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Material bind group shader def #20069

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16dbb87
Use naga oil constant for material bind group.
tychedelia Jul 9, 2025
a0121e0
Update release notes.
tychedelia Jul 9, 2025
e74b5be
Ci.
tychedelia Jul 11, 2025
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4 changes: 2 additions & 2 deletions assets/shaders/array_texture.wgsl
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Expand Up @@ -7,8 +7,8 @@
}
#import bevy_core_pipeline::tonemapping::tone_mapping

@group(3) @binding(0) var my_array_texture: texture_2d_array<f32>;
@group(3) @binding(1) var my_array_texture_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(0) var my_array_texture: texture_2d_array<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(1) var my_array_texture_sampler: sampler;

@fragment
fn fragment(
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4 changes: 2 additions & 2 deletions assets/shaders/automatic_instancing.wgsl
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Expand Up @@ -3,8 +3,8 @@
view_transformations::position_world_to_clip
}

@group(3) @binding(0) var texture: texture_2d<f32>;
@group(3) @binding(1) var texture_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(0) var texture: texture_2d<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(1) var texture_sampler: sampler;

struct Vertex {
@builtin(instance_index) instance_index: u32,
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10 changes: 5 additions & 5 deletions assets/shaders/bindless_material.wgsl
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Expand Up @@ -15,12 +15,12 @@ struct MaterialBindings {
}

#ifdef BINDLESS
@group(3) @binding(0) var<storage> materials: array<MaterialBindings>;
@group(3) @binding(10) var<storage> material_color: binding_array<Color>;
@group(#{MATERIAL_BIND_GROUP}) @binding(0) var<storage> materials: array<MaterialBindings>;
@group(#{MATERIAL_BIND_GROUP}) @binding(10) var<storage> material_color: binding_array<Color>;
#else // BINDLESS
@group(3) @binding(0) var<uniform> material_color: Color;
@group(3) @binding(1) var material_color_texture: texture_2d<f32>;
@group(3) @binding(2) var material_color_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(0) var<uniform> material_color: Color;
@group(#{MATERIAL_BIND_GROUP}) @binding(1) var material_color_texture: texture_2d<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(2) var material_color_sampler: sampler;
#endif // BINDLESS

@fragment
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6 changes: 3 additions & 3 deletions assets/shaders/cubemap_unlit.wgsl
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@@ -1,12 +1,12 @@
#import bevy_pbr::forward_io::VertexOutput

#ifdef CUBEMAP_ARRAY
@group(3) @binding(0) var base_color_texture: texture_cube_array<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(0) var base_color_texture: texture_cube_array<f32>;
#else
@group(3) @binding(0) var base_color_texture: texture_cube<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(0) var base_color_texture: texture_cube<f32>;
#endif

@group(3) @binding(1) var base_color_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(1) var base_color_sampler: sampler;

@fragment
fn fragment(
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6 changes: 3 additions & 3 deletions assets/shaders/custom_material.wgsl
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Expand Up @@ -2,9 +2,9 @@
// we can import items from shader modules in the assets folder with a quoted path
#import "shaders/custom_material_import.wgsl"::COLOR_MULTIPLIER

@group(3) @binding(0) var<uniform> material_color: vec4<f32>;
@group(3) @binding(1) var material_color_texture: texture_2d<f32>;
@group(3) @binding(2) var material_color_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(0) var<uniform> material_color: vec4<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(1) var material_color_texture: texture_2d<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(2) var material_color_sampler: sampler;

@fragment
fn fragment(
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6 changes: 3 additions & 3 deletions assets/shaders/custom_material_2d.wgsl
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Expand Up @@ -2,9 +2,9 @@
// we can import items from shader modules in the assets folder with a quoted path
#import "shaders/custom_material_import.wgsl"::COLOR_MULTIPLIER

@group(2) @binding(0) var<uniform> material_color: vec4<f32>;
@group(2) @binding(1) var base_color_texture: texture_2d<f32>;
@group(2) @binding(2) var base_color_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(0) var<uniform> material_color: vec4<f32>;
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MATERIAL_2D

