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A bevy engine plugin for loading magica voxel files directly in bevy as usable meshes.

License: MIT License

Rust 100.00%

bevy-engine magicavoxel voxel bevy asset-loader

bevy_vox_mesh's Introduction

`bevy_vox_mesh`

A plugin for the bevy engine which allows loading magica voxel .vox files directly into usable meshes. This uses mesh vertex coloring.

Bevy compatibility

Bevy version	Plugin version
0.5	0.1, 0.2
0.8	0.4
0.9	0.5
0.10	0.6
0.11	0.7, 0.7.1
0.12	0.8

Usage

use bevy::prelude::*;
use bevy_vox_mesh::VoxMeshPlugin;
use std::f32::consts::PI;

fn main() {
    App::default()
        .add_plugins(DefaultPlugins)
        .add_plugin(VoxMeshPlugin::default())
        .add_startup_system(setup)
        .run();
}

fn setup(
    mut commands: Commands,
    mut meshes: ResMut<Assets<Mesh>>,
    mut stdmats: ResMut<Assets<StandardMaterial>>,
    assets: Res<AssetServer>,
) {
    commands.spawn(Camera3dBundle {
        transform: Transform::from_xyz(-2.0, 2.5, 5.0).looking_at(Vec3::ZERO, Vec3::Y),
        ..Default::default()
    });

    commands.spawn(PbrBundle {
        transform: Transform::from_scale((0.01, 0.01, 0.01).into())
            * Transform::from_rotation(Quat::from_axis_angle(Vec3::Y, PI)),
        mesh: assets.load("chicken.vox"),
        material: stdmats.add(Color::rgb(1., 1., 1.).into()),
        ..Default::default()
    });
}

Take a look in the examples/ directory for a complete working example.

Acknowledgements

This asset loader is powered by the awesome block-mesh-rs crate.

Ported to bevy 0.12.0 thanks to @baranyildirim.

bevy_vox_mesh's People

Contributors

Stargazers

Watchers

Forkers

arc-blroth zzhgithub baranyildirim utsira

bevy_vox_mesh's Issues

Models are flipped on the x-axis

If you compare how an asymmetrical model appears in MV with Bevy, when loading via bevy_vox_mesh, the model is flipped on the x axis.

eg: the monu1 model that ships with MagicaVoxel as viewed in MV:

Same model in bevy:

I believe the fix for this is to change the linearisation in voxel.rs lines 35-37 to:

        let index =
            model_shape.linearize([model.size.x - voxel.x as u32, voxel.z as u32 + 1, voxel.y as u32 + 1])
                as usize;

this seems like the right place to flip the x axis, as this is where the Y and Z axes get swapped

.Vox Meshes are imported offset within large blank mesh

In the "basic" example, if you spawn a cube at the same location as a .vox model, it appears that the .vox model is imported within a larger shape, but is positioned at one of the corners of the invisible shape. If you rotate the transform of the .vox mesh, it rotates around the center point of the invisible shape.

Vox Color light.

Loaded mesh shifted

Light gray voxel is loaded from ".vox" file with Transform::from_translation(Vec3::ZERO). But in fact it located at (1,1,1)

Migrate to bevy 0.10

Update dot_vox version

Add an example illustrating loading multiple objects from a file

It would be great to add an example load .vox with multiple objects.

Maybe it will be useful for someone:
The firsts mesh: asset_server.load("path/to/vox/name.vox"),
The second mesh: asset_server.load("path/to/vox/name.vox#model1"),
The third mesh: asset_server.load("path/to/vox/name.vox#model2"),

Port basic render example to bevy 0.6

So that i can publish the rewrite (a788efb) along with the upgrade to bevy 0.6

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