1#import bevy_pbr::{
2	mesh_functions,
3	skinning,
4	view_transformations::position_world_to_clip,
5}
6
7#import bevy_water::water_functions as water_fn
8
9#import bevy_water::water_bindings
10#ifdef PREPASS_PIPELINE
11#import bevy_pbr::prepass_io::{Vertex, VertexOutput}
12#else
13#import bevy_pbr::forward_io::{Vertex, VertexOutput}
14#endif
15
16@vertex
17fn vertex(vertex: Vertex) -> VertexOutput {
18  var out: VertexOutput;
19
20#ifdef SKINNED
21  var model = skinning::skin_model(vertex.joint_indices, vertex.joint_weights);
22#else
23  var model = mesh_functions::get_world_from_local(vertex.instance_index);
24#endif
25
26#ifdef VERTEX_UVS
27#ifdef SKINNED
28  out.world_normal = skinning::skin_normals(model, vertex.normal);
29#else
30  out.world_normal = mesh_functions::mesh_normal_local_to_world(
31		vertex.normal,
32		vertex.instance_index
33	);
34#endif
35#endif
36
37  let world_position = mesh_functions::mesh_position_local_to_world(model, vec4<f32>(vertex.position, 1.0));
38
39  // Add the wave height to the world position.
40	var height = -0.5;
41#if QUALITY > 2
42  let w_pos = water_fn::uv_to_coord(vertex.uv);
43  height = water_fn::get_wave_height(w_pos);
44#endif
45
46  out.world_position = world_position + vec4<f32>((out.world_normal * height), 0.);
47  out.position = position_world_to_clip(out.world_position.xyz);
48
49#ifdef VERTEX_UVS
50  out.uv = vertex.uv;
51#endif
52
53#ifdef VERTEX_TANGENTS
54  out.world_tangent = mesh_functions::mesh_tangent_local_to_world(
55		model,
56		vertex.tangent,
57		vertex.instance_index
58	);
59#endif
60
61#ifdef VERTEX_COLORS
62  out.color = vertex.color;
63#endif
64
65#ifdef VERTEX_OUTPUT_INSTANCE_INDEX
66	out.instance_index = vertex.instance_index;
67#endif
68
69  return out;
70}