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<head>
<style>
html, body {
margin: 0;
padding: 0;
width: 100%;
height: 100%;
display: block;
}
#canvas {
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
text-align: center;
position: fixed;
position: relative;
}
.error {
font-family: Consolas;
font-size: 1.2em;
color: black;
box-sizing: border-box;
background-color: lightcoral;
border-radius: 2px;
border-color: lightblue;
border-width: thin;
border-style: solid;
line-height: 1.4em;
cursor:pointer;
}
.error:hover {
color: black;
background-color: brown;
border-color: blue;
}
#message {
font-family: Consolas;
font-size: 1.2em;
color: #ccc;
background-color: black;
font-weight: bold;
z-index: 2;
position: absolute;
}
#dat_gui_container {
position: absolute;
left: 0px; /* position inside relatively positioned parent */
top: 0px;
z-index: 3; /* adjust as needed */
}
/* Pause Button Style */
.rec_base {
position: absolute;
border: none;
right: 0px;
padding: 26px;
text-align: center;
text-decoration: none;
font-size: 26px;
border-radius: 8px;
margin: 8px;
transform: translateX(0%);
z-index: 1;
}
.rec_base:nth-of-type(2) {
top: 60px;
}
/* Screenshot Button Style */
/* Record Button Style */
/* Reload Button Style */
</style>
</head>
<body>
<div id="message"></div>
<div id="dat_gui_container"></div>
<div id="container">
<!-- Pause Element -->
</div>
<!-- Screenshot Element -->
<!-- Record Element -->
<!-- Reload Element -->
</body>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/110/three.min.js"></script>
<!-- Stats.js -->
<script src='https://cdnjs.cloudflare.com/ajax/libs/stats.js/r16/Stats.min.js' onload="
let stats = new Stats();
compileTimePanel = stats.addPanel(new Stats.Panel('CT MS', '#ff8', '#221'));
stats.showPanel(1);
document.body.appendChild(stats.domElement);
requestAnimationFrame(function loop() {
stats.update();
requestAnimationFrame(loop);
});
"></script>
<!-- dat.gui -->
<canvas id="canvas"></canvas>
<!-- Shaders -->
<script id='/Users/weekit/Desktop/Feat/flutter-assets-gen/README.md' type='x-shader/x-fragment'>
uniform vec3 iResolution;
uniform float iTime;
uniform float iTimeDelta;
uniform int iFrame;
uniform vec4 iDate;
uniform vec3 iChannelResolution[10];
uniform vec4 iMouse;
uniform vec4 iMouseButton;
uniform mat4 iViewMatrix;
uniform sampler2D iChannel0;
uniform sampler2D iChannel1;
uniform sampler2D iChannel2;
uniform sampler2D iChannel3;
uniform sampler2D iChannel4;
uniform sampler2D iChannel5;
uniform sampler2D iChannel6;
uniform sampler2D iChannel7;
uniform sampler2D iChannel8;
uniform sampler2D iChannel9;
uniform sampler2D iKeyboard;
uniform float iSampleRate;
#define iGlobalTime iTime
#define iGlobalFrame iFrame
#define SHADER_TOY
## 命令 (Provide commands)
- F1 > Search flutter assets
- `Flutter Assets: Watch`
- `Flutter Assets: Stop Watch`
- `Flutter Assets: Generate`
## 如何使用 (How to use)
- step 1. 在项目pubspec.yaml下添加 (Add under project pubspec.yaml)：
```yaml
flutter_assets:
assets_path: assets/
output_path: lib/constants/
filename: assets.dart
```
- **field_prefix为可选字段，如果想去掉assets前缀，则提供一个空，默认为assets** (**field_prefix is an optional field, if you want to remove the assets prefix, provide an empty value, the default is assets**)
```yaml
flutter_assets:
assets_path: assets/
output_path: lib/constants/
filename: assets.dart
field_prefix:
```
- **修改prefix** (**Modify prefix**)
```yaml
flutter_assets:
assets_path: assets/
output_path: lib/constants/
filename: assets.dart
field_prefix: resource
```
- step 2. 生成文件内容 (Generate file content)
```dart
class Assets {
Assets._();
/// Assets for loginLogo
/// assets/images/login/logo.png
static const String assetsImagesLoginLogo = "assets/images/login/logo.png";
/// Assets for tabHome
/// assets/images/tab/home.png
static const String assetsImagesTabHome = "assets/images/tab/home.png";
