feat(render): add scene environment pipeline

src/scene/model/image_model.rs

@@ -349,7 +349,7 @@ impl ImageModel {
 
 /// Decoded RGBA image shared between the raster pipeline and the
 /// unresolved-reference probe. Cheap to clone — the pixels are `Arc`-shared.
-#[derive(Clone)]
+#[derive(Clone, Debug)]
 pub struct DecodedImage {
     pub pixels: Arc<Vec<u8>>,
     pub width: u32,

src/scene/model/visual_style_model.rs

@@ -110,7 +110,7 @@ fn property_color(style: &VisualStyle, index: usize) -> Option<[f32; 4]> {
 }
 
 impl MeshVisualStyle {
-    fn from_dwg(handle: Handle, style: &VisualStyle) -> Self {
+    pub(crate) fn from_dwg(handle: Handle, style: &VisualStyle) -> Self {
         Self {
             full_handle: Some(handle),
             face_handle: None,
@@ -232,6 +232,14 @@ impl MeshVisualStyle {
     }
 }
 
+pub(crate) fn resolve_visual_style_handle(
+    document: &CadDocument,
+    handle: Handle,
+) -> Option<MeshVisualStyle> {
+    visual_style(document, Some(handle))
+        .map(|(handle, style)| MeshVisualStyle::from_dwg(handle, style))
+}
+
 fn visual_style(
     document: &CadDocument,
     handle: Option<Handle>,