lowest lod number is highest quality

Cargo.lock

@@ -11,6 +11,12 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "array-init"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3d62b7694a562cdf5a74227903507c56ab2cc8bdd1f781ed5cb4cf9c9f810bfc"
+
 [[package]]
 name = "arrayref"
 version = "0.3.7"
@@ -35,6 +41,30 @@ version = "0.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8"
 
+[[package]]
+name = "binrw"
+version = "0.13.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "173901312e9850391d4d7c1318c4e099fdc037d61870fca427429830efdb4e5f"
+dependencies = [
+ "array-init",
+ "binrw_derive",
+ "bytemuck",
+]
+
+[[package]]
+name = "binrw_derive"
+version = "0.13.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cb515fdd6f8d3a357c8e19b8ec59ef53880807864329b1cb1cba5c53bf76557e"
+dependencies = [
+ "either",
+ "owo-colors",
+ "proc-macro2",
+ "quote",
+ "syn 1.0.109",
+]
+
 [[package]]
 name = "bitflags"
 version = "1.3.2"
@@ -60,6 +90,12 @@ dependencies = [
  "constant_time_eq",
 ]
 
+[[package]]
+name = "bytemuck"
+version = "1.14.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a2ef034f05691a48569bd920a96c81b9d91bbad1ab5ac7c4616c1f6ef36cb79f"
+
 [[package]]
 name = "byteorder"
 version = "1.5.0"
@@ -84,6 +120,12 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f7144d30dcf0fafbce74250a3963025d8d52177934239851c917d29f1df280c2"
 
+[[package]]
+name = "either"
+version = "1.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "11157ac094ffbdde99aa67b23417ebdd801842852b500e395a45a9c0aac03e4a"
+
 [[package]]
 name = "getrandom"
 version = "0.2.12"
@@ -108,7 +150,7 @@ source = "git+https://git.itzana.me/Quaternions/id?rev=1f710976cc786c8853dab73d6
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.52",
 ]
 
 [[package]]
@@ -131,7 +173,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "regex",
- "syn",
+ "syn 2.0.52",
 ]
 
 [[package]]
@@ -193,6 +235,12 @@ version = "1.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
 
+[[package]]
+name = "owo-colors"
+version = "3.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c1b04fb49957986fdce4d6ee7a65027d55d4b6d2265e5848bbb507b58ccfdb6f"
+
 [[package]]
 name = "paste"
 version = "1.0.14"
@@ -230,7 +278,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8021cf59c8ec9c432cfc2526ac6b8aa508ecaf29cd415f271b8406c1b851c3fd"
 dependencies = [
  "quote",
- "syn",
+ "syn 2.0.52",
 ]
 
 [[package]]
@@ -295,6 +343,15 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "rbx_mesh"
+version = "0.1.0"
+source = "git+https://github.com/krakow10/rbx_mesh?rev=0e1c66d9acc7e1f2c187dd0899a9434d93ae0453#0e1c66d9acc7e1f2c187dd0899a9434d93ae0453"
+dependencies = [
+ "binrw",
+ "lazy-regex",
+]
+
 [[package]]
 name = "rbx_reflection"
 version = "4.5.0"
@@ -411,13 +468,13 @@ checksum = "7eb0b34b42edc17f6b7cac84a52a1c5f0e1bb2227e997ca9011ea3dd34e8610b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.52",
 ]
 
 [[package]]
 name = "strafesnet_common"
 version = "0.1.0"
-source = "git+https://git.itzana.me/StrafesNET/common?rev=ef922135e6d19f296d8e4d90df0d0d71fa3412e2#ef922135e6d19f296d8e4d90df0d0d71fa3412e2"
+source = "git+https://git.itzana.me/StrafesNET/common?rev=a9f3e61f2bb1074025b6cb466a5e3f2abc988c34#a9f3e61f2bb1074025b6cb466a5e3f2abc988c34"
 dependencies = [
  "bitflags 2.4.2",
  "glam",
@@ -428,15 +485,28 @@ dependencies = [
 name = "strafesnet_rbx_loader"
 version = "0.2.0"
 dependencies = [
+ "bytemuck",
  "glam",
  "lazy-regex",
  "rbx_binary",
  "rbx_dom_weak",
+ "rbx_mesh",
  "rbx_reflection_database",
  "rbx_xml",
  "strafesnet_common",
 ]
 
+[[package]]
+name = "syn"
+version = "1.0.109"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
 [[package]]
 name = "syn"
 version = "2.0.52"
@@ -465,7 +535,7 @@ checksum = "a953cb265bef375dae3de6663da4d3804eee9682ea80d8e2542529b73c531c81"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.52",
 ]
 
 [[package]]

