Prepared Abgabe 4 and Übung
This commit is contained in:
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5555
Abgabe_4/lightTODOs/common/gl-matrix.js
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Abgabe_4/lightTODOs/common/gl-matrix.js
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Load Diff
46
Abgabe_4/lightTODOs/common/initShaders.js
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Abgabe_4/lightTODOs/common/initShaders.js
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//
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// initShaders.js
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//
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function initShaders( gl, vertexShaderId, fragmentShaderId )
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{
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const compileShader = ( gl, gl_shaderType, shaderSource ) => {
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// Create the shader
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shader = gl.createShader( gl_shaderType );
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// Set the shader source code
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gl.shaderSource( shader, shaderSource );
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// Compile the shader to make it readable for the GPU
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gl.compileShader( shader );
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var success = gl.getShaderParameter(shader, gl.COMPILE_STATUS);
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if (!success) {
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// Something went wrong during compilation; get the error
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throw "could not compile shader:" + gl.getShaderInfoLog(shader);
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}
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else {
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return shader;
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}
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}
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/*
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* Setup shader program
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*/
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vShaderSource = document.querySelector( '#' + vertexShaderId ).text;
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fShaderSource = document.querySelector( '#' + fragmentShaderId ).text;
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vertexShader = compileShader( gl, gl.VERTEX_SHADER, vShaderSource );
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fragmentShader = compileShader( gl, gl.FRAGMENT_SHADER, fShaderSource );
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// Build the program
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const program = gl.createProgram();
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// Attach shaders to it
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gl.attachShader( program, vertexShader );
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gl.attachShader( program, fragmentShader );
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gl.linkProgram( program );
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return program;
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}
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1847
Abgabe_4/lightTODOs/common/objects3D.js
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1847
Abgabe_4/lightTODOs/common/objects3D.js
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77
Abgabe_4/lightTODOs/index.html
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Abgabe_4/lightTODOs/index.html
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8"/>
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<title>WebGL Example</title>
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<script id="vertex-shader" type="x-shader/x-vertex">#version 300 es
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in vec4 vPosition;
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// TODO: Nimm Normalen als Attribut entgegen
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uniform mat4 modelMatrix;
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uniform mat4 viewMatrix;
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// TODO: Nimm die Position der Lichtquelle als Uniform-Variable entgegen
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// TODO: Nimm alle Koeffizienten und Intensitäten, sowie den Exponenten als Uniform-Variablen entgegen
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// TODO: Definiere alle Konstanten c_1, c_2, c_3
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out vec3 vfColor;
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void main()
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{
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const mat4 projectionMatrix = mat4(
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1.2071068286895752, 0, 0, 0,
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0, 2.4142136573791504, 0, 0,
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0, 0, -1.0100502967834473, -1,
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0, 0, -1.0050251483917236, 0);
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mat4 modelViewMatrix = viewMatrix * modelMatrix;
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// TODO: Berechne die Normalenmatrix
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// TODO: Rechne alle übergebenen Koordinaten (Lichtposition, Normalen) in das Kamerakoordinatensystem um
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vec4 position = modelViewMatrix * vPosition;
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// TODO: Berechne und normalisiere die Vektoren L, N, R und V
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// Tipp aus den References: For a given incident vector I and surface normal N reflect returns the reflection direction calculated as I - 2.0 * dot(N, I) * N.
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// I ist in diesem Fall der normalisierte Einheitsvektor -L (Siehe Diskussion 7)
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// TODO: Berechne die Distanz d, sowie f_{att}
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// TODO: Berechne die Farbe vfColor anhand der Phong-Beleuchtungsgleichung
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//vfColor = TODO;
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gl_Position = projectionMatrix * position;
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}
