diff --git a/src/common.rs b/src/common.rs
new file mode 100644
index 0000000..95744c9
--- /dev/null
+++ b/src/common.rs
@@ -0,0 +1,75 @@
+use std::path::PathBuf;
+use std::io::{Read,Seek};
+use anyhow::Result as AResult;
+
+fn load_image<R:Read+Seek+std::io::BufRead>(input:&mut R)->AResult<image::DynamicImage>{
+	let mut fourcc=[0u8;4];
+	input.read_exact(&mut fourcc)?;
+	input.rewind()?;
+	match &fourcc{
+		b"\x89PNG"=>Ok(image::load(input,image::ImageFormat::Png)?),
+		b"\xFF\xD8\xFF\xE0"=>Ok(image::load(input,image::ImageFormat::Jpeg)?),//JFIF
+		b"<rob"=>Err(anyhow::Error::msg("Roblox xml garbage is not supported yet")),
+		other=>Err(anyhow::Error::msg(format!("Unknown texture format {:?}",other))),
+	}
+}
+
+fn convert(file_thing:std::fs::DirEntry) -> AResult<()>{
+	let mut input = std::io::BufReader::new(std::fs::File::open(file_thing.path())?);
+
+	let image=load_image(&mut input)?.to_rgba8();//this sets a=255, arcane is actually supposed to look like that
+
+	let format=if image.width()%4!=0||image.height()%4!=0{
+		image_dds::ImageFormat::Rgba8UnormSrgb
+	}else{
+		image_dds::ImageFormat::BC7RgbaUnormSrgb
+	};
+	//this fails if the image dimensions are not a multiple of 4
+	let dds = image_dds::dds_from_image(
+		&image,
+		format,
+		image_dds::Quality::Slow,
+		image_dds::Mipmaps::GeneratedAutomatic,
+	)?;
+
+	//write dds
+	let mut dest=PathBuf::from("textures");
+	dest.push(file_thing.file_name());
+	dest.set_extension("dds");
+	let mut writer = std::io::BufWriter::new(std::fs::File::create(dest)?);
+	dds.write(&mut writer)?;
+
+	//move file to processed
+	let mut dest=PathBuf::from("textures/processed");
+	dest.push(file_thing.file_name());
+	std::fs::rename(file_thing.path(), dest)?;
+	Ok(())
+}
+pub fn convert_textures() -> AResult<()>{
+	std::fs::create_dir_all("textures/unprocessed")?;
+	std::fs::create_dir_all("textures/processed")?;
+	let start = std::time::Instant::now();
+	let mut threads=Vec::new();
+	for entry in std::fs::read_dir("textures/unprocessed")? {
+		let file_thing=entry?;
+		threads.push(std::thread::spawn(move ||{
+			let file_name=format!("{:?}",file_thing);
+			let result=convert(file_thing);
+			if let Err(e)=result{
+				println!("error processing file:{:?} error message:{:?}",file_name,e);
+			}
+		}));
+	}
+	let mut i=0;
+	let n_threads=threads.len();
+	for thread in threads{
+		i+=1;
+		if let Err(e)=thread.join(){
+			println!("thread error: {:?}",e);
+		}else{
+			println!("{}/{}",i,n_threads);
+		}
+	}
+	println!("{:?}", start.elapsed());
+	Ok(())
+}
diff --git a/src/main.rs b/src/main.rs
index 927f1d7..e54d7b1 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,8 +1,9 @@
-use std::{collections::HashSet,io::{Read,Seek},path::PathBuf};
-use clap::{Args,Parser,Subcommand};
+mod common;
+mod roblox;
+mod source;
+
+use clap::{Parser,Subcommand};
 use anyhow::Result as AResult;
-use rbx_dom_weak::Instance;
-use strafesnet_deferred_loader::rbxassetid::RobloxAssetId;
 
 #[derive(Parser)]
 #[command(author, version, about, long_about = None)]
@@ -13,714 +14,19 @@ struct Cli {
 }
 
 #[derive(Subcommand)]
-enum Commands {
-	RobloxToSNF(RobloxToSNFSubcommand),
-	SourceToSNF(SourceToSNFSubcommand),
-	DownloadTextures(DownloadTexturesSubcommand),
-	ExtractTextures(ExtractTexturesSubcommand),
-	ConvertTextures(ConvertTexturesSubcommand),
-	VPKContents(VPKContentsSubcommand),
-	BSPContents(BSPContentsSubcommand),
-	DownloadMeshes(DownloadMeshesSubcommand),
-}
-
-#[derive(Args)]
-struct RobloxToSNFSubcommand {
-	#[arg(long)]
-	output_folder:PathBuf,
-	#[arg(required=true)]
-	input_files:Vec<PathBuf>,
-}
-#[derive(Args)]
-struct SourceToSNFSubcommand {
-	#[arg(long)]
-	output_folder:PathBuf,
-	#[arg(required=true)]
-	input_files:Vec<PathBuf>,
-}
-#[derive(Args)]
-struct DownloadTexturesSubcommand {
-	#[arg(long,required=true)]
-	roblox_files:Vec<PathBuf>
-}
-#[derive(Args)]
-struct ExtractTexturesSubcommand {
-	#[arg(long)]
-	bsp_file:PathBuf,
-	#[arg(long)]
-	vpk_dir_files:Vec<PathBuf>
-}
-#[derive(Args)]
-struct ConvertTexturesSubcommand {
-}
-#[derive(Args)]
-struct VPKContentsSubcommand {
-	#[arg(long)]
-	input_file:PathBuf,
-}
-#[derive(Args)]
-struct BSPContentsSubcommand {
-	#[arg(long)]
-	input_file:PathBuf,
-}
-#[derive(Args)]
-struct DownloadMeshesSubcommand {
-	#[arg(long,required=true)]
-	roblox_files:Vec<PathBuf>
+enum Commands{
+	#[command(flatten)]
+	Roblox(roblox::Commands),
+	#[command(flatten)]
+	Source(source::Commands),
+	ConvertTextures,
 }
 
 fn main() -> AResult<()> {
 	let cli = Cli::parse();
-	match cli.command {
-		Commands::RobloxToSNF(subcommand)=>roblox_to_snf(subcommand.input_files,subcommand.output_folder),
-		Commands::SourceToSNF(subcommand)=>source_to_snf(subcommand.input_files,subcommand.output_folder),
-		Commands::DownloadTextures(subcommand)=>download_textures(subcommand.roblox_files),
-		Commands::ExtractTextures(subcommand)=>extract_textures(vec![subcommand.bsp_file],subcommand.vpk_dir_files),
-		Commands::VPKContents(subcommand)=>vpk_contents(subcommand.input_file),
-		Commands::BSPContents(subcommand)=>bsp_contents(subcommand.input_file),
-		Commands::ConvertTextures(_subcommand)=>convert_textures(),
-		Commands::DownloadMeshes(subcommand)=>download_meshes(subcommand.roblox_files),
+	match cli.command{
+		Commands::Roblox(commands)=>commands.run(),
+		Commands::Source(commands)=>commands.run(),
+		Commands::ConvertTextures=>common::convert_textures(),
 	}
 }
-
-enum ReaderType<'a, R:Read+Seek>{
