Created
July 11, 2022 04:21
-
-
Save sajattack/1f8961294f75df795473bc1231c4ce5b to your computer and use it in GitHub Desktop.
Wavefront OBJ to raw vertices, used for importing models to PSP, very primitive
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
[package] | |
name = "obj2verts" | |
version = "0.1.0" | |
authors = ["Paul Sajna <sajattack@gmail.com>"] | |
edition = "2018" | |
[dependencies] | |
wavefront_obj = "8.0.0" | |
byteorder = "1.3.4" |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
use wavefront_obj::obj::{self, Primitive}; | |
use std::fs; | |
use byteorder::{LittleEndian, WriteBytesExt}; | |
fn main() -> Result<(), std::io::Error> { | |
let obj_string = fs::read_to_string("rustacean1.obj")?; | |
let objects = obj::parse(obj_string).unwrap(); | |
let object = objects.objects[0].clone(); | |
let vertices_indexed = object.vertices; | |
let normals_indexed = object.normals; | |
let mut output_file = fs::File::create("rustacean1.raw")?; | |
for shape in object.geometry[0].shapes.clone() { | |
let primitive = shape.primitive; | |
if let Primitive::Triangle(x, y, z) = primitive { | |
// x.nx | |
output_file.write_f32::<LittleEndian>(normals_indexed[x.2.unwrap()].x as f32)?; | |
// x.ny | |
output_file.write_f32::<LittleEndian>(normals_indexed[x.2.unwrap()].y as f32)?; | |
// x.nz | |
output_file.write_f32::<LittleEndian>(normals_indexed[x.2.unwrap()].z as f32)?; | |
// x.px | |
output_file.write_f32::<LittleEndian>(vertices_indexed[x.0].x as f32)?; | |
// x.py | |
output_file.write_f32::<LittleEndian>(vertices_indexed[x.0].y as f32)?; | |
// x.pz | |
output_file.write_f32::<LittleEndian>(vertices_indexed[x.0].z as f32)?; | |
// y.nx | |
output_file.write_f32::<LittleEndian>(normals_indexed[y.2.unwrap()].x as f32)?; | |
// y.ny | |
output_file.write_f32::<LittleEndian>(normals_indexed[y.2.unwrap()].y as f32)?; | |
// y.nz | |
output_file.write_f32::<LittleEndian>(normals_indexed[y.2.unwrap()].z as f32)?; | |
// y.px | |
output_file.write_f32::<LittleEndian>(vertices_indexed[y.0].x as f32)?; | |
// y.py | |
output_file.write_f32::<LittleEndian>(vertices_indexed[y.0].y as f32)?; | |
// y.pz | |
output_file.write_f32::<LittleEndian>(vertices_indexed[y.0].z as f32)?; | |
// z.nx | |
output_file.write_f32::<LittleEndian>(normals_indexed[z.2.unwrap()].x as f32)?; | |
// z.ny | |
output_file.write_f32::<LittleEndian>(normals_indexed[z.2.unwrap()].y as f32)?; | |
// z.nz | |
output_file.write_f32::<LittleEndian>(normals_indexed[z.2.unwrap()].z as f32)?; | |
// z.px | |
output_file.write_f32::<LittleEndian>(vertices_indexed[z.0].x as f32)?; | |
// z.py | |
output_file.write_f32::<LittleEndian>(vertices_indexed[z.0].y as f32)?; | |
// z.pz | |
output_file.write_f32::<LittleEndian>(vertices_indexed[z.0].z as f32)?; | |
} | |
} | |
Ok(()) | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment