42_vox/ScopEngine/Assets/Shaders/SkyboxVertex.nzsl

[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)] uvw: vec3[f32],
	[builtin(position)] pos: vec4[f32]
}

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

[entry(vert)]
fn main(input: VertIn) -> VertOut
{
	// Set translation part to zero
	let rotation_matrix = viewer_data.view_matrix;
	rotation_matrix[3].xyz = vec3[f32](0.0, 0.0, 0.0);

	let output: VertOut;
	output.uvw = input.pos.xyz;
	output.uvw.xy *= -1.0;
	output.pos = viewer_data.projection_matrix * rotation_matrix * input.pos;
	return output;
}