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</script>
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<script id="fragment-shader" type="x-shader/x-fragment">#version 300 es
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precision mediump float;
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in vec3 vfColor;
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out vec4 fColor;
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void main()
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{
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// DONE: Umrechnung von vec3 in vec4
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fColor = vec4(vfColor, 1.0);
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}
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</script>
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<script type="text/javascript" src="common/initShaders.js"></script>
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<script type="text/javascript" src="common/gl-matrix.js"></script>
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<script type="text/javascript" src="common/objects3D.js"></script>
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</head>
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<body>
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<h1>Lorem Ipsum</h1>
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<canvas id="gl-canvas" width="1024" height="512">
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If you see this, your browser doesn't support WebGL.
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</canvas>
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<script src="main.js" type="text/javascript"></script>
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</body>
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</html>
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205
Abgabe_4/lightTODOs/main.js
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Abgabe_4/lightTODOs/main.js
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let gl;
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let program;
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let objects = [];
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let posLoc;
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// DONE: Deklariere benötigte Locations von Shadervariablen als globale Variablen
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let normalLoc,
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lightPositionLoc,
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IaLoc,
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IdLoc,
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IsLoc,
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kaLoc,
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kdLoc,
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ksLoc,
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specularExponentLoc;
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let modelMatrixLoc;
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let viewMatrixLoc,
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viewMatrix;
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let eye,
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target,
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up;
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let keyPressed = {
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KeyW: false,
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KeyA: false,
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KeyS: false,
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KeyD: false
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};
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const speed = 0.005;
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function main() {
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// Get canvas and setup WebGL context
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const canvas = document.getElementById("gl-canvas");
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gl = canvas.getContext('webgl2');
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// Configure viewport
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gl.viewport(0,0,canvas.width,canvas.height);
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gl.clearColor(0.75,0.8,1.0,1.0);
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gl.enable(gl.DEPTH_TEST);
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// Init shader program via additional function and bind it
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program = initShaders(gl, "vertex-shader", "fragment-shader");
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gl.useProgram(program);
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// Get locations of shader variables
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posLoc = gl.getAttribLocation(program, "vPosition");
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modelMatrixLoc = gl.getUniformLocation(program, "modelMatrix");
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viewMatrixLoc = gl.getUniformLocation(program, "viewMatrix");
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// DONE: Fülle globale Variablen mit Speicherlocations für Materialkoeffizienten und Lichtintensitäten
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normalLoc = gl.getAttribLocation(program, "vNormal");
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lightPositionLoc = gl.getUniformLocation(program, "lightPosition");
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IaLoc = gl.getUniformLocation(program, "Ia");
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IdLoc = gl.getUniformLocation(program, "Id");
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IsLoc = gl.getUniformLocation(program, "Is");
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kaLoc = gl.getUniformLocation(program, "ka");
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kdLoc = gl.getUniformLocation(program, "kd");
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ksLoc = gl.getUniformLocation(program, "ks");
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specularExponentLoc = gl.getUniformLocation(program, "specExp");
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eye = vec3.fromValues(0.0, 0.3, 4.0);
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target = vec3.fromValues(0.0, 0.3, 0.0);
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up = vec3.fromValues(0.0, 1.0, 0.0);
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viewMatrix = mat4.create();