}
```
- step 3. 引入 (introduce)
```dart
import 'constants/assets.dart';
/// example1:
Image.asset(Assets.assetsImagesLoginLogo, height: 30, width: 30),
/// example2:
Image(image: AssetImage(Assets.assetsImagesTabHome,), height: 30, width: 30),
```
## 修改类名 (Modify class name)
```yaml
flutter_assets:
assets_path: assets/
output_path: lib/constants/
filename: assets.dart
field_prefix:
classname: R
```
生成内容 (Generate content)
```dart
class R {
R._();
/// Assets for loginLogo
/// assets/images/login/logo.png
static const String assetsImagesLoginLogo = "assets/images/login/logo.png";
/// Assets for tabHome
/// assets/images/tab/home.png
static const String assetsImagesTabHome = "assets/images/tab/home.png";
}
```
</script>
<!-- FlyControls -->
<script type="text/javascript">
let vscode = undefined;
if (typeof acquireVsCodeApi === 'function') {
vscode = acquireVsCodeApi();
}
var compileTimePanel;
let revealError = function(line, file) {
if (vscode) {
vscode.postMessage({
command: 'showGlslsError',
line: line,
file: file
});
}
};
let currentShader = {};
// Error Callback
console.error = function () {
if('7' in arguments) {
let errorRegex = /ERROR: \d+:(\d+):\W(.*)\n/g;
let rawErrors = arguments[7];
let match;
let diagnostics = [];
let message = '';
while(match = errorRegex.exec(rawErrors)) {
let lineNumber = Number(match[1]) - currentShader.LineOffset;
let error = match[2];
diagnostics.push({
line: lineNumber,
message: error
});
let lineHighlight = `<a class='error' unselectable onclick='revealError(${lineNumber}, "${currentShader.File}")'>Line ${lineNumber}</a>`;
message += `<li>${lineHighlight}: ${error}</li>`;
}
console.log(message);
let diagnosticBatch = {
filename: currentShader.File,
diagnostics: diagnostics
};
if (vscode !== undefined) {
vscode.postMessage({
command: 'showGlslDiagnostic',
type: 'error',
diagnosticBatch: diagnosticBatch
});
}
$('#message').append(`<h3>Shader failed to compile - ${currentShader.Name} </h3>`);
$('#message').append('<ul>');
$('#message').append(message);
$('#message').append('</ul>');
}
};
// Development feature: Output warnings from third-party libraries
// console.warn = function (message) {
// $("#message").append(message + '<br>');
// };
let clock = new THREE.Clock();
let pausedTime = 0.0;
let deltaTime = 0.0;
let startingTime = 0;
let time = startingTime;
let date = new THREE.Vector4();
let updateDate = function() {
let today = new Date();
date.x = today.getFullYear();
date.y = today.getMonth();
date.z = today.getDate();
date.w = today.getHours() * 60 * 60
+ today.getMinutes() * 60
+ today.getSeconds()
+ today.getMilliseconds() * 0.001;
};
updateDate();
let paused = false;
let forceRenderOneFrame = paused;
let pauseButton = document.getElementById('pause-button');
if (pauseButton) {
pauseButton.checked = paused;
pauseButton.onclick = function(){
paused = pauseButton.checked;
if (!paused) {
// Audio Resume
pausedTime += clock.getDelta();
}
else {
// Audio Pause
}
if (vscode !== undefined) {
vscode.postMessage({
command: 'setPause',
paused: paused
});
}
};
}
{
let screenshotButton = document.getElementById("screenshot");
if (screenshotButton) {
screenshotButton.addEventListener('click', saveScreenshot);
}
}
{
let recordButton = document.getElementById("record");
if (recordButton) {
recordButton.addEventListener('click', recordAction);
}
}
{
let reloadButton = document.getElementById("reload");
if (reloadButton) {
reloadButton.addEventListener('click', reloadWebview);
}
}
window.addEventListener('message', event => {
const message = event.data; // The JSON data our extension sent
switch (message.command) {
case 'pause':
if (pauseButton) {
pauseButton.checked = !pauseButton.checked;
}
paused = !paused;
if (!paused) {
// Audio Resume
pausedTime += clock.getDelta();
