12 releases
0.2.9 | Jun 2, 2022 |
---|---|
0.2.8 | Apr 19, 2022 |
0.2.7 | Mar 10, 2022 |
0.2.6 | Feb 8, 2022 |
0.1.1 | Jan 19, 2022 |
#55 in Data formats
44 downloads per month
Used in rs_pbrt
200KB
1.5K
SLoC
blend_info
blend_info 0.2.9
Print some information about a Blender scene file
USAGE:
blend_info [FLAGS] [OPTIONS] <path>
FLAGS:
--dna Print information about DNA of Blender
-h, --help Prints help information
--pointers Print code (e.g. OB, CA, LA, MA, DATA) and pointers
-V, --version Prints version information
OPTIONS:
-n, --struct_name <struct-name> Print information about a particular struct
ARGS:
<path> The path to the file to read
lib.rs
:
blend_info
Print some information about a Blender scene file.
$ ./target/release/blend_info -h
blend_info 0.2.9
Print some information about a Blender scene file
USAGE:
blend_info [FLAGS] [OPTIONS] <path>
FLAGS:
--dna Print information about DNA of Blender
-h, --help Prints help information
--pointers Print code (e.g. OB, CA, LA, MA, DATA) and pointers
-V, --version Prints version information
OPTIONS:
-n, --struct_name <struct-name> Print information about a particular struct
ARGS:
<path> The path to the file to read
Usage as a crate (used in your own code)
use blend_info::{print_pointer, read_dna, use_dna, DnaStrC};
// std
use std::collections::HashMap;
use std::path::PathBuf;
fn main() -> std::io::Result<()> {
println!("use_dna");
// .blend file
let path: PathBuf = PathBuf::from(r"blend/factory_v279.blend");
println!("Try to read {:?} file ...", path);
// read DNA
let mut dna_types_hm: HashMap<String, u16> = HashMap::new();
let mut dna_structs_hm: HashMap<String, DnaStrC> = HashMap::new();
let mut dna_pointers_hm: HashMap<usize, usize> = HashMap::new();
let mut dna_2_type_id: Vec<u16> = Vec::new();
let mut types: Vec<String> = Vec::new();
let mut num_bytes_read: usize = 0;
let print_dna: bool = false;
let print_pointers: bool = true;
read_dna(
print_dna,
print_pointers,
&path,
&mut dna_types_hm,
&mut dna_structs_hm,
&mut dna_pointers_hm,
&mut dna_2_type_id,
&mut types,
&mut num_bytes_read,
)?;
println!("{} bytes read by read_dna() ...", num_bytes_read);
// use DNA
println!(
"Try to read {:?} file again (camera/lamp centric this time) ...",
path
);
let print_dna: bool = true;
let names: Vec<String> = vec!["Camera".to_string(), "Lamp".to_string()];
let mut bytes_read: Vec<u8> = Vec::with_capacity(num_bytes_read);
let mut structs_read: Vec<String> = Vec::with_capacity(names.len());
let mut data_read: Vec<u32> = Vec::with_capacity(names.len());
let mut pointers_read: Vec<(usize, u32)> = Vec::with_capacity(names.len());
use_dna(
print_dna,
&path,
&dna_types_hm,
&dna_structs_hm,
&names,
&dna_2_type_id,
&types,
&mut bytes_read,
&mut structs_read,
&mut data_read,
&mut pointers_read,
)?;
println!("bytes_read: {:?}", bytes_read);
println!("structs_read: {:?}", structs_read);
println!("data_read: {:?}", data_read);
println!("pointers_read: {:?}", pointers_read);
print!("SDNAnr = {}: ", pointers_read[0].1);
print_pointer(pointers_read[0].0, &names[0], &dna_pointers_hm);
print!("SDNAnr = {}: ", pointers_read[1].1);
print_pointer(pointers_read[1].0, &names[1], &dna_pointers_hm);
Ok(())
}
Examples (used as a standalone executable to query .blend files)
DNA
Find Blender version and read all bytes:
$ ./target/release/blend_info --dna blend/factory_v279.blend | less
BLENDER-v279
...
459792 bytes read
$ ./target/release/blend_info --dna blend/factory_v300.blend | less
BLENDER-v300
...
806388 bytes read
Get an idea what structs might be useful and which names are defined:
$ ./target/release/blend_info --dna blend/factory_v279.blend | grep "\[SDNAnr =" -A 1
[SDNAnr = 0]
Link (len=16) {
--
[SDNAnr = 1]
LinkData (len=24) {
...
--
[SDNAnr = 620]
CacheFile (len=1200) {
Structs and their contained data
$ ./target/release/blend_info -n Camera blend/factory_v279.blend
Camera 248
struct Camera { // SDNAnr = 25
ID id; // 120
AnimData *adt; // 8
char type; // 1
char dtx; // 1
short flag; // 2
float passepartalpha; // 4
float clipsta; // 4
float clipend; // 4
float lens; // 4
float ortho_scale; // 4
float drawsize; // 4
float sensor_x; // 4
float sensor_y; // 4
float shiftx; // 4
float shifty; // 4
float YF_dofdist; // 4
Ipo *ipo; // 8
Object *dof_ob; // 8
GPUDOFSettings gpu_dof; // 24
char sensor_fit; // 1
char pad[7]; // 7
CameraStereoSettings stereo; // 24
}; // 248
$ ./target/release/blend_info -n ID blend/factory_v279.blend
ID 120
struct ID { // SDNAnr = 10
void *next; // 8
void *prev; // 8
ID *newid; // 8
Library *lib; // 8
char name[66]; // 66
short flag; // 2
short tag; // 2
short pad_s1; // 2
int us; // 4
int icon_id; // 4
IDProperty *properties; // 8
}; // 120
$ ./target/release/blend_info -n Object.id.name blend/factory_v279.blend
Object.id.name = "OBCamera"
Object.id.name = "OBCube"
Object.id.name = "OBLamp"
$ ./target/release/blend_info -n Camera.id.name blend/factory_v279.blend
Camera.id.name = "CACamera"
$ ./target/release/blend_info -n Lamp.id.name blend/factory_v279.blend
Lamp.id.name = "LALamp"
$ ./target/release/blend_info -n Mesh.id.name blend/factory_v279.blend
Mesh.id.name = "MECube"
$ ./target/release/blend_info -n Camera.lens blend/factory_v279.blend
Camera.lens = 35_f32
$ ./target/release/blend_info -n Object.obmat blend/factory_v279.blend
Object.obmat = [
0.68592066,
0.72767633,
0.0,
0.0,
-0.32401347,
0.30542085,
0.89539564,
0.0,
0.6515582,
-0.6141704,
0.4452714,
0.0,
7.4811316,
-6.50764,
5.343665,
1.0,
]
Object.obmat = [
1.0,
0.0,
0.0,
0.0,
0.0,
1.0,
0.0,
0.0,
0.0,
0.0,
1.0,
0.0,
0.0,
0.0,
0.0,
1.0,
]
Object.obmat = [
-0.29086465,
0.95517117,
-0.05518906,
0.0,
-0.7711008,
-0.19988336,
0.60452473,
0.0,
0.5663932,
0.2183912,
0.79467225,
0.0,
4.0762453,
1.005454,
5.903862,
1.0,
]
Dependencies
~3.5MB
~66K SLoC