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mat4.lookAt(viewMatrix, eye, target, up);
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gl.uniformMatrix4fv(viewMatrixLoc, false, viewMatrix);
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// DONE: Setze Position und Intensitäten der Lichtquelle als Uniform-Variablen
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gl.uniform3fv(lightPositionLoc, [1.0, 2.0, 1.0]);
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gl.uniform3fv(IaLoc, [0.3, 0.3, 0.3]);
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gl.uniform3fv(IdLoc, [0.8, 0.8, 0.8]);
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gl.uniform3fv(IsLoc, [0.7, 0.7, 0.7]);
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document.addEventListener("keydown", keydown);
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document.addEventListener("keyup", keyup);
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document.addEventListener("mousemove", changeView);
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canvas.onmousedown = function() {
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canvas.requestPointerLock();
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}
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// Create object instances
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let island = new Island();
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objects.push(island);
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let tree1 = new Tree();
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tree1.SetModelMatrix([1.3, 0, 0.6], [0, 45, 0], [0.3, 0.3, 0.3]);
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objects.push(tree1);
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let tree2 = new Tree();
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tree2.SetModelMatrix([0.9, 0, 0.3], [0, 33, 0], [0.45, 0.45, 0.45]);
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objects.push(tree2);
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let tree3 = new Tree();
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tree3.SetModelMatrix([0.45, 0, 0.75], [0, 0, 0], [0.4, 0.4, 0.4]);
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objects.push(tree3);
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let tree4 = new Tree();
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tree4.SetModelMatrix([-1.1, 0, 0.5], [0, 222, 0], [0.42, 0.42, 0.42]);
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objects.push(tree4);
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let tree5 = new Tree();
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tree5.SetModelMatrix([-0.65, 0, 0.7], [0, 79, 0], [0.32, 0.32, 0.32]);
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objects.push(tree5);
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let cloud1 = new Cloud();
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cloud1.SetModelMatrix([-0.4, 1, -0.9], [0, 0, 0], [0.32, 0.32, 0.32]);
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objects.push(cloud1);
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let cloud2 = new Cloud();
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cloud2.SetModelMatrix([0, 1.4, -1.6], [0, -90, 0], [0.2, 0.2, 0.2]);
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objects.push(cloud2);
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let cloud3 = new Cloud();
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cloud3.SetModelMatrix([0.7, 0.9, -0.8], [0, 100, 0], [0.25, 0.25, 0.25]);
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objects.push(cloud3);
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let river = new River();
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river.SetModelMatrix([0, 0.04, 1.8], [0, 185, 0], [0.11, 0.11, 0.11]);
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objects.push(river);
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gameLoop();
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};
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function update()
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{
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let look = vec3.create();
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vec3.sub(look, target, eye);
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vec3.scale(look, look, speed);
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if(keyPressed.KeyW) {
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eye[0] += look[0];
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eye[2] += look[2];
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target[0] += look[0];
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target[2] += look[2];
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}
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if(keyPressed.KeyS) {
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eye[0] -= look[0];
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eye[2] -= look[2];
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target[0] -= look[0];
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target[2] -= look[2];
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}
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if(keyPressed.KeyA) {
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eye[0] += look[2];
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eye[2] -= look[0];
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target[0] += look[2];
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target[2] -= look[0];
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}
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if(keyPressed.KeyD) {
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eye[0] -= look[2];
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eye[2] += look[0];
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target[0] -= look[2];
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target[2] += look[0];
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}
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mat4.lookAt(viewMatrix, eye, target, up);
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gl.uniformMatrix4fv(viewMatrixLoc, false, viewMatrix);
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}
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function render() {
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// Only clear once
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gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
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// Call render function of each scene object
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for(let object of objects) {