-	GZip(flate2::read::GzDecoder<&'a mut R>),
-	Raw(&'a mut R),
-}
-
-fn maybe_gzip_decode<R:Read+Seek>(input:&mut R)->AResult<ReaderType<R>>{
-	let mut first_2=[0u8;2];
-	if let (Ok(()),Ok(()))=(std::io::Read::read_exact(input, &mut first_2),std::io::Seek::rewind(input)){
-		match &first_2{
-			b"\x1f\x8b"=>Ok(ReaderType::GZip(flate2::read::GzDecoder::new(input))),
-			_=>Ok(ReaderType::Raw(input)),
-		}
-	}else{
-		Err(anyhow::Error::msg("failed to peek"))
-	}
-}
-
-fn load_dom<R:Read+Seek>(input:&mut R)->AResult<rbx_dom_weak::WeakDom>{
-	let mut first_8=[0u8;8];
-	if let (Ok(()),Ok(()))=(std::io::Read::read_exact(input, &mut first_8),std::io::Seek::rewind(input)){
-		match &first_8[0..4]{
-			b"<rob"=>{
-				match &first_8[4..8]{
-					b"lox!"=>rbx_binary::from_reader(input).map_err(anyhow::Error::msg),
-					b"lox "=>rbx_xml::from_reader(input,rbx_xml::DecodeOptions::default()).map_err(anyhow::Error::msg),
-					other=>Err(anyhow::Error::msg(format!("Unknown Roblox file type {:?}",other))),
-				}
-			},
-			_=>Err(anyhow::Error::msg("unsupported file type")),
-		}
-	}else{
-		Err(anyhow::Error::msg("peek failed"))
-	}
-}
-
-/* The ones I'm interested in:
-Beam.Texture
-Decal.Texture
-FileMesh.MeshId
-FileMesh.TextureId
-MaterialVariant.ColorMap
-MaterialVariant.MetalnessMap
-MaterialVariant.NormalMap
-MaterialVariant.RoughnessMap
-MeshPart.MeshId
-MeshPart.TextureID
-ParticleEmitter.Texture
-Sky.MoonTextureId
-Sky.SkyboxBk
-Sky.SkyboxDn
-Sky.SkyboxFt
-Sky.SkyboxLf
-Sky.SkyboxRt
-Sky.SkyboxUp
-Sky.SunTextureId
-SurfaceAppearance.ColorMap
-SurfaceAppearance.MetalnessMap
-SurfaceAppearance.NormalMap
-SurfaceAppearance.RoughnessMap
-SurfaceAppearance.TexturePack
-*/
-fn accumulate_content_id(content_list:&mut HashSet<u64>,object:&Instance,property:&str){
-	if let Some(rbx_dom_weak::types::Variant::Content(content))=object.properties.get(property){
-		if let Ok(asset_id)=AsRef::<str>::as_ref(content).parse::<RobloxAssetId>(){
-			content_list.insert(asset_id.0);
-		}else{
-			println!("Content failed to parse into AssetID: {:?}",content);
-		}
-	}else{
-		println!("property={} does not exist for class={}",object.class.as_str(),property);
-	}
-}
-fn download_textures(paths:Vec<PathBuf>)->AResult<()>{
-	println!("Reading files, this could take a hot minute...");
-	let mut texture_list=HashSet::new();
-	for path in paths{
-		let file=match std::fs::File::open(path.as_path()){
-			Ok(file)=>file,
-			Err(e)=>{
-				println!("file error {e}");
-				continue;
-			}
-		};
-		let mut input=std::io::BufReader::new(file);
-		match load_dom(&mut input){
-			Ok(dom)=>{
-				for object in dom.into_raw().1.into_values(){
-					match object.class.as_str(){
-						"Beam"=>accumulate_content_id(&mut texture_list,&object,"Texture"),
-						"Decal"=>accumulate_content_id(&mut texture_list,&object,"Texture"),
-						"Texture"=>accumulate_content_id(&mut texture_list,&object,"Texture"),
-						"FileMesh"=>accumulate_content_id(&mut texture_list,&object,"TextureId"),
-						"MeshPart"=>accumulate_content_id(&mut texture_list,&object,"TextureID"),
-						"ParticleEmitter"=>accumulate_content_id(&mut texture_list,&object,"Texture"),
-						"Sky"=>{
-							accumulate_content_id(&mut texture_list,&object,"MoonTextureId");
-							accumulate_content_id(&mut texture_list,&object,"SkyboxBk");
-							accumulate_content_id(&mut texture_list,&object,"SkyboxDn");
-							accumulate_content_id(&mut texture_list,&object,"SkyboxFt");
-							accumulate_content_id(&mut texture_list,&object,"SkyboxLf");
-							accumulate_content_id(&mut texture_list,&object,"SkyboxRt");
-							accumulate_content_id(&mut texture_list,&object,"SkyboxUp");
-							accumulate_content_id(&mut texture_list,&object,"SunTextureId");
-						},
-						_=>(),
-					}
-				}
-			},
-			Err(e)=>println!("error loading map {:?}: {:?}",path.file_name(),e),
-		}
-	}
-	let texture_list_string=texture_list.into_iter().map(|id|id.to_string()).collect::<Vec<String>>();
-	println!("Texture list:{:?}",texture_list_string.join(" "));
-	std::fs::create_dir_all("textures/unprocessed")?;
-	let output=std::process::Command::new("asset-tool")
-	.args(["download","--cookie-literal","","--output-folder","textures/unprocessed/"])
-	.args(texture_list_string)
-	.spawn()?
-	.wait_with_output()?;
-	println!("Asset tool exit_success:{}",output.status.success());
-	Ok(())
-}
-fn download_meshes(paths:Vec<PathBuf>)->AResult<()>{
-	println!("Reading files, this could take a hot minute...");
-	let mut mesh_list=HashSet::new();
-	for path in paths{
-		let file=match std::fs::File::open(path.as_path()){
-			Ok(file)=>file,
-			Err(e)=>{
-				println!("file error {e}");
-				continue;
-			}
-		};
-		let mut input=std::io::BufReader::new(file);
-		match load_dom(&mut input){
-			Ok(dom)=>{
-				for object in dom.into_raw().1.into_values(){
-					match object.class.as_str(){
-						"MeshPart"=>accumulate_content_id(&mut mesh_list,&object,"MeshId"),
-						"SpecialMesh"=>accumulate_content_id(&mut mesh_list,&object,"MeshId"),
-						_=>(),
-					}
-				}
-			},
-			Err(e)=>println!("error loading map {:?}: {:?}",path.file_name(),e),
-		}
-	}
-	let mesh_list_string=mesh_list.into_iter().map(|id|id.to_string()).collect::<Vec<String>>();
-	println!("Mesh list:{:?}",mesh_list_string.join(" "));
-	std::fs::create_dir_all("meshes/")?;
-	let output=std::process::Command::new("asset-tool")
-	.args(["download","--cookie-literal","","--output-folder","meshes/"])
-	.args(mesh_list_string)
-	.spawn()?