@group(#{MATERIAL_BIND_GROUP}) @binding(1) var base_color_texture: texture_2d<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(2) var base_color_sampler: sampler;

@fragment
fn fragment(mesh: VertexOutput) -> @location(0) vec4<f32> {
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4 changes: 2 additions & 2 deletions assets/shaders/custom_material_screenspace_texture.wgsl
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Expand Up @@ -4,8 +4,8 @@
utils::coords_to_viewport_uv,
}

@group(3) @binding(0) var texture: texture_2d<f32>;
@group(3) @binding(1) var texture_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(0) var texture: texture_2d<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(1) var texture_sampler: sampler;

@fragment
fn fragment(
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2 changes: 1 addition & 1 deletion assets/shaders/custom_vertex_attribute.wgsl
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Expand Up @@ -3,7 +3,7 @@
struct CustomMaterial {
color: vec4<f32>,
};
@group(3) @binding(0) var<uniform> material: CustomMaterial;
@group(#{MATERIAL_BIND_GROUP}) @binding(0) var<uniform> material: CustomMaterial;

struct Vertex {
@builtin(instance_index) instance_index: u32,
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2 changes: 1 addition & 1 deletion assets/shaders/extended_material.wgsl
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Expand Up @@ -19,7 +19,7 @@ struct MyExtendedMaterial {
quantize_steps: u32,
}

@group(3) @binding(100)
@group(#{MATERIAL_BIND_GROUP}) @binding(100)
var<uniform> my_extended_material: MyExtendedMaterial;

@fragment
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10 changes: 5 additions & 5 deletions assets/shaders/extended_material_bindless.wgsl
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Expand Up @@ -42,19 +42,19 @@ struct ExampleBindlessExtendedMaterial {

// The indices of the bindless resources in the bindless resource arrays, for
// the `ExampleBindlessExtension` fields.
@group(3) @binding(100) var<storage> example_extended_material_indices:
@group(#{MATERIAL_BIND_GROUP}) @binding(100) var<storage> example_extended_material_indices:
array<ExampleBindlessExtendedMaterialIndices>;
// An array that holds the `ExampleBindlessExtendedMaterial` plain old data,
// indexed by `ExampleBindlessExtendedMaterialIndices.material`.
@group(3) @binding(101) var<storage> example_extended_material:
@group(#{MATERIAL_BIND_GROUP}) @binding(101) var<storage> example_extended_material:
array<ExampleBindlessExtendedMaterial>;

#else // BINDLESS

// In non-bindless mode, we simply use a uniform for the plain old data.
@group(3) @binding(50) var<uniform> example_extended_material: ExampleBindlessExtendedMaterial;
@group(3) @binding(51) var modulate_texture: texture_2d<f32>;
@group(3) @binding(52) var modulate_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(50) var<uniform> example_extended_material: ExampleBindlessExtendedMaterial;
@group(#{MATERIAL_BIND_GROUP}) @binding(51) var modulate_texture: texture_2d<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(52) var modulate_sampler: sampler;

#endif // BINDLESS

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24 changes: 12 additions & 12 deletions assets/shaders/fallback_image_test.wgsl
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@@ -1,22 +1,22 @@
#import bevy_pbr::forward_io::VertexOutput

@group(3) @binding(0) var test_texture_1d: texture_1d<f32>;
@group(3) @binding(1) var test_texture_1d_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(0) var test_texture_1d: texture_1d<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(1) var test_texture_1d_sampler: sampler;

@group(3) @binding(2) var test_texture_2d: texture_2d<f32>;
@group(3) @binding(3) var test_texture_2d_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(2) var test_texture_2d: texture_2d<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(3) var test_texture_2d_sampler: sampler;

@group(3) @binding(4) var test_texture_2d_array: texture_2d_array<f32>;
@group(3) @binding(5) var test_texture_2d_array_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(4) var test_texture_2d_array: texture_2d_array<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(5) var test_texture_2d_array_sampler: sampler;