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object.Render();
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};
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}
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function gameLoop()
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{
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update();
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render();
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requestAnimationFrame(gameLoop);
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}
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function keydown(e)
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{
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keyPressed[e.code] = true;
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}
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function keyup(e)
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{
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keyPressed[e.code] = false;
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}
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function changeView(e)
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{
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vec3.rotateY(target, target, eye, -e.movementX * speed);
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mat4.lookAt(viewMatrix, eye, target, up);
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gl.uniformMatrix4fv(viewMatrixLoc, false, viewMatrix);
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}
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main();
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@ -6,8 +6,10 @@
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<body>
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<a href="/Übung_23112023/">Übung_23112023/</a><br>
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<a href="/Übung_30112023/">Übung_30112023/</a><br>
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<a href="/Abgabe_3/">Abgabe_3/</a><br>
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<a href="/Abgabe_4/">Abgabe_4/</a><br>
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</body>
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</html>
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7861
Übung_30112023/Insel/common/glMatrix.js
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7861
Übung_30112023/Insel/common/glMatrix.js
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Load Diff
46
Übung_30112023/Insel/common/initShaders.js
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Übung_30112023/Insel/common/initShaders.js
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//
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// initShaders.js
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//
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function initShaders( gl, vertexShaderId, fragmentShaderId )
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{
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const compileShader = ( gl, gl_shaderType, shaderSource ) => {
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// Create the shader
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shader = gl.createShader( gl_shaderType );
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// Set the shader source code
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gl.shaderSource( shader, shaderSource );
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// Compile the shader to make it readable for the GPU
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gl.compileShader( shader );
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var success = gl.getShaderParameter(shader, gl.COMPILE_STATUS);
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if (!success) {
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// Something went wrong during compilation; get the error
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throw "could not compile shader:" + gl.getShaderInfoLog(shader);
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}
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else {
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return shader;
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}
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}
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/*
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* Setup shader program
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*/
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vShaderSource = document.querySelector( '#' + vertexShaderId ).text;
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fShaderSource = document.querySelector( '#' + fragmentShaderId ).text;
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vertexShader = compileShader( gl, gl.VERTEX_SHADER, vShaderSource );
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fragmentShader = compileShader( gl, gl.FRAGMENT_SHADER, fShaderSource );
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// Build the program
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const program = gl.createProgram();
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// Attach shaders to it
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gl.attachShader( program, vertexShader );
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gl.attachShader( program, fragmentShader );
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gl.linkProgram( program );
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return program;
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}
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437
Übung_30112023/Insel/common/objects3D.js
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Übung_30112023/Insel/common/objects3D.js
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class Object3D
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{
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constructor()
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{
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this.posVBO = gl.createBuffer();
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this.colorVBO = gl.createBuffer();
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this.indexVBO = gl.createBuffer();
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}
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initBuffers()
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{
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// Create VBO for positions and activate it
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gl.bindBuffer(gl.ARRAY_BUFFER, this.posVBO);