Cargo.toml

@@ -12,4 +12,6 @@ rbx_binary = { git = "https://github.com/krakow10/rbx-dom", rev = "841643178680c
 rbx_dom_weak = { git = "https://github.com/krakow10/rbx-dom", rev = "841643178680c9f3143422778f9c52f949b222b9" }
 rbx_reflection_database = { git = "https://github.com/krakow10/rbx-dom", rev = "841643178680c9f3143422778f9c52f949b222b9" }
 rbx_xml = { git = "https://github.com/krakow10/rbx-dom", rev = "841643178680c9f3143422778f9c52f949b222b9" }
-strafesnet_common = { git = "https://git.itzana.me/StrafesNET/common", rev = "ef922135e6d19f296d8e4d90df0d0d71fa3412e2" }
+rbx_mesh = { git = "https://github.com/krakow10/rbx_mesh", rev = "0e1c66d9acc7e1f2c187dd0899a9434d93ae0453" }
+strafesnet_common = { git = "https://git.itzana.me/StrafesNET/common", rev = "a9f3e61f2bb1074025b6cb466a5e3f2abc988c34" }
+bytemuck = "1.14.3"

src/lib.rs

@@ -1,8 +1,21 @@
 use std::io::Read;
 
 mod rbx;
+mod mesh;
 mod primitives;
 
+pub mod data{
+	pub struct RobloxMeshBytes(Vec<u8>);
+	impl RobloxMeshBytes{
+		pub fn new(bytes:Vec<u8>)->Self{
+			Self(bytes)
+		}
+		pub(crate) fn cursor(self)->std::io::Cursor<Vec<u8>>{
+			std::io::Cursor::new(self.0)
+		}
+	}
+}
+
 pub struct Dom(rbx_dom_weak::WeakDom);
 
 #[derive(Debug)]
@@ -31,6 +44,14 @@ pub fn read<R:Read>(input:R)->Result<Dom,ReadError>{
 
 //ConvertError
 
-pub fn convert<F:FnMut(Option<&str>)->strafesnet_common::model::RenderConfigId>(dom:&Dom,acquire_render_config_id:F)->rbx::PartialMap1{
-	rbx::convert(&dom.0,acquire_render_config_id)
+pub fn convert<AcquireRenderConfigId,AcquireMeshId>(
+	dom:&Dom,
+	acquire_render_config_id:AcquireRenderConfigId,
+	acquire_mesh_id:AcquireMeshId
+)->rbx::PartialMap1
+where
+	AcquireRenderConfigId:FnMut(Option<&str>)->strafesnet_common::model::RenderConfigId,
+	AcquireMeshId:FnMut(&str)->strafesnet_common::model::MeshId,
+{
+	rbx::convert(&dom.0,acquire_render_config_id,acquire_mesh_id)
 }

