From 21bb8df68f3f7345d68e8034be63c4a8ebb0ad59 Mon Sep 17 00:00:00 2001
From: Davide Tantillo <iamdjj@gmail.com>
Date: Mon, 23 Mar 2026 11:34:43 +0100
Subject: [PATCH] [ts][pixi-v8] Prevent crash when slot object parents are not
 visible. See #3044.

---
 spine-ts/spine-pixi-v8/src/Spine.ts     |  7 +++++--
 spine-ts/spine-pixi-v8/src/SpinePipe.ts | 14 ++++++++------
 2 files changed, 13 insertions(+), 8 deletions(-)

diff --git a/spine-ts/spine-pixi-v8/src/Spine.ts b/spine-ts/spine-pixi-v8/src/Spine.ts
index 4be7acde5..88db1a839 100644
--- a/spine-ts/spine-pixi-v8/src/Spine.ts
+++ b/spine-ts/spine-pixi-v8/src/Spine.ts
@@ -802,7 +802,10 @@ export class Spine extends ViewContainer {
 
 		const pose = slot.applied;
 		const followAttachmentValue = slotAttachment.followAttachmentTimeline ? Boolean(pose.attachment) : true;
-		container.visible = this.skeleton.drawOrder.includes(slot) && followAttachmentValue;
+		const slotAlpha = this.skeleton.color.a * pose.color.a;
+
+		container.visible = this.skeleton.drawOrder.includes(slot) && followAttachmentValue
+			&& this.alpha > 0 && slotAlpha > 0;
 
 		if (container.visible) {
 			const applied = slot.bone.applied;
@@ -816,7 +819,7 @@ export class Spine extends ViewContainer {
 			matrix.ty = applied.worldY;
 			container.setFromMatrix(matrix);
 
-			container.alpha = this.skeleton.color.a * pose.color.a;
+			container.alpha = slotAlpha;
 		}
 	}
 
diff --git a/spine-ts/spine-pixi-v8/src/SpinePipe.ts b/spine-ts/spine-pixi-v8/src/SpinePipe.ts
index 31c79da22..fd4fba0a7 100644
--- a/spine-ts/spine-pixi-v8/src/SpinePipe.ts
+++ b/spine-ts/spine-pixi-v8/src/SpinePipe.ts
@@ -90,6 +90,8 @@ export class SpinePipe implements RenderPipe<Spine> {
 			const drawOrder = spine.skeleton.drawOrder;
 			const gpuSpine = this.gpuSpineData[spine.uid];
 
+			if (!gpuSpine) return false;
+
 			for (let i = 0, n = drawOrder.length; i < n; i++) {
 				const slot = drawOrder[i];
 				const attachment = slot.applied.attachment;
@@ -185,12 +187,10 @@ export class SpinePipe implements RenderPipe<Spine> {
 			if (containerAttachment) {
 				const container = containerAttachment.container;
 
-				if (!skipRender) {
-					container.includeInBuild = true;
-					// See https://github.com/pixijs/pixijs/blob/b4c050a791fe65e979e467c9cba2bda0c01a1c35/src/scene/container/utils/collectAllRenderables.ts#L28
-					// biome-ignore lint/style/noNonNullAssertion: it was in pixi code
-					container.collectRenderables(instructionSet, this.renderer, null!);
-				}
+				container.includeInBuild = true;
+				// See https://github.com/pixijs/pixijs/blob/b4c050a791fe65e979e467c9cba2bda0c01a1c35/src/scene/container/utils/collectAllRenderables.ts#L28
+				// biome-ignore lint/style/noNonNullAssertion: it was in pixi code
+				container.collectRenderables(instructionSet, this.renderer, null!);
 
 				container.includeInBuild = false;
 			}
@@ -200,6 +200,8 @@ export class SpinePipe implements RenderPipe<Spine> {
 	updateRenderable (spine: Spine) {
 		const gpuSpine = this.gpuSpineData[spine.uid];
 
+		if (!gpuSpine) return;
+
 		spine._validateAndTransformAttachments();
 
 		spine.spineAttachmentsDirty = false;