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// Fill VBO with positions
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gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(this.positions), gl.STATIC_DRAW);
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// Create VBO for colors and activate it
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gl.bindBuffer(gl.ARRAY_BUFFER, this.colorVBO);
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// Fill VBO with colors
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gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(this.colors), gl.STATIC_DRAW);
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// Create VBO for indices and activate it
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gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, this.indexVBO);
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// Fill VBO with indices
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gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(this.indices), gl.STATIC_DRAW);
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}
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render()
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{
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// Link data in VBO to shader variables
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gl.bindBuffer(gl.ARRAY_BUFFER, this.posVBO);
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gl.enableVertexAttribArray(posLoc);
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gl.vertexAttribPointer(posLoc, 3, gl.FLOAT, false, 0, 0);
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// Link data in VBO to shader variables
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gl.bindBuffer(gl.ARRAY_BUFFER, this.colorVBO);
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gl.enableVertexAttribArray(colorLoc);
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gl.vertexAttribPointer(colorLoc, 4, gl.FLOAT, false, 0, 0);
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// Render
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gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, this.indexVBO);
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gl.drawElements(gl.TRIANGLES, this.indices.length, gl.UNSIGNED_SHORT, 0);
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}
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}
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class Cube extends Object3D
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{
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constructor()
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{
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super();
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this.positions =
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[
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-1 , -1 , -1 , // index 0
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-1 , -1 , 1 , // index 1
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-1 , 1 , -1 , // index 2
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-1 , 1 , 1 , // index 3
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1 , -1 , -1 , // index 4
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1 , -1 , 1 , // index 5
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1 , 1 , -1 , // index 6
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1 , 1 , 1 // index 7
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];
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this.indices =
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[
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1 , 7 , 3 , 1 , 5 , 7 , // Front
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5 , 6 , 7 , 5 , 4 , 6 , // Right
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4 , 2 , 0 , 4 , 6 , 2 , // Back
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0 , 3 , 2 , 0 , 1 , 3 , // Left
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0 , 5 , 1 , 0 , 4 , 5 , // Bottom
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3 , 6 , 2 , 3 , 7 , 6 // Top
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];
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this.colors =
|
||||
[
|
||||
0 , 0 , 0 , 1 , // index 0
|
||||
1 , 0 , 0 , 1 , // index 1
|
||||
0 , 1 , 0 , 1 , // index 2
|
||||
0 , 0 , 1 , 1 , // index 3
|
||||
1 , 1 , 0 , 1 , // index 4
|
||||
1 , 0 , 1 , 1 , // index 5
|
||||
0 , 1 , 1 , 1 , // index 6
|
||||
1 , 1 , 1 , 1 // index 7
|
||||
];
|
||||
|
||||
this.initBuffers();
|
||||
}
|
||||
}
|
||||
|
||||
class Insel extends Object3D
|
||||
{
|
||||
constructor()
|
||||
{
|
||||
super();
|
||||
|
||||
this.positions =
|
||||
[
|
||||
-0.344503,-0.106899,-2.313329,
|
||||
0.254658,0.065420,-2.430170,
|
||||
0.506020,-0.293147,-2.207084,
|
||||
1.415955,0.064912,-1.957500,
|
||||
1.489208,-0.318759,-1.320762,
|
||||
1.685851,0.084184,-1.268915,
|
||||
2.014675,-0.126122,-0.782958,
|
||||
0.957233,-1.089151,-0.905606,
|
||||
0.454708,-1.256676,-0.897711,
|
||||
0.810208,-0.709404,-1.141590,
|
||||
0.739686,-1.249709,-0.541415,
|
||||
0.231851,-1.904112,-0.621845,
|
||||
0.052641,-1.633897,-0.758536,
|
||||
-0.020753,-0.743329,-1.377161,
|
||||
1.364762,-0.324582,0.647285,
|
||||
2.074500,0.090083,0.068582,
|
||||
1.608835,0.037777,0.559365,
|
||||
1.955554,-0.191974,0.132568,
|
||||
1.393132,0.037777,1.383312,
|
||||
1.210661,-0.322174,1.134609,
|
||||
0.514977,-0.286422,1.576757,
|
||||
0.507135,-1.581211,0.348922,
|
||||
0.342563,-2.052501,-0.027325,
|
||||
0.620568,-1.491335,-0.146730,
|
||||
0.745909,-0.723539,0.485115,
|
||||
0.089439,-1.345612,0.360167,
|
||||
1.089500,-0.770651,-0.314462,
|
||||
-0.123718,-0.298339,1.611730,
|
||||
-0.930959,0.037777,1.550149,
|
||||
-0.866234,-0.291222,1.300128,
|
||||
-0.414258,0.037777,1.808618,
|
||||
-1.444312,-0.282136,0.794076,
|
||||
-1.591571,0.097928,0.827036,
|
||||
-1.839477,-0.177971,0.145553,
|
||||
-0.936850,-0.751093,-0.176985,
|
||||
-0.611777,-1.317411,-0.262516,
|
||||
-0.326162,-1.310280,0.225784,
|
||||
0.289486,-0.743127,0.679448,
|
||||
0.020776,-1.770522,0.330532,
|
||||
-1.675519,-0.336500,-0.606829,
|
||||
-1.607249,0.010755,-1.680275,
|
||||
-0.625318,-0.725192,-1.039731,
|
||||
-2.011082,0.043485,-0.744422,
|
||||
-1.247727,0.059337,-1.332687,
|
||||
-0.934732,-0.314137,-1.943344,
|
||||
-0.184171,-0.491687,-2.096484,
|
||||
-0.707720,0.065178,-2.205832,
|
||||
-0.350659,-1.373304,-0.758204,
|
||||
-0.299529,-2.155551,-0.308846,
|
||||
-0.086080,-2.478361,-0.004677,
|
||||
0.091215,-2.267556,0.130842,
|
||||
-0.260030,-2.240649,0.060849,
|
||||
-0.470828,-1.954876,0.024811,
|
||||