-	.wait_with_output()?;
-	println!("Asset tool exit_success:{}",output.status.success());
-	Ok(())
-}
-
-fn load_image<R:Read+Seek+std::io::BufRead>(input:&mut R)->AResult<image::DynamicImage>{
-	let mut fourcc=[0u8;4];
-	input.read_exact(&mut fourcc)?;
-	input.rewind()?;
-	match &fourcc{
-		b"\x89PNG"=>Ok(image::load(input,image::ImageFormat::Png)?),
-		b"\xFF\xD8\xFF\xE0"=>Ok(image::load(input,image::ImageFormat::Jpeg)?),//JFIF
-		b"<rob"=>Err(anyhow::Error::msg("Roblox xml garbage is not supported yet")),
-		other=>Err(anyhow::Error::msg(format!("Unknown texture format {:?}",other))),
-	}
-}
-
-fn convert(file_thing:std::fs::DirEntry) -> AResult<()>{
-	let mut input = std::io::BufReader::new(std::fs::File::open(file_thing.path())?);
-
-	let mut extracted_input=None;
-	let image=match maybe_gzip_decode(&mut input){
-		Ok(ReaderType::GZip(mut readable)) => {
-			//gzip
-			let mut extracted:Vec<u8>=Vec::new();
-			//read the entire thing to the end so that I can clone the data and write a png to processed images
-			readable.read_to_end(&mut extracted)?;
-			extracted_input=Some(extracted.clone());
-			load_image(&mut std::io::Cursor::new(extracted))
-		},
-		Ok(ReaderType::Raw(readable)) => load_image(readable),
-		Err(e) => Err(e)?,
-	}?.to_rgba8();//this sets a=255, arcane is actually supposed to look like that
-
-	let format=if image.width()%4!=0||image.height()%4!=0{
-		image_dds::ImageFormat::Rgba8UnormSrgb
-	}else{
-		image_dds::ImageFormat::BC7RgbaUnormSrgb
-	};
-	//this fails if the image dimensions are not a multiple of 4
-	let dds = image_dds::dds_from_image(
-		&image,
-		format,
-		image_dds::Quality::Slow,
-		image_dds::Mipmaps::GeneratedAutomatic,
-	)?;
-
-	//write dds
-	let mut dest=PathBuf::from("textures");
-	dest.push(file_thing.file_name());
-	dest.set_extension("dds");
-	let mut writer = std::io::BufWriter::new(std::fs::File::create(dest)?);
-	dds.write(&mut writer)?;
-
-	if let Some(mut extracted)=extracted_input{
-		//write extracted to processed
-		let mut dest=PathBuf::from("textures/processed");
-		dest.push(file_thing.file_name());
-		std::fs::write(dest, &mut extracted)?;
-		//delete ugly gzip file
-		std::fs::remove_file(file_thing.path())?;
-	}else{
-		//move file to processed
-		let mut dest=PathBuf::from("textures/processed");
-		dest.push(file_thing.file_name());
-		std::fs::rename(file_thing.path(), dest)?;
-	}
-	Ok(())
-}
-fn convert_textures() -> AResult<()>{
-	std::fs::create_dir_all("textures/unprocessed")?;
-	std::fs::create_dir_all("textures/processed")?;
-	let start = std::time::Instant::now();
-	let mut threads=Vec::new();
-	for entry in std::fs::read_dir("textures/unprocessed")? {
-		let file_thing=entry?;
-		threads.push(std::thread::spawn(move ||{
-			let file_name=format!("{:?}",file_thing);
-			let result=convert(file_thing);
-			if let Err(e)=result{
-				println!("error processing file:{:?} error message:{:?}",file_name,e);
-			}
-		}));
-	}
-	let mut i=0;
-	let n_threads=threads.len();
-	for thread in threads{
-		i+=1;
-		if let Err(e)=thread.join(){
-			println!("thread error: {:?}",e);
-		}else{
-			println!("{}/{}",i,n_threads);
-		}
-	}
-	println!("{:?}", start.elapsed());
-	Ok(())
-}
-
-enum VMTContent{
-	VMT(String),
-	VTF(String),
-	Patch(vmt_parser::material::PatchMaterial),
-	Unsupported,//don't want to deal with whatever vmt variant
-	Unresolved,//could not locate a texture because of vmt content
-}
-impl VMTContent{
-	fn vtf(opt:Option<String>)->Self{
-		match opt{
-			Some(s)=>Self::VTF(s),
-			None=>Self::Unresolved,
-		}
-	}
-}
-
-fn get_some_texture(material:vmt_parser::material::Material)->AResult<VMTContent>{
-	//just grab some texture from somewhere for now
-	Ok(match material{
-		vmt_parser::material::Material::LightMappedGeneric(mat)=>VMTContent::vtf(Some(mat.base_texture)),
-		vmt_parser::material::Material::VertexLitGeneric(mat)=>VMTContent::vtf(mat.base_texture.or(mat.decal_texture)),//this just dies if there is none
-		vmt_parser::material::Material::VertexLitGenericDx6(mat)=>VMTContent::vtf(mat.base_texture.or(mat.decal_texture)),
-		vmt_parser::material::Material::UnlitGeneric(mat)=>VMTContent::vtf(mat.base_texture),
-		vmt_parser::material::Material::UnlitTwoTexture(mat)=>VMTContent::vtf(mat.base_texture),
-		vmt_parser::material::Material::Water(mat)=>VMTContent::vtf(mat.base_texture),
-		vmt_parser::material::Material::WorldVertexTransition(mat)=>VMTContent::vtf(Some(mat.base_texture)),
-		vmt_parser::material::Material::EyeRefract(mat)=>VMTContent::vtf(Some(mat.cornea_texture)),
-		vmt_parser::material::Material::SubRect(mat)=>VMTContent::VMT(mat.material),//recursive
-		vmt_parser::material::Material::Sprite(mat)=>VMTContent::vtf(Some(mat.base_texture)),
-		vmt_parser::material::Material::SpriteCard(mat)=>VMTContent::vtf(mat.base_texture),
-		vmt_parser::material::Material::Cable(mat)=>VMTContent::vtf(Some(mat.base_texture)),
-		vmt_parser::material::Material::Refract(mat)=>VMTContent::vtf(mat.base_texture),
-		vmt_parser::material::Material::Modulate(mat)=>VMTContent::vtf(Some(mat.base_texture)),
-		vmt_parser::material::Material::DecalModulate(mat)=>VMTContent::vtf(Some(mat.base_texture)),
-		vmt_parser::material::Material::Sky(mat)=>VMTContent::vtf(Some(mat.base_texture)),
-		vmt_parser::material::Material::Replacements(_mat)=>VMTContent::Unsupported,
-		vmt_parser::material::Material::Patch(mat)=>VMTContent::Patch(mat),
-		_=>return Err(anyhow::Error::msg("vmt failed to parse")),
-	})
-}
-
-fn get_vmt<F:Fn(String)->AResult<Option<Vec<u8>>>>(find_stuff:&F,search_name:String)->AResult<vmt_parser::material::Material>{
-	if let Some(stuff)=find_stuff(search_name)?{
-		//decode vmt and then write
-		let stuff=String::from_utf8(stuff)?;
-		let material=vmt_parser::from_str(stuff.as_str())?;
-		println!("vmt material={:?}",material);
-		return Ok(material);
-	}
-	Err(anyhow::Error::msg("vmt not found"))
-}
-
-fn recursive_vmt_loader<F:Fn(String)->AResult<Option<Vec<u8>>>>(find_stuff:&F,material:vmt_parser::material::Material)->AResult<Option<Vec<u8>>>{
-	match get_some_texture(material)?{
-		VMTContent::VMT(s)=>recursive_vmt_loader(find_stuff,get_vmt(find_stuff,s)?),
-		VMTContent::VTF(s)=>{
-			let mut texture_file_name=PathBuf::from("materials");
-			texture_file_name.push(s);
-			texture_file_name.set_extension("vtf");
-			find_stuff(texture_file_name.into_os_string().into_string().unwrap())
-		},
-		VMTContent::Patch(mat)=>recursive_vmt_loader(find_stuff,
-			mat.resolve(|search_name|{
-				match find_stuff(search_name.to_string())?{
-					Some(bytes)=>Ok(String::from_utf8(bytes)?),
-					None=>Err(anyhow::Error::msg("could not find vmt")),
-				}
-			})?
