Initial Query
Draw an image of a triangle using WebGL in a single HTML file. Make the canvas take the full page.
LLM Generation
Query
Draw an image of a triangle using WebGL in a single HTML file. Make the canvas take the full page.
Output
Sure, here's a simple example of how you can draw a triangle using WebGL in a single HTML file. This example will make the canvas take the full page.
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62 | <!DOCTYPE html>
<html>
<head>
<style>
body { margin: 0; }
canvas { display: block; }
</style>
</head>
<body>
<canvas id="canvas"></canvas>
<script>
var canvas = document.getElementById('canvas');
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
var gl = canvas.getContext('webgl') || canvas.getContext('experimental-webgl');
var vertexShader = gl.createShader(gl.VERTEX_SHADER);
gl.shaderSource(vertexShader, `
attribute vec2 a_position;
void main() {
gl_Position = vec4(a_position, 0, 1);
}
`);
gl.compileShader(vertexShader);
var fragmentShader = gl.createShader(gl.FRAGMENT_SHADER);
gl.shaderSource(fragmentShader, `
void main() {
gl_FragColor = vec4(1, 0, 0, 1);
}
`);
gl.compileShader(fragmentShader);
var program = gl.createProgram();
gl.attachShader(program, vertexShader);
gl.attachShader(program, fragmentShader);
gl.linkProgram(program);
gl.useProgram(program);
var positionAttributeLocation = gl.getAttribLocation(program, 'a_position');
var positions = [
0, 0,
0.5, 0.7,
0.7, 0.2,
];
var buffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(positions), gl.STATIC_DRAW);
gl.enableVertexAttribArray(positionAttributeLocation);
gl.vertexAttribPointer(positionAttributeLocation, 2, gl.FLOAT, false, 0, 0);
gl.clearColor(0, 0, 0, 0);
gl.clear(gl.COLOR_BUFFER_BIT);
gl.drawArrays(gl.TRIANGLES, 0, 3);
</script>
</body>
</html>
|
This code creates a WebGL context, compiles shaders, sets up a buffer, and draws a triangle. The triangle is red and the background is black. The canvas is set to take the full page size.
Extract Code
I extracted the following code from that output:
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62 | <!DOCTYPE html>
<html>
<head>
<style>
body { margin: 0; }
canvas { display: block; }
</style>
</head>
<body>
<canvas id="canvas"></canvas>
<script>
var canvas = document.getElementById('canvas');
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
var gl = canvas.getContext('webgl') || canvas.getContext('experimental-webgl');
var vertexShader = gl.createShader(gl.VERTEX_SHADER);
gl.shaderSource(vertexShader, `
attribute vec2 a_position;
void main() {
gl_Position = vec4(a_position, 0, 1);
}
`);
gl.compileShader(vertexShader);
var fragmentShader = gl.createShader(gl.FRAGMENT_SHADER);
gl.shaderSource(fragmentShader, `
void main() {
gl_FragColor = vec4(1, 0, 0, 1);
}
`);
gl.compileShader(fragmentShader);
var program = gl.createProgram();
gl.attachShader(program, vertexShader);
gl.attachShader(program, fragmentShader);
gl.linkProgram(program);
gl.useProgram(program);
var positionAttributeLocation = gl.getAttribLocation(program, 'a_position');
var positions = [
0, 0,
0.5, 0.7,
0.7, 0.2,
];
var buffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(positions), gl.STATIC_DRAW);
gl.enableVertexAttribArray(positionAttributeLocation);
gl.vertexAttribPointer(positionAttributeLocation, 2, gl.FLOAT, false, 0, 0);
gl.clearColor(0, 0, 0, 0);
gl.clear(gl.COLOR_BUFFER_BIT);
gl.drawArrays(gl.TRIANGLES, 0, 3);
</script>
</body>
</html>
|
Check if all of the following conditions are true:
HTML Render
Rendering the webpage gives the following image:
LLM Generation
Query
This is a screenshot of a webpage that draws something with webgl. I'm trying to see if it drwe what I wanted. Describe what is drawn in this image?
