nightshade 0.13.2

A cross-platform data-oriented game engine.
Documentation 
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struct VertexInput {
    @location(0) position: vec3<f32>,
    @location(1) normal: vec3<f32>,
    @location(2) tex_coords: vec2<f32>,
};

struct VertexOutput {
    @builtin(position) position: vec4<f32>,
};

struct Uniforms {
    view: mat4x4<f32>,
    projection: mat4x4<f32>,
    snap_resolution: vec2<f32>,
    snap_enabled: u32,
    _padding: u32,
};

struct ModelMatrix {
    model: mat4x4<f32>,
};

struct ObjectData {
    transform_index: u32,
    mesh_id: u32,
    material_id: u32,
    batch_id: u32,
};

@group(0) @binding(0)
var<uniform> uniforms: Uniforms;

@group(1) @binding(0)
var<storage, read> transforms: array<ModelMatrix>;

@group(1) @binding(1)
var<storage, read> objects: array<ObjectData>;

@vertex
fn vs_main(
    in: VertexInput,
    @builtin(instance_index) instance_id: u32
) -> VertexOutput {
    var out: VertexOutput;

    let object = objects[instance_id];
    let model = transforms[object.transform_index].model;
    let world_pos = model * vec4<f32>(in.position, 1.0);
    var clip_pos = uniforms.projection * uniforms.view * world_pos;

    if uniforms.snap_enabled == 1u {
        let resolution = uniforms.snap_resolution;
        let snapped_x = round(clip_pos.x * resolution.x / clip_pos.w) * clip_pos.w / resolution.x;
        let snapped_y = round(clip_pos.y * resolution.y / clip_pos.w) * clip_pos.w / resolution.y;
        clip_pos.x = snapped_x;
        clip_pos.y = snapped_y;
    }

    out.position = clip_pos;

    return out;
}

@fragment
fn fs_main(in: VertexOutput) -> @location(0) f32 {
    return 1.0;
}