新增3.4版本支持

js/spine-canvas-clipping.js

@@ -152,6 +152,27 @@ function createLegacyRenderer(spine, context) {
 	return base;
 }
 
+// 3.4 predates clipping attachments and computes packed vertices on attachments.
+function create34Renderer(spine, context) {
+	const base = new (rendererConstructor(spine))(context);
+	base.triangleRendering = true;
+	base.premultipliedAlpha = false;
+	base.draw = skeleton => {
+		try {
+			for (const slot of skeleton.drawOrder) {
+				const attachment = slot.getAttachment();
+				if (!(attachment instanceof spine.RegionAttachment) && !(attachment instanceof spine.MeshAttachment)) continue;
+				const vertices = attachment.updateWorldVertices(slot, false);
+				const image = imageForCanvas(imageFromAttachment(attachment), context, base.premultipliedAlpha);
+				if (!image) continue;
+				context.globalAlpha = vertices[5];
+				drawInterleaved(base, image, vertices, attachment instanceof spine.MeshAttachment ? attachment.triangles : QUAD_TRIANGLES);
+			}
+		} finally { context.globalAlpha = 1; }
+	};
+	return base;
+}
+
 function create43Renderer(spine, context) {
 	const Renderer = rendererConstructor(spine);
 	if (!Renderer || !spine.SkeletonRendererCore) throw new Error('Spine 4.3 Canvas 渲染器不完整');
@@ -190,9 +211,12 @@ function create43Renderer(spine, context) {
 }
 
 function createRenderer(spine, context, runtimeDir) {
-	return runtimeDir === '4.3'
+	const renderer = runtimeDir === '3.4' ? create34Renderer(spine, context) : runtimeDir === '4.3'
 		? create43Renderer(spine, context)
 		: createLegacyRenderer(spine, context);
+	// Explicitly disable debug drawing in every supported runtime.
+	renderer.debugRendering = false;
+	return require('./spine-webgl-rasterizer.js').attach(renderer, context);
 }
 
 module.exports = { createRenderer };