Output
The image shows a simple red triangle against a white background. The triangle is oriented with one vertex pointing upwards and the base at the bottom. It appears to be a solid color fill with no gradients or textures.
LLM Generation
Query
Does this answer say that there is a picture of a triangle "The image shows a simple red triangle against a white background. The triangle is oriented with one vertex pointing upwards and the base at the bottom. It appears to be a solid color fill with no gradients or textures."? Answer "Yes it does" or "No it does not".
Output
Yes it does.
Substring Evaluation
Testing if the previous output contains the string es it does: True
Check this condition is not true:
Substring Evaluation
Testing if the previous output contains the string THREE.: False
Final Answer: True
Final Answer: True
Initial Query
Draw an image of a triangle using WebGL in a single HTML file. Make the canvas take the full page.
LLM Generation
Query
Draw an image of a triangle using WebGL in a single HTML file. Make the canvas take the full page.
Output
Sure, here's a simple example of how you can draw a triangle using WebGL in a single HTML file. This example will make the canvas take the full page.
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58 | <!DOCTYPE html>
<html>
<head>
<title>WebGL Triangle</title>
<style>
body { margin: 0; overflow: hidden; }
#canvas { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
</style>
</head>
<body>
<canvas id="canvas"></canvas>
<script>
var canvas = document.getElementById('canvas');
var gl = canvas.getContext('webgl') || canvas.getContext('experimental-webgl');
var vertexShader = gl.createShader(gl.VERTEX_SHADER);
gl.shaderSource(vertexShader, `
attribute vec2 position;
void main() {
gl_Position = vec4(position, 0.0, 1.0);
}
`);
gl.compileShader(vertexShader);
var fragmentShader = gl.createShader(gl.FRAGMENT_SHADER);
gl.shaderSource(fragmentShader, `
void main() {
gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0);
}
`);
gl.compileShader(fragmentShader);
var program = gl.createProgram();
gl.attachShader(program, vertexShader);
gl.attachShader(program, fragmentShader);
gl.linkProgram(program);
gl.useProgram(program);
var positionBuffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, positionBuffer);
var positions = [
0.0, 0.5,
-0.5, -0.5,
0.5, -0.5,
];
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(positions), gl.STATIC_DRAW);
var positionAttributeLocation = gl.getAttribLocation(program, 'position');
gl.enableVertexAttribArray(positionAttributeLocation);
gl.vertexAttribPointer(positionAttributeLocation, 2, gl.FLOAT, false, 0, 0);
gl.clearColor(0.0, 0.0, 0.0, 1.0);
gl.clear(gl.COLOR_BUFFER_BIT);
gl.drawArrays(gl.TRIANGLES, 0, 3);
</script>
</body>
</html>
|
This code creates a WebGL context, compiles shaders, sets up a buffer, and draws a triangle. The triangle is red and the background is black. The canvas is set to take the full page with CSS.
