render: use WorldTransforms in the renderer

Cargo.lock

@@ -97,9 +97,9 @@ dependencies = [
 
 [[package]]
 name = "anyhow"
-version = "1.0.79"
+version = "1.0.81"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "080e9890a082662b09c1ad45f567faeeb47f22b5fb23895fbe1e651e718e25ca"
+checksum = "0952808a6c2afd1aa8947271f3a60f1a6763c7b912d210184c5149b5cf147247"
 
 [[package]]
 name = "arrayref"
@@ -1865,6 +1865,7 @@ dependencies = [
 name = "lyra-scene"
 version = "0.1.0"
 dependencies = [
+ "anyhow",
  "lyra-ecs",
  "lyra-math",
 ]

examples/testbed/src/main.rs

@@ -1,6 +1,6 @@
 use std::{ptr::NonNull, thread, time::Duration};
 
-use lyra_engine::{assets::gltf::Gltf, change_tracker::Ct, ecs::{query::{Res, View}, system::{Criteria, CriteriaSchedule, IntoSystem}, Component, World}, game::Game, input::{Action, ActionHandler, ActionKind, ActionMapping, ActionMappingId, ActionSource, InputActionPlugin, KeyCode, LayoutId, MouseAxis, MouseInput}, math::{self, Quat, Transform, Vec3}, render::{light::{directional::DirectionalLight, PointLight, SpotLight}, window::{CursorGrabMode, WindowOptions}}, scene::{CameraComponent, FreeFlyCamera, FreeFlyCameraPlugin, ACTLBL_LOOK_LEFT_RIGHT, ACTLBL_LOOK_ROLL, ACTLBL_LOOK_UP_DOWN, ACTLBL_MOVE_FORWARD_BACKWARD, ACTLBL_MOVE_LEFT_RIGHT, ACTLBL_MOVE_UP_DOWN}, DeltaTime};
+use lyra_engine::{assets::gltf::Gltf, change_tracker::Ct, ecs::{query::{Res, View}, system::{Criteria, CriteriaSchedule, IntoSystem}, Component, World}, game::Game, input::{Action, ActionHandler, ActionKind, ActionMapping, ActionMappingId, ActionSource, InputActionPlugin, KeyCode, LayoutId, MouseAxis, MouseInput}, math::{self, Quat, Transform, Vec3}, render::{light::{directional::DirectionalLight, PointLight, SpotLight}, window::{CursorGrabMode, WindowOptions}}, scene::{self, CameraComponent, FreeFlyCamera, FreeFlyCameraPlugin, WorldTransform, ACTLBL_LOOK_LEFT_RIGHT, ACTLBL_LOOK_ROLL, ACTLBL_LOOK_UP_DOWN, ACTLBL_MOVE_FORWARD_BACKWARD, ACTLBL_MOVE_LEFT_RIGHT, ACTLBL_MOVE_UP_DOWN}, DeltaTime};
 use lyra_engine::assets::ResourceManager;
 
 struct FixedTimestep {
@@ -97,6 +97,7 @@ async fn main() {
 
         world.spawn((
             sponza_scene.clone(),
+            WorldTransform::default(),
             Transform::from_xyz(0.0, 0.0, 0.0),
         ));
 
@@ -117,6 +118,15 @@ async fn main() {
         }
 
         {
+            let t = Transform::new(
+                //Vec3::new(-5.0, 1.0, -1.28), 
+                Vec3::new(-5.0, 1.0, -0.0),
+                //Vec3::new(-10.0, 0.94, -0.28), 
+
+                Quat::IDENTITY,
+                Vec3::new(0.25, 0.25, 0.25),
+            );
+
             world.spawn((
                 PointLight {
                     enabled: true,
@@ -125,16 +135,19 @@ async fn main() {
                     range: 2.0,
                     ..Default::default()
                 },
-                Transform::new(
+                WorldTransform::from(t),
-                    //Vec3::new(-5.0, 1.0, -1.28), 
+                t,
-                    Vec3::new(-5.0, 1.0, -0.0),
+                cube_mesh.clone(),
+            ));
+
+            let t = Transform::new(
+                Vec3::new(-3.0, 0.2, -1.5),
+                //Vec3::new(-5.0, 1.0, -0.28),
                 //Vec3::new(-10.0, 0.94, -0.28), 
 