@group(3) @binding(6) var test_texture_cube: texture_cube<f32>;
@group(3) @binding(7) var test_texture_cube_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(6) var test_texture_cube: texture_cube<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(7) var test_texture_cube_sampler: sampler;

@group(3) @binding(8) var test_texture_cube_array: texture_cube_array<f32>;
@group(3) @binding(9) var test_texture_cube_array_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(8) var test_texture_cube_array: texture_cube_array<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(9) var test_texture_cube_array_sampler: sampler;

@group(3) @binding(10) var test_texture_3d: texture_3d<f32>;
@group(3) @binding(11) var test_texture_3d_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(10) var test_texture_3d: texture_3d<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(11) var test_texture_3d_sampler: sampler;

@fragment
fn fragment(in: VertexOutput) {}
2 changes: 1 addition & 1 deletion assets/shaders/irradiance_volume_voxel_visualization.wgsl
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Expand Up @@ -12,7 +12,7 @@ struct VoxelVisualizationIrradianceVolumeInfo {
intensity: f32,
}

@group(3) @binding(100)
@group(#{MATERIAL_BIND_GROUP}) @binding(100)
var<uniform> irradiance_volume_info: VoxelVisualizationIrradianceVolumeInfo;

@fragment
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2 changes: 1 addition & 1 deletion assets/shaders/line_material.wgsl
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Expand Up @@ -4,7 +4,7 @@ struct LineMaterial {
color: vec4<f32>,
};

@group(3) @binding(0) var<uniform> material: LineMaterial;
@group(#{MATERIAL_BIND_GROUP}) @binding(0) var<uniform> material: LineMaterial;

@fragment
fn fragment(
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4 changes: 2 additions & 2 deletions assets/shaders/manual_material.wgsl
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@@ -1,7 +1,7 @@
#import bevy_pbr::forward_io::VertexOutput

@group(3) @binding(0) var material_color_texture: texture_2d<f32>;
@group(3) @binding(1) var material_color_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(0) var material_color_texture: texture_2d<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(1) var material_color_sampler: sampler;

@fragment
fn fragment(
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2 changes: 1 addition & 1 deletion assets/shaders/shader_defs.wgsl
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Expand Up @@ -4,7 +4,7 @@ struct CustomMaterial {
color: vec4<f32>,
};

@group(3) @binding(0) var<uniform> material: CustomMaterial;
@group(#{MATERIAL_BIND_GROUP}) @binding(0) var<uniform> material: CustomMaterial;

@fragment
fn fragment(
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2 changes: 1 addition & 1 deletion assets/shaders/show_prepass.wgsl
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Expand Up @@ -11,7 +11,7 @@ struct ShowPrepassSettings {
padding_1: u32,
padding_2: u32,
}
@group(3) @binding(0) var<uniform> settings: ShowPrepassSettings;
@group(#{MATERIAL_BIND_GROUP}) @binding(0) var<uniform> settings: ShowPrepassSettings;

@fragment
fn fragment(
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2 changes: 1 addition & 1 deletion assets/shaders/storage_buffer.wgsl
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Expand Up @@ -3,7 +3,7 @@
view_transformations::position_world_to_clip
}

@group(3) @binding(0) var<storage, read> colors: array<vec4<f32>, 5>;
@group(#{MATERIAL_BIND_GROUP}) @binding(0) var<storage, read> colors: array<vec4<f32>, 5>;

struct Vertex {
@builtin(instance_index) instance_index: u32,
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4 changes: 2 additions & 2 deletions assets/shaders/texture_binding_array.wgsl
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@@ -1,7 +1,7 @@
#import bevy_pbr::forward_io::VertexOutput

@group(3) @binding(0) var textures: binding_array<texture_2d<f32>>;
@group(3) @binding(1) var nearest_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(0) var textures: binding_array<texture_2d<f32>>;
@group(#{MATERIAL_BIND_GROUP}) @binding(1) var nearest_sampler: sampler;
// We can also have array of samplers
// var samplers: binding_array<sampler>;

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6 changes: 3 additions & 3 deletions assets/shaders/water_material.wgsl
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Expand Up @@ -23,9 +23,9 @@ struct WaterSettings {