Extract Code
I extracted the following code from that output:
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58 | <!DOCTYPE html>
<html>
<head>
<title>WebGL Triangle</title>
<style>
body { margin: 0; overflow: hidden; }
#canvas { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
</style>
</head>
<body>
<canvas id="canvas"></canvas>
<script>
var canvas = document.getElementById('canvas');
var gl = canvas.getContext('webgl') || canvas.getContext('experimental-webgl');
var vertexShader = gl.createShader(gl.VERTEX_SHADER);
gl.shaderSource(vertexShader, `
attribute vec2 position;
void main() {
gl_Position = vec4(position, 0.0, 1.0);
}
`);
gl.compileShader(vertexShader);
var fragmentShader = gl.createShader(gl.FRAGMENT_SHADER);
gl.shaderSource(fragmentShader, `
void main() {
gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0);
}
`);
gl.compileShader(fragmentShader);
var program = gl.createProgram();
gl.attachShader(program, vertexShader);
gl.attachShader(program, fragmentShader);
gl.linkProgram(program);
gl.useProgram(program);
var positionBuffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, positionBuffer);
var positions = [
0.0, 0.5,
-0.5, -0.5,
0.5, -0.5,
];
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(positions), gl.STATIC_DRAW);
var positionAttributeLocation = gl.getAttribLocation(program, 'position');
gl.enableVertexAttribArray(positionAttributeLocation);
gl.vertexAttribPointer(positionAttributeLocation, 2, gl.FLOAT, false, 0, 0);
gl.clearColor(0.0, 0.0, 0.0, 1.0);
gl.clear(gl.COLOR_BUFFER_BIT);
gl.drawArrays(gl.TRIANGLES, 0, 3);
</script>
</body>
</html>
|
Check if all of the following conditions are true:
HTML Render
Rendering the webpage gives the following image:
LLM Generation
Query
This is a screenshot of a webpage that draws something with webgl. I'm trying to see if it drwe what I wanted. Describe what is drawn in this image?
Output
The image shows a red triangle centered on a black background. The triangle is pointing upwards and appears to be a solid color with no gradients or textures.
LLM Generation
Query
Does this answer say that there is a picture of a triangle "The image shows a red triangle centered on a black background. The triangle is pointing upwards and appears to be a solid color with no gradients or textures."? Answer "Yes it does" or "No it does not".
Output
Yes it does.
Substring Evaluation
Testing if the previous output contains the string es it does: True
Check this condition is not true:
Substring Evaluation
Testing if the previous output contains the string THREE.: False
Final Answer: True
Final Answer: True
Initial Query
Draw an image of a triangle using WebGL in a single HTML file. Make the canvas take the full page.
LLM Generation
Query
Draw an image of a triangle using WebGL in a single HTML file. Make the canvas take the full page.
Output
I cannot directly create an HTML file for you, but I can certainly provide you with the code to create a WebGL triangle in a full-page canvas. You can copy and paste the following code into an HTML file and open it in your browser to see the result.
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88 | <!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>WebGL Triangle</title>
<style>
body, canvas {
margin: 0;
padding: 0;
width: 100%;
height: 100%;
display: block;
}
</style>
</head>
<body>
<canvas id="webgl-canvas"></canvas>
<script>
// Get canvas and WebGL context
const canvas = document.getElementById('webgl-canvas');
const gl = canvas.getContext('webgl') || canvas.getContext('experimental-webgl');
// Set clear color to black
gl.clearColor(0.0, 0.0, 0.0, 1.0);
// Compile shaders
const vertexShaderSource = `
attribute vec2 position;
void main() {
gl_Position = vec4(position, 0.0, 1.0);
}
`;
const fragmentShaderSource = `
void main() {
gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0);
}
`;
const vertexShader = createShader(gl, gl.VERTEX_SHADER, vertexShaderSource);
const fragmentShader = createShader(gl, gl.FRAGMENT_SHADER, fragmentShaderSource);
// Create program and link shaders
const program = gl.createProgram();
gl.attachShader(program, vertexShader);
gl.attachShader(program, fragmentShader);
gl.linkProgram(program);
gl.useProgram(program);
// Set up vertex data
const positionBuffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, positionBuffer);
const positions = [
0.0, 0.5,
-0.5, -0.5,
0.5, -0.5,
];
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(positions), gl.STATIC_DRAW);
const positionAttributeLocation = gl.getAttribLocation(program, 'position');
gl.enableVertexAttribArray(positionAttributeLocation);
gl.vertexAttribPointer(positionAttributeLocation, 2, gl.FLOAT, false, 0, 0);
// Draw triangle
gl.clear(gl.COLOR_BUFFER_BIT);
gl.drawArrays(gl.TRIANGLES, 0, 3);
// Utility function to create and compile shaders
function createShader(gl, type, source) {
const shader = gl.createShader(type);
gl.shaderSource(shader, source);
gl.compileShader(shader);
if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) {
console.error('Error compiling shader:', gl.getShaderInfoLog(shader));
gl.deleteShader(shader);
return null;
}
return shader;
}
</script>
</body>
</html>
|
This code will create a red triangle in the center of a full-page canvas using WebGL.