}
else {
// Audio Pause
}
if (vscode !== undefined) {
vscode.postMessage({
command: 'setPause',
paused: paused
});
}
break;
case 'screenshot':
saveScreenshot();
break;
}
});
let canvas = document.getElementById('canvas');
let gl = canvas.getContext('webgl2');
let isWebGL2 = gl != null;
if (gl == null) gl = canvas.getContext('webgl');
let supportsFloatFramebuffer = (gl.getExtension('EXT_color_buffer_float') != null) || (gl.getExtension('WEBGL_color_buffer_float') != null);
let supportsHalfFloatFramebuffer = (gl.getExtension('EXT_color_buffer_half_float') != null);
let framebufferType = THREE.UnsignedByteType;
if (supportsFloatFramebuffer) framebufferType = THREE.FloatType;
else if (supportsHalfFloatFramebuffer) framebufferType = THREE.HalfFloatType;
let renderer = new THREE.WebGLRenderer({ canvas: canvas, antialias: true, context: gl, preserveDrawingBuffer: true });
let resolution = forceAspectRatio(window.innerWidth, window.innerHeight);
let mouse = new THREE.Vector4(-1, -1, -1, -1);
let mouseButton = new THREE.Vector4(0, 0, 0, 0);
let normalizedMouse = new THREE.Vector2(0, 0);
let frameCounter = 0;
let recorder = null;
// Audio Init
const audioContext = {
sampleRate: 0
};
// Audio Resume
let buffers = [];
// Buffers
buffers.push({
Name: '/Users/weekit/Desktop/Feat/flutter-assets-gen/README.md',
File: '/Users/weekit/Desktop/Feat/flutter-assets-gen/README.md',
LineOffset: 134,
Target: null,
ChannelResolution: Array(10).fill(new THREE.Vector3(0,0,0)),
PingPongTarget: null,
PingPongChannel: 0,
Dependents: [],
Shader: new THREE.ShaderMaterial({
fragmentShader: document.getElementById('/Users/weekit/Desktop/Feat/flutter-assets-gen/README.md').textContent,
depthWrite: false,
depthTest: false,
uniforms: {
iResolution: { type: 'v3', value: resolution },
iTime: { type: 'f', value: 0.0 },
iTimeDelta: { type: 'f', value: 0.0 },
iFrame: { type: 'i', value: 0 },
iMouse: { type: 'v4', value: mouse },
iMouseButton: { type: 'v2', value: mouseButton },
iViewMatrix: {type: 'm44', value: new THREE.Matrix4() },
iChannelResolution: { type: 'v3v', value: Array(10).fill(new THREE.Vector3(0,0,0)) },
iDate: { type: 'v4', value: date },
iSampleRate: { type: 'f', value: audioContext.sampleRate },
iChannel0: { type: 't' },
iChannel1: { type: 't' },
iChannel2: { type: 't' },
iChannel3: { type: 't' },
iChannel4: { type: 't' },
iChannel5: { type: 't' },
iChannel6: { type: 't' },
iChannel7: { type: 't' },
iChannel8: { type: 't' },
iChannel9: { type: 't' },
resolution: { type: 'v2', value: resolution },
time: { type: 'f', value: 0.0 },
mouse: { type: 'v2', value: normalizedMouse },
}
})
});
let commonIncludes = [];
// Includes
// WebGL2 inserts more lines into the shader
if (isWebGL2) {
for (let buffer of buffers) {
buffer.LineOffset += 16;
}
}
// Keyboard Init
// Uniforms Init
// Uniforms Update
let texLoader = new THREE.TextureLoader();
// Texture Init
let scene = new THREE.Scene();
let quad = new THREE.Mesh(
new THREE.PlaneGeometry(resolution.x, resolution.y),
null
);
scene.add(quad);
let controlState = new THREE.Camera();
controlState.position.set(0,0,0);
controlState.quaternion.set(0,0,0,1);
scene.add(controlState);
let flyControls = undefined;
if (typeof FlyControls === 'function') {
flyControls = new FlyControls(controlState, renderer.domElement, vscode);
flyControls.movementSpeed = 1;
flyControls.domElement = renderer.domElement;
flyControls.rollSpeed = Math.PI / 24;
flyControls.autoForward = false;
flyControls.dragToLook = true;
}
let camera = new THREE.OrthographicCamera(-resolution.x / 2.0, resolution.x / 2.0, resolution.y / 2.0, -resolution.y / 2.0, 1, 1000);
camera.position.set(0, 0, 10);
// Run every shader once to check for compile errors
let compileTimeStart = performance.now();
let failed=0;
for (let include of commonIncludes) {