@group(0) @binding(1) var<uniform> globals: Globals;

@group(3) @binding(100) var water_normals_texture: texture_2d<f32>;
@group(3) @binding(101) var water_normals_sampler: sampler;
@group(3) @binding(102) var<uniform> water_settings: WaterSettings;
@group(#{MATERIAL_BIND_GROUP}) @binding(100) var water_normals_texture: texture_2d<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(101) var water_normals_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(102) var<uniform> water_settings: WaterSettings;

// Samples a single octave of noise and returns the resulting normal.
fn sample_noise_octave(uv: vec2<f32>, strength: f32) -> vec3<f32> {
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2 changes: 1 addition & 1 deletion crates/bevy_pbr/src/decal/forward_decal.wgsl
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Expand Up @@ -10,7 +10,7 @@
}
#import bevy_render::maths::project_onto

@group(3) @binding(200)
@group(#{MATERIAL_BIND_GROUP}) @binding(200)
var<uniform> inv_depth_fade_factor: f32;

struct ForwardDecalInformation {
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14 changes: 13 additions & 1 deletion crates/bevy_pbr/src/material.rs
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Expand Up @@ -58,6 +58,8 @@ use core::{hash::Hash, marker::PhantomData};
use smallvec::SmallVec;
use tracing::error;

pub const MATERIAL_BIND_GROUP_INDEX: usize = 3;

/// Materials are used alongside [`MaterialPlugin`], [`Mesh3d`], and [`MeshMaterial3d`]
/// to spawn entities that are rendered with a specific [`Material`] type. They serve as an easy to use high level
/// way to render [`Mesh3d`] entities with custom shader logic.
Expand Down Expand Up @@ -457,6 +459,16 @@ impl SpecializedMeshPipeline for MaterialPipelineSpecializer {
.pipeline
.mesh_pipeline
.specialize(key.mesh_key, layout)?;
descriptor.vertex.shader_defs.push(ShaderDefVal::UInt(
"MATERIAL_BIND_GROUP".into(),
MATERIAL_BIND_GROUP_INDEX as u32,
));
if let Some(ref mut fragment) = descriptor.fragment {
fragment.shader_defs.push(ShaderDefVal::UInt(
"MATERIAL_BIND_GROUP".into(),
MATERIAL_BIND_GROUP_INDEX as u32,
));
};
if let Some(vertex_shader) = self.properties.get_shader(MaterialVertexShader) {
descriptor.vertex.shader = vertex_shader.clone();
}
Expand Down Expand Up @@ -498,7 +510,7 @@ pub type DrawMaterial = (
SetMeshViewBindGroup<0>,
SetMeshViewBindingArrayBindGroup<1>,
SetMeshBindGroup<2>,
SetMaterialBindGroup<3>,
SetMaterialBindGroup<MATERIAL_BIND_GROUP_INDEX>,
DrawMesh,
);

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66 changes: 33 additions & 33 deletions crates/bevy_pbr/src/render/pbr_bindings.wgsl
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Expand Up @@ -37,53 +37,53 @@ struct StandardMaterialBindings {
specular_tint_sampler: u32, // 30
}

@group(3) @binding(0) var<storage> material_indices: array<StandardMaterialBindings>;
@group(3) @binding(10) var<storage> material_array: array<StandardMaterial>;
@group(#{MATERIAL_BIND_GROUP}) @binding(0) var<storage> material_indices: array<StandardMaterialBindings>;
@group(#{MATERIAL_BIND_GROUP}) @binding(10) var<storage> material_array: array<StandardMaterial>;

