feature!:

This is a breaking change needed to fully implement instancing and stencil highlighting.

Previously, users would work directly with entities (on the Dart side, ThermionEntity), e.g.

final entity = await viewer.loadGlb("some.glb");

However, Filament "entities" are a lower-level abstraction.

Loading a glTF file, for example, inserts multiple entities into the scene.

For example, each mesh, light, and camera within a glTF asset will be assigned an entity. A top-level (non-renderable) entity will also be created for the glTF asset, which can be used to transform the entire hierarchy.

"Asset" is a better representation for loading/inserting objects into the scene; think of this as a bundle of entities.

Unless you need to work directly with transforms, instancing, materials and renderables, you can work directly with ThermionAsset.

materials/unlit_fixed_size.mat

@@ -39,9 +39,9 @@
 
             worldSpace = getWorldFromModelMatrix() * modelSpace;
             material.worldPosition = worldSpace;
-            //vec4 clipSpace = getClipFromWorldMatrix() * worldSpace;
-            //clipSpace.z = 0.99f;
-            //material.worldPosition = getWorldFromClipMatrix() * clipSpace;
+            vec4 clipSpace = getClipFromWorldMatrix() * worldSpace;
+            clipSpace.z = 0.99f;
+            material.worldPosition = getWorldFromClipMatrix() * clipSpace;
         }
     }