-		),
-		VMTContent::Unsupported=>{println!("Unsupported vmt");Ok(None)},//print and move on
-		VMTContent::Unresolved=>{println!("Unresolved vmt");Ok(None)},
-	}
-}
-
-fn extract_textures(paths:Vec<PathBuf>,vpk_paths:Vec<PathBuf>)->AResult<()>{
-	std::fs::create_dir_all("textures")?;
-	let vpk_list:Vec<vpk::VPK>=vpk_paths.into_iter().map(|vpk_path|vpk::VPK::read(&vpk_path).expect("vpk file does not exist")).collect();
-	for path in paths{
-		let mut deduplicate=std::collections::HashSet::new();
-		let bsp=vbsp::Bsp::read(std::fs::read(path)?.as_ref())?;
-		for texture in bsp.textures(){
-			deduplicate.insert(PathBuf::from(texture.name()));
-		}
-		//dedupe prop models
-		let mut model_dedupe=std::collections::HashSet::new();
-		for prop in bsp.static_props(){
-			model_dedupe.insert(prop.model());
-		}
-
-		//grab texture names from props
-		for model_name in model_dedupe{
-			//.mdl, .vvd, .dx90.vtx
-			let mut path=PathBuf::from(model_name);
-			let file_name=PathBuf::from(path.file_stem().unwrap());
-			path.pop();
-			path.push(file_name);
-			let mut vvd_path=path.clone();
-			let mut vtx_path=path.clone();
-			vvd_path.set_extension("vvd");
-			vtx_path.set_extension("dx90.vtx");
-			match (bsp.pack.get(model_name),bsp.pack.get(vvd_path.as_os_str().to_str().unwrap()),bsp.pack.get(vtx_path.as_os_str().to_str().unwrap())){
-				(Ok(Some(mdl_file)),Ok(Some(vvd_file)),Ok(Some(vtx_file)))=>{
-					match (vmdl::mdl::Mdl::read(mdl_file.as_ref()),vmdl::vvd::Vvd::read(vvd_file.as_ref()),vmdl::vtx::Vtx::read(vtx_file.as_ref())){
-						(Ok(mdl),Ok(vvd),Ok(vtx))=>{
-							let model=vmdl::Model::from_parts(mdl,vtx,vvd);
-							for texture in model.textures(){
-								for search_path in &texture.search_paths{
-									let mut path=PathBuf::from(search_path.as_str());
-									path.push(texture.name.as_str());
-									deduplicate.insert(path);
-								}
-							}
-						},
-						_=>println!("model_name={} error",model_name),
-					}
-				},
-				_=>println!("no model name={}",model_name),
-			}
-		}
-
-		let pack=&bsp.pack;
-		let vpk_list=&vpk_list;
-		std::thread::scope(move|s|{
-			let mut thread_handles=Vec::new();
-			for texture_name in deduplicate{
-				let mut found_texture=false;
-				//LMAO imagine having to write type names
-				let write_image=|mut stuff,write_file_name|{
-					let image=vtf::from_bytes(&mut stuff)?.highres_image.decode(0)?.to_rgba8();
-
-					let format=if image.width()%4!=0||image.height()%4!=0{
-						image_dds::ImageFormat::Rgba8UnormSrgb
-					}else{
-						image_dds::ImageFormat::BC7RgbaUnormSrgb
-					};
-					//this fails if the image dimensions are not a multiple of 4
-					let dds = image_dds::dds_from_image(
-						&image,
-						format,
-						image_dds::Quality::Slow,
-						image_dds::Mipmaps::GeneratedAutomatic,
-					)?;
-
-					//write dds
-					let mut dest=PathBuf::from("textures");
-					dest.push(write_file_name);
-					dest.set_extension("dds");
-					std::fs::create_dir_all(dest.parent().unwrap())?;
-					let mut writer = std::io::BufWriter::new(std::fs::File::create(dest)?);
-					dds.write(&mut writer)?;
-					Ok::<(),anyhow::Error>(())
-				};
-				let find_stuff=|search_file_name:String|{
-					println!("search_file_name={}",search_file_name);
-					match pack.get(search_file_name.as_str())?{
-						Some(file)=>return Ok(Some(file)),
-						_=>(),
-					}
-					//search pak list
-					for vpk_index in vpk_list{
-						if let Some(vpk_entry)=vpk_index.tree.get(search_file_name.as_str()){
-							return Ok(Some(match vpk_entry.get()?{
-								std::borrow::Cow::Borrowed(bytes)=>bytes.to_vec(),
-								std::borrow::Cow::Owned(bytes)=>bytes,
-							}));
-						}
-					}
-					Ok::<Option<Vec<u8>>,anyhow::Error>(None)
-				};
-				let loader=|texture_name:String|{
-					let mut texture_file_name=PathBuf::from("materials");
-					//lower case
-					let texture_file_name_lowercase=texture_name.to_lowercase();
-					texture_file_name.push(texture_file_name_lowercase.clone());
-					//remove stem and search for both vtf and vmt files
-					let stem=PathBuf::from(texture_file_name.file_stem().unwrap());
-					texture_file_name.pop();
-					texture_file_name.push(stem);
-					//somehow search for both files
-					let mut texture_file_name_vmt=texture_file_name.clone();
-					texture_file_name.set_extension("vtf");
-					texture_file_name_vmt.set_extension("vmt");
-					if let Some(stuff)=find_stuff(texture_file_name.to_string_lossy().to_string())?{
-						return Ok(Some(stuff))
-					}
-					recursive_vmt_loader(&find_stuff,get_vmt(&find_stuff,texture_file_name_vmt.to_string_lossy().to_string())?)
-				};
-				if let Some(stuff)=loader(texture_name.to_string_lossy().to_string())?{
-					found_texture=true;
-					let texture_name=texture_name.clone();
-					thread_handles.push(s.spawn(move||write_image(stuff,texture_name)));
-				}
-				if !found_texture{
-					println!("no data");
-				}
-			}
-			for thread in thread_handles{
-				match thread.join(){
-					Ok(Err(e))=>println!("write error: {:?}",e),
-					Err(e)=>println!("thread error: {:?}",e),
-					Ok(_)=>(),
-				}
-			}
-			Ok::<(),anyhow::Error>(())
-		})?
-	}
-	Ok(())
-}
-
-fn vpk_contents(vpk_path:PathBuf)->AResult<()>{
-	let vpk_index=vpk::VPK::read(&vpk_path)?;
-	for (label,entry) in vpk_index.tree.into_iter(){
-		println!("vpk label={} entry={:?}",label,entry);
-	}
-	Ok(())
-}
-
-fn bsp_contents(path:PathBuf)->AResult<()>{
-	let bsp=vbsp::Bsp::read(std::fs::read(path)?.as_ref())?;
-	for file_name in bsp.pack.into_zip().into_inner().unwrap().file_names(){
-		println!("file_name={:?}",file_name);
-	}
-	Ok(())
-}
-
-#[derive(Debug)]
-#[allow(dead_code)]
-enum ConvertError{
-	IO(std::io::Error),
-	SNFMap(strafesnet_snf::map::Error),
-	RbxLoader(strafesnet_rbx_loader::ReadError),
-	BspLoader(strafesnet_bsp_loader::ReadError),
-}
-impl std::fmt::Display for ConvertError{
-	fn fmt(&self,f:&mut std::fmt::Formatter<'_>)->std::fmt::Result{
-		write!(f,"{self:?}")
-	}
-}
-impl std::error::Error for ConvertError{}
-
-type MapThread=std::thread::JoinHandle<Result<(),ConvertError>>;
-
-fn roblox_to_snf(pathlist:Vec<std::path::PathBuf>,output_folder:PathBuf)->AResult<()>{
-	let n_paths=pathlist.len();
-	let start = std::time::Instant::now();
-	let mut threads:std::collections::VecDeque<MapThread>=std::collections::VecDeque::new();
-	let mut i=0;
-	let mut join_thread=|thread:MapThread|{
-		i+=1;
-		if let Err(e)=thread.join(){
-			println!("thread error: {:?}",e);
-		}else{
-			println!("{}/{}",i,n_paths);
-		}
-	};
-	for path in pathlist{
-		if 32<=threads.len(){
-			join_thread(threads.pop_front().unwrap());
-		}
-		let output_folder=output_folder.clone();
-		threads.push_back(std::thread::spawn(move ||{
-			let model=strafesnet_rbx_loader::read(
-				std::fs::File::open(path.as_path())
-				.map_err(ConvertError::IO)?
