// Vertex shader

struct VertexInput {
    @location(0) position: vec2<f32>,
    @location(1) tex_coords: vec2<f32>,
}

struct VertexOutput {
    @builtin(position) clip_position: vec4<f32>,
    @location(0) tex_coords: vec2<f32>,
}

@group(0)@binding(0)
var<uniform> model_matrix: mat3x3<f32>;

@vertex
fn vs_main(model: VertexInput) -> VertexOutput {

    var out: VertexOutput;
    out.tex_coords = model.tex_coords;
	out.clip_position 
		= vec4<f32>(model_matrix * vec3<f32>(model.position, 1.0), 1.0);
    return out;
}

// Fragment shader

@group(1)@binding(0)
var t_diffuse: texture_2d<f32>;
@group(1)@binding(1)
var s_diffuse: sampler;

@fragment
fn fs_main(in: VertexOutput) -> @location(0) vec4<f32> {
    return textureSample(t_diffuse, s_diffuse, in.tex_coords);
}