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andy 2025-01-09 17:22:48 -05:00
parent 6ad8530dd2
commit 29d73555ad
1 changed files with 10 additions and 20 deletions
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26
examples/shader/extended_vertex_material.rs
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@ -1,29 +1,26 @@
//! Demonstrates using a custom extension to the `StandardMaterial` to modify the results of the builtin pbr shader. //! Demonstrates using a custom extension to the `StandardMaterial` to modify the results of the builtin pbr shader.
use bevy::pbr::MaterialExtensionKey; use bevy::pbr::MaterialExtensionKey;
use bevy::pbr::{MaterialExtensionPipeline,}; use bevy::pbr::MaterialExtensionPipeline;
use bevy_render::mesh::MeshVertexAttribute;
use bevy_render::mesh::MeshVertexBufferLayoutRef;
use bevy::{ use bevy::{
color::palettes::basic::RED, color::palettes::basic::RED,
pbr::{ExtendedMaterial, MaterialExtension, OpaqueRendererMethod},
pbr::{ ExtendedMaterial, MaterialExtension, OpaqueRendererMethod},
prelude::*, prelude::*,
render::render_resource::*, render::render_resource::*,
}; };
use bevy_render::mesh::MeshVertexAttribute;
use bevy_render::mesh::MeshVertexBufferLayoutRef;
/// This example uses a shader source file from the assets subdirectory /// This example uses a shader source file from the assets subdirectory
//const SHADER_ASSET_PATH: &str = "shaders/extended_material.wgsl"; //const SHADER_ASSET_PATH: &str = "shaders/extended_material.wgsl";
const SHADER_ASSET_PATH: &str = "shaders/extended_vertex_material.wgsl"; const SHADER_ASSET_PATH: &str = "shaders/extended_vertex_material.wgsl";
// A "high" random id should be used for custom attributes to ensure consistent sorting and avoid collisions with other attributes. // A "high" random id should be used for custom attributes to ensure consistent sorting and avoid collisions with other attributes.
// See the MeshVertexAttribute docs for more info. // See the MeshVertexAttribute docs for more info.
const ATTRIBUTE_BLEND_COLOR: MeshVertexAttribute = const ATTRIBUTE_BLEND_COLOR: MeshVertexAttribute =
MeshVertexAttribute::new("BlendColor", 988540917, VertexFormat::Float32x4); MeshVertexAttribute::new("BlendColor", 988540917, VertexFormat::Float32x4);
fn main() { fn main() {
App::new() App::new()
.add_plugins(DefaultPlugins) .add_plugins(DefaultPlugins)
@ -40,8 +37,6 @@ fn setup(
mut meshes: ResMut<Assets<Mesh>>, mut meshes: ResMut<Assets<Mesh>>,
mut materials: ResMut<Assets<ExtendedMaterial<StandardMaterial, MyExtension>>>, mut materials: ResMut<Assets<ExtendedMaterial<StandardMaterial, MyExtension>>>,
) { ) {
let mesh = Mesh::from(Cuboid::default()) let mesh = Mesh::from(Cuboid::default())
// Sets the custom attribute // Sets the custom attribute
.with_inserted_attribute( .with_inserted_attribute(
@ -50,11 +45,9 @@ fn setup(
vec![[1.0, 0.0, 0.0, 1.0]; 24], vec![[1.0, 0.0, 0.0, 1.0]; 24],
); );
// sphere // sphere
commands.spawn(( commands.spawn((
Mesh3d(meshes.add( mesh )), Mesh3d(meshes.add(mesh)),
MeshMaterial3d(materials.add(ExtendedMaterial { MeshMaterial3d(materials.add(ExtendedMaterial {
base: StandardMaterial { base: StandardMaterial {
base_color: RED.into(), base_color: RED.into(),
@ -101,8 +94,6 @@ struct MyExtension {
// so we start from binding slot 100, leaving slots 0-99 for the base material. // so we start from binding slot 100, leaving slots 0-99 for the base material.
#[uniform(100)] #[uniform(100)]
time_ms_elapsed: u32, time_ms_elapsed: u32,
} }
impl MaterialExtension for MyExtension { impl MaterialExtension for MyExtension {
@ -119,11 +110,10 @@ impl MaterialExtension for MyExtension {
} }
fn specialize( fn specialize(
_pipeline: &MaterialExtensionPipeline , _pipeline: &MaterialExtensionPipeline,
descriptor: &mut RenderPipelineDescriptor, descriptor: &mut RenderPipelineDescriptor,
layout: &MeshVertexBufferLayoutRef , layout: &MeshVertexBufferLayoutRef,
_key: MaterialExtensionKey<Self> _key: MaterialExtensionKey<Self>,
) -> Result<(), SpecializedMeshPipelineError> { ) -> Result<(), SpecializedMeshPipelineError> {
let vertex_layout = layout.0.get_layout(&[ let vertex_layout = layout.0.get_layout(&[
Mesh::ATTRIBUTE_POSITION.at_shader_location(0), Mesh::ATTRIBUTE_POSITION.at_shader_location(0),