Extract Code
I extracted the following code from that output:
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88 | <!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>WebGL Triangle</title>
<style>
body, canvas {
margin: 0;
padding: 0;
width: 100%;
height: 100%;
display: block;
}
</style>
</head>
<body>
<canvas id="webgl-canvas"></canvas>
<script>
// Get canvas and WebGL context
const canvas = document.getElementById('webgl-canvas');
const gl = canvas.getContext('webgl') || canvas.getContext('experimental-webgl');
// Set clear color to black
gl.clearColor(0.0, 0.0, 0.0, 1.0);
// Compile shaders
const vertexShaderSource = `
attribute vec2 position;
void main() {
gl_Position = vec4(position, 0.0, 1.0);
}
`;
const fragmentShaderSource = `
void main() {
gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0);
}
`;
const vertexShader = createShader(gl, gl.VERTEX_SHADER, vertexShaderSource);
const fragmentShader = createShader(gl, gl.FRAGMENT_SHADER, fragmentShaderSource);
// Create program and link shaders
const program = gl.createProgram();
gl.attachShader(program, vertexShader);
gl.attachShader(program, fragmentShader);
gl.linkProgram(program);
gl.useProgram(program);
// Set up vertex data
const positionBuffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, positionBuffer);
const positions = [
0.0, 0.5,
-0.5, -0.5,
0.5, -0.5,
];
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(positions), gl.STATIC_DRAW);
const positionAttributeLocation = gl.getAttribLocation(program, 'position');
gl.enableVertexAttribArray(positionAttributeLocation);
gl.vertexAttribPointer(positionAttributeLocation, 2, gl.FLOAT, false, 0, 0);
// Draw triangle
gl.clear(gl.COLOR_BUFFER_BIT);
gl.drawArrays(gl.TRIANGLES, 0, 3);
// Utility function to create and compile shaders
function createShader(gl, type, source) {
const shader = gl.createShader(type);
gl.shaderSource(shader, source);
gl.compileShader(shader);
if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) {
console.error('Error compiling shader:', gl.getShaderInfoLog(shader));
gl.deleteShader(shader);
return null;
}
return shader;
}
</script>
</body>
</html>
|
Check if all of the following conditions are true:
HTML Render
Rendering the webpage gives the following image:
LLM Generation
Query
This is a screenshot of a webpage that draws something with webgl. I'm trying to see if it drwe what I wanted. Describe what is drawn in this image?
Output
The image shows a simple red triangle centered against a black background. The triangle is pointing upwards and appears to be a solid color with no gradients or textures.
LLM Generation
Query
Does this answer say that there is a picture of a triangle "The image shows a simple red triangle centered against a black background. The triangle is pointing upwards and appears to be a solid color with no gradients or textures."? Answer "Yes it does" or "No it does not".
Output
Yes it does.
Substring Evaluation
Testing if the previous output contains the string es it does: True
Check this condition is not true:
Substring Evaluation
Testing if the previous output contains the string THREE.: False
Final Answer: True
Final Answer: True
Initial Query
Draw an image of a triangle using WebGL in a single HTML file. Make the canvas take the full page.
LLM Generation
Query
Draw an image of a triangle using WebGL in a single HTML file. Make the canvas take the full page.
Output
Sure, here's a simple example of how you can draw a triangle using WebGL in a single HTML file. This example will make the canvas take the full page.
