write a cube as IQM by sheer will

.gitignore

@@ -0,0 +1 @@
+/target

Cargo.lock

@@ -0,0 +1,16 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "byteorder"
+version = "1.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
+
+[[package]]
+name = "model_converter"
+version = "0.1.0"
+dependencies = [
+ "byteorder",
+]

Cargo.toml

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+[package]
+name = "model_converter"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+byteorder = "1.4.3"

src/main.rs

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+use std::{
+	fs::File,
+	io::Write,
+};
+
+fn main () {
+	let mut f = File::create ("cube.iqm").unwrap ();
+	
+	f.write_all (b"INTERQUAKEMODEL\0").unwrap ();
+	
+	f.write_all (&(2u32.to_le_bytes ())).unwrap ();
+	
+	// filesize
+	f.write_all (&(0x198u32.to_le_bytes ())).unwrap ();
+	
+	// flags
+	f.write_all (&(0u32.to_le_bytes ())).unwrap ();
+	
+	// num_text, ofs_text
+	f.write_all (&(0u32.to_le_bytes ())).unwrap ();
+	f.write_all (&(0u32.to_le_bytes ())).unwrap ();
+	
+	// num_meshes, ofs_meshes
+	f.write_all (&(1u32.to_le_bytes ())).unwrap ();
+	f.write_all (&(0x7Cu32.to_le_bytes ())).unwrap ();
+	
+	// num_vertexarrays, num_vertexes, ofs_vertexarrays
+	f.write_all (&(1u32.to_le_bytes ())).unwrap ();
+	f.write_all (&(8u32.to_le_bytes ())).unwrap ();
+	f.write_all (&(0x94u32.to_le_bytes ())).unwrap ();
+	
+	// num_triangles, ofs_triangles, ofs_adjacency
+	f.write_all (&(1u32.to_le_bytes ())).unwrap ();
+	f.write_all (&(0x108u32.to_le_bytes ())).unwrap ();
+	f.write_all (&(0u32.to_le_bytes ())).unwrap ();
+	
+	// num_joints, ofs_joints
+	f.write_all (&(0u32.to_le_bytes ())).unwrap ();
+	f.write_all (&(0u32.to_le_bytes ())).unwrap ();
+	
+	// num_poses, ofs_poses
+	f.write_all (&(0u32.to_le_bytes ())).unwrap ();
+	f.write_all (&(0u32.to_le_bytes ())).unwrap ();
+	
+	// num_anims, ofs_anims
+	f.write_all (&(0u32.to_le_bytes ())).unwrap ();
+	f.write_all (&(0u32.to_le_bytes ())).unwrap ();
+	
+	// num_frames, num_framechannels, ofs_frames, ofs_bounds
+	f.write_all (&(0u32.to_le_bytes ())).unwrap ();
+	f.write_all (&(0u32.to_le_bytes ())).unwrap ();
+	f.write_all (&(0u32.to_le_bytes ())).unwrap ();
+	f.write_all (&(0u32.to_le_bytes ())).unwrap ();
+	
+	// num_comment, ofs_comment
+	f.write_all (&(0u32.to_le_bytes ())).unwrap ();
+	f.write_all (&(0u32.to_le_bytes ())).unwrap ();
+	
+	// num_extensions, ofs_extensions
+	f.write_all (&(0u32.to_le_bytes ())).unwrap ();
+	f.write_all (&(0u32.to_le_bytes ())).unwrap ();
+	
+	// Meshes
+	
+	// name
+	f.write_all (&(0u32.to_le_bytes ())).unwrap ();
+	
+	// material
+	f.write_all (&(0u32.to_le_bytes ())).unwrap ();
+	
+	// first_vertex, num_vertexes
+	f.write_all (&(0u32.to_le_bytes ())).unwrap ();
+	f.write_all (&(8u32.to_le_bytes ())).unwrap ();
+	
+	// first_triangle, num_triangles
+	f.write_all (&(0u32.to_le_bytes ())).unwrap ();
+	f.write_all (&(12u32.to_le_bytes ())).unwrap ();
+	
+	// Vertex arrays
+	
+	// type
+	f.write_all (&(0u32.to_le_bytes ())).unwrap ();
+	
+	// flags
+	f.write_all (&(0u32.to_le_bytes ())).unwrap ();
+	
+	// format
+	f.write_all (&(7u32.to_le_bytes ())).unwrap ();
+	
+	// size
+	f.write_all (&(3u32.to_le_bytes ())).unwrap ();
+	
+	// offset
+	f.write_all (&(0xA8u32.to_le_bytes ())).unwrap ();
+	
+	// Vertexes
+	
+	for t in [
+		[-1.0, -1.0, -1.0],
+		[ 1.0, -1.0, -1.0],
+		[ 1.0,  1.0, -1.0],
+		[-1.0,  1.0, -1.0],
+		
+		[-1.0, -1.0,  1.0],
+		[ 1.0, -1.0,  1.0],
+		[ 1.0,  1.0,  1.0],
+		[-1.0,  1.0,  1.0],
+	] {
+		for x in t {
+			f.write_all (&(f32::to_le_bytes (x))).unwrap ();
+		}
+	}
+	
+	// Triangles
+	
+	for t in [
+		[0, 2, 1],
+		[0, 3, 2],
+		
+		[0, 5, 1],
+		[1, 6, 2],
+		[2, 7, 3],
+		[3, 4, 0],
+		
+		[0, 4, 5],
+		[1, 5, 6],
+		[2, 6, 7],
+		[3, 7, 4],
+		
+		[4, 6, 5],
+		[4, 7, 6],
+	] {
+		for x in t {
+			f.write_all (&(u32::to_le_bytes (x))).unwrap ();
+		}
+	}
+}
+
+mod iqm {
+	struct VertexArray {
+		r#type: u32,
+		flags: u32,
+		format: u32,
+		size: u32,
+		offset: u32,
+	}
+	
+	struct Triangle {
+		vertex: [u32; 3],
+	}
+	
+	struct Vertex {
+		position: [f32; 3],
+	}
+}