src/mesh.rs

@@ -0,0 +1,210 @@
+use std::collections::HashMap;
+
+use rbx_mesh::mesh::{Vertex2, Vertex2Truncated};
+use strafesnet_common::{integer::Planar64Vec3,model::{self, ColorId, IndexedVertex, NormalId, PolygonGroup, PolygonList, PositionId, TextureCoordinateId, VertexId}};
+
+#[derive(Debug)]
+pub enum Error{
+	Planar64Vec3(strafesnet_common::integer::Planar64TryFromFloatError),
+	RbxMesh(rbx_mesh::mesh::Error)
+}
+impl std::fmt::Display for Error{
+	fn fmt(&self,f:&mut std::fmt::Formatter<'_>)->std::fmt::Result{
+		write!(f,"{self:?}")
+	}
+}
+impl std::error::Error for Error{}
+
+fn ingest_vertices2<
+	AcquirePosId,
+	AcquireTexId,
+	AcquireNormalId,
+	AcquireColorId,
+	AcquireVertexId,
+>(
+	vertices:Vec<Vertex2>,
+	acquire_pos_id:&mut AcquirePosId,
+	acquire_tex_id:&mut AcquireTexId,
+	acquire_normal_id:&mut AcquireNormalId,
+	acquire_color_id:&mut AcquireColorId,
+	acquire_vertex_id:&mut AcquireVertexId,
+)->Result<HashMap<rbx_mesh::mesh::VertexId2,VertexId>,Error>
+where
+	AcquirePosId:FnMut([f32;3])->Result<PositionId,Error>,
+	AcquireTexId:FnMut([f32;2])->TextureCoordinateId,
+	AcquireNormalId:FnMut([f32;3])->Result<NormalId,Error>,
+	AcquireColorId:FnMut([f32;4])->ColorId,
+	AcquireVertexId:FnMut(IndexedVertex)->VertexId,
+{
+	//this monster is collecting a map of old_vertices_index -> unique_vertices_index
+	//while also doing the inserting unique entries into lists simultaneously
+	Ok(vertices.into_iter().enumerate().map(|(vertex_id,vertex)|Ok((
+		rbx_mesh::mesh::VertexId2(vertex_id as u32),
+		acquire_vertex_id(IndexedVertex{
+			pos:acquire_pos_id(vertex.pos)?,
+			tex:acquire_tex_id(vertex.tex),
+			normal:acquire_normal_id(vertex.norm)?,
+			color:acquire_color_id(vertex.color.map(|f|f as f32/255.0f32))
+		}),
+	))).collect::<Result<_,_>>()?)
+}
+fn ingest_vertices_truncated2<
+	AcquirePosId,
+	AcquireTexId,
+	AcquireNormalId,
+	AcquireVertexId,
+>(
+	vertices:Vec<Vertex2Truncated>,
+	acquire_pos_id:&mut AcquirePosId,
+	acquire_tex_id:&mut AcquireTexId,
+	acquire_normal_id:&mut AcquireNormalId,
+	static_color_id:ColorId,//pick one color and fill everything with it
+	acquire_vertex_id:&mut AcquireVertexId,
+)->Result<HashMap<rbx_mesh::mesh::VertexId2,VertexId>,Error>
+where
+	AcquirePosId:FnMut([f32;3])->Result<PositionId,Error>,
+	AcquireTexId:FnMut([f32;2])->TextureCoordinateId,
+	AcquireNormalId:FnMut([f32;3])->Result<NormalId,Error>,
+	AcquireVertexId:FnMut(IndexedVertex)->VertexId,
+{
+	//this monster is collecting a map of old_vertices_index -> unique_vertices_index
+	//while also doing the inserting unique entries into lists simultaneously
+	Ok(vertices.into_iter().enumerate().map(|(vertex_id,vertex)|Ok((
+		rbx_mesh::mesh::VertexId2(vertex_id as u32),
+		acquire_vertex_id(IndexedVertex{
+			pos:acquire_pos_id(vertex.pos)?,
+			tex:acquire_tex_id(vertex.tex),
+			normal:acquire_normal_id(vertex.norm)?,
+			color:static_color_id
+		}),
+	))).collect::<Result<_,_>>()?)
+}
+
+fn ingest_faces2_lods3(
+	polygon_groups:&mut Vec<PolygonGroup>,
+	vertex_id_map:&HashMap<rbx_mesh::mesh::VertexId2,VertexId>,
+	faces:&Vec<rbx_mesh::mesh::Face2>,
+	lods:&Vec<rbx_mesh::mesh::Lod3>
+){
+	//faces have to be split into polygon groups based on lod
+	polygon_groups.extend(lods.windows(2).map(|lod_pair|
+		PolygonGroup::PolygonList(PolygonList::new(faces[lod_pair[0].0 as usize..lod_pair[1].0 as usize].iter().map(|face|
+			vec![vertex_id_map[&face.0],vertex_id_map[&face.1],vertex_id_map[&face.2]]
+		).collect()))
+	))
+}
+
+pub fn convert(roblox_mesh_bytes:crate::data::RobloxMeshBytes)->Result<model::Mesh,Error>{
+	//generate that mesh boi
+	let mut unique_pos=Vec::new();
+	let mut pos_id_from=HashMap::new();
+	let mut unique_tex=Vec::new();
+	let mut tex_id_from=HashMap::new();
+	let mut unique_normal=Vec::new();
+	let mut normal_id_from=HashMap::new();
+	let mut unique_color=Vec::new();
+	let mut color_id_from=HashMap::new();
+	let mut unique_vertices=Vec::new();
+	let mut vertex_id_from=HashMap::new();
+	let mut polygon_groups=Vec::new();
+	let mut acquire_pos_id=|pos|{
+		let p=Planar64Vec3::try_from(pos).map_err(Error::Planar64Vec3)?;
+		Ok(PositionId::new(*pos_id_from.entry(p).or_insert_with(||{
