularProduct;
if( dot(L, N) < 0.0 ) {
specular = vec4(0.0, 0.0, 0.0, 1.0);
}
gl_Position = projectionMatrix * modelViewMatrix * vPosition;
fColor = ambient + diffuse +specular;
fColor.a = 1.0;
outTexturePosition = texturePosition;
}
</script>
<script id="fragment-shader" type="x-shader/x-fragment">#version 300 es
precision mediump float;
in vec4 fColor;
out vec4 oColor;
in vec2 outTexturePosition;
uniform sampler2D textureSampler;
void main()
{
oColor = fColor * texture(textureSampler, outTexturePosition);
}
</script>
<script type="text/javascript" src="shadedCube_js/webgl-utils.js"></script>
<script type="text/javascript" src="shadedCube_js/initShaders.js"></script>
<script type="text/javascript" src="shadedCube_js/MV.js"></script>
<script type="text/javascript" src="shadedCube_js/shadedCube.js"></script>
<head>
<body>
<canvas id="gl-canvas" width="512" height="512">
Oops ... your browser doesn't support the HTML5 canvas element
</canvas>
</body></html>