Set sampler descriptors for gltf image URI

crates/bevy_gltf/src/loader.rs

@@ -232,9 +232,14 @@ async fn load_gltf<'a, 'b, 'c>(
     ) {
         let handle = match texture {
             ImageOrPath::Image { label, image } => load_context.add_labeled_asset(label, image),
-            ImageOrPath::Path { path, is_srgb } => {
+            ImageOrPath::Path {
+                path,
+                is_srgb,
+                sampler_descriptor,
+            } => {
                 load_context.load_with_settings(path, move |settings: &mut ImageLoaderSettings| {
                     settings.is_srgb = is_srgb;
+                    settings.sampler_descriptor = sampler_descriptor.clone();
                 })
             }
         };
@@ -620,6 +625,7 @@ async fn load_image<'a, 'b>(
     supported_compressed_formats: CompressedImageFormats,
 ) -> Result<ImageOrPath, GltfError> {
     let is_srgb = !linear_textures.contains(&gltf_texture.index());
+    let sampler_descriptor = ImageSampler::Descriptor(texture_sampler(&gltf_texture));
     match gltf_texture.source().source() {
         gltf::image::Source::View { view, mime_type } => {
             let start = view.offset();
@@ -645,20 +651,23 @@ async fn load_image<'a, 'b>(
             if let Ok(data_uri) = DataUri::parse(uri) {
                 let bytes = data_uri.decode()?;
                 let image_type = ImageType::MimeType(data_uri.mime_type);
+                let mut image = Image::from_buffer(
+                    &bytes,
+                    mime_type.map(ImageType::MimeType).unwrap_or(image_type),
+                    supported_compressed_formats,
+                    is_srgb,
+                )?;
+                image.sampler_descriptor = sampler_descriptor;
                 Ok(ImageOrPath::Image {
-                    image: Image::from_buffer(
-                        &bytes,
-                        mime_type.map(ImageType::MimeType).unwrap_or(image_type),
-                        supported_compressed_formats,
-                        is_srgb,
-                    )?,
+                    image,
                     label: texture_label(&gltf_texture),
                 })
             } else {
                 let image_path = parent_path.join(uri);
                 Ok(ImageOrPath::Path {
                     path: image_path,
                     is_srgb,
+                    sampler_descriptor,
                 })
             }
         }
@@ -1233,8 +1242,15 @@ fn resolve_node_hierarchy(
 }
 
 enum ImageOrPath {
-    Image { image: Image, label: String },
-    Path { path: PathBuf, is_srgb: bool },
+    Image {
+        image: Image,
+        label: String,
+    },
+    Path {
+        path: PathBuf,
+        is_srgb: bool,
+        sampler_descriptor: ImageSampler,
+    },
 }
 
 struct DataUri<'a> {

crates/bevy_render/Cargo.toml

@@ -57,7 +57,8 @@ bevy_tasks = { path = "../bevy_tasks", version = "0.12.0-dev" }
 image = { version = "0.24", default-features = false }
 
 # misc
-wgpu = { version = "0.16.0", features=["naga"] }
+wgpu = { version = "0.16.0", features = ["naga"] }
+wgpu-types = { version = "0.16.0", features = ["trace", "replay"] }
 codespan-reporting = "0.11.0"
 naga = { version = "0.12.0", features = ["wgsl-in"] }
 serde = { version = "1", features = ["derive"] }

crates/bevy_render/src/texture/image.rs

@@ -115,13 +115,13 @@ pub struct Image {
 /// Used in [`Image`], this determines what image sampler to use when rendering. The default setting,
 /// [`ImageSampler::Default`], will read the sampler from the [`ImagePlugin`](super::ImagePlugin) at setup.
 /// Setting this to [`ImageSampler::Descriptor`] will override the global default descriptor for this [`Image`].
-#[derive(Debug, Default, Clone)]
+#[derive(Debug, Default, Clone, Serialize, Deserialize)]
 pub enum ImageSampler {
     /// Default image sampler, derived from the [`ImagePlugin`](super::ImagePlugin) setup.
     #[default]
     Default,
     /// Custom sampler for this image which will override global default.
-    Descriptor(wgpu::SamplerDescriptor<'static>),
+    Descriptor(#[serde(with = "WgpuSamplerDescriptor")] wgpu::SamplerDescriptor<'static>),
 }
 
 impl ImageSampler {
@@ -160,6 +160,25 @@ impl ImageSampler {
     }
 }
 
+/// Proxy type used to implement [`Serialize`] and [`Deserialize`] for [`ImageSampler`].
+#[derive(Serialize, Deserialize)]
+#[serde(remote = "wgpu::SamplerDescriptor<'static>")]
+struct WgpuSamplerDescriptor {
+    #[serde(skip)]
+    label: wgpu::Label<'static>,
+    address_mode_u: wgpu::AddressMode,
+    address_mode_v: wgpu::AddressMode,
+    address_mode_w: wgpu::AddressMode,
+    mag_filter: wgpu::FilterMode,
+    min_filter: wgpu::FilterMode,
+    mipmap_filter: wgpu::FilterMode,
+    lod_min_clamp: f32,
+    lod_max_clamp: f32,
+    compare: Option<wgpu::CompareFunction>,
+    anisotropy_clamp: u16,
+    border_color: Option<wgpu::SamplerBorderColor>,
+}
+
 /// A rendering resource for the default image sampler which is set during renderer
 /// initialization.
 ///

crates/bevy_render/src/texture/image_loader.rs

@@ -8,7 +8,7 @@ use crate::{
     texture::{Image, ImageFormat, ImageType, TextureError},
 };
 
-use super::CompressedImageFormats;
+use super::{CompressedImageFormats, ImageSampler};
 use serde::{Deserialize, Serialize};
 
 /// Loader for images that can be read by the `image` crate.
@@ -57,13 +57,15 @@ pub enum ImageFormatSetting {
 pub struct ImageLoaderSettings {
     pub format: ImageFormatSetting,
     pub is_srgb: bool,
+    pub sampler_descriptor: ImageSampler,
 }
 
 impl Default for ImageLoaderSettings {
     fn default() -> Self {
         Self {
             format: ImageFormatSetting::default(),
             is_srgb: true,
+            sampler_descriptor: ImageSampler::Default,
         }
     }
 }
@@ -87,7 +89,7 @@ impl AssetLoader for ImageLoader {
                 ImageFormatSetting::FromExtension => ImageType::Extension(ext),
                 ImageFormatSetting::Format(format) => ImageType::Format(format),
             };
-            Ok(Image::from_buffer(
+            let mut image = Image::from_buffer(
                 &bytes,
                 image_type,
                 self.supported_compressed_formats,
@@ -96,7 +98,9 @@ impl AssetLoader for ImageLoader {
             .map_err(|err| FileTextureError {
                 error: err,
                 path: format!("{}", load_context.path().display()),
-            })?)
+            })?;
+            image.sampler_descriptor = settings.sampler_descriptor.clone();
+            Ok(image)
         })
     }