-			).map_err(ConvertError::RbxLoader)?;
-
-			let mut place=model.into_place();
-			place.run_scripts();
-
-			let mut loader=strafesnet_deferred_loader::roblox_legacy();
-
-			let (texture_loader,mesh_loader)=loader.get_inner_mut();
-
-			let map_step1=strafesnet_rbx_loader::convert(
-				&place,
-				|name|texture_loader.acquire_render_config_id(name),
-				|name|mesh_loader.acquire_mesh_id(name),
-			);
-
-			let meshpart_meshes=mesh_loader.load_meshes().map_err(ConvertError::IO)?;
-
-			let map_step2=map_step1.add_meshpart_meshes_and_calculate_attributes(
-				meshpart_meshes.into_iter().map(|(mesh_id,loader_model)|
-					(mesh_id,strafesnet_rbx_loader::data::RobloxMeshBytes::new(loader_model.get()))
-				)
-			);
-
-			let (textures,render_configs)=loader.into_render_configs().map_err(ConvertError::IO)?.consume();
-
-			let map=map_step2.add_render_configs_and_textures(
-				render_configs.into_iter(),
-				textures.into_iter().map(|(texture_id,texture)|
-					(texture_id,match texture{
-						strafesnet_deferred_loader::texture::Texture::ImageDDS(data)=>data,
-					})
-				)
-			);
-
-			let mut dest=output_folder.clone();
-			dest.push(path.file_stem().unwrap());
-			dest.set_extension("snfm");
-			let file=std::fs::File::create(dest).map_err(ConvertError::IO)?;
-
-			strafesnet_snf::map::write_map(file,map).map_err(ConvertError::SNFMap)?;
-			Ok(())
-		}));
-	}
-
-	for thread in threads{
-		join_thread(thread);
-	}
-	println!("{:?}", start.elapsed());
-	Ok(())
-}
-
-fn source_to_snf(pathlist:Vec<std::path::PathBuf>,output_folder:PathBuf)->AResult<()>{
-	let n_paths=pathlist.len();
-	let start = std::time::Instant::now();
-	let mut threads:std::collections::VecDeque<MapThread>=std::collections::VecDeque::new();
-	let mut i=0;
-	let mut join_thread=|thread:MapThread|{
-		i+=1;
-		if let Err(e)=thread.join(){
-			println!("thread error: {:?}",e);
-		}else{
-			println!("{}/{}",i,n_paths);
-		}
-	};
-	for path in pathlist{
-		if 32<=threads.len(){
-			join_thread(threads.pop_front().unwrap());
-		}
-		let output_folder=output_folder.clone();
-		threads.push_back(std::thread::spawn(move ||{
-			let bsp=strafesnet_bsp_loader::read(
-				std::fs::File::open(path.as_path())
-				.map_err(ConvertError::IO)?
-			).map_err(ConvertError::BspLoader)?;
-			let mut loader=strafesnet_deferred_loader::source_legacy();
-
-				let (texture_loader,mesh_loader)=loader.get_inner_mut();
-
-				let map_step1=strafesnet_bsp_loader::convert(
-					&bsp,
-					|name|texture_loader.acquire_render_config_id(name),
-					|name|mesh_loader.acquire_mesh_id(name),
-				);
-
-				let prop_meshes=mesh_loader.load_meshes(&bsp.as_ref());
-
-				let map_step2=map_step1.add_prop_meshes(
-					//the type conflagulator 9000
-					prop_meshes.into_iter().map(|(mesh_id,loader_model)|
-						(mesh_id,strafesnet_bsp_loader::data::ModelData{
-							mdl:strafesnet_bsp_loader::data::MdlData::new(loader_model.mdl.get()),
-							vtx:strafesnet_bsp_loader::data::VtxData::new(loader_model.vtx.get()),
-							vvd:strafesnet_bsp_loader::data::VvdData::new(loader_model.vvd.get()),
-						})
-					),
-					|name|texture_loader.acquire_render_config_id(name),
-				);
-
-				let (textures,render_configs)=loader.into_render_configs().map_err(ConvertError::IO)?.consume();
-
-				let map=map_step2.add_render_configs_and_textures(
-					render_configs.into_iter(),
-					textures.into_iter().map(|(texture_id,texture)|
-						(texture_id,match texture{
-							strafesnet_deferred_loader::texture::Texture::ImageDDS(data)=>data,
-						})
-					),
-				);
-
-			let mut dest=output_folder.clone();
-			dest.push(path.file_stem().unwrap());
-			dest.set_extension("snfm");
-			let file=std::fs::File::create(dest).map_err(ConvertError::IO)?;
-
-			strafesnet_snf::map::write_map(file,map).map_err(ConvertError::SNFMap)?;
-			Ok(())
-		}));
-	}
-
-	for thread in threads{
-		join_thread(thread);
-	}
-	println!("{:?}", start.elapsed());
-	Ok(())
-}
diff --git a/src/roblox.rs b/src/roblox.rs
new file mode 100644
index 0000000..53a7a5b
--- /dev/null
+++ b/src/roblox.rs
@@ -0,0 +1,273 @@
+use std::path::PathBuf;
+use std::io::{Read,Seek};
+use std::collections::HashSet;
+use clap::{Args,Subcommand};
+use anyhow::Result as AResult;
+use rbx_dom_weak::Instance;
+use strafesnet_deferred_loader::rbxassetid::RobloxAssetId;
+
+#[derive(Subcommand)]
+pub enum Commands{
+	RobloxToSNF(RobloxToSNFSubcommand),
+	DownloadTextures(DownloadTexturesSubcommand),
+	DownloadMeshes(DownloadMeshesSubcommand),
+}
+
+#[derive(Args)]
+pub struct RobloxToSNFSubcommand {
+	#[arg(long)]
+	output_folder:PathBuf,
+	#[arg(required=true)]
+	input_files:Vec<PathBuf>,
+}
+#[derive(Args)]
+pub struct DownloadTexturesSubcommand {
+	#[arg(long,required=true)]
+	roblox_files:Vec<PathBuf>
+}
+#[derive(Args)]
+pub struct DownloadMeshesSubcommand {
+	#[arg(long,required=true)]
+	roblox_files:Vec<PathBuf>
+}
+
+impl Commands{
+	pub fn run(self)->AResult<()>{
+		match self{
+			Commands::RobloxToSNF(subcommand)=>roblox_to_snf(subcommand.input_files,subcommand.output_folder),
+			Commands::DownloadTextures(subcommand)=>download_textures(subcommand.roblox_files),
+			Commands::DownloadMeshes(subcommand)=>download_meshes(subcommand.roblox_files),
+		}
+	}
+}
+
+fn load_dom<R:Read+Seek>(input:&mut R)->AResult<rbx_dom_weak::WeakDom>{
+	let mut first_8=[0u8;8];
+	if let (Ok(()),Ok(()))=(std::io::Read::read_exact(input, &mut first_8),std::io::Seek::rewind(input)){
+		match &first_8[0..4]{
+			b"<rob"=>{
+				match &first_8[4..8]{
+					b"lox!"=>rbx_binary::from_reader(input).map_err(anyhow::Error::msg),
+					b"lox "=>rbx_xml::from_reader(input,rbx_xml::DecodeOptions::default()).map_err(anyhow::Error::msg),
+					other=>Err(anyhow::Error::msg(format!("Unknown Roblox file type {:?}",other))),
+				}
+			},
+			_=>Err(anyhow::Error::msg("unsupported file type")),
+		}
+	}else{
+		Err(anyhow::Error::msg("peek failed"))
+	}
+}
+
+/* The ones I'm interested in:
+Beam.Texture
+Decal.Texture
+FileMesh.MeshId
+FileMesh.TextureId
+MaterialVariant.ColorMap
+MaterialVariant.MetalnessMap
+MaterialVariant.NormalMap
+MaterialVariant.RoughnessMap
+MeshPart.MeshId
+MeshPart.TextureID
+ParticleEmitter.Texture
+Sky.MoonTextureId
+Sky.SkyboxBk
+Sky.SkyboxDn
+Sky.SkyboxFt
+Sky.SkyboxLf
+Sky.SkyboxRt
+Sky.SkyboxUp
+Sky.SunTextureId
+SurfaceAppearance.ColorMap
+SurfaceAppearance.MetalnessMap
+SurfaceAppearance.NormalMap
+SurfaceAppearance.RoughnessMap
+SurfaceAppearance.TexturePack
+*/
+fn accumulate_content_id(content_list:&mut HashSet<u64>,object:&Instance,property:&str){
+	if let Some(rbx_dom_weak::types::Variant::Content(content))=object.properties.get(property){
+		if let Ok(asset_id)=AsRef::<str>::as_ref(content).parse::<RobloxAssetId>(){
+			content_list.insert(asset_id.0);
+		}else{
+			println!("Content failed to parse into AssetID: {:?}",content);
+		}
+	}else{
+		println!("property={} does not exist for class={}",object.class.as_str(),property);
+	}
+}
+fn download_textures(paths:Vec<PathBuf>)->AResult<()>{
+	println!("Reading files, this could take a hot minute...");
+	let mut texture_list=HashSet::new();
+	for path in paths{
+		let file=match std::fs::File::open(path.as_path()){
+			Ok(file)=>file,
+			Err(e)=>{
+				println!("file error {e}");
+				continue;
+			}
+		};
+		let mut input=std::io::BufReader::new(file);
+		match load_dom(&mut input){
+			Ok(dom)=>{
+				for object in dom.into_raw().1.into_values(){
+					match object.class.as_str(){
+						"Beam"=>accumulate_content_id(&mut texture_list,&object,"Texture"),
+						"Decal"=>accumulate_content_id(&mut texture_list,&object,"Texture"),
+						"Texture"=>accumulate_content_id(&mut texture_list,&object,"Texture"),
+						"FileMesh"=>accumulate_content_id(&mut texture_list,&object,"TextureId"),
+						"MeshPart"=>accumulate_content_id(&mut texture_list,&object,"TextureID"),
+						"ParticleEmitter"=>accumulate_content_id(&mut texture_list,&object,"Texture"),
+						"Sky"=>{
+							accumulate_content_id(&mut texture_list,&object,"MoonTextureId");
+							accumulate_content_id(&mut texture_list,&object,"SkyboxBk");
+							accumulate_content_id(&mut texture_list,&object,"SkyboxDn");
+							accumulate_content_id(&mut texture_list,&object,"SkyboxFt");
+							accumulate_content_id(&mut texture_list,&object,"SkyboxLf");
+							accumulate_content_id(&mut texture_list,&object,"SkyboxRt");
+							accumulate_content_id(&mut texture_list,&object,"SkyboxUp");
+							accumulate_content_id(&mut texture_list,&object,"SunTextureId");
+						},
+						_=>(),
+					}
+				}
+			},
+			Err(e)=>println!("error loading map {:?}: {:?}",path.file_name(),e),
+		}
+	}
+	let texture_list_string=texture_list.into_iter().map(|id|id.to_string()).collect::<Vec<String>>();
+	println!("Texture list:{:?}",texture_list_string.join(" "));
+	std::fs::create_dir_all("textures/unprocessed")?;
+	let output=std::process::Command::new("asset-tool")
+	.args(["download","--cookie-literal","","--output-folder","textures/unprocessed/"])
+	.args(texture_list_string)
+	.spawn()?
