From 0315b90767ccbaa1dcde11d450976f1dc0c928ba Mon Sep 17 00:00:00 2001
From: metamuffin <metamuffin@disroot.org>
Date: Mon, 17 Feb 2025 20:55:11 +0100
Subject: volume hint in res

---
 shared/src/resources.rs |  9 ++++++---
 world/src/mesh.rs       | 12 ++++++++++++
 2 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/shared/src/resources.rs b/shared/src/resources.rs
index 66ecf7a..76e52f8 100644
--- a/shared/src/resources.rs
+++ b/shared/src/resources.rs
@@ -86,8 +86,9 @@ pub struct MeshPart {
     pub tex_thickness: Option<Resource<Image<'static>>>,
     pub tex_occlusion: Option<Resource<Image<'static>>>,
     pub hint_mirror: Option<()>,
-    pub hint_static: Option<()>,
     pub hint_hide_first_person: Option<()>,
+    pub hint_static: Option<()>,
+    pub hint_volume: Option<()>,
 }
 
 #[derive(Debug, Default, Clone)]
@@ -303,8 +304,9 @@ impl ReadWrite for MeshPart {
         write_kv_opt(w, b"tex_emission", &self.tex_emission)?;
         write_kv_opt(w, b"tex_occlusion", &self.tex_occlusion)?;
         write_kv_opt(w, b"hint_mirror", &self.hint_mirror)?;
-        write_kv_opt(w, b"hint_static", &self.hint_static)?;
         write_kv_opt(w, b"hint_hide_first_person", &self.hint_hide_first_person)?;
+        write_kv_opt(w, b"hint_static", &self.hint_static)?;
+        write_kv_opt(w, b"hint_volume", &self.hint_volume)?;
         Ok(())
     }
     fn read(r: &mut dyn Read) -> Result<Self> {
@@ -342,8 +344,9 @@ impl ReadWrite for MeshPart {
             b"tex_emission" => Ok(s.tex_emission = Some(read_slice(v)?)),
             b"tex_occlusion" => Ok(s.tex_occlusion = Some(read_slice(v)?)),
             b"hint_mirror" => Ok(s.hint_mirror = Some(read_slice(v)?)),
-            b"hint_static" => Ok(s.hint_static = Some(read_slice(v)?)),
             b"hint_hide_first_person" => Ok(s.hint_hide_first_person = Some(read_slice(v)?)),
+            b"hint_static" => Ok(s.hint_static = Some(read_slice(v)?)),
+            b"hint_volume" => Ok(s.hint_volume = Some(read_slice(v)?)),
             x => Ok(warn!(
                 "unknown mesh part key: {:?}",
                 String::from_utf8_lossy(x)
diff --git a/world/src/mesh.rs b/world/src/mesh.rs
index 4067fb8..c4a6372 100644
--- a/world/src/mesh.rs
+++ b/world/src/mesh.rs
@@ -328,6 +328,12 @@ pub fn import_mesh(
             debug!("dispersion is {d}");
         }
 
+        // if node.name() == Some("fog") {
+        //     eprintln!("{:#?}", p.material().volume().is_some());
+        //     eprintln!("{:#?}", p.material().ior());
+        //     eprintln!("{:#?}", p.material().transmission().is_some());
+        // }
+
         let g_attenuation = p.material().volume().map(|v| {
             let ref_dist = v.attenuation_distance();
             let att = Vec3A::from_array(v.attenuation_color().map(
@@ -352,6 +358,11 @@ pub fn import_mesh(
 
         let g_double_sided = bool_to_opt(p.material().double_sided(), "double sided");
 
+        let hint_volume = bool_to_opt(
+            g_attenuation.is_some_and(|a| a.length() > 0.01),
+            "volume hint",
+        );
+
         let hint_hide_first_person = bool_to_opt(
             many_head_bones | vrm.hide_first_person.contains(&node.index()),
             "hide first person hint",
@@ -399,6 +410,7 @@ pub fn import_mesh(
             tex_occlusion,
             hint_hide_first_person,
             hint_mirror,
+            hint_volume,
             // not supported by gltf
             hint_static: None, // TODO Set when instancing
             va_transmission: None,
-- 
cgit v1.2.3-70-g09d2