-0.278168,0.037777,-0.209083,
|
||||
-0.914878,0.210568,-1.267986,
|
||||
-0.862298,0.231412,-0.781910,
|
||||
-0.302799,0.520691,-1.301783,
|
||||
-1.068480,0.101026,-0.360536,
|
||||
-1.736910,0.103204,0.106553,
|
||||
0.236277,0.037777,0.701510,
|
||||
0.656348,0.037777,-0.098120,
|
||||
0.501631,0.037777,1.688231,
|
||||
1.034499,0.275328,-1.269756,
|
||||
0.471459,0.267036,-1.698558,
|
||||
0.637660,0.376390,-1.207861,
|
||||
0.812177,0.491673,-0.567514,
|
||||
1.244986,0.398908,-0.324291,
|
||||
1.002755,0.639249,-0.717163,
|
||||
1.381545,0.288786,-0.765328,
|
||||
1.348978,0.284964,-1.076072,
|
||||
-0.505260,0.213488,-1.704558,
|
||||
-0.221831,0.306144,-1.838428,
|
||||
-0.274246,0.065420,-2.359878,
|
||||
2.054775,0.091828,-0.677912,
|
||||
-0.148262,0.773865,-0.947432,
|
||||
0.101020,0.922236,-0.839739,
|
||||
0.312442,0.779166,-1.109731,
|
||||
-0.262315,0.721321,-1.533752,
|
||||
-0.404757,0.197895,-0.782219,
|
||||
0.568488,0.537125,-0.913448,
|
||||
0.115069,0.760356,-1.450921,
|
||||
-0.061115,0.654189,-0.643377,
|
||||
0.205810,0.801703,-0.757537,
|
||||
0.344937,0.262088,-0.492076,
|
||||
0.077232,0.934717,-1.202342,
|
||||
-0.102879,0.422805,-0.489015,
|
||||
-0.269697,0.566033,-0.874217,
|
||||
-0.186512,0.743264,-1.152426
|
||||
];
|
||||
|
||||
this.indices =
|
||||
[
|
||||
0,1,2,
|
||||
3,4,2,
|
||||
5,6,4,
|
||||
7,8,9,
|
||||
8,10,11,
|
||||
9,12,13,
|
||||
14,15,16,
|
||||
14,6,17,
|
||||
6,15,17,
|
||||
14,18,19,
|
||||
18,20,19,
|
||||
21,22,23,
|
||||
24,25,21,
|
||||
24,23,26,
|
||||
27,28,29,
|
||||
20,30,27,
|
||||
28,31,29,
|
||||
32,33,31,
|
||||
34,35,36,
|
||||
36,25,37,
|
||||
36,38,25,
|
||||
39,40,41,
|
||||
40,42,43,
|
||||
33,42,39,
|
||||
40,44,41,
|
||||
44,0,45,
|
||||
40,46,44,
|
||||
46,0,44,
|
||||
41,12,47,
|
||||
47,12,48,
|
||||
41,35,34,
|
||||
48,35,47,
|
||||
48,11,49,
|
||||
11,50,49,
|
||||
50,51,49,
|
||||
50,52,51,
|
||||
51,48,49,
|
||||
53,32,28,
|
||||
54,55,56,
|
||||
57,58,32,
|
||||
59,16,60,
|
||||
28,59,53,
|
||||
59,61,18,
|
||||
62,63,64,
|
||||
65,66,67,
|
||||
68,5,69,
|
||||
70,43,54,
|
||||
63,1,71,
|
||||
71,72,46,
|
||||
13,45,2,
|
||||
9,4,7,
|
||||
4,26,7,
|
||||
26,14,24,
|
||||
26,6,14,
|
||||
19,37,24,
|
||||
37,29,36,
|
||||
29,34,36,
|
||||
44,13,41,
|
||||
2,1,3,
|
||||
2,45,0,
|
||||
0,72,1,
|
||||
9,2,4,
|
||||
3,5,4,
|
||||
5,73,6,
|
||||
7,10,8,
|
||||
7,26,10,
|
||||
9,8,12,
|
||||
8,11,12,
|
||||
14,17,15,
|
||||
6,73,15,
|
||||
14,16,18,
|
||||
18,61,20,
|
||||
24,21,23,
|
||||
21,38,22,
|
||||
24,37,25,
|
||||
21,25,38,
|
||||
26,23,10,
|
||||
23,22,10,
|
||||
27,30,28,
|
||||
20,61,30,
|
||||
28,32,31,
|
||||
32,58,33,
|
||||
36,35,52,
|
||||
74,75,76,
|
||||
36,52,38,
|
||||
40,39,42,
|
||||
33,58,42,
|
||||
40,43,46,
|
||||
46,72,0,
|
||||
41,13,12,
|
||||
41,47,35,
|
||||
48,52,35,
|
||||
48,12,11,
|
||||
11,22,50,
|
||||
11,10,22,
|
||||
50,38,52,
|
||||
22,38,50,
|
||||
48,51,52,
|
||||
53,57,32,
|
||||
43,42,57,
|
||||
57,42,58,
|
||||
59,18,16,
|
||||
28,30,59,
|
||||
59,30,61,
|
||||
5,62,69,
|
||||
60,16,15,
|
||||
66,73,68,
|
||||
71,70,77,
|
||||
63,3,1,
|
||||
71,1,72,
|
||||
13,2,9,
|
||||
4,6,26,
|
||||
14,19,24,
|
||||
19,20,37,
|
||||
37,27,29,
|
||||
37,20,27,
|
||||
29,31,34,
|
||||
31,33,34,
|
||||
34,39,41,
|
||||
34,33,39,
|
||||
44,45,13,
|
||||
55,78,56,
|
||||
59,60,53,
|
||||
79,60,65,
|
||||
77,56,80,
|
||||
81,82,75,
|
||||
82,76,75,
|
||||
60,76,83,
|
||||
76,80,84,
|
||||
53,83,85,
|
||||
86,74,87,
|
||||
64,76,79,
|
||||
74,84,87,
|
||||
53,60,83,
|
||||
78,85,86,
|
||||
67,64,79,
|
||||
67,79,65,
|
||||
67,66,68,
|
||||
67,69,62,
|
||||
67,68,69,
|
||||
60,66,65,
|
||||
67,62,64,
|
||||
62,3,63,
|
||||
68,73,5,
|
||||
5,3,62,
|
||||
66,15,73,
|
||||
79,76,60,
|
||||
64,63,76,
|
||||
60,15,66,
|
||||
76,82,83,
|
||||
85,82,81,
|
||||
85,83,82,
|
||||
74,85,81,
|
||||
56,78,86,
|
||||
56,87,84,
|
||||
56,86,87,
|
||||
56,84,80,
|
||||
71,80,63,
|
||||
53,55,57,
|
||||
56,77,70,
|
||||
56,70,54,
|
||||
43,55,54,
|
||||
70,46,43,
|
||||
71,46,70,
|
||||
76,63,80,
|
||||
86,85,74,
|
||||
74,76,84,
|
||||
78,53,85,
|
||||
71,77,80,
|
||||
53,78,55,
|
||||
43,57,55,
|
||||
74,81,75
|
||||
];
|
||||
|
||||
this.colors = [];
|
||||
for(var i = 0; i < this.positions.length; i += 3)
|
||||
{
|
||||
this.colors.push(0.5, 0.5, 0.5, 1);
|
||||
}
|
||||
|
||||
this.initBuffers();
|
||||
}
|
||||
}
|
||||
|
||||
class River extends Object3D
|
||||
{
|
||||
constructor()
|
||||
{
|
||||
super();
|
||||
|
||||
this.positions =
|
||||
[
|
||||
0.0, 0.0, 14.0, // index 0
|
||||
0.75, 0.0, 12.5, // index 1
|
||||
1.25, 0.0, 12.5, // index 2
|
||||
1.0, 0.0, 11.0, // index 3
|
||||
2.0, 0.0, 11.0, // index 4
|
||||
0.75, 0.0, 9.5, // index 5
|
||||
2.25, 0.0, 9.5, // index 6
|
||||
0.0, 0.0, 8.0, // index 7
|
||||
2.0, 0.0, 8.0, // index 8
|
||||
-2.25, 0.0, 6.1875, // index 9
|
||||
0.25, 0.0, 6.1875, // index 10
|
||||
-3.0, 0.0, 4.0, // index 11
|
||||
0.0, 0.0, 4.0, // index 12
|
||||
-2.25, 0.0, 1.8125, // index 13
|
||||
1.25, 0.0, 1.8125, // index 14
|
||||
0.0, 0.0, 0.0, // index 15
|
||||
4.0, 0.0, 0.0, // index 16
|
||||
0.0, -7.0, 0.0, // index 17 -> additional for waterfall
|
||||
4.0, -6.0, 0.0 // index 18 -> additional for waterfall
|
||||
];
|
||||
|
||||
this.indices =
|
||||
[
|
||||
0, 1, 2,
|
||||
1, 2, 3,
|
||||
2, 3, 4,
|
||||
3, 4, 5,
|
||||
4, 5, 6,
|
||||
5, 6, 7,
|
||||
6, 7, 8,
|
||||
7, 8, 9,
|
||||
8, 9, 10,
|
||||
9, 10, 11,
|
||||
10, 11, 12,
|
||||
11, 12, 13,
|
||||
12, 13, 14,
|
||||
13, 14, 15,
|
||||
14, 15, 16,
|
||||
15, 16, 17, // additional for waterfall
|
||||
16, 17, 18 // additional for waterfall
|
||||
];
|
||||
|
||||
this.colors = [];
|
||||
for(var i = 0; i < this.positions.length; i += 3) {
|
||||
this.colors.push(0.2, 0.2, 0.8, 1);
|
||||
}
|
||||
|
||||
this.initBuffers();
|
||||
}
|
||||
}
|
||||
69
Übung_30112023/Insel/index.html
Normal file
69
Übung_30112023/Insel/index.html
Normal file
@ -0,0 +1,69 @@
|
||||
<!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>
|
||||
534
Übung_30112023/Insel/main.js
Normal file
534
Übung_30112023/Insel/main.js
Normal file
@ -0,0 +1,534 @@
|
||||
let gl;
|
||||
let program;
|
||||
let positions1,
|
||||
positions2,
|
||||
colors1,
|
||||
colors2,
|
||||
indices1,
|
||||
indices2;
|
||||
let posVBO1,
|
||||
posVBO2,
|
||||
colorVBO1,
|
||||
colorVBO2,
|
||||
indexVBO1,
|
||||
indexVBO2;
|
||||
let posLoc,
|
||||
colorLoc;
|
||||
let objects = [];
|
||||
let lastTimestamp;
|
||||
const {mat4, mat3, vec3} = glMatrix;
|
||||
|
||||
function main() {
|
||||
|
||||
// Get canvas and setup WebGL context
|
||||
const canvas = document.getElementById("gl-canvas");
|
||||
gl = canvas.getContext('webgl2');
|
||||
|
||||
// Configure viewport
|
||||
gl.viewport(0,0,canvas.width,canvas.height);
|
||||
