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[ts][threejs] Prevent recalculating normals each frame. Close #2952.

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This commit is contained in:
Davide Tantillo 2025-10-20 16:33:56 +02:00
parent 639a76b3fa
commit 2a87e965c2
1 changed files with 10 additions and 7 deletions
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17
spine-ts/spine-threejs/src/MeshBatcher.ts
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@ -27,17 +27,15 @@
* THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
import * as THREE from "three"
import { ThreeJsTexture, ThreeBlendOptions } from "./ThreeJsTexture.js";
import { BlendMode } from "@esotericsoftware/spine-core";
import * as THREE from "three"
import { SkeletonMesh } from "./SkeletonMesh.js";
import { ThreeBlendOptions, ThreeJsTexture } from "./ThreeJsTexture.js";
export type MaterialWithMap = THREE.Material & { map: THREE.Texture | null };
export class MeshBatcher extends THREE.Mesh {
public static MAX_VERTICES = 10920;
// private static VERTEX_SIZE = 9;
private vertexSize = 9;
private vertexBuffer: THREE.InterleavedBuffer;
private vertices: Float32Array;
@ -169,18 +167,23 @@ export class MeshBatcher extends THREE.Mesh {
this.indicesLength += indicesLength;
}
private verticesMaxLength = -1;
end () {
this.vertexBuffer.needsUpdate = this.verticesLength > 0;
this.vertexBuffer.addUpdateRange(0, this.verticesLength);
let geo = (<THREE.BufferGeometry>this.geometry);
const geo = (<THREE.BufferGeometry>this.geometry);
this.closeMaterialGroups();
let index = geo.getIndex();
const index = geo.getIndex();
if (!index) throw new Error("BufferAttribute must not be null.");
index.needsUpdate = this.indicesLength > 0;
index.addUpdateRange(0, this.indicesLength);
geo.drawRange.start = 0;
geo.drawRange.count = this.indicesLength;
geo.computeVertexNormals();
if (this.verticesMaxLength < this.verticesLength) {
this.verticesMaxLength = this.verticesLength;
geo.computeVertexNormals();
}
}
addMaterialGroup (indicesLength: number, materialGroup: number) {