+	.wait_with_output()?;
+	println!("Asset tool exit_success:{}",output.status.success());
+	Ok(())
+}
+fn download_meshes(paths:Vec<PathBuf>)->AResult<()>{
+	println!("Reading files, this could take a hot minute...");
+	let mut mesh_list=HashSet::new();
+	for path in paths{
+		let file=match std::fs::File::open(path.as_path()){
+			Ok(file)=>file,
+			Err(e)=>{
+				println!("file error {e}");
+				continue;
+			}
+		};
+		let mut input=std::io::BufReader::new(file);
+		match load_dom(&mut input){
+			Ok(dom)=>{
+				for object in dom.into_raw().1.into_values(){
+					match object.class.as_str(){
+						"MeshPart"=>accumulate_content_id(&mut mesh_list,&object,"MeshId"),
+						"SpecialMesh"=>accumulate_content_id(&mut mesh_list,&object,"MeshId"),
+						_=>(),
+					}
+				}
+			},
+			Err(e)=>println!("error loading map {:?}: {:?}",path.file_name(),e),
+		}
+	}
+	let mesh_list_string=mesh_list.into_iter().map(|id|id.to_string()).collect::<Vec<String>>();
+	println!("Mesh list:{:?}",mesh_list_string.join(" "));
+	std::fs::create_dir_all("meshes/")?;
+	let output=std::process::Command::new("asset-tool")
+	.args(["download","--cookie-literal","","--output-folder","meshes/"])
+	.args(mesh_list_string)
+	.spawn()?
+	.wait_with_output()?;
+	println!("Asset tool exit_success:{}",output.status.success());
+	Ok(())
+}
+
+#[derive(Debug)]
+#[allow(dead_code)]
+enum ConvertError{
+	IO(std::io::Error),
+	SNFMap(strafesnet_snf::map::Error),
+	RbxLoader(strafesnet_rbx_loader::ReadError),
+}
+impl std::fmt::Display for ConvertError{
+	fn fmt(&self,f:&mut std::fmt::Formatter<'_>)->std::fmt::Result{
+		write!(f,"{self:?}")
+	}
+}
+impl std::error::Error for ConvertError{}
+
+type MapThread=std::thread::JoinHandle<Result<(),ConvertError>>;
+
+fn roblox_to_snf(pathlist:Vec<std::path::PathBuf>,output_folder:PathBuf)->AResult<()>{
+	let n_paths=pathlist.len();
+	let start = std::time::Instant::now();
+	let mut threads:std::collections::VecDeque<MapThread>=std::collections::VecDeque::new();
+	let mut i=0;
+	let mut join_thread=|thread:MapThread|{
+		i+=1;
+		if let Err(e)=thread.join(){
+			println!("thread error: {:?}",e);
+		}else{
+			println!("{}/{}",i,n_paths);
+		}
+	};
+	for path in pathlist{
+		if 32<=threads.len(){
+			join_thread(threads.pop_front().unwrap());
+		}
+		let output_folder=output_folder.clone();
+		threads.push_back(std::thread::spawn(move ||{
+			let model=strafesnet_rbx_loader::read(
+				std::fs::File::open(path.as_path())
+				.map_err(ConvertError::IO)?
+			).map_err(ConvertError::RbxLoader)?;
+
+			let mut place=model.into_place();
+			place.run_scripts();
+
+			let mut loader=strafesnet_deferred_loader::roblox_legacy();
+
+			let (texture_loader,mesh_loader)=loader.get_inner_mut();
+
+			let map_step1=strafesnet_rbx_loader::convert(
+				&place,
+				|name|texture_loader.acquire_render_config_id(name),
+				|name|mesh_loader.acquire_mesh_id(name),
+			);
+
+			let meshpart_meshes=mesh_loader.load_meshes().map_err(ConvertError::IO)?;
+
+			let map_step2=map_step1.add_meshpart_meshes_and_calculate_attributes(
+				meshpart_meshes.into_iter().map(|(mesh_id,loader_model)|
+					(mesh_id,strafesnet_rbx_loader::data::RobloxMeshBytes::new(loader_model.get()))
+				)
+			);
+
+			let (textures,render_configs)=loader.into_render_configs().map_err(ConvertError::IO)?.consume();
+
+			let map=map_step2.add_render_configs_and_textures(
+				render_configs.into_iter(),
+				textures.into_iter().map(|(texture_id,texture)|
+					(texture_id,match texture{
+						strafesnet_deferred_loader::texture::Texture::ImageDDS(data)=>data,
+					})
+				)
+			);
+
+			let mut dest=output_folder.clone();
+			dest.push(path.file_stem().unwrap());
+			dest.set_extension("snfm");
+			let file=std::fs::File::create(dest).map_err(ConvertError::IO)?;
+
+			strafesnet_snf::map::write_map(file,map).map_err(ConvertError::SNFMap)?;
+			Ok(())
+		}));
+	}
+
+	for thread in threads{
+		join_thread(thread);
+	}
+	println!("{:?}", start.elapsed());
+	Ok(())
+}
diff --git a/src/source.rs b/src/source.rs
new file mode 100644
index 0000000..1d0f803
--- /dev/null
+++ b/src/source.rs
@@ -0,0 +1,364 @@
+use std::path::PathBuf;
+use clap::{Args,Subcommand};
+use anyhow::Result as AResult;
+
+#[derive(Subcommand)]
+pub enum Commands{
+	SourceToSNF(SourceToSNFSubcommand),
+	ExtractTextures(ExtractTexturesSubcommand),
+	VPKContents(VPKContentsSubcommand),
+	BSPContents(BSPContentsSubcommand),
+}
+
+#[derive(Args)]
+pub struct SourceToSNFSubcommand {
+	#[arg(long)]
+	output_folder:PathBuf,
+	#[arg(required=true)]
+	input_files:Vec<PathBuf>,
+}
+#[derive(Args)]
+pub struct ExtractTexturesSubcommand {
+	#[arg(long)]
+	bsp_file:PathBuf,
+	#[arg(long)]
+	vpk_dir_files:Vec<PathBuf>
+}
+#[derive(Args)]
+pub struct VPKContentsSubcommand {
+	#[arg(long)]
+	input_file:PathBuf,
+}
+#[derive(Args)]
+pub struct BSPContentsSubcommand {
+	#[arg(long)]
+	input_file:PathBuf,
+}
+
+impl Commands{
+	pub fn run(self)->AResult<()>{
+		match self{
+			Commands::SourceToSNF(subcommand)=>source_to_snf(subcommand.input_files,subcommand.output_folder),
+			Commands::ExtractTextures(subcommand)=>extract_textures(vec![subcommand.bsp_file],subcommand.vpk_dir_files),
+			Commands::VPKContents(subcommand)=>vpk_contents(subcommand.input_file),
+			Commands::BSPContents(subcommand)=>bsp_contents(subcommand.input_file),
+		}
+	}
+}
+
+
+enum VMTContent{
+	VMT(String),
+	VTF(String),
+	Patch(vmt_parser::material::PatchMaterial),
+	Unsupported,//don't want to deal with whatever vmt variant
+	Unresolved,//could not locate a texture because of vmt content
+}
+impl VMTContent{
+	fn vtf(opt:Option<String>)->Self{
+		match opt{
+			Some(s)=>Self::VTF(s),
+			None=>Self::Unresolved,
+		}
+	}
+}
+
+fn get_some_texture(material:vmt_parser::material::Material)->AResult<VMTContent>{
