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Falta el 9 #1

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6 changes: 3 additions & 3 deletions basic_concepts/clear-canvas.html
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@
</head>

<body onload="init()">
<canvas id="myCanvas" width="640" height="480"></canvas>
<canvas id="myCanvas" width="1000" height="500"></canvas>
</body>

<script>
Expand All @@ -22,11 +22,11 @@
}

// Set clear color
gl.clearColor(0.0, 0.0, 0.0, 1.0);
gl.clearColor(1.0, 1.0, 0.0, 1.0);

// Clear canvas
gl.clear(gl.COLOR_BUFFER_BIT);
}
</script>

</html>
</html>
77 changes: 7 additions & 70 deletions basic_concepts/draw-a-point.html
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Original file line number Diff line number Diff line change
Expand Up @@ -9,76 +9,13 @@
<canvas id="myCanvas" width="640" height="480"></canvas>
</body>

<script id="shaderVs" type="x-shader/x-vertex">
void main() {
gl_Position = vec4(0.0, 0.0, 0.0, 1.0);
gl_PointSize = 10.0;
}
</script>
<script
src = "prueba1.vert"></script>

<script id="shaderFs" type="x-shader/x-fragment">
void main() {
gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0);
}
</script>
<script
src = "prueba2.frag"></script>

<script>
function init() {
// Get canvas object from the DOM
var canvas = document.getElementById("myCanvas");
<script
src = "prueba.js"> </script>

// Init WebGL context
var gl = canvas.getContext("webgl");
if (!gl) {
console.log("Failed to get the rendering context for WebGL");
return;
}

// Clear canvas
gl.clearColor(0.0, 0.0, 0.0, 1.0);
gl.clear(gl.COLOR_BUFFER_BIT);

// Init shaders
var vs = document.getElementById('shaderVs').innerHTML;
var fs = document.getElementById('shaderFs').innerHTML;
initShaders(gl, vs, fs);

// Draw a point
gl.drawArrays(gl.POINTS, 0, 1);
}


function initShaders(gl, vs_source, fs_source) {
// Compile shaders
var vertexShader = makeShader(gl, vs_source, gl.VERTEX_SHADER);
var fragmentShader = makeShader(gl, fs_source, gl.FRAGMENT_SHADER);

// Create program
var glProgram = gl.createProgram();

// Attach and link shaders to the program
gl.attachShader(glProgram, vertexShader);
gl.attachShader(glProgram, fragmentShader);
gl.linkProgram(glProgram);
if (!gl.getProgramParameter(glProgram, gl.LINK_STATUS)) {
alert("Unable to initialize the shader program");
return;
}

// Use program
gl.useProgram(glProgram);
}

function makeShader(gl, src, type) {
var shader = gl.createShader(type);
gl.shaderSource(shader, src);
gl.compileShader(shader);
if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) {
alert("Error compiling shader: " + gl.getShaderInfoLog(shader));
return;
}
return shader;
}
</script>

</html>
</html>
57 changes: 57 additions & 0 deletions basic_concepts/prueba.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,57 @@

function init() {
// Get canvas object from the DOM
var canvas = document.getElementById("myCanvas");

// Init WebGL context
var gl = canvas.getContext("webgl");
if (!gl) {
console.log("Failed to get the rendering context for WebGL");
return;
}

// Clear canvas
gl.clearColor(0.0, 0.0, 0.0, 1.0);
gl.clear(gl.COLOR_BUFFER_BIT);

// Init shaders
var vs = document.getElementById('shaderVs').innerHTML;
var fs = document.getElementById('shaderFs').innerHTML;
initShaders(gl, vs, fs);

// Draw a point
gl.drawArrays(gl.POINTS, 0, 1);
}


function initShaders(gl, vs_source, fs_source) {
// Compile shaders
var vertexShader = makeShader(gl, vs_source, gl.VERTEX_SHADER);
var fragmentShader = makeShader(gl, fs_source, gl.FRAGMENT_SHADER);

// Create program
var glProgram = gl.createProgram();

// Attach and link shaders to the program
gl.attachShader(glProgram, vertexShader);
gl.attachShader(glProgram, fragmentShader);
gl.linkProgram(glProgram);
if (!gl.getProgramParameter(glProgram, gl.LINK_STATUS)) {
alert("Unable to initialize the shader program");
return;
}

// Use program
gl.useProgram(glProgram);
}

function makeShader(gl, src, type) {
var shader = gl.createShader(type);
gl.shaderSource(shader, src);
gl.compileShader(shader);
if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) {
alert("Error compiling shader: " + gl.getShaderInfoLog(shader));
return;
}
return shader;
}
4 changes: 4 additions & 0 deletions basic_concepts/prueba1.vert
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Original file line number Diff line number Diff line change
@@ -0,0 +1,4 @@
void main() {
gl_Position = vec4(0.0, 0.0, 0.0, 1.0);
gl_PointSize = 10.0;
}
3 changes: 3 additions & 0 deletions basic_concepts/prueba2.frag
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Original file line number Diff line number Diff line change
@@ -0,0 +1,3 @@
void main() {
gl_FragColor = vec4(1.0, 1.0, 0.5, 1.0);
}