biome mapping

game/main/src/shader_extensions/chunk_material.rs

@@ -0,0 +1,18 @@
+use bevy::asset::{Asset, Handle};
+use bevy::pbr::MaterialExtension;
+use bevy::reflect::TypePath;
+use bevy::render::render_resource::{AsBindGroup, ShaderRef};
+use bevy::render::texture::Image;
+
+#[derive(Asset, TypePath, AsBindGroup, Debug, Clone)]
+pub struct ChunkMaterial {
+	#[texture(100, dimension = "2d_array")]
+	#[sampler(101)]
+	pub array_texture: Handle<Image>,
+}
+
+impl MaterialExtension for ChunkMaterial {
+	fn fragment_shader() -> ShaderRef {
+		"shaders/world/chunk.wgsl".into()
+	}
+}

game/main/src/shader_extensions/mod.rs

@@ -0,0 +1 @@
+pub mod chunk_material;