#else // BINDLESS

@group(3) @binding(0) var<uniform> material: StandardMaterial;
@group(3) @binding(1) var base_color_texture: texture_2d<f32>;
@group(3) @binding(2) var base_color_sampler: sampler;
@group(3) @binding(3) var emissive_texture: texture_2d<f32>;
@group(3) @binding(4) var emissive_sampler: sampler;
@group(3) @binding(5) var metallic_roughness_texture: texture_2d<f32>;
@group(3) @binding(6) var metallic_roughness_sampler: sampler;
@group(3) @binding(7) var occlusion_texture: texture_2d<f32>;
@group(3) @binding(8) var occlusion_sampler: sampler;
@group(3) @binding(9) var normal_map_texture: texture_2d<f32>;
@group(3) @binding(10) var normal_map_sampler: sampler;
@group(3) @binding(11) var depth_map_texture: texture_2d<f32>;
@group(3) @binding(12) var depth_map_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(0) var<uniform> material: StandardMaterial;
@group(#{MATERIAL_BIND_GROUP}) @binding(1) var base_color_texture: texture_2d<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(2) var base_color_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(3) var emissive_texture: texture_2d<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(4) var emissive_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(5) var metallic_roughness_texture: texture_2d<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(6) var metallic_roughness_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(7) var occlusion_texture: texture_2d<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(8) var occlusion_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(9) var normal_map_texture: texture_2d<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(10) var normal_map_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(11) var depth_map_texture: texture_2d<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(12) var depth_map_sampler: sampler;

#ifdef PBR_ANISOTROPY_TEXTURE_SUPPORTED
@group(3) @binding(13) var anisotropy_texture: texture_2d<f32>;
@group(3) @binding(14) var anisotropy_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(13) var anisotropy_texture: texture_2d<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(14) var anisotropy_sampler: sampler;
#endif // PBR_ANISOTROPY_TEXTURE_SUPPORTED

#ifdef PBR_TRANSMISSION_TEXTURES_SUPPORTED
@group(3) @binding(15) var specular_transmission_texture: texture_2d<f32>;
@group(3) @binding(16) var specular_transmission_sampler: sampler;
@group(3) @binding(17) var thickness_texture: texture_2d<f32>;
@group(3) @binding(18) var thickness_sampler: sampler;
@group(3) @binding(19) var diffuse_transmission_texture: texture_2d<f32>;
@group(3) @binding(20) var diffuse_transmission_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(15) var specular_transmission_texture: texture_2d<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(16) var specular_transmission_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(17) var thickness_texture: texture_2d<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(18) var thickness_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(19) var diffuse_transmission_texture: texture_2d<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(20) var diffuse_transmission_sampler: sampler;
#endif // PBR_TRANSMISSION_TEXTURES_SUPPORTED

#ifdef PBR_MULTI_LAYER_MATERIAL_TEXTURES_SUPPORTED
@group(3) @binding(21) var clearcoat_texture: texture_2d<f32>;
@group(3) @binding(22) var clearcoat_sampler: sampler;
@group(3) @binding(23) var clearcoat_roughness_texture: texture_2d<f32>;
@group(3) @binding(24) var clearcoat_roughness_sampler: sampler;
@group(3) @binding(25) var clearcoat_normal_texture: texture_2d<f32>;
@group(3) @binding(26) var clearcoat_normal_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(21) var clearcoat_texture: texture_2d<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(22) var clearcoat_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(23) var clearcoat_roughness_texture: texture_2d<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(24) var clearcoat_roughness_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(25) var clearcoat_normal_texture: texture_2d<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(26) var clearcoat_normal_sampler: sampler;
#endif // PBR_MULTI_LAYER_MATERIAL_TEXTURES_SUPPORTED

#ifdef PBR_SPECULAR_TEXTURES_SUPPORTED
@group(3) @binding(27) var specular_texture: texture_2d<f32>;
@group(3) @binding(28) var specular_sampler: sampler;
@group(3) @binding(29) var specular_tint_texture: texture_2d<f32>;
@group(3) @binding(30) var specular_tint_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(27) var specular_texture: texture_2d<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(28) var specular_sampler: sampler;
@group(#{MATERIAL_BIND_GROUP}) @binding(29) var specular_tint_texture: texture_2d<f32>;
@group(#{MATERIAL_BIND_GROUP}) @binding(30) var specular_tint_sampler: sampler;
#endif // PBR_SPECULAR_TEXTURES_SUPPORTED

#endif // BINDLESS
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