Custom Particle Trait to enable instancing and instance count

Sources/armory/trait/CustomParticle.hx

@@ -0,0 +1,40 @@
+package armory.trait;
+
+import iron.object.MeshObject;
+
+/**
+ * Trait to enable GPU instancing of Mesh objects
+ */
+class CustomParticle extends iron.Trait {
+
+	@prop
+	var ParticleCount: Int = 100;
+
+	public function new() {
+		super();
+
+		notifyOnInit(function() {
+			var partCount = ParticleCount;
+			setupSimpleInstanced(partCount);
+		});
+	}
+
+	function setupSimpleInstanced(count: Int){
+		if(object.raw.type == 'mesh_object')
+		{
+			var meshObjGeom = cast(object, MeshObject).data.geom;
+			meshObjGeom.instanced = true;
+			meshObjGeom.instanceCount = count;
+		}
+	}
+
+	public function updateParticleCount(count: Int){
+
+		if(object.raw.type == 'mesh_object')
+		{
+			var meshObjGeom = cast(object, MeshObject).data.geom;
+			meshObjGeom.instanced = true;
+			meshObjGeom.instanceCount = count;
+		}
+	}
+}