#1597 Fix for some GLTF transforms not loading properly.

Also incidental fix for unreachable code error.

3 files changed, 42 insertions, 47 deletions

diff --git a/indra/newview/gltf/accessor.cpp b/indra/newview/gltf/accessor.cpp
index 5f4e3ca3a8..9f1cb0c1cd 100644
--- a/indra/newview/gltf/accessor.cpp
+++ b/indra/newview/gltf/accessor.cpp
@@ -124,8 +124,10 @@ void Buffer::erase(Asset& asset, S32 offset, S32 length)
 
 bool Buffer::prep(Asset& asset)
 {
-    // PRECONDITION: mByteLength must not be 0
-    llassert(mByteLength != 0);
+    if (mByteLength == 0)
+    {
+        return false;
+    }
 
     LLUUID id;
     if (mUri.size() == UUID_STR_SIZE && LLUUID::parseUUID(mUri, &id) && id.notNull())
diff --git a/indra/newview/gltf/asset.cpp b/indra/newview/gltf/asset.cpp
index 7870eb28b0..7d379c2528 100644
--- a/indra/newview/gltf/asset.cpp
+++ b/indra/newview/gltf/asset.cpp
@@ -300,8 +300,8 @@ void Node::serialize(object& dst) const
 {
     write(mName, "name", dst);
     write(mMatrix, "matrix", dst, glm::identity<mat4>());
-    write(mRotation, "rotation", dst);
-    write(mTranslation, "translation", dst);
+    write(mRotation, "rotation", dst, glm::identity<quat>());
+    write(mTranslation, "translation", dst, glm::vec3(0.f, 0.f, 0.f));
     write(mScale, "scale", dst, vec3(1.f,1.f,1.f));
     write(mChildren, "children", dst);
     write(mMesh, "mesh", dst, INVALID_INDEX);
@@ -312,7 +312,6 @@ const Node& Node::operator=(const Value& src)
 {
     copy(src, "name", mName);
     mMatrixValid = copy(src, "matrix", mMatrix);
-
     copy(src, "rotation", mRotation);
     copy(src, "translation", mTranslation);
     copy(src, "scale", mScale);
diff --git a/indra/newview/gltf/buffer_util.h b/indra/newview/gltf/buffer_util.h
index 72e69c9599..548d4ec5d6 100644
--- a/indra/newview/gltf/buffer_util.h
+++ b/indra/newview/gltf/buffer_util.h
@@ -610,14 +610,17 @@ namespace LL
                 const boost::json::array& arr = src.as_array();
                 if (arr.size() == 4)
                 {
-                    if (arr[0].is_double() &&
-                        arr[1].is_double() &&
-                        arr[2].is_double() &&
-                        arr[3].is_double())
-                    {
-                        dst = vec4(arr[0].get_double(), arr[1].get_double(), arr[2].get_double(), arr[3].get_double());
-                        return true;
-                    }
+                    vec4 v;
+                    std::error_code ec;
+
+                    v.x = arr[0].to_number<F32>(ec); if (ec) return false;
+                    v.y = arr[1].to_number<F32>(ec); if (ec) return false;
+                    v.z = arr[2].to_number<F32>(ec); if (ec) return false;
+                    v.w = arr[3].to_number<F32>(ec); if (ec) return false;
+
+                    dst = v;
+
+                    return true;
                 }
             }
             return false;
@@ -645,17 +648,13 @@ namespace LL
                 const boost::json::array& arr = src.as_array();
                 if (arr.size() == 4)
                 {
-                    if (arr[0].is_double() &&
-                        arr[1].is_double() &&
-                        arr[2].is_double() &&
-                        arr[3].is_double())
-                    {
-                        dst.x = arr[0].get_double();
-                        dst.y = arr[1].get_double();
-                        dst.z = arr[2].get_double();
-                        dst.w = arr[3].get_double();
-                        return true;
-                    }
+                    std::error_code ec;
+                    dst.x = arr[0].to_number<F32>(ec); if (ec) return false;
+                    dst.y = arr[1].to_number<F32>(ec); if (ec) return false;
+                    dst.z = arr[2].to_number<F32>(ec); if (ec) return false;
+                    dst.w = arr[3].to_number<F32>(ec); if (ec) return false;
+
+                    return true;
                 }
             }
             return false;
@@ -684,12 +683,13 @@ namespace LL
                 const boost::json::array& arr = src.as_array();
                 if (arr.size() == 3)
                 {
-                    if (arr[0].is_double() &&
-                        arr[1].is_double() &&
-                        arr[2].is_double())
-                    {
-                        dst = vec3(arr[0].get_double(), arr[1].get_double(), arr[2].get_double());
-                    }
+                    std::error_code ec;
+                    vec3 t;
+                    t.x = arr[0].to_number<F32>(ec); if (ec) return false;
+                    t.y = arr[1].to_number<F32>(ec); if (ec) return false;
+                    t.z = arr[2].to_number<F32>(ec); if (ec) return false;
+
+                    dst = t;
                     return true;
                 }
             }
@@ -731,12 +731,10 @@ namespace LL
         template<>
         inline bool copy(const Value& src, F32& dst)
         {
-            if (src.is_double())
-            {
-                dst = src.get_double();
-                return true;
-            }
-            return false;
+            std::error_code ec;
+            F32 t = src.to_number<F32>(ec); if (ec) return false;
+            dst = t;
+            return true;
         }
 
         template<>
@@ -770,12 +768,10 @@ namespace LL
         template<>
         inline bool copy(const Value& src, F64& dst)
         {
-            if (src.is_double())
-            {
-                dst = src.get_double();
-                return true;
-            }
-            return false;
+            std::error_code ec;
+            F64 t = src.to_number<F64>(ec); if (ec) return false;
+            dst = t;
+            return true;
         }
 
         template<>
@@ -860,11 +856,9 @@ namespace LL
 
                     for (U32 i = 0; i < arr.size(); ++i)
                     {
-                        if (arr[i].is_double())
-                        {
-                            p[i] = arr[i].get_double();
-                        }
-                        else
+                        std::error_code ec;
+                        p[i] = arr[i].to_number<F32>(ec);
+                        if (ec)
                         {
                             return false;
                         }