gl.clearColor(1.0,1.0,1.0,1.0);
|
||||
|
||||
gl.enable(gl.DEPTH_TEST);
|
||||
|
||||
// Init shader program via additional function and bind it
|
||||
program = initShaders(gl, "vertex-shader", "fragment-shader");
|
||||
gl.useProgram(program);
|
||||
|
||||
// Get locations of shader variables
|
||||
posLoc = gl.getAttribLocation(program, "vPosition");
|
||||
colorLoc = gl.getAttribLocation(program, "vColor");
|
||||
|
||||
const moveLoc = gl.getUniformLocation(program, "moveDown");
|
||||
|
||||
transformMatrix = [
|
||||
1, 0, 0, 0,
|
||||
0, 1, 0, -0.2,
|
||||
0, 0, 1, 0,
|
||||
0, 0, 0, 1,
|
||||
];
|
||||
|
||||
gl.uniformMatrix4fv(moveLoc, false, transformMatrix)
|
||||
|
||||
const viewLoc = gl.getUniformLocation(program, "viewMatrix");
|
||||
|
||||
/*
|
||||
viewMatrix = [
|
||||
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
|
||||
];
|
||||
*/
|
||||
|
||||
viewMatrix = mat4.create();
|
||||
projectionMatrix = mat4.create();
|
||||
modelViewProjection = mat4.create();
|
||||
mat4.perspective(projectionMatrix, 90.0, 1.0, 0.0001, 1000.0);
|
||||
|
||||
gl.uniformMatrix4fv(viewLoc, false, viewMatrix);
|
||||
|
||||
|
||||
// Only clear once
|
||||
gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
|
||||
|
||||
objects.push(new Insel());
|
||||
objects.push(new River());
|
||||
|
||||
//initListener();
|
||||
|
||||
window.requestAnimationFrame(render);
|
||||
};
|
||||
|
||||
|
||||
function initListener()
|
||||
{
|
||||
document.body.addEventListener('mousemove', printMouseMovement);
|
||||
document.body.addEventListener('keydown', printKeyPress);
|
||||
}
|
||||
|
||||
function printMouseMovement(e)
|
||||
{
|
||||
console.log('mousemoved');
|
||||
}
|
||||
|
||||
function printKeyPress(e)
|
||||
{
|
||||
console.log(e.which);
|
||||
}
|
||||
|
||||
|
||||
function render(timestamp)
|
||||
{
|
||||
if(lastTimestamp == undefined)
|
||||
{
|
||||
lastTimestamp = timestamp;
|
||||
}
|
||||
|
||||
const elapsed = timestamp - lastTimestamp;
|
||||
|
||||
let p = [3 * Math.sin(0.001 * timestamp), 1, 3 * Math.cos(0.001 * timestamp)];
|
||||
mat4.lookAt(viewMatrix, p, [0, 0, 0], [0, 1, 0]);
|
||||
|
||||
mat4.multiply(modelViewProjection, projectionMatrix, viewMatrix);
|
||||
viewLoc = gl.getUniformLocation(program, "viewMatrix");
|
||||
gl.uniformMatrix4fv(viewLoc, false, modelViewProjection);
|
||||
|
||||
for (var i = 0; i < objects.length; i++)
|
||||
{
|
||||
objects[i].render();
|
||||
}
|
||||
|
||||
window.requestAnimationFrame(render);
|
||||
}
|
||||
|
||||
function init1() {
|
||||
|
||||
// Specify geometry
|
||||
positions1 = [
|
||||
-0.344503,-0.106899,-2.313329,
|
||||
0.254658,0.065420,-2.430170,
|
||||
0.506020,-0.293147,-2.207084,
|
||||
1.415955,0.064912,-1.957500,
|
||||
1.489208,-0.318759,-1.320762,
|
||||
1.685851,0.084184,-1.268915,
|
||||
2.014675,-0.126122,-0.782958,
|
||||
0.957233,-1.089151,-0.905606,
|
||||
0.454708,-1.256676,-0.897711,
|
||||
0.810208,-0.709404,-1.141590,
|
||||
0.739686,-1.249709,-0.541415,
|
||||
0.231851,-1.904112,-0.621845,
|
||||
0.052641,-1.633897,-0.758536,
|
||||
-0.020753,-0.743329,-1.377161,
|
||||
1.364762,-0.324582,0.647285,
|
||||
2.074500,0.090083,0.068582,
|
||||
1.608835,0.037777,0.559365,
|
||||
1.955554,-0.191974,0.132568,
|
||||
1.393132,0.037777,1.383312,
|
||||
1.210661,-0.322174,1.134609,
|
||||
0.514977,-0.286422,1.576757,
|
||||
0.507135,-1.581211,0.348922,
|
||||
0.342563,-2.052501,-0.027325,
|
||||
0.620568,-1.491335,-0.146730,
|
||||
0.745909,-0.723539,0.485115,
|
||||
0.089439,-1.345612,0.360167,
|
||||
1.089500,-0.770651,-0.314462,
|
||||
-0.123718,-0.298339,1.611730,
|
||||
-0.930959,0.037777,1.550149,
|
||||
-0.866234,-0.291222,1.300128,
|
||||
-0.414258,0.037777,1.808618,
|
||||
-1.444312,-0.282136,0.794076,
|
||||
-1.591571,0.097928,0.827036,
|
||||
-1.839477,-0.177971,0.145553,
|
||||
-0.936850,-0.751093,-0.176985,
|
||||
-0.611777,-1.317411,-0.262516,
|
||||
-0.326162,-1.310280,0.225784,
|
||||
0.289486,-0.743127,0.679448,
|
||||
0.020776,-1.770522,0.330532,
|
||||
-1.675519,-0.336500,-0.606829,
|
||||
-1.607249,0.010755,-1.680275,
|
||||
-0.625318,-0.725192,-1.039731,
|
||||
-2.011082,0.043485,-0.744422,
|
||||
-1.247727,0.059337,-1.332687,
|
||||
-0.934732,-0.314137,-1.943344,
|
||||
-0.184171,-0.491687,-2.096484,
|
||||
-0.707720,0.065178,-2.205832,
|
||||
-0.350659,-1.373304,-0.758204,
|
||||
-0.299529,-2.155551,-0.308846,
|
||||
-0.086080,-2.478361,-0.004677,
|
||||
0.091215,-2.267556,0.130842,
|
||||
-0.260030,-2.240649,0.060849,
|
||||
-0.470828,-1.954876,0.024811,
|
||||
-0.278168,0.037777,-0.209083,
|
||||
-0.914878,0.210568,-1.267986,
|
||||
-0.862298,0.231412,-0.781910,
|
||||
-0.302799,0.520691,-1.301783,
|
||||
-1.068480,0.101026,-0.360536,
|
||||
-1.736910,0.103204,0.106553,
|
||||
0.236277,0.037777,0.701510,
|
||||
0.656348,0.037777,-0.098120,
|
||||
0.501631,0.037777,1.688231,
|
||||
1.034499,0.275328,-1.269756,
|
||||
0.471459,0.267036,-1.698558,
|
||||
0.637660,0.376390,-1.207861,
|
||||
0.812177,0.491673,-0.567514,
|
||||
1.244986,0.398908,-0.324291,
|
||||
1.002755,0.639249,-0.717163,
|
||||
1.381545,0.288786,-0.765328,
|
||||
1.348978,0.284964,-1.076072,
|
||||
-0.505260,0.213488,-1.704558,
|
||||
-0.221831,0.306144,-1.838428,
|
||||
-0.274246,0.065420,-2.359878,
|
||||
2.054775,0.091828,-0.677912,
|
||||
-0.148262,0.773865,-0.947432,
|
||||
0.101020,0.922236,-0.839739,
|
||||
0.312442,0.779166,-1.109731,
|
||||
-0.262315,0.721321,-1.533752,
|
||||
-0.404757,0.197895,-0.782219,
|
||||
0.568488,0.537125,-0.913448,
|
||||
0.115069,0.760356,-1.450921,
|
||||
-0.061115,0.654189,-0.643377,
|
||||
0.205810,0.801703,-0.757537,
|
||||
0.344937,0.262088,-0.492076,
|
||||
0.077232,0.934717,-1.202342,
|
||||
-0.102879,0.422805,-0.489015,
|
||||
-0.269697,0.566033,-0.874217,
|
||||
-0.186512,0.743264,-1.152426
|
||||
];
|
||||
|
||||
indices1 = [
|
||||
0,1,2,
|
||||
3,4,2,
|
||||
5,6,4,
|
||||
7,8,9,
|
||||
8,10,11,
|
||||
9,12,13,
|
||||
14,15,16,
|
||||
14,6,17,
|
||||
6,15,17,
|
||||
14,18,19,
|
||||
18,20,19,
|
||||
21,22,23,
|
||||
24,25,21,
|
||||
24,23,26,
|
||||
27,28,29,
|
||||
20,30,27,
|
||||
28,31,29,
|
||||
32,33,31,
|
||||
34,35,36,
|
||||
36,25,37,
|
||||
36,38,25,
|
||||
39,40,41,
|
||||
40,42,43,
|
||||
33,42,39,
|
||||
40,44,41,
|
||||
44,0,45,
|
||||
40,46,44,
|
||||
46,0,44,
|
||||
41,12,47,
|
||||
47,12,48,
|
||||
41,35,34,
|
||||
48,35,47,
|
||||
48,11,49,
|
||||
11,50,49,
|
||||
50,51,49,
|
||||
50,52,51,
|
||||
51,48,49,
|
||||
53,32,28,
|
||||
54,55,56,
|
||||
57,58,32,
|
||||
59,16,60,
|
||||
28,59,53,
|
||||
59,61,18,
|
||||
62,63,64,
|
||||
65,66,67,
|
||||
68,5,69,
|
||||
70,43,54,
|
||||
63,1,71,
|
||||
71,72,46,
|
||||
13,45,2,
|
||||
9,4,7,
|
||||
4,26,7,
|
||||
26,14,24,
|
||||
26,6,14,
|
||||
19,37,24,
|
||||
37,29,36,