+			let pos_id=unique_pos.len();
+			unique_pos.push(p);
+			pos_id
+		}) as u32))
+	};
+	let mut acquire_tex_id=|tex|{
+		let h=bytemuck::cast::<[f32;2],[u32;2]>(tex);
+		TextureCoordinateId::new(*tex_id_from.entry(h).or_insert_with(||{
+			let tex_id=unique_tex.len();
+			unique_tex.push(glam::Vec2::from_array(tex));
+			tex_id
+		}) as u32)
+	};
+	let mut acquire_normal_id=|normal|{
+		let n=Planar64Vec3::try_from(normal).map_err(Error::Planar64Vec3)?;
+		Ok(NormalId::new(*normal_id_from.entry(n).or_insert_with(||{
+			let normal_id=unique_normal.len();
+			unique_normal.push(n);
+			normal_id
+		}) as u32))
+	};
+	let mut acquire_color_id=|color|{
+		let h=bytemuck::cast::<[f32;4],[u32;4]>(color);
+		ColorId::new(*color_id_from.entry(h).or_insert_with(||{
+			let color_id=unique_color.len();
+			unique_color.push(glam::Vec4::from_array(color));
+			color_id
+		}) as u32)
+	};
+	let mut acquire_vertex_id=|vertex:IndexedVertex|{
+		VertexId::new(*vertex_id_from.entry(vertex.clone()).or_insert_with(||{
+			let vertex_id=unique_vertices.len();
+			unique_vertices.push(vertex);
+			vertex_id
+		}) as u32)
+	};
+	match rbx_mesh::read_versioned(roblox_mesh_bytes.cursor()).map_err(Error::RbxMesh)?{
+		rbx_mesh::mesh::VersionedMesh::Version1(mesh)=>{
+			let color_id=acquire_color_id([1.0f32;4]);
+			polygon_groups.push(PolygonGroup::PolygonList(PolygonList::new(mesh.vertices.chunks_exact(3).map(|trip|{
+				let mut ingest_vertex1=|vertex:&rbx_mesh::mesh::Vertex1|Ok(acquire_vertex_id(IndexedVertex{
+					pos:acquire_pos_id(vertex.pos)?,
+					tex:acquire_tex_id([vertex.tex[0],vertex.tex[1]]),
+					normal:acquire_normal_id(vertex.norm)?,
+					color:color_id,
+				}));
+				Ok(vec![ingest_vertex1(&trip[0])?,ingest_vertex1(&trip[1])?,ingest_vertex1(&trip[2])?])
+			}).collect::<Result<_,_>>()?)));
+		},
+		rbx_mesh::mesh::VersionedMesh::Version2(mesh)=>{
+			let vertex_id_map=match mesh.header.sizeof_vertex{
+				rbx_mesh::mesh::SizeOfVertex2::Truncated=>{
+					//pick white and make all the vertices white
+					let color_id=acquire_color_id([1.0f32;4]);
+					ingest_vertices_truncated2(mesh.vertices_truncated,&mut acquire_pos_id,&mut acquire_tex_id,&mut acquire_normal_id,color_id,&mut acquire_vertex_id)
+				},
+				rbx_mesh::mesh::SizeOfVertex2::Full=>ingest_vertices2(mesh.vertices,&mut acquire_pos_id,&mut acquire_tex_id,&mut acquire_normal_id,&mut acquire_color_id,&mut acquire_vertex_id),
+			}?;
+			//one big happy group for all the faces
+			polygon_groups.push(PolygonGroup::PolygonList(PolygonList::new(mesh.faces.into_iter().map(|face|
+				vec![vertex_id_map[&face.0],vertex_id_map[&face.1],vertex_id_map[&face.2]]
+			).collect())));
+		},
+		rbx_mesh::mesh::VersionedMesh::Version3(mesh)=>{
+			let vertex_id_map=match mesh.header.sizeof_vertex{
+				rbx_mesh::mesh::SizeOfVertex2::Truncated=>{
+					let color_id=acquire_color_id([1.0f32;4]);
+					ingest_vertices_truncated2(mesh.vertices_truncated,&mut acquire_pos_id,&mut acquire_tex_id,&mut acquire_normal_id,color_id,&mut acquire_vertex_id)
+				},
+				rbx_mesh::mesh::SizeOfVertex2::Full=>ingest_vertices2(mesh.vertices,&mut acquire_pos_id,&mut acquire_tex_id,&mut acquire_normal_id,&mut acquire_color_id,&mut acquire_vertex_id),
+			}?;
+			ingest_faces2_lods3(&mut polygon_groups,&vertex_id_map,&mesh.faces,&mesh.lods);
+		},
+		rbx_mesh::mesh::VersionedMesh::Version4(mesh)=>{
+			let vertex_id_map=ingest_vertices2(
+				mesh.vertices,&mut acquire_pos_id,&mut acquire_tex_id,&mut acquire_normal_id,&mut acquire_color_id,&mut acquire_vertex_id
+			)?;
+			ingest_faces2_lods3(&mut polygon_groups,&vertex_id_map,&mesh.faces,&mesh.lods);
+		},
+		rbx_mesh::mesh::VersionedMesh::Version5(mesh)=>{
+			let vertex_id_map=ingest_vertices2(
+				mesh.vertices,&mut acquire_pos_id,&mut acquire_tex_id,&mut acquire_normal_id,&mut acquire_color_id,&mut acquire_vertex_id
+			)?;
+			ingest_faces2_lods3(&mut polygon_groups,&vertex_id_map,&mesh.faces,&mesh.lods);
+		},
+	}
+	Ok(model::Mesh{
+		unique_pos,
+		unique_normal,
+		unique_tex,
+		unique_color,
+		unique_vertices,
+		polygon_groups,
+		//these should probably be moved to the model...
+		graphics_groups:Vec::new(),
+		physics_groups:Vec::new(),
+	})
+}

