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支持无背景、颜色图片混合背景

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This commit is contained in:
ymk
2025-08-15 16:32:23 +08:00
parent 337c582f9a
commit dc089567dc
4 changed files with 94 additions and 55 deletions
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17
src/components/common/ThreeTools.ts
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@@ -213,19 +213,22 @@ function setGradient(
if (dir == "l2r") {
const maxX = geo.boundingBox!.max.x;
const minX = geo.boundingBox!.min.x;
const color = new THREE.Color();
for (let i = 0; i < position.count; i++) {
const x = position.getX(i);
const t = (x - minX) / (maxX - minX); // 归一化
const color = new THREE.Color().lerpColors(startColor, endColor, t);
color.lerpColors(startColor, endColor, t);
colorss.push(color.r, color.g, color.b);
}
} else if (dir == "t2b") {
const maxY = geo.boundingBox!.max.y;
const minY = geo.boundingBox!.min.y;
const color = new THREE.Color();
for (let i = 0; i < position.count; i++) {
const y = position.getY(i);
const t = (y - minY) / (maxY - minY); // 归一化
const color = new THREE.Color().lerpColors(startColor, endColor, 1.0 - t);
color.lerpColors(startColor, endColor, 1.0 - t);
colorss.push(color.r, color.g, color.b);
}
}
@@ -292,11 +295,11 @@ async function loadFont(textProps: TextProp) {
}
export function updateBackground(bg: BackgroundProp) {
if (bg.type === "color") {
scene.background = new THREE.Color(bg.color);
} else {
scene.background = null;
}
// if (bg.color) {
// scene.background = new THREE.Color(bg.color);
// } else {
// scene.background = null;
// }
}
// function createGradientTexture(colors: string[]) {