Interactive_Computer_Graphi.../Übung_30112023/Insel/index.html

70 lines
1.6 KiB
HTML

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>WebGL Example</title>
<script id="vertex-shader" type="x-shader/x-vertex">#version 300 es
in vec4 vPosition;
in vec4 vColor;
out vec4 vfColor;
const vec4 colorRed = vec4(1, 0, 0, 1);
uniform mat4 moveDown;
uniform mat4 viewMatrix;
void main()
{
/*
const mat4 viewMatrix = mat4(
0.1767766922712326, -0.0589255653321743, -0.013334667310118675, 0,
0, 0.2357022613286972, -0.006667333655059338, 0,
-0.1767766922712326, -0.0589255653321743, -0.013334667310118675, 0,
0, 0, -0.8801880478858948, 1);
*/
vfColor = vColor;
//vfColor = colorRed;
//gl_Position = vPosition;
gl_Position = viewMatrix * vPosition;
//gl_Position = moveDown * gl_Position;
if(gl_Position.y < 0.0)
{
vfColor = colorRed;
}
//gl_Position.y = gl_Position.y * 0.1;
//gl_Position.x = gl_Position.x * 0.5;
}
</script>
<script id="fragment-shader" type="x-shader/x-fragment">#version 300 es
precision mediump float;
in vec4 vfColor;
out vec4 fColor;
void main()
{
fColor = vfColor;
}
</script>
<script type="text/javascript" src="common/initShaders.js"></script>
<script type="text/javascript" src="common/objects3D.js"></script>
<script type="text/javascript" src="common/glMatrix.js"></script>
</head>
<body>
<h1>Lorem Ipsum</h1>
<canvas id="gl-canvas" width="512" height="512">
If you see this, your browser doesn't support WebGL.
</canvas>
<script src="main.js" type="text/javascript"></script>
</body>
</html>