src/rbx.rs

@@ -134,8 +134,7 @@ impl ModesBuilder{
 		self.stage_updates.push((mode_id,stage_id,stage_update));
 	}
 }
-fn get_attributes(object:&rbx_dom_weak::Instance,can_collide:bool,velocity:Planar64Vec3,model_id:model::ModelId,modes_builder:&mut ModesBuilder,wormhole_in_model_to_id:&mut HashMap<model::ModelId,u32>,wormhole_id_to_out_model:&mut HashMap<u32,model::ModelId>)->attr::CollisionAttributes{
-	let name=object.name.as_str();
+fn get_attributes(name:&str,can_collide:bool,velocity:Planar64Vec3,model_id:model::ModelId,modes_builder:&mut ModesBuilder,wormhole_in_model_to_id:&mut HashMap<model::ModelId,u32>,wormhole_id_to_out_model:&mut HashMap<u32,model::ModelId>)->attr::CollisionAttributes{
 	let mut general=attr::GeneralAttributes::default();
 	let mut intersecting=attr::IntersectingAttributes::default();
 	let mut contacting=attr::ContactingAttributes::default();
@@ -404,24 +403,49 @@ enum RobloxBasePartDescription{
 	Wedge(RobloxWedgeDescription),
 	CornerWedge(RobloxCornerWedgeDescription),
 }
+enum Shape{
+	Primitive(primitives::Primitives),
+	MeshPart,
+}
+enum MeshAvailability{
+	Immediate,
+	Deferred(RenderConfigId),
+}
+struct DeferredModelDeferredAttributes{
+	render:RenderConfigId,
+	model:ModelDeferredAttributes,
+}
+struct ModelDeferredAttributes{
+	mesh:model::MeshId,
+	deferred_attributes:GetAttributesArgs,
+	color:model::Color4,//transparency is in here
+	transform:Planar64Affine3,
+}
 struct ModelOwnedAttributes{
 	mesh:model::MeshId,
 	attributes:attr::CollisionAttributes,
 	color:model::Color4,//transparency is in here
 	transform:Planar64Affine3,
 }
-pub fn convert<F:FnMut(Option<&str>)->model::RenderConfigId>(dom:&rbx_dom_weak::WeakDom,mut acquire_render_config_id:F)->PartialMap1{
-	let mut modes_builder=ModesBuilder::default();
+struct GetAttributesArgs{
+	name:Box<str>,
+	can_collide:bool,
+	velocity:Planar64Vec3,
+}
+pub fn convert<AcquireRenderConfigId,AcquireMeshId>(
+	dom:&rbx_dom_weak::WeakDom,
+	mut acquire_render_config_id:AcquireRenderConfigId,
+	mut acquire_mesh_id:AcquireMeshId,
+)->PartialMap1
+where
+	AcquireRenderConfigId:FnMut(Option<&str>)->model::RenderConfigId,
+	AcquireMeshId:FnMut(&str)->model::MeshId,
+{
 
-	let mut models1=Vec::new();
-	let mut meshes=Vec::new();
-	let mut indexed_model_id_from_description=HashMap::new();
-
-	let mut unique_attributes=Vec::new();
-	let mut attributes_id_from_attributes=HashMap::new();
-
-	let mut wormhole_in_model_to_id=HashMap::new();
-	let mut wormhole_id_to_out_model=HashMap::new();
+	let mut deferred_models_deferred_attributes=Vec::new();
+	let mut primitive_models_deferred_attributes=Vec::new();
+	let mut primitive_meshes=Vec::new();
+	let mut mesh_id_from_description=HashMap::new();
 
 	//just going to leave it like this for now instead of reworking the data structures for this whole thing
 	let textureless_render_group=acquire_render_config_id(None);
@@ -462,31 +486,35 @@ pub fn convert<F:FnMut(Option<&str>)->model::RenderConfigId>(dom:&rbx_dom_weak::
 				}
 
 				//at this point a new model is going to be generated for sure.
-				let model_id=model::ModelId::new(models1.len() as u32);
+				let model_id=model::ModelId::new(primitive_models_deferred_attributes.len() as u32);
 
