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Add clay pieces, masking, and topology editing to sculpt

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Add pastel presets, piece selection and colors, mask brushes, subdivision and conservative decimation with bounded worker operations and mixed undo history.

Amp-Thread-ID: https://ampcode.com/threads/T-01a0b4b4-202c-73f1-984d-9a55c88f9c83
Co-authored-by: Heaust Azure <heaust.azure@gmail.com>
This commit is contained in:
Amp
2026-10-01 07:55:48 +00:00
co-authored by heaust
parent d930d8172f
commit d279ec4123
21 changed files with 2564 additions and 131 deletions
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server/web/assets/sculpt/input.js
+28 -4
View File
@@ -101,12 +101,20 @@ export class Input {
}
pick(sample, rect) {
const b = cameraBasis(this.host.camera.yaw, this.host.camera.pitch);
return this.host
const hit = this.host
.engine()
.bvh.raycast(
add(this.world(sample, rect), mul(b.forward, 24)),
mul(b.forward, -1),
);
if (!hit) return null;
const engine = this.host.engine();
const piece = engine.mesh.pieces?.find((p) => p.id === engine.activeId);
return piece &&
hit.face * 3 >= piece.indexStart &&
hit.face * 3 < piece.indexStart + piece.indexCount
? hit
: null;
}
down(e) {
if (this.rejectsTouch(e)) return;
@@ -176,7 +184,10 @@ export class Input {
canvas,
};
if (this.active.mode === "sculpt") {
const settings = { ...this.host.settings };
const settings = {
...this.host.settings,
activeId: this.host.engine().activeId,
};
if (e.shiftKey) settings.brush = "smooth";
if (e.altKey) settings.invert = !settings.invert;
const engine = this.host.engine(),
@@ -193,6 +204,8 @@ export class Input {
.begin(
{
positions: engine.mesh.positions.slice(),
masks: engine.mesh.masks.slice(),
activeId: engine.activeId,
settings,
camera: structuredClone(this.host.camera),
rect: {
@@ -208,7 +221,17 @@ export class Input {
this.checkViewport();
if (this.transaction !== transaction || transaction.canceling)
return;
const { vertices, rows, touched } = packet;
const { vertices, masks, rows, touched } = packet;
if (packet.type === "mask") {
rows.forEach((v, i) => {
engine.mesh.masks[v] = masks[i];
engine.dirty.add(v);
});
for (const v of touched) engine.stroke.touched.add(v);
engine.revision++;
this.host.invalidate();
return;
}
for (let row = 0; row < rows.length; row++) {
const v = rows[row],
i = row * 8,
@@ -357,7 +380,8 @@ export class Input {
this.host.invalidate();
} else {
// Repair main's face-normal cache and picking BVH only at the boundary.
engine.changed([...engine.stroke.touched]);
if (engine.stroke.settings.brush !== "mask")
engine.changed([...engine.stroke.touched]);
engine.end();
this.host.committed();
}