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refactor

This commit is contained in:
syuilo 2025-08-25 13:25:05 +09:00
parent 27df7f643e
commit 3741fa4b49
1 changed files with 9 additions and 7 deletions
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16
packages/frontend/src/components/MkAnimBg.vue
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@ -44,7 +44,7 @@ function initShaderProgram(gl: WebGLRenderingContext, vsSource: string, fsSource
const fragmentShader = loadShader(gl, gl.FRAGMENT_SHADER, fsSource); const fragmentShader = loadShader(gl, gl.FRAGMENT_SHADER, fsSource);
const shaderProgram = gl.createProgram(); const shaderProgram = gl.createProgram();
if (shaderProgram == null || vertexShader == null || fragmentShader == null) return null; if (vertexShader == null || fragmentShader == null) return null;
gl.attachShader(shaderProgram, vertexShader); gl.attachShader(shaderProgram, vertexShader);
gl.attachShader(shaderProgram, fragmentShader); gl.attachShader(shaderProgram, fragmentShader);
@ -71,8 +71,10 @@ onMounted(() => {
canvas.width = width; canvas.width = width;
canvas.height = height; canvas.height = height;
const gl = canvas.getContext('webgl', { premultipliedAlpha: true }); const maybeGl = canvas.getContext('webgl', { premultipliedAlpha: true });
if (gl == null) return; if (maybeGl == null) return;
const gl = maybeGl;
gl.clearColor(0.0, 0.0, 0.0, 0.0); gl.clearColor(0.0, 0.0, 0.0, 0.0);
gl.clear(gl.COLOR_BUFFER_BIT); gl.clear(gl.COLOR_BUFFER_BIT);
@ -229,8 +231,8 @@ onMounted(() => {
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(vertices), gl.DYNAMIC_DRAW); gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(vertices), gl.DYNAMIC_DRAW);
if (isChromatic()) { if (isChromatic()) {
gl!.uniform1f(u_time, 0); gl.uniform1f(u_time, 0);
gl!.drawArrays(gl!.TRIANGLE_STRIP, 0, 4); gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4);
} else { } else {
function render(timeStamp: number) { function render(timeStamp: number) {
let sizeChanged = false; let sizeChanged = false;
@ -249,8 +251,8 @@ onMounted(() => {
gl.viewport(0, 0, width, height); gl.viewport(0, 0, width, height);
} }
gl!.uniform1f(u_time, timeStamp); gl.uniform1f(u_time, timeStamp);
gl!.drawArrays(gl!.TRIANGLE_STRIP, 0, 4); gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4);
handle = window.requestAnimationFrame(render); handle = window.requestAnimationFrame(render);
} }