 				//TODO: also detect "CylinderMesh" etc here
 				let shape=match object.class.as_str(){
 					"Part"=>if let Some(rbx_dom_weak::types::Variant::Enum(shape))=object.properties.get("Shape"){
-						match shape.to_u32(){
+						Shape::Primitive(match shape.to_u32(){
 							0=>primitives::Primitives::Sphere,
 							1=>primitives::Primitives::Cube,
 							2=>primitives::Primitives::Cylinder,
 							3=>primitives::Primitives::Wedge,
 							4=>primitives::Primitives::CornerWedge,
 							other=>panic!("Funky roblox PartType={};",other),
-						}
+						})
 					}else{
 						panic!("Part has no Shape!");
 					},
-					"TrussPart"=>primitives::Primitives::Cube,
-					"WedgePart"=>primitives::Primitives::Wedge,
-					"CornerWedgePart"=>primitives::Primitives::CornerWedge,
+					"TrussPart"=>Shape::Primitive(primitives::Primitives::Cube),
+					"WedgePart"=>Shape::Primitive(primitives::Primitives::Wedge),
+					"CornerWedgePart"=>Shape::Primitive(primitives::Primitives::CornerWedge),
+					"MeshPart"=>Shape::MeshPart,
 					_=>{
 						println!("Unsupported BasePart ClassName={}; defaulting to cube",object.class);
-						primitives::Primitives::Cube
+						Shape::Primitive(primitives::Primitives::Cube)
 					}
 				};
 