+	//just grab some texture from somewhere for now
+	Ok(match material{
+		vmt_parser::material::Material::LightMappedGeneric(mat)=>VMTContent::vtf(Some(mat.base_texture)),
+		vmt_parser::material::Material::VertexLitGeneric(mat)=>VMTContent::vtf(mat.base_texture.or(mat.decal_texture)),//this just dies if there is none
+		vmt_parser::material::Material::VertexLitGenericDx6(mat)=>VMTContent::vtf(mat.base_texture.or(mat.decal_texture)),
+		vmt_parser::material::Material::UnlitGeneric(mat)=>VMTContent::vtf(mat.base_texture),
+		vmt_parser::material::Material::UnlitTwoTexture(mat)=>VMTContent::vtf(mat.base_texture),
+		vmt_parser::material::Material::Water(mat)=>VMTContent::vtf(mat.base_texture),
+		vmt_parser::material::Material::WorldVertexTransition(mat)=>VMTContent::vtf(Some(mat.base_texture)),
+		vmt_parser::material::Material::EyeRefract(mat)=>VMTContent::vtf(Some(mat.cornea_texture)),
+		vmt_parser::material::Material::SubRect(mat)=>VMTContent::VMT(mat.material),//recursive
+		vmt_parser::material::Material::Sprite(mat)=>VMTContent::vtf(Some(mat.base_texture)),
+		vmt_parser::material::Material::SpriteCard(mat)=>VMTContent::vtf(mat.base_texture),
+		vmt_parser::material::Material::Cable(mat)=>VMTContent::vtf(Some(mat.base_texture)),
+		vmt_parser::material::Material::Refract(mat)=>VMTContent::vtf(mat.base_texture),
+		vmt_parser::material::Material::Modulate(mat)=>VMTContent::vtf(Some(mat.base_texture)),
+		vmt_parser::material::Material::DecalModulate(mat)=>VMTContent::vtf(Some(mat.base_texture)),
+		vmt_parser::material::Material::Sky(mat)=>VMTContent::vtf(Some(mat.base_texture)),
+		vmt_parser::material::Material::Replacements(_mat)=>VMTContent::Unsupported,
+		vmt_parser::material::Material::Patch(mat)=>VMTContent::Patch(mat),
+		_=>return Err(anyhow::Error::msg("vmt failed to parse")),
+	})
+}
+
+fn get_vmt<F:Fn(String)->AResult<Option<Vec<u8>>>>(find_stuff:&F,search_name:String)->AResult<vmt_parser::material::Material>{
+	if let Some(stuff)=find_stuff(search_name)?{
+		//decode vmt and then write
+		let stuff=String::from_utf8(stuff)?;
+		let material=vmt_parser::from_str(stuff.as_str())?;
+		println!("vmt material={:?}",material);
+		return Ok(material);
+	}
+	Err(anyhow::Error::msg("vmt not found"))
+}
+
+fn recursive_vmt_loader<F:Fn(String)->AResult<Option<Vec<u8>>>>(find_stuff:&F,material:vmt_parser::material::Material)->AResult<Option<Vec<u8>>>{
+	match get_some_texture(material)?{
+		VMTContent::VMT(s)=>recursive_vmt_loader(find_stuff,get_vmt(find_stuff,s)?),
+		VMTContent::VTF(s)=>{
+			let mut texture_file_name=PathBuf::from("materials");
+			texture_file_name.push(s);
+			texture_file_name.set_extension("vtf");
+			find_stuff(texture_file_name.into_os_string().into_string().unwrap())
+		},
+		VMTContent::Patch(mat)=>recursive_vmt_loader(find_stuff,
+			mat.resolve(|search_name|{
+				match find_stuff(search_name.to_string())?{
+					Some(bytes)=>Ok(String::from_utf8(bytes)?),
+					None=>Err(anyhow::Error::msg("could not find vmt")),
+				}
+			})?
+		),
+		VMTContent::Unsupported=>{println!("Unsupported vmt");Ok(None)},//print and move on
+		VMTContent::Unresolved=>{println!("Unresolved vmt");Ok(None)},
+	}
+}
+
+fn extract_textures(paths:Vec<PathBuf>,vpk_paths:Vec<PathBuf>)->AResult<()>{
+	std::fs::create_dir_all("textures")?;
+	let vpk_list:Vec<vpk::VPK>=vpk_paths.into_iter().map(|vpk_path|vpk::VPK::read(&vpk_path).expect("vpk file does not exist")).collect();
+	for path in paths{
+		let mut deduplicate=std::collections::HashSet::new();
+		let bsp=vbsp::Bsp::read(std::fs::read(path)?.as_ref())?;
+		for texture in bsp.textures(){
+			deduplicate.insert(PathBuf::from(texture.name()));
+		}
+		//dedupe prop models
+		let mut model_dedupe=std::collections::HashSet::new();
+		for prop in bsp.static_props(){
+			model_dedupe.insert(prop.model());
+		}
+
+		//grab texture names from props
+		for model_name in model_dedupe{
+			//.mdl, .vvd, .dx90.vtx
+			let mut path=PathBuf::from(model_name);
+			let file_name=PathBuf::from(path.file_stem().unwrap());
+			path.pop();
+			path.push(file_name);
+			let mut vvd_path=path.clone();
+			let mut vtx_path=path.clone();
+			vvd_path.set_extension("vvd");
+			vtx_path.set_extension("dx90.vtx");
+			match (bsp.pack.get(model_name),bsp.pack.get(vvd_path.as_os_str().to_str().unwrap()),bsp.pack.get(vtx_path.as_os_str().to_str().unwrap())){
+				(Ok(Some(mdl_file)),Ok(Some(vvd_file)),Ok(Some(vtx_file)))=>{
+					match (vmdl::mdl::Mdl::read(mdl_file.as_ref()),vmdl::vvd::Vvd::read(vvd_file.as_ref()),vmdl::vtx::Vtx::read(vtx_file.as_ref())){
+						(Ok(mdl),Ok(vvd),Ok(vtx))=>{
+							let model=vmdl::Model::from_parts(mdl,vtx,vvd);
+							for texture in model.textures(){
+								for search_path in &texture.search_paths{
+									let mut path=PathBuf::from(search_path.as_str());
+									path.push(texture.name.as_str());
+									deduplicate.insert(path);
+								}
+							}
+						},
+						_=>println!("model_name={} error",model_name),
+					}
+				},
+				_=>println!("no model name={}",model_name),
+			}
+		}
+
+		let pack=&bsp.pack;
+		let vpk_list=&vpk_list;
+		std::thread::scope(move|s|{
+			let mut thread_handles=Vec::new();
+			for texture_name in deduplicate{
+				let mut found_texture=false;
+				//LMAO imagine having to write type names
+				let write_image=|mut stuff,write_file_name|{
+					let image=vtf::from_bytes(&mut stuff)?.highres_image.decode(0)?.to_rgba8();
+
+					let format=if image.width()%4!=0||image.height()%4!=0{
+						image_dds::ImageFormat::Rgba8UnormSrgb
+					}else{
+						image_dds::ImageFormat::BC7RgbaUnormSrgb
+					};
+					//this fails if the image dimensions are not a multiple of 4
+					let dds = image_dds::dds_from_image(
+						&image,
+						format,
