From f80fa3e137df0f78c501e565851d84e86671b297 Mon Sep 17 00:00:00 2001
From: hu-xd <74464946+hu-xd@users.noreply.github.com>
Date: Fri, 26 Apr 2024 12:24:55 +0000
Subject: [PATCH] Skip empty animations

animations with no channels are invalid in GLTF
---
 src/gltf/Raw2Gltf.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/gltf/Raw2Gltf.cpp b/src/gltf/Raw2Gltf.cpp
index 30ff5a3..f6da104 100644
--- a/src/gltf/Raw2Gltf.cpp
+++ b/src/gltf/Raw2Gltf.cpp
@@ -155,6 +155,14 @@ ModelData* Raw2Gltf(
 
     for (int i = 0; i < raw.GetAnimationCount(); i++) {
       const RawAnimation& animation = raw.GetAnimation(i);
+      
+      if (animation.channels.empty()) {
+        fmt::printf(
+          "Animation '%s' has no channels, skipped\n",
+          animation.name.c_str()
+        );
+        continue;
+      }
 
       auto accessor = gltf->AddAccessorAndView(buffer, GLT_FLOAT, animation.times);
       accessor->min = {*std::min_element(std::begin(animation.times), std::end(animation.times))};