+				let (availability,mesh_id)=match shape{
+					Shape::Primitive(primitive_shape)=>{
+						//TODO: TAB TAB
 				//use the biggest one and cut it down later...
 				let mut part_texture_description:RobloxPartDescription=[None,None,None,None,None,None];
 				temp_objects.clear();
@@ -549,7 +577,7 @@ pub fn convert<F:FnMut(Option<&str>)->model::RenderConfigId>(dom:&rbx_dom_weak::
 										transform:roblox_texture_transform,
 									});
 								}else{
-									println!("NormalId={} unsupported for shape={:?}",normal_id,shape);
+									println!("NormalId={} unsupported for shape={:?}",normal_id,primitive_shape);
 								}
 						}
 					}
@@ -563,7 +591,7 @@ pub fn convert<F:FnMut(Option<&str>)->model::RenderConfigId>(dom:&rbx_dom_weak::
 					f4,//Cube::Bottom
 					f5,//Cube::Front
 				]=part_texture_description;
-				let basepart_texture_description=match shape{
+				let basepart_description=match primitive_shape{
 					primitives::Primitives::Sphere=>RobloxBasePartDescription::Sphere([f0,f1,f2,f3,f4,f5]),
 					primitives::Primitives::Cube=>RobloxBasePartDescription::Part([f0,f1,f2,f3,f4,f5]),
 					primitives::Primitives::Cylinder=>RobloxBasePartDescription::Cylinder([f0,f1,f2,f3,f4,f5]),
@@ -585,13 +613,13 @@ pub fn convert<F:FnMut(Option<&str>)->model::RenderConfigId>(dom:&rbx_dom_weak::
 					]),
 				};
 				//make new model if unit cube has not been created before
-				let indexed_model_id=if let Some(&indexed_model_id)=indexed_model_id_from_description.get(&basepart_texture_description){
+				let mesh_id=if let Some(&mesh_id)=mesh_id_from_description.get(&basepart_description){
 					//push to existing texture model
-					indexed_model_id
+					mesh_id
 				}else{
-					let indexed_model_id=model::MeshId::new(meshes.len() as u32);
-					indexed_model_id_from_description.insert(basepart_texture_description.clone(),indexed_model_id);//borrow checker going crazy
-					meshes.push(match basepart_texture_description{
+					let mesh_id=model::MeshId::new(primitive_meshes.len() as u32);
+					mesh_id_from_description.insert(basepart_description.clone(),mesh_id);//borrow checker going crazy
+					let mesh=match basepart_description{
 						RobloxBasePartDescription::Sphere(part_texture_description)
 						|RobloxBasePartDescription::Cylinder(part_texture_description)
 						|RobloxBasePartDescription::Part(part_texture_description)=>{
@@ -652,34 +680,166 @@ pub fn convert<F:FnMut(Option<&str>)->model::RenderConfigId>(dom:&rbx_dom_weak::
 							}
 							primitives::generate_partial_unit_cornerwedge(cornerwedge_face_description)
 						},
-					});
-					indexed_model_id
+					};
+					primitive_meshes.push(mesh);
+					mesh_id
 				};
-				let attributes=get_attributes(
-					&object,
-					*can_collide,
-					Planar64Vec3::try_from([velocity.x,velocity.y,velocity.z]).unwrap(),
+				(MeshAvailability::Immediate,mesh_id)
+					},
+					Shape::MeshPart=>if let (
+						Some(rbx_dom_weak::types::Variant::Content(mesh_asset_id)),
+						Some(rbx_dom_weak::types::Variant::Content(texture_asset_id)),
+					)=(
+						object.properties.get("MeshId"),
+						object.properties.get("TextureID"),
+					){
+						(
+							MeshAvailability::Deferred(acquire_render_config_id(Some(texture_asset_id.as_ref()))),
+							acquire_mesh_id(mesh_asset_id.as_ref()),
+						)
+					}else{
+						panic!("Mesh has no Mesh or Texture");
+					},
+				};
+				let model_deferred_attributes=ModelDeferredAttributes{
+					mesh:mesh_id,
+					transform:model_transform,
+					color:glam::vec4(color3.r as f32/255f32, color3.g as f32/255f32, color3.b as f32/255f32, 1.0-*transparency),
+					deferred_attributes:GetAttributesArgs{
+						name:object.name.as_str().into(),
+						can_collide:*can_collide,
+						velocity:Planar64Vec3::try_from([velocity.x,velocity.y,velocity.z]).unwrap(),
+					},
+				};
+				match availability{
+					MeshAvailability::Immediate=>primitive_models_deferred_attributes.push(model_deferred_attributes),
+					MeshAvailability::Deferred(render)=>deferred_models_deferred_attributes.push(DeferredModelDeferredAttributes{
+						render,
+						model:model_deferred_attributes
+					}),
+				}
+			}
+		}
+	}
+	PartialMap1{
+		primitive_meshes,
+		primitive_models_deferred_attributes,
+		deferred_models_deferred_attributes,
+	}
+}
+struct MeshWithAabb{
+	mesh:model::Mesh,
+	aabb:strafesnet_common::aabb::Aabb,
+}
+pub struct PartialMap1{
+	primitive_meshes:Vec<model::Mesh>,
+	primitive_models_deferred_attributes:Vec<ModelDeferredAttributes>,
+	deferred_models_deferred_attributes:Vec<DeferredModelDeferredAttributes>,
+}
+impl PartialMap1{
+	pub fn add_meshpart_meshes_and_calculate_attributes(
+		mut self,
+		meshpart_meshes:impl IntoIterator<Item=(model::MeshId,crate::data::RobloxMeshBytes)>,
+	)->PartialMap2{
+		//calculate attributes
+		let mut modes_builder=ModesBuilder::default();
+		let mut unique_attributes=Vec::new();
+		let mut attributes_id_from_attributes=HashMap::new();
+
+		let mut wormhole_in_model_to_id=HashMap::new();
+		let mut wormhole_id_to_out_model=HashMap::new();
+
+		//decode roblox meshes
+		//generate mesh_id_map based on meshes that failed to load
+		let loaded_meshes:HashMap<model::MeshId,MeshWithAabb>=
+		meshpart_meshes.into_iter().flat_map(|(old_mesh_id,roblox_mesh_bytes)|
+			match crate::mesh::convert(roblox_mesh_bytes){
+				Ok(mesh)=>{
+					let mut aabb=strafesnet_common::aabb::Aabb::default();
+					for &pos in &mesh.unique_pos{
+						aabb.grow(pos);
+					}
+					Some((old_mesh_id,MeshWithAabb{
+						mesh,
+						aabb,
+					}))
+				},
+				Err(e)=>{
+					println!("Error converting mesh: {e:?}");
+					None
+				},
+			}
+		).collect();
+
+		let mut mesh_id_from_render_config_id=HashMap::new();
+		//ignore meshes that fail to load completely for now
+		let mut acquire_mesh_id_from_render_config_id=|old_mesh_id,render|{
+			loaded_meshes.get(&old_mesh_id).map(|mesh_with_aabb|(
+				*mesh_id_from_render_config_id.entry(old_mesh_id).or_insert_with(||HashMap::new())
+				.entry(render).or_insert_with(||{
+					let mesh_id=model::MeshId::new(self.primitive_meshes.len() as u32);
+					let mut mesh_clone=mesh_with_aabb.mesh.clone();
+					//add a render group lool
+					mesh_clone.graphics_groups.push(model::IndexedGraphicsGroup{
+						render,
+						//the lowest lod is highest quality
+						groups:vec![model::PolygonGroupId::new(0)]
+					});
+					self.primitive_meshes.push(mesh_clone);
+					mesh_id
+				}),
+				&mesh_with_aabb.aabb,
+			))
+		};
+		//now that the meshes are loaded, these models can be generated
+		let models_owned_attributes:Vec<ModelOwnedAttributes>=
+		self.deferred_models_deferred_attributes.into_iter().flat_map(|deferred_model_deferred_attributes|{
+			//meshes need to be cloned from loaded_meshes with a new id when they are used with a new render_id
+			//insert into primitive_meshes
+			let (mesh,aabb)=acquire_mesh_id_from_render_config_id(
+				deferred_model_deferred_attributes.model.mesh,
+				deferred_model_deferred_attributes.render
+			)?;
+			let size=aabb.size();
+			Some(ModelDeferredAttributes{
+				mesh,
+				deferred_attributes:deferred_model_deferred_attributes.model.deferred_attributes,
+				color:deferred_model_deferred_attributes.model.color,
+				transform:Planar64Affine3::new(
+					Planar64Mat3::from_cols(
+						deferred_model_deferred_attributes.model.transform.matrix3.x_axis*2/size.x(),
+						deferred_model_deferred_attributes.model.transform.matrix3.y_axis*2/size.y(),
+						deferred_model_deferred_attributes.model.transform.matrix3.z_axis*2/size.z()
+					),
+					deferred_model_deferred_attributes.model.transform.translation
+				),
+			})
+		}).chain(self.primitive_models_deferred_attributes.into_iter())
+		.enumerate().map(|(model_id,model_deferred_attributes)|{
+			let model_id=model::ModelId::new(model_id as u32);
+			ModelOwnedAttributes{
+				mesh:model_deferred_attributes.mesh,
+				attributes:get_attributes(
+					&model_deferred_attributes.deferred_attributes.name,
+					model_deferred_attributes.deferred_attributes.can_collide,
+					model_deferred_attributes.deferred_attributes.velocity,
 					model_id,
 					&mut modes_builder,
 					&mut wormhole_in_model_to_id,
 					&mut wormhole_id_to_out_model,
-				);
-				models1.push(ModelOwnedAttributes{
-					mesh:indexed_model_id,
-					transform:model_transform,
-					color:glam::vec4(color3.r as f32/255f32, color3.g as f32/255f32, color3.b as f32/255f32, 1.0-*transparency),
-					attributes,
-				});
+				),
+				color:model_deferred_attributes.color,
+				transform:model_deferred_attributes.transform,
 			}
-		}
-	}
-	let models=models1.into_iter().enumerate().map(|(model_id,mut model1)|{
+		}).collect();
+		let models=models_owned_attributes.into_iter().enumerate().map(|(model_id,mut model_owned_attributes)|{
+		//TODO: TAB
 		let model_id=model::ModelId::new(model_id as u32);
 		//update attributes with wormhole id
 		//TODO: errors/prints
 		if let Some(wormhole_id)=wormhole_in_model_to_id.get(&model_id){
 			if let Some(&wormhole_out_model_id)=wormhole_id_to_out_model.get(wormhole_id){
-				match &mut model1.attributes{
+				match &mut model_owned_attributes.attributes{
 					attr::CollisionAttributes::Contact{contacting:_,general}
 					|attr::CollisionAttributes::Intersect{intersecting:_,general}
 					=>general.wormhole=Some(attr::Wormhole{destination_model:wormhole_out_model_id}),
@@ -689,36 +849,37 @@ pub fn convert<F:FnMut(Option<&str>)->model::RenderConfigId>(dom:&rbx_dom_weak::
 		}
 		