|
||||
29,34,36,
|
||||
44,13,41,
|
||||
2,1,3,
|
||||
2,45,0,
|
||||
0,72,1,
|
||||
9,2,4,
|
||||
3,5,4,
|
||||
5,73,6,
|
||||
7,10,8,
|
||||
7,26,10,
|
||||
9,8,12,
|
||||
8,11,12,
|
||||
14,17,15,
|
||||
6,73,15,
|
||||
14,16,18,
|
||||
18,61,20,
|
||||
24,21,23,
|
||||
21,38,22,
|
||||
24,37,25,
|
||||
21,25,38,
|
||||
26,23,10,
|
||||
23,22,10,
|
||||
27,30,28,
|
||||
20,61,30,
|
||||
28,32,31,
|
||||
32,58,33,
|
||||
36,35,52,
|
||||
74,75,76,
|
||||
36,52,38,
|
||||
40,39,42,
|
||||
33,58,42,
|
||||
40,43,46,
|
||||
46,72,0,
|
||||
41,13,12,
|
||||
41,47,35,
|
||||
48,52,35,
|
||||
48,12,11,
|
||||
11,22,50,
|
||||
11,10,22,
|
||||
50,38,52,
|
||||
22,38,50,
|
||||
48,51,52,
|
||||
53,57,32,
|
||||
43,42,57,
|
||||
57,42,58,
|
||||
59,18,16,
|
||||
28,30,59,
|
||||
59,30,61,
|
||||
5,62,69,
|
||||
60,16,15,
|
||||
66,73,68,
|
||||
71,70,77,
|
||||
63,3,1,
|
||||
71,1,72,
|
||||
13,2,9,
|
||||
4,6,26,
|
||||
14,19,24,
|
||||
19,20,37,
|
||||
37,27,29,
|
||||
37,20,27,
|
||||
29,31,34,
|
||||
31,33,34,
|
||||
34,39,41,
|
||||
34,33,39,
|
||||
44,45,13,
|
||||
55,78,56,
|
||||
59,60,53,
|
||||
79,60,65,
|
||||
77,56,80,
|
||||
81,82,75,
|
||||
82,76,75,
|
||||
60,76,83,
|
||||
76,80,84,
|
||||
53,83,85,
|
||||
86,74,87,
|
||||
64,76,79,
|
||||
74,84,87,
|
||||
53,60,83,
|
||||
78,85,86,
|
||||
67,64,79,
|
||||
67,79,65,
|
||||
67,66,68,
|
||||
67,69,62,
|
||||
67,68,69,
|
||||
60,66,65,
|
||||
67,62,64,
|
||||
62,3,63,
|
||||
68,73,5,
|
||||
5,3,62,
|
||||
66,15,73,
|
||||
79,76,60,
|
||||
64,63,76,
|
||||
60,15,66,
|
||||
76,82,83,
|
||||
85,82,81,
|
||||
85,83,82,
|
||||
74,85,81,
|
||||
56,78,86,
|
||||
56,87,84,
|
||||
56,86,87,
|
||||
56,84,80,
|
||||
71,80,63,
|
||||
53,55,57,
|
||||
56,77,70,
|
||||
56,70,54,
|
||||
43,55,54,
|
||||
70,46,43,
|
||||
71,46,70,
|
||||
76,63,80,
|
||||
86,85,74,
|
||||
74,76,84,
|
||||
78,53,85,
|
||||
71,77,80,
|
||||
53,78,55,
|
||||
43,57,55,
|
||||
74,81,75
|
||||
];
|
||||
|
||||
colors1 = [];
|
||||
for(var i = 0; i < positions1.length; i += 3) {
|
||||
colors1.push(0.5, 0.5, 0.5, 1);
|
||||
}
|
||||
|
||||
initBuffers1();
|
||||
}
|
||||
|
||||
function initBuffers1() {
|
||||
|
||||
// Create VBO for positions and activate it
|
||||
posVBO1 = gl.createBuffer();
|
||||
gl.bindBuffer(gl.ARRAY_BUFFER, posVBO1);
|
||||
|
||||
// Fill VBO with positions
|
||||
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(positions1), gl.STATIC_DRAW);
|
||||
|
||||
// Create VBO for colors and activate it
|
||||
colorVBO1 = gl.createBuffer();
|
||||
gl.bindBuffer(gl.ARRAY_BUFFER, colorVBO1);
|
||||
|
||||
// Fill VBO with colors
|
||||
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(colors1), gl.STATIC_DRAW);
|
||||
|
||||
// Create VBO for indices and activate it
|
||||
indexVBO1 = gl.createBuffer();
|
||||
gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, indexVBO1);
|
||||
|
||||
// Fill VBO with indices
|
||||
gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(indices1), gl.STATIC_DRAW);
|
||||
}
|
||||
|
||||
function render1() {
|
||||
|
||||
// Link data in VBO to shader variables
|
||||
gl.bindBuffer(gl.ARRAY_BUFFER, posVBO1);
|
||||
gl.enableVertexAttribArray(posLoc);
|
||||
gl.vertexAttribPointer(posLoc, 3, gl.FLOAT, false, 0, 0);
|
||||
|
||||
// Link data in VBO to shader variables
|
||||
gl.bindBuffer(gl.ARRAY_BUFFER, colorVBO1);
|
||||
gl.enableVertexAttribArray(colorLoc);
|
||||
gl.vertexAttribPointer(colorLoc, 4, gl.FLOAT, false, 0, 0);
|
||||
|
||||
// Render
|
||||
gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, indexVBO1);
|
||||
gl.drawElements(gl.TRIANGLES, indices1.length, gl.UNSIGNED_SHORT, 0);
|
||||
}
|
||||
|
||||
function init2() {
|
||||
|
||||
// Specify geometry
|
||||
positions2 = [
|
||||
0.0, 0.0, 14.0, // index 0
|
||||
0.75, 0.0, 12.5, // index 1
|
||||
1.25, 0.0, 12.5, // index 2
|
||||
1.0, 0.0, 11.0, // index 3
|
||||
2.0, 0.0, 11.0, // index 4
|
||||
0.75, 0.0, 9.5, // index 5
|
||||
2.25, 0.0, 9.5, // index 6
|
||||
0.0, 0.0, 8.0, // index 7
|
||||
2.0, 0.0, 8.0, // index 8
|
||||
-2.25, 0.0, 6.1875, // index 9
|
||||
0.25, 0.0, 6.1875, // index 10
|
||||
-3.0, 0.0, 4.0, // index 11
|
||||
0.0, 0.0, 4.0, // index 12
|
||||
-2.25, 0.0, 1.8125, // index 13
|
||||
1.25, 0.0, 1.8125, // index 14
|
||||
0.0, 0.0, 0.0, // index 15
|
||||
4.0, 0.0, 0.0, // index 16
|
||||
0.0, -7.0, 0.0, // index 17 -> additional for waterfall
|
||||
4.0, -6.0, 0.0 // index 18 -> additional for waterfall
|
||||
];
|
||||
|
||||
indices2 = [
|
||||
0, 1, 2,
|
||||
1, 2, 3,
|
||||
2, 3, 4,
|
||||
3, 4, 5,
|
||||
4, 5, 6,
|
||||
5, 6, 7,
|
||||
6, 7, 8,
|
||||
7, 8, 9,
|
||||
8, 9, 10,
|
||||
9, 10, 11,
|
||||
10, 11, 12,
|
||||
11, 12, 13,
|
||||
12, 13, 14,
|
||||
13, 14, 15,
|
||||
14, 15, 16,
|
||||
15, 16, 17, // additional for waterfall
|
||||
16, 17, 18 // additional for waterfall
|
||||
];
|
||||
|
||||
colors2 = [];
|
||||
for(var i = 0; i < positions2.length; i += 3) {
|
||||
colors2.push(0.2, 0.2, 0.8, 1);
|
||||
}
|
||||
|
||||
initBuffers2();
|
||||
}
|
||||
|
||||
function initBuffers2() {
|
||||
// Create VBO for positions and activate it
|
||||
posVBO2 = gl.createBuffer();
|
||||
gl.bindBuffer(gl.ARRAY_BUFFER, posVBO2);
|
||||
|
||||
// Fill VBO with positions
|
||||
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(positions2), gl.STATIC_DRAW);
|
||||
|
||||
// Create VBO for colors and activate it
|
||||
colorVBO2 = gl.createBuffer();
|
||||
gl.bindBuffer(gl.ARRAY_BUFFER, colorVBO2);
|
||||
|
||||
// Fill VBO with colors
|
||||
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(colors2), gl.STATIC_DRAW);
|
||||
|
||||
// Create VBO for indices and activate it
|
||||
indexVBO2 = gl.createBuffer();
|
||||
gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, indexVBO2);
|
||||
|
||||
// Fill VBO with indices
|
||||
gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(indices2), gl.STATIC_DRAW);
|
||||
}
|
||||
|
||||
function render2() {
|
||||
// Link data in VBO to shader variables
|
||||
gl.bindBuffer(gl.ARRAY_BUFFER, posVBO2);
|
||||
gl.enableVertexAttribArray(posLoc);
|
||||
gl.vertexAttribPointer(posLoc, 3, gl.FLOAT, false, 0, 0);
|
||||
|
||||
// Link data in VBO to shader variables
|
||||
gl.bindBuffer(gl.ARRAY_BUFFER, colorVBO2);
|
||||
gl.enableVertexAttribArray(colorLoc);
|
||||
gl.vertexAttribPointer(colorLoc, 4, gl.FLOAT, false, 0, 0);
|
||||
|
||||
// Render
|
||||
gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, indexVBO2);
|
||||
gl.drawElements(gl.TRIANGLES, indices2.length, gl.UNSIGNED_SHORT, 0);
|
||||
}
|
||||
|
||||
main();
|
||||
BIN
Übung_30112023/uebung-woche7.pdf
Normal file
BIN
Übung_30112023/uebung-woche7.pdf
Normal file
Binary file not shown.
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Reference in New Issue
Block a user