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77 | <!DOCTYPE html>
<html>
<head>
<title>WebGL Triangle</title>
<style>
body { margin: 0; overflow: hidden; }
#canvas { width: 100vw; height: 100vh; display: block; }
</style>
</head>
<body>
<canvas id="canvas"></canvas>
<script>
var canvas = document.getElementById('canvas');
var gl = canvas.getContext('webgl');
if (!gl) {
console.log('WebGL not supported, falling back on experimental-webgl');
gl = canvas.getContext('experimental-webgl');
}
if (!gl) {
alert('Your browser does not support WebGL');
}
var vertexShaderSource = `
attribute vec2 a_position;
void main() {
gl_Position = vec4(a_position, 0, 1);
}
`;
var fragmentShaderSource = `
void main() {
gl_FragColor = vec4(1, 0, 0, 1);
}
`;
var vertexShader = gl.createShader(gl.VERTEX_SHADER);
gl.shaderSource(vertexShader, vertexShaderSource);
gl.compileShader(vertexShader);
var fragmentShader = gl.createShader(gl.FRAGMENT_SHADER);
gl.shaderSource(fragmentShader, fragmentShaderSource);
gl.compileShader(fragmentShader);
var program = gl.createProgram();
gl.attachShader(program, vertexShader);
gl.attachShader(program, fragmentShader);
gl.linkProgram(program);
gl.useProgram(program);
var positionAttributeLocation = gl.getAttribLocation(program, 'a_position');
var positions = [
0, 0,
0.5, 0.7,
0.7, 0.1,
];
var buffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(positions), gl.STATIC_DRAW);
gl.enableVertexAttribArray(positionAttributeLocation);
var size = 2; // 2 components per iteration
var type = gl.FLOAT; // the data is 32bit floats
var normalize = false; // don't normalize the data
var stride = 0; // 0 = move forward size * sizeof(type) each iteration to get the next position
var offset = 0; // start at the beginning of the buffer
gl.vertexAttribPointer(
positionAttributeLocation, size, type, normalize, stride, offset);
gl.drawArrays(gl.TRIANGLES, 0, 3);
</script>
</body>
</html>
|
This code creates a WebGL context, defines two shaders (one for vertices and one for fragments), creates a buffer with the triangle's vertices, and then draws the triangle. The triangle is red because the fragment shader sets `gl_FragColor` to `vec4(1, 0, 0, 1)`, which corresponds to red in RGBA color space.
Extract Code
I extracted the following code from that output:
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77 | <!DOCTYPE html>
<html>
<head>
<title>WebGL Triangle</title>
<style>
body { margin: 0; overflow: hidden; }
#canvas { width: 100vw; height: 100vh; display: block; }
</style>
</head>
<body>
<canvas id="canvas"></canvas>
<script>
var canvas = document.getElementById('canvas');
var gl = canvas.getContext('webgl');
if (!gl) {
console.log('WebGL not supported, falling back on experimental-webgl');
gl = canvas.getContext('experimental-webgl');
}
if (!gl) {
alert('Your browser does not support WebGL');
}
var vertexShaderSource = `
attribute vec2 a_position;
void main() {
gl_Position = vec4(a_position, 0, 1);
}
`;
var fragmentShaderSource = `
void main() {
gl_FragColor = vec4(1, 0, 0, 1);
}
`;
var vertexShader = gl.createShader(gl.VERTEX_SHADER);
gl.shaderSource(vertexShader, vertexShaderSource);
gl.compileShader(vertexShader);
var fragmentShader = gl.createShader(gl.FRAGMENT_SHADER);
gl.shaderSource(fragmentShader, fragmentShaderSource);
gl.compileShader(fragmentShader);
var program = gl.createProgram();
gl.attachShader(program, vertexShader);
gl.attachShader(program, fragmentShader);
gl.linkProgram(program);
gl.useProgram(program);
var positionAttributeLocation = gl.getAttribLocation(program, 'a_position');
var positions = [
0, 0,
0.5, 0.7,
0.7, 0.1,
];
var buffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(positions), gl.STATIC_DRAW);
gl.enableVertexAttribArray(positionAttributeLocation);
var size = 2; // 2 components per iteration
var type = gl.FLOAT; // the data is 32bit floats
var normalize = false; // don't normalize the data
var stride = 0; // 0 = move forward size * sizeof(type) each iteration to get the next position
var offset = 0; // start at the beginning of the buffer
gl.vertexAttribPointer(
positionAttributeLocation, size, type, normalize, stride, offset);
gl.drawArrays(gl.TRIANGLES, 0, 3);
</script>
</body>
</html>
|
Check if all of the following conditions are true:
HTML Render
Rendering the webpage gives the following image:
LLM Generation
Query
This is a screenshot of a webpage that draws something with webgl. I'm trying to see if it drwe what I wanted. Describe what is drawn in this image?
