[nzsl_version("1.0")]
module;

import ViewerData from ScopEngine.ViewerData;

struct VertIn
{
	[location(0)] pos: vec4[f32],
	[location(1)] color: vec4[f32],
	[location(2)] normal: vec4[f32],
	[location(3)] uv: vec2[f32]
}

struct VertOut
{
	[location(0)] color: vec4[f32],
	[location(1)] uv: vec2[f32],
	[location(2)] norm: vec4[f32],
	[location(3)] transformed_norm: vec3[f32],
	[location(4)] frag_position: vec4[f32],
	[location(5)] camera_position: vec3[f32],
	[builtin(position)] pos: vec4[f32]
}

struct ModelData
{
	matrix: mat4[f32],
	normal: mat4[f32],
}

external
{
	[set(0), binding(0)] viewer_data: uniform[ViewerData],
	model: push_constant[ModelData]
}

[entry(vert)]
fn main(input: VertIn) -> VertOut
{
	let output: VertOut;
	output.color = input.color;
	output.uv = input.uv;
	output.norm = normalize(input.normal);
	output.transformed_norm = mat3[f32](model.normal) * output.norm.xyz;
	output.frag_position = model.matrix * vec4[f32](input.pos.xyz, 1.0);
	output.camera_position = viewer_data.camera_position;
	output.pos = viewer_data.view_proj_matrix * output.frag_position;
	return output;
}