currentShader = {
Name: include.Name,
File: include.File,
// add two for version and precision lines
LineOffset: 27 + 2
};
// Test Compile Included Files
// bail if there is an error found in the include script
if(compileFragShader(gl, document.getElementById(include.Name).textContent) == false) {
throw Error(`Failed to compile ${include.Name}`);
}
}
for (let buffer of buffers) {
currentShader = {
Name: buffer.Name,
File: buffer.File,
LineOffset: buffer.LineOffset
};
quad.material = buffer.Shader;
renderer.setRenderTarget(buffer.Target);
renderer.render(scene, camera);
}
currentShader = {};
let compileTimeEnd = performance.now();
let compileTime = compileTimeEnd - compileTimeStart;
if (compileTimePanel !== undefined) {
for (let i = 0; i < 200; i++) {
compileTimePanel.update(compileTime, 200);
}
}
computeSize();
render();
function addLineNumbers( string ) {
let lines = string.split( '\\n' );
for ( let i = 0; i < lines.length; i ++ ) {
lines[ i ] = ( i + 1 ) + ': ' + lines[ i ];
}
return lines.join( '\\n' );
}
function compileFragShader(gl, fsSource) {
const fs = gl.createShader(gl.FRAGMENT_SHADER);
gl.shaderSource(fs, fsSource);
gl.compileShader(fs);
if (!gl.getShaderParameter(fs, gl.COMPILE_STATUS)) {
const fragmentLog = gl.getShaderInfoLog(fs);
console.error( 'THREE.WebGLProgram: shader error: ', gl.getError(), 'gl.COMPILE_STATUS', null, null, null, null, fragmentLog );
return false;
}
return true;
}
function render() {
requestAnimationFrame(render);
if (!forceRenderOneFrame) {
// Pause Whole Render
if (paused) return;
}
forceRenderOneFrame = false;
// Advance Time
deltaTime = clock.getDelta();
time = startingTime + clock.getElapsedTime() - pausedTime;
if (vscode !== undefined) {
vscode.postMessage({
command: 'updateTime',
time: time
});
}
updateDate();
if(flyControls)
{
flyControls.update(0.1);
}
// Audio Update
for (let buffer of buffers) {
buffer.Shader.uniforms['iResolution'].value = resolution;
buffer.Shader.uniforms['iTimeDelta'].value = deltaTime;
buffer.Shader.uniforms['iTime'].value = time;
buffer.Shader.uniforms['iFrame'].value = frameCounter;
buffer.Shader.uniforms['iMouse'].value = mouse;
buffer.Shader.uniforms['iMouseButton'].value = mouseButton;
buffer.Shader.uniforms['iViewMatrix'].value = controlState.matrixWorld;
buffer.Shader.uniforms['resolution'].value = resolution;
buffer.Shader.uniforms['time'].value = time;
buffer.Shader.uniforms['mouse'].value = normalizedMouse;
quad.material = buffer.Shader;
renderer.setRenderTarget(buffer.Target);
renderer.render(scene, camera);
}
// Uniforms Update
// Keyboard Update
if (mouse.w > 0.0) {
mouse.w = -mouse.w;
updateMouse();
}
for (let buffer of buffers) {
if (buffer.PingPongTarget) {
[buffer.PingPongTarget, buffer.Target] = [buffer.Target, buffer.PingPongTarget];
buffer.Shader.uniforms[`iChannel${buffer.PingPongChannel}`].value = buffer.PingPongTarget.texture;
for (let dependent of buffer.Dependents) {
const dependentBuffer = buffers[dependent.Index];
dependentBuffer.Shader.uniforms[`iChannel${dependent.Channel}`].value = buffer.Target.texture;
}
}
}
frameCounter++;
}
function forceAspectRatio(width, height) {
// Forced aspect ratio
let forcedAspects = [0,0];
let forcedAspectRatio = forcedAspects[0] / forcedAspects[1];
let aspectRatio = width / height;
if (forcedAspectRatio <= 0 || !isFinite(forcedAspectRatio)) {
let resolution = new THREE.Vector3(width, height, 1.0);
return resolution;
}
else if (aspectRatio < forcedAspectRatio) {
let resolution = new THREE.Vector3(width, Math.floor(width / forcedAspectRatio), 1);
return resolution;
}
else {
let resolution = new THREE.Vector3(Math.floor(height * forcedAspectRatio), height, 1);
return resolution;
}
}
function computeSize() {
// Compute forced aspect ratio and align canvas
resolution = forceAspectRatio(window.innerWidth, window.innerHeight);
