Cloth works with Actors in Atom. Cloth system uses MeshAssetHelper to read model mesh information for actors too.

2021-04-16 18:24:29 +01:00
parent 41eadd60e4
commit 808fd1d3ba
6 changed files with 41 additions and 67 deletions
@@ -448,9 +448,18 @@ namespace NvCloth
        const auto& renderTangents = renderData.m_tangents;
        const auto& renderBitangents = renderData.m_bitangents;

-        AZ::Data::Asset<AZ::RPI::ModelAsset> modelAsset;
-        AZ::Render::MeshComponentRequestBus::EventResult(
-            modelAsset, m_entityId, &AZ::Render::MeshComponentRequestBus::Events::GetModelAsset);
+        // Since Atom has a 1:1 relation with between ModelAsset buffers and Model buffers,
+        // internally it created a new asset for the model instance. So it's important to
+        // get the asset from the model when we want to write to them, instead of getting the
+        // ModelAsset directly from the bus (which returns the original asset shared by all entities).
+        AZ::Data::Instance<AZ::RPI::Model> model;
+        AZ::Render::MeshComponentRequestBus::EventResult(model, m_entityId, &AZ::Render::MeshComponentRequestBus::Events::GetModel);
+        if (!model)
+        {
+            return;
+        }
+
+        AZ::Data::Asset<AZ::RPI::ModelAsset> modelAsset = model->GetModelAsset();
        if (!modelAsset.IsReady())
        {
            return;