mirror of
https://github.com/bevyengine/bevy
synced 2024-12-12 14:22:28 +00:00
58 lines
1.9 KiB
WebGPU Shading Language
58 lines
1.9 KiB
WebGPU Shading Language
#import bevy_pbr::{
|
|
forward_io::VertexOutput,
|
|
mesh_view_bindings::view,
|
|
pbr_types::{STANDARD_MATERIAL_FLAGS_DOUBLE_SIDED_BIT, PbrInput, pbr_input_new},
|
|
pbr_functions as fns,
|
|
pbr_bindings,
|
|
}
|
|
#import bevy_core_pipeline::tonemapping::tone_mapping
|
|
|
|
@group(2) @binding(0) var my_array_texture: texture_2d_array<f32>;
|
|
@group(2) @binding(1) var my_array_texture_sampler: sampler;
|
|
|
|
@fragment
|
|
fn fragment(
|
|
@builtin(front_facing) is_front: bool,
|
|
mesh: VertexOutput,
|
|
) -> @location(0) vec4<f32> {
|
|
let layer = i32(mesh.world_position.x) & 0x3;
|
|
|
|
// Prepare a 'processed' StandardMaterial by sampling all textures to resolve
|
|
// the material members
|
|
var pbr_input: PbrInput = pbr_input_new();
|
|
|
|
pbr_input.material.base_color = textureSample(my_array_texture, my_array_texture_sampler, mesh.uv, layer);
|
|
#ifdef VERTEX_COLORS
|
|
pbr_input.material.base_color = pbr_input.material.base_color * mesh.color;
|
|
#endif
|
|
|
|
let double_sided = (pbr_input.material.flags & STANDARD_MATERIAL_FLAGS_DOUBLE_SIDED_BIT) != 0u;
|
|
|
|
pbr_input.frag_coord = mesh.position;
|
|
pbr_input.world_position = mesh.world_position;
|
|
pbr_input.world_normal = fns::prepare_world_normal(
|
|
mesh.world_normal,
|
|
double_sided,
|
|
is_front,
|
|
);
|
|
|
|
pbr_input.is_orthographic = view.clip_from_view[3].w == 1.0;
|
|
|
|
pbr_input.N = normalize(pbr_input.world_normal);
|
|
|
|
#ifdef VERTEX_TANGENTS
|
|
let Nt = textureSampleBias(pbr_bindings::normal_map_texture, pbr_bindings::normal_map_sampler, mesh.uv, view.mip_bias).rgb;
|
|
let TBN = fns::calculate_tbn_mikktspace(mesh.world_normal, mesh.world_tangent);
|
|
pbr_input.N = fns::apply_normal_mapping(
|
|
pbr_input.material.flags,
|
|
TBN,
|
|
double_sided,
|
|
is_front,
|
|
Nt,
|
|
);
|
|
#endif
|
|
|
|
pbr_input.V = fns::calculate_view(mesh.world_position, pbr_input.is_orthographic);
|
|
|
|
return tone_mapping(fns::apply_pbr_lighting(pbr_input), view.color_grading);
|
|
}
|