+						image_dds::Quality::Slow,
+						image_dds::Mipmaps::GeneratedAutomatic,
+					)?;
+
+					//write dds
+					let mut dest=PathBuf::from("textures");
+					dest.push(write_file_name);
+					dest.set_extension("dds");
+					std::fs::create_dir_all(dest.parent().unwrap())?;
+					let mut writer = std::io::BufWriter::new(std::fs::File::create(dest)?);
+					dds.write(&mut writer)?;
+					Ok::<(),anyhow::Error>(())
+				};
+				let find_stuff=|search_file_name:String|{
+					println!("search_file_name={}",search_file_name);
+					match pack.get(search_file_name.as_str())?{
+						Some(file)=>return Ok(Some(file)),
+						_=>(),
+					}
+					//search pak list
+					for vpk_index in vpk_list{
+						if let Some(vpk_entry)=vpk_index.tree.get(search_file_name.as_str()){
+							return Ok(Some(match vpk_entry.get()?{
+								std::borrow::Cow::Borrowed(bytes)=>bytes.to_vec(),
+								std::borrow::Cow::Owned(bytes)=>bytes,
+							}));
+						}
+					}
+					Ok::<Option<Vec<u8>>,anyhow::Error>(None)
+				};
+				let loader=|texture_name:String|{
+					let mut texture_file_name=PathBuf::from("materials");
+					//lower case
+					let texture_file_name_lowercase=texture_name.to_lowercase();
+					texture_file_name.push(texture_file_name_lowercase.clone());
+					//remove stem and search for both vtf and vmt files
+					let stem=PathBuf::from(texture_file_name.file_stem().unwrap());
+					texture_file_name.pop();
+					texture_file_name.push(stem);
+					//somehow search for both files
+					let mut texture_file_name_vmt=texture_file_name.clone();
+					texture_file_name.set_extension("vtf");
+					texture_file_name_vmt.set_extension("vmt");
+					if let Some(stuff)=find_stuff(texture_file_name.to_string_lossy().to_string())?{
+						return Ok(Some(stuff))
+					}
+					recursive_vmt_loader(&find_stuff,get_vmt(&find_stuff,texture_file_name_vmt.to_string_lossy().to_string())?)
+				};
+				if let Some(stuff)=loader(texture_name.to_string_lossy().to_string())?{
+					found_texture=true;
+					let texture_name=texture_name.clone();
+					thread_handles.push(s.spawn(move||write_image(stuff,texture_name)));
+				}
+				if !found_texture{
+					println!("no data");
+				}
+			}
+			for thread in thread_handles{
+				match thread.join(){
+					Ok(Err(e))=>println!("write error: {:?}",e),
+					Err(e)=>println!("thread error: {:?}",e),
+					Ok(_)=>(),
+				}
+			}
+			Ok::<(),anyhow::Error>(())
+		})?
+	}
+	Ok(())
+}
+
+fn vpk_contents(vpk_path:PathBuf)->AResult<()>{
+	let vpk_index=vpk::VPK::read(&vpk_path)?;
+	for (label,entry) in vpk_index.tree.into_iter(){
+		println!("vpk label={} entry={:?}",label,entry);
+	}
+	Ok(())
+}
+
+fn bsp_contents(path:PathBuf)->AResult<()>{
+	let bsp=vbsp::Bsp::read(std::fs::read(path)?.as_ref())?;
+	for file_name in bsp.pack.into_zip().into_inner().unwrap().file_names(){
+		println!("file_name={:?}",file_name);
+	}
+	Ok(())
+}
+
+#[derive(Debug)]
+#[allow(dead_code)]
+enum ConvertError{
+	IO(std::io::Error),
+	SNFMap(strafesnet_snf::map::Error),
+	BspLoader(strafesnet_bsp_loader::ReadError),
+}
+impl std::fmt::Display for ConvertError{
+	fn fmt(&self,f:&mut std::fmt::Formatter<'_>)->std::fmt::Result{
+		write!(f,"{self:?}")
+	}
+}
+impl std::error::Error for ConvertError{}
+
+type MapThread=std::thread::JoinHandle<Result<(),ConvertError>>;
+
+fn source_to_snf(pathlist:Vec<std::path::PathBuf>,output_folder:PathBuf)->AResult<()>{
+	let n_paths=pathlist.len();
+	let start = std::time::Instant::now();
+	let mut threads:std::collections::VecDeque<MapThread>=std::collections::VecDeque::new();
+	let mut i=0;
+	let mut join_thread=|thread:MapThread|{
+		i+=1;
+		if let Err(e)=thread.join(){
+			println!("thread error: {:?}",e);
+		}else{
+			println!("{}/{}",i,n_paths);
+		}
+	};
+	for path in pathlist{
+		if 32<=threads.len(){
+			join_thread(threads.pop_front().unwrap());
+		}
+		let output_folder=output_folder.clone();
+		threads.push_back(std::thread::spawn(move ||{
+			let bsp=strafesnet_bsp_loader::read(
+				std::fs::File::open(path.as_path())
+				.map_err(ConvertError::IO)?
+			).map_err(ConvertError::BspLoader)?;
+			let mut loader=strafesnet_deferred_loader::source_legacy();
+
+				let (texture_loader,mesh_loader)=loader.get_inner_mut();
+
+				let map_step1=strafesnet_bsp_loader::convert(
+					&bsp,
+					|name|texture_loader.acquire_render_config_id(name),
+					|name|mesh_loader.acquire_mesh_id(name),
+				);
+
+				let prop_meshes=mesh_loader.load_meshes(&bsp.as_ref());
+
+				let map_step2=map_step1.add_prop_meshes(
+					//the type conflagulator 9000
+					prop_meshes.into_iter().map(|(mesh_id,loader_model)|
+						(mesh_id,strafesnet_bsp_loader::data::ModelData{
+							mdl:strafesnet_bsp_loader::data::MdlData::new(loader_model.mdl.get()),
+							vtx:strafesnet_bsp_loader::data::VtxData::new(loader_model.vtx.get()),
+							vvd:strafesnet_bsp_loader::data::VvdData::new(loader_model.vvd.get()),
+						})
+					),
+					|name|texture_loader.acquire_render_config_id(name),
+				);
+
+				let (textures,render_configs)=loader.into_render_configs().map_err(ConvertError::IO)?.consume();
+
+				let map=map_step2.add_render_configs_and_textures(
+					render_configs.into_iter(),
+					textures.into_iter().map(|(texture_id,texture)|
+						(texture_id,match texture{
+							strafesnet_deferred_loader::texture::Texture::ImageDDS(data)=>data,
+						})
+					),
+				);
+
+			let mut dest=output_folder.clone();
+			dest.push(path.file_stem().unwrap());
+			dest.set_extension("snfm");
+			let file=std::fs::File::create(dest).map_err(ConvertError::IO)?;
+
+			strafesnet_snf::map::write_map(file,map).map_err(ConvertError::SNFMap)?;
+			Ok(())
+		}));
+	}
+
+	for thread in threads{
+		join_thread(thread);
+	}
+	println!("{:?}", start.elapsed());
+	Ok(())
+}