 		//index the attributes
-		let attributes_id=if let Some(&attributes_id)=attributes_id_from_attributes.get(&model1.attributes){
+		let attributes_id=if let Some(&attributes_id)=attributes_id_from_attributes.get(&model_owned_attributes.attributes){
 			attributes_id
 		}else{
 			let attributes_id=attr::CollisionAttributesId::new(unique_attributes.len() as u32);
-			attributes_id_from_attributes.insert(model1.attributes.clone(),attributes_id);
-			unique_attributes.push(model1.attributes);
+			attributes_id_from_attributes.insert(model_owned_attributes.attributes.clone(),attributes_id);
+			unique_attributes.push(model_owned_attributes.attributes);
 			attributes_id
 		};
 		model::Model{
-			mesh:model1.mesh,
-			transform:model1.transform,
-			color:model1.color,
+			mesh:model_owned_attributes.mesh,
+			transform:model_owned_attributes.transform,
+			color:model_owned_attributes.color,
 			attributes:attributes_id,
 		}
 	}).collect();
-	PartialMap1{
-		meshes,
+	PartialMap2{
+		meshes:self.primitive_meshes,
 		models,
 		modes:modes_builder.build(),
 		attributes:unique_attributes,
 	}
+	}
 }
 
-pub struct PartialMap1{
+pub struct PartialMap2{
 	meshes:Vec<model::Mesh>,
 	models:Vec<model::Model>,
 	modes:gameplay_modes::Modes,
 	attributes:Vec<strafesnet_common::gameplay_attributes::CollisionAttributes>,
 }
-impl PartialMap1{
+impl PartialMap2{
 	pub fn add_render_configs_and_textures(
 		self,
 		render_configs:impl IntoIterator<Item=(model::RenderConfigId,model::RenderConfig)>,