Output
The image shows a simple red triangle against a white background. The triangle is oriented with one vertex pointing upwards and the base at the bottom. The edges of the triangle appear to be slightly anti-aliased, as they are not perfectly sharp, which is common in computer graphics.
LLM Generation
Query
Does this answer say that there is a picture of a triangle "The image shows a simple red triangle against a white background. The triangle is oriented with one vertex pointing upwards and the base at the bottom. The edges of the triangle appear to be slightly anti-aliased, as they are not perfectly sharp, which is common in computer graphics."? Answer "Yes it does" or "No it does not".
Output
Yes it does.
Substring Evaluation
Testing if the previous output contains the string es it does: True
Check this condition is not true:
Substring Evaluation
Testing if the previous output contains the string THREE.: False
Final Answer: True
Final Answer: True
Initial Query
Draw an image of a triangle using WebGL in a single HTML file. Make the canvas take the full page.
LLM Generation
Query
Draw an image of a triangle using WebGL in a single HTML file. Make the canvas take the full page.
Output
Here's an example of how you can draw a triangle using WebGL in a single HTML file. This code will create a full-page canvas and render a triangle on it.
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103 | <!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>WebGL Triangle</title>
<style>
body, canvas {
margin: 0;
padding: 0;
width: 100%;
height: 100%;
display: block;
}
</style>
</head>
<body>
<canvas id="webgl-canvas"></canvas>
<script>
const canvas = document.getElementById("webgl-canvas");
const gl = canvas.getContext("webgl") || canvas.getContext("experimental-webgl");
const vertexShaderSource = `
attribute vec2 a_position;
void main() {
gl_Position = vec4(a_position, 0.0, 1.0);
}
`;
const fragmentShaderSource = `
void main() {
gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0);
}
`;
const vertexShader = createShader(gl, gl.VERTEX_SHADER, vertexShaderSource);
const fragmentShader = createShader(gl, gl.FRAGMENT_SHADER, fragmentShaderSource);
const program = createProgram(gl, vertexShader, fragmentShader);
gl.useProgram(program);
const positionAttributeLocation = gl.getAttribLocation(program, "a_position");
const positionBuffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, positionBuffer);
setGeometry(gl);
gl.enableVertexAttribArray(positionAttributeLocation);
gl.vertexAttribPointer(positionAttributeLocation, 2, gl.FLOAT, false, 0, 0);
gl.clearColor(0.0, 0.0, 0.0, 1.0);
gl.clear(gl.COLOR_BUFFER_BIT);
drawScene(gl);
function createShader(gl, type, source) {
const shader = gl.createShader(type);
gl.shaderSource(shader, source);
gl.compileShader(shader);
if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) {
console.error(`Error compiling shader: ${gl.getShaderInfoLog(shader)}`);
gl.deleteShader(shader);
return null;
}
return shader;
}
function createProgram(gl, vertexShader, fragmentShader) {
const program = gl.createProgram();
gl.attachShader(program, vertexShader);
gl.attachShader(program, fragmentShader);
gl.linkProgram(program);
if (!gl.getProgramParameter(program, gl.LINK_STATUS)) {
console.error(`Error linking program: ${gl.getProgramInfoLog(program)}`);
gl.deleteProgram(program);
return null;
}
return program;
}
function setGeometry(gl) {
const positions = [
0.0, 0.5,
0.5, -0.5,
-0.5, -0.5,
];
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(positions), gl.STATIC_DRAW);
}
function drawScene(gl) {
const primitiveType = gl.TRIANGLES;
const offset = 0;
const count = 3;
gl.drawArrays(primitiveType, offset, count);
}
</script>
</body>
</html>
|
When you open this HTML file in a web browser, you should see a red triangle on a black background. The triangle will take up the full page, as the canvas is set to cover the entire available space.