canvas.style.left = `${(window.innerWidth - resolution.x) / 2}px`;
canvas.style.top = `${(window.innerHeight - resolution.y) / 2}px`;
for (let buffer of buffers) {
if (buffer.Target) {
buffer.Target.setSize(resolution.x, resolution.y);
}
if (buffer.PingPongTarget) {
buffer.PingPongTarget.setSize(resolution.x, resolution.y);
}
}
renderer.setSize(resolution.x, resolution.y, false);
// Update Camera and Mesh
quad.geometry = new THREE.PlaneGeometry(resolution.x, resolution.y);
camera.left = -resolution.x / 2.0;
camera.right = resolution.x / 2.0;
camera.top = resolution.y / 2.0;
camera.bottom = -resolution.y / 2.0;
camera.updateProjectionMatrix();
// Reset iFrame on resize for shaders that rely on first-frame setups
frameCounter = 0;
}
function saveScreenshot() {
let doSaveScreenshot = () => {
renderer.domElement.toBlob(function(blob){
let a = document.createElement('a');
let url = URL.createObjectURL(blob);
a.href = url;
a.download = 'shadertoy.png';
a.click();
}, 'image/png', 1.0);
};
let forcedScreenshotResolution = [0,0];
if (forcedScreenshotResolution[0] <= 0 || forcedScreenshotResolution[1] <= 0) {
renderer.render(scene, camera);
doSaveScreenshot();
}
else {
renderer.setSize(forcedScreenshotResolution[0], forcedScreenshotResolution[1], false);
for (let buffer of buffers) {
buffer.Shader.uniforms['iResolution'].value = new THREE.Vector3(forcedScreenshotResolution[0], forcedScreenshotResolution[1], 1);
buffer.Shader.uniforms['resolution'].value = new THREE.Vector3(forcedScreenshotResolution[0], forcedScreenshotResolution[1], 1);
quad.material = buffer.Shader;
renderer.setRenderTarget(buffer.Target);
renderer.render(scene, camera);
}
doSaveScreenshot();
renderer.setSize(resolution.x, resolution.y, false);
}
}
function recordAction() {
let recordButton = document.getElementById("record");
if (recorder == null) {
recordButton.classList.add('recording');
let stream = canvas.captureStream(30);
let recorderOptions = {
mimeType: "video/webm"
};
recorder = new MediaRecorder(stream, recorderOptions);
recorder.start();
recorder.ondataavailable = function(evt) {
let a = document.createElement('a');
let url = URL.createObjectURL(evt.data);
a.href = url;
a.download = 'shadertoy.webm';
a.click();
};
}
else {
recordButton.classList.remove('recording');
recorder.stop();
recorder = null;
}
}
function reloadWebview() {
if (vscode !== undefined) {
vscode.postMessage({ command: 'reloadWebview' });
}
}
function updateMouse() {
if (vscode !== undefined) {
vscode.postMessage({
command: 'updateMouse',
mouse: {
x: mouse.x,
y: mouse.y,
z: mouse.z,
w: mouse.w
},
normalizedMouse: {
x: normalizedMouse.x,
y: normalizedMouse.y
}
});
}
}
let dragging = false;
function updateNormalizedMouseCoordinates(clientX, clientY) {
let rect = canvas.getBoundingClientRect();
let mouseX = clientX - rect.left;
let mouseY = resolution.y - clientY - rect.top;
if (mouseButton.x + mouseButton.y != 0) {
mouse.x = mouseX;
mouse.y = mouseY;
}
normalizedMouse.x = mouseX / resolution.x;
normalizedMouse.y = mouseY / resolution.y;
}
canvas.addEventListener('mousemove', function(evt) {
updateNormalizedMouseCoordinates(evt.clientX, evt.clientY);
updateMouse();
}, false);
canvas.addEventListener('mousedown', function(evt) {
if (evt.button == 0)
mouseButton.x = 1;
if (evt.button == 2)
mouseButton.y = 1;
if (!dragging) {
updateNormalizedMouseCoordinates(evt.clientX, evt.clientY);
mouse.z = mouse.x;
mouse.w = mouse.y;
dragging = true
}
updateMouse();
}, false);
canvas.addEventListener('mouseup', function(evt) {
if (evt.button == 0)
mouseButton.x = 0;
if (evt.button == 2)
mouseButton.y = 0;
dragging = false;
mouse.z = -mouse.z;
mouse.w = -mouse.w;
updateMouse();
}, false);
window.addEventListener('resize', function() {
computeSize();
});
// Keyboard Callbacks
</script>