42_vox/Resources/Shaders/WaterVertex.nzsl

[nzsl_version("1.0")]
[feature(float64)]
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)] normal: vec4[f32],
	[location(3)] time: f32,
	[builtin(position)] pos: vec4[f32]
}

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

struct CustomData
{
	time: f64,
}

external
{
	[set(0), binding(0)] viewer_data: uniform[ViewerData],
	[set(0), binding(1)] data: uniform[CustomData],
	model: push_constant[ModelData]
}

[entry(vert)]
fn main(input: VertIn) -> VertOut
{
	let position = model.matrix * vec4[f32](input.pos.xyz, 1.0);
	if(input.pos.w == 0.0)
	{
		const speed: f32 = 0.003;
		position.y -= 0.2;
		position.y += (sin(position.x + f32(data.time) * speed) + sin(position.z + f32(data.time) * speed)) * 0.05;
	}

	let output: VertOut;
	output.color = input.color;
	output.uv = input.uv;
	output.normal = input.normal;
	output.time = f32(data.time);
	output.pos = viewer_data.view_proj_matrix * position;
	return output;
}