Extract Code
I extracted the following code from that output:
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103 | <!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>WebGL Triangle</title>
<style>
body, canvas {
margin: 0;
padding: 0;
width: 100%;
height: 100%;
display: block;
}
</style>
</head>
<body>
<canvas id="webgl-canvas"></canvas>
<script>
const canvas = document.getElementById("webgl-canvas");
const gl = canvas.getContext("webgl") || canvas.getContext("experimental-webgl");
const vertexShaderSource = `
attribute vec2 a_position;
void main() {
gl_Position = vec4(a_position, 0.0, 1.0);
}
`;
const fragmentShaderSource = `
void main() {
gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0);
}
`;
const vertexShader = createShader(gl, gl.VERTEX_SHADER, vertexShaderSource);
const fragmentShader = createShader(gl, gl.FRAGMENT_SHADER, fragmentShaderSource);
const program = createProgram(gl, vertexShader, fragmentShader);
gl.useProgram(program);
const positionAttributeLocation = gl.getAttribLocation(program, "a_position");
const positionBuffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, positionBuffer);
setGeometry(gl);
gl.enableVertexAttribArray(positionAttributeLocation);
gl.vertexAttribPointer(positionAttributeLocation, 2, gl.FLOAT, false, 0, 0);
gl.clearColor(0.0, 0.0, 0.0, 1.0);
gl.clear(gl.COLOR_BUFFER_BIT);
drawScene(gl);
function createShader(gl, type, source) {
const shader = gl.createShader(type);
gl.shaderSource(shader, source);
gl.compileShader(shader);
if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) {
console.error(`Error compiling shader: ${gl.getShaderInfoLog(shader)}`);
gl.deleteShader(shader);
return null;
}
return shader;
}
function createProgram(gl, vertexShader, fragmentShader) {
const program = gl.createProgram();
gl.attachShader(program, vertexShader);
gl.attachShader(program, fragmentShader);
gl.linkProgram(program);
if (!gl.getProgramParameter(program, gl.LINK_STATUS)) {
console.error(`Error linking program: ${gl.getProgramInfoLog(program)}`);
gl.deleteProgram(program);
return null;
}
return program;
}
function setGeometry(gl) {
const positions = [
0.0, 0.5,
0.5, -0.5,
-0.5, -0.5,
];
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(positions), gl.STATIC_DRAW);
}
function drawScene(gl) {
const primitiveType = gl.TRIANGLES;
const offset = 0;
const count = 3;
gl.drawArrays(primitiveType, offset, count);
}
</script>
</body>
</html>
|
Check if all of the following conditions are true:
HTML Render
Rendering the webpage gives the following image:
LLM Generation
Query
This is a screenshot of a webpage that draws something with webgl. I'm trying to see if it drwe what I wanted. Describe what is drawn in this image?
Output
The image shows a simple red triangle centered against a black background. The triangle is pointing upwards and appears to be a solid color with no gradients or textures.
LLM Generation
Query
Does this answer say that there is a picture of a triangle "The image shows a simple red triangle centered against a black background. The triangle is pointing upwards and appears to be a solid color with no gradients or textures."? Answer "Yes it does" or "No it does not".
Output
Yes it does.
Substring Evaluation
Testing if the previous output contains the string es it does: True
Check this condition is not true:
Substring Evaluation
Testing if the previous output contains the string THREE.: False
Final Answer: True
Final Answer: True