From 3f2d4ff9e59c2d105710418c5762f95069c84bff Mon Sep 17 00:00:00 2001
From: Sean Lilley <lilleyse@gmail.com>
Date: Tue, 22 Oct 2024 09:49:43 -0400
Subject: [PATCH 1/2] Additional component types

---
 .../include/CesiumGltf/AccessorSpec.h         |  8 ++++++++
 CesiumGltf/include/CesiumGltf/AccessorView.h  | 20 +++++++++++++++++++
 CesiumGltf/src/Accessor.cpp                   |  5 +++++
 3 files changed, 33 insertions(+)

diff --git a/CesiumGltf/generated/include/CesiumGltf/AccessorSpec.h b/CesiumGltf/generated/include/CesiumGltf/AccessorSpec.h
index 4bad735b4..a5cf56bca 100644
--- a/CesiumGltf/generated/include/CesiumGltf/AccessorSpec.h
+++ b/CesiumGltf/generated/include/CesiumGltf/AccessorSpec.h
@@ -30,9 +30,17 @@ struct CESIUMGLTF_API AccessorSpec : public CesiumGltf::NamedObject {
 
     static constexpr int32_t UNSIGNED_SHORT = 5123;
 
+    static constexpr int32_t INT = 5124;
+
     static constexpr int32_t UNSIGNED_INT = 5125;
 
+    static constexpr int32_t INT64 = 5134;
+
+    static constexpr int32_t UNSIGNED_INT64 = 5135;
+
     static constexpr int32_t FLOAT = 5126;
+
+    static constexpr int32_t DOUBLE = 5130;
   };
 
   /**
diff --git a/CesiumGltf/include/CesiumGltf/AccessorView.h b/CesiumGltf/include/CesiumGltf/AccessorView.h
index 3d73bf2e7..49e723d71 100644
--- a/CesiumGltf/include/CesiumGltf/AccessorView.h
+++ b/CesiumGltf/include/CesiumGltf/AccessorView.h
@@ -449,16 +449,36 @@ createAccessorView(
         model,
         accessor,
         std::forward<TCallback>(callback));
+  case Accessor::ComponentType::INT:
+    return ::CesiumGltf::CesiumImpl::createAccessorView<TCallback, int32_t>(
+        model,
+        accessor,
+        std::forward<TCallback>(callback));
   case Accessor::ComponentType::UNSIGNED_INT:
     return ::CesiumGltf::CesiumImpl::createAccessorView<TCallback, uint32_t>(
         model,
         accessor,
         std::forward<TCallback>(callback));
+  case Accessor::ComponentType::INT64:
+    return ::CesiumGltf::CesiumImpl::createAccessorView<TCallback, int64_t>(
+        model,
+        accessor,
+        std::forward<TCallback>(callback));
+  case Accessor::ComponentType::UNSIGNED_INT64:
+    return ::CesiumGltf::CesiumImpl::createAccessorView<TCallback, uint64_t>(
+        model,
+        accessor,
+        std::forward<TCallback>(callback));
   case Accessor::ComponentType::FLOAT:
     return ::CesiumGltf::CesiumImpl::createAccessorView<TCallback, float>(
         model,
         accessor,
         std::forward<TCallback>(callback));
+  case Accessor::ComponentType::DOUBLE:
+    return ::CesiumGltf::CesiumImpl::createAccessorView<TCallback, double>(
+        model,
+        accessor,
+        std::forward<TCallback>(callback));
   default:
     return callback(AccessorView<AccessorTypes::SCALAR<float>>(
         AccessorViewStatus::InvalidComponentType));
diff --git a/CesiumGltf/src/Accessor.cpp b/CesiumGltf/src/Accessor.cpp
index 8c87d616a..075df596c 100644
--- a/CesiumGltf/src/Accessor.cpp
+++ b/CesiumGltf/src/Accessor.cpp
@@ -39,9 +39,14 @@ Accessor::computeByteSizeOfComponent(int32_t componentType) noexcept {
   case CesiumGltf::Accessor::ComponentType::SHORT:
   case CesiumGltf::Accessor::ComponentType::UNSIGNED_SHORT:
     return 2;
+  case CesiumGltf::Accessor::ComponentType::INT:
   case CesiumGltf::Accessor::ComponentType::UNSIGNED_INT:
   case CesiumGltf::Accessor::ComponentType::FLOAT:
     return 4;
+  case CesiumGltf::Accessor::ComponentType::INT64:
+  case CesiumGltf::Accessor::ComponentType::UNSIGNED_INT64:
+  case CesiumGltf::Accessor::ComponentType::DOUBLE:
+    return 8;
   default:
     // TODO Print a warning here!
     return 0;

From 1a3173550a47f5dcca815d418d06eb3cb6c772bc Mon Sep 17 00:00:00 2001
From: Sean Lilley <lilleyse@gmail.com>
Date: Tue, 22 Oct 2024 10:18:27 -0400
Subject: [PATCH 2/2] Update CHANGES.md

---
 CHANGES.md | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/CHANGES.md b/CHANGES.md
index a12aad35a..1274c97b6 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,11 @@
 # Change Log
 
+### Not Released Yet
+
+##### Additions :tada:
+
+- Added support for `EXT_accessor_additional_types` in `AccessorView`.
+
 ### v0.40.1 - 2024-10-01
 
 ##### Fixes :wrench: