diff --git a/src/lib.rs b/src/lib.rs
index 4dc3e27..3b35ed8 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -21,6 +21,6 @@ fn load_dom<R:Read>(input:R)->Result<rbx_dom_weak::WeakDom,Error>{
 	}
 }
 
-pub fn read<R:Read>(input:R)->Result<strafesnet_common::map::CompleteMap,Error>{
-	Ok(rbx::convert(load_dom(input)?))
+pub fn read<R:Read,F:FnMut(&str)->Option<strafesnet_common::model::TextureId>>(input:R,acquire_id:F)->Result<strafesnet_common::map::CompleteMap,Error>{
+	Ok(rbx::convert(load_dom(input)?,acquire_id))
 }
\ No newline at end of file
diff --git a/src/rbx.rs b/src/rbx.rs
index fe9e9d3..ec8c051 100644
--- a/src/rbx.rs
+++ b/src/rbx.rs
@@ -337,22 +337,6 @@ fn get_attributes(object:&rbx_dom_weak::Instance,can_collide:bool,velocity:Plana
 	}
 }
 
-struct RobloxAssetId(u64);
-struct RobloxAssetIdParseErr;
-impl std::str::FromStr for RobloxAssetId{
-	type Err=RobloxAssetIdParseErr;
-	fn from_str(s:&str)->Result<Self,Self::Err>{
-		let regman=lazy_regex::regex!(r"(\d+)$");
-		if let Some(captures) = regman.captures(s) {
-			if captures.len()==2{//captures[0] is all captures concatenated, and then each individual capture
-				if let Ok(id) = captures[0].parse::<u64>(){
-					return Ok(Self(id));
-				}
-			}
-		}
-		Err(RobloxAssetIdParseErr)
-	}
-}
 #[derive(Clone,Copy,PartialEq)]
 struct RobloxTextureTransform{
 	offset_u:f32,
@@ -421,7 +405,7 @@ struct ModelOwnedAttributes{
 	color:model::Color4,//transparency is in here
 	transform:Planar64Affine3,
 }
-pub fn convert(dom:rbx_dom_weak::WeakDom)->map::CompleteMap{
+pub fn convert<F:FnMut(&str)->Option<model::TextureId>>(dom:rbx_dom_weak::WeakDom,mut acquire_id:F)->map::CompleteMap{
 	let mut modes_builder=ModesBuilder::default();
 
 	let mut models1=Vec::new();
@@ -437,7 +421,6 @@ pub fn convert(dom:rbx_dom_weak::WeakDom)->map::CompleteMap{
 	//TODO: some sort of thing like RobloxResources that describes where to get each resource
 	//this would be another dependency built for downloading resources to keep this one clean
 	let mut unique_render_groups=vec![RenderConfig::default()];
-	let mut render_id_from_asset_id=HashMap::<u64,RenderConfigId>::new();
 	let textureless_render_group=RenderConfigId::new(0);
 
 	let mut object_refs=Vec::new();
@@ -520,18 +503,14 @@ pub fn convert(dom:rbx_dom_weak::WeakDom)->map::CompleteMap{
 							decal.properties.get("Color3"),
 							decal.properties.get("Transparency"),
 						) {
-							if let Ok(asset_id)=content.clone().into_string().parse::<RobloxAssetId>(){
-								let render_id=textureless_render_group;
-								/* TODO: textures
-								let render_id=if let Some(&render_id)=render_id_from_asset_id.get(&asset_id.0){
-									render_id
-								}else{
-									let render_id=RenderConfigId::new(unique_render_groups.len() as u32);
-									render_id_from_asset_id.insert(asset_id.0,render_id);
-									unique_render_groups.push(RenderConfig::texture(asset_id.0));
-									render_id
+							if let Some(texture_id)=acquire_id(content.as_ref()){
+								//this is equivalent to a get_or_create pattern because there is a singular no-texture RenderId
+								//so RenderId==TextureId+1
+								//not the most failsafe code but this is just for the map tool lmao
+								if unique_render_groups.len()==texture_id.get() as usize+1{
+									unique_render_groups.push(RenderConfig::texture(texture_id));
 								};
-								*/
+								let render_id=RenderConfigId::new(texture_id.get()+1);
 								let normal_id=normalid.to_u32();
 								if normal_id<6{
 									let (roblox_texture_color,roblox_texture_transform)=if decal.class=="Texture"{
@@ -733,7 +712,7 @@ pub fn convert(dom:rbx_dom_weak::WeakDom)->map::CompleteMap{
 		}
 	}).collect();
 	map::CompleteMap{
-		render_configs:vec![RenderConfig::default()],//asset_id_from_texture_id.iter().map(|t|t.to_string()).collect(),
+		render_configs:unique_render_groups,//asset_id_from_texture_id.iter().map(|t|t.to_string()).collect(),
 		meshes,
 		models,
 		modes:modes_builder.build(),