                 Quat::IDENTITY,
-                    Vec3::new(0.25, 0.25, 0.25),
+                Vec3::new(0.15, 0.15, 0.15),
-                ),
+            );
-                cube_mesh.clone(),
-            ));
 
             world.spawn((
                 PointLight {
@@ -144,16 +157,19 @@ async fn main() {
                     range: 1.0,
                     ..Default::default()
                 },
-                Transform::new(
+                WorldTransform::from(t),
-                    Vec3::new(-3.0, 0.2, -1.5),
+                t,
+                cube_mesh.clone(),
+            ));
+
+            let t = Transform::new(
+                Vec3::new(0.0, 0.2, -1.5),
                 //Vec3::new(-5.0, 1.0, -0.28),
                 //Vec3::new(-10.0, 0.94, -0.28), 
 
                 Quat::IDENTITY,
                 Vec3::new(0.15, 0.15, 0.15),
-                ),
+            );
-                cube_mesh.clone(),
-            ));
 
             world.spawn((
                 SpotLight {
@@ -164,14 +180,8 @@ async fn main() {
                     //cutoff: math::Angle::Degrees(45.0),
                     ..Default::default()
                 },
-                Transform::new(
+                WorldTransform::from(t),
-                    Vec3::new(0.0, 0.2, -1.5),
+                t,
-                    //Vec3::new(-5.0, 1.0, -0.28),
-                    //Vec3::new(-10.0, 0.94, -0.28), 
-
-                    Quat::IDENTITY,
-                    Vec3::new(0.15, 0.15, 0.15),
-                ),
                 cube_mesh.clone(),
             ));
         }
@@ -245,6 +255,7 @@ async fn main() {
         };
 
         game.with_system("camera_debug_trigger", sys, &[]);
+        game.with_system("update_world_transforms", scene::system_update_world_transforms, &[]);
     };
 
     let action_handler_plugin = |game: &mut Game| {

lyra-ecs/src/query/filter/or.rs

@@ -1,4 +1,36 @@
-use crate::{query::{AsQuery, Query}, Archetype, World};
+use crate::{query::{AsQuery, Fetch, Query}, Archetype, World};
+
+pub struct OrFetch<'a, Q1: Query, Q2: Query> {
+    left: Option<Q1::Fetch<'a>>,
+    right: Option<Q2::Fetch<'a>>,
+}
+
+impl<'a, Q1: Query, Q2: Query> Fetch<'a> for OrFetch<'a, Q1, Q2> {
+    type Item = (Option<Q1::Item<'a>>, Option<Q2::Item<'a>>);
+
+    fn dangling() -> Self {
+        Self {
+            left: None,
+            right: None,
+        }
+    }
+
+    unsafe fn get_item(&mut self, entity: crate::ArchetypeEntityId) -> Self::Item {
+        let mut res = (None, None);
+
+        if let Some(left) = self.left.as_mut() {
+            let i = left.get_item(entity);
+            res.0 = Some(i);
+        }
+
+        if let Some(right) = self.right.as_mut() {
+            let i = right.get_item(entity);
+            res.1 = Some(i);
+        }
+
+        res
+    }
+}
 
 /// A filter query returning when either `Q1` or `Q2` returns.
 /// 
@@ -25,25 +57,34 @@ use crate::{query::{AsQuery, Query}, Archetype, World};
 pub struct Or<Q1: AsQuery, Q2: AsQuery> {
     left: Q1::Query,
     right: Q2::Query,
+    can_visit_left: bool,
+    can_visit_right: bool,
 }
 
 impl<Q1: AsQuery, Q2: AsQuery> Copy for Or<Q1, Q2> {}
 
 impl<Q1: AsQuery, Q2: AsQuery> Clone for Or<Q1, Q2> {
     fn clone(&self) -> Self {
-        Self { left: self.left.clone(), right: self.right.clone() }
+        Self {
+            left: self.left.clone(),
+            right: self.right.clone(),
+            can_visit_left: self.can_visit_left,
+            can_visit_right: self.can_visit_right,
+        }
     }
 }
 
 impl<Q1: AsQuery, Q2: AsQuery> Query for Or<Q1, Q2> {
-    type Item<'a> = ();
+    type Item<'a> = (Option<<Q1::Query as Query>::Item<'a>>, Option<<Q2::Query as Query>::Item<'a>>);
     
-    type Fetch<'a> = ();
+    type Fetch<'a> = OrFetch<'a, Q1::Query, Q2::Query>;
 
     fn new() -> Self {
         Or {
             left: Q1::Query::new(),
             right: Q2::Query::new(),
+            can_visit_left: false,
+            can_visit_right: false,
         }
     }
 
@@ -51,8 +92,19 @@ impl<Q1: AsQuery, Q2: AsQuery> Query for Or<Q1, Q2> {
         self.left.can_visit_archetype(archetype) || self.right.can_visit_archetype(archetype)
     }
 
-    unsafe fn fetch<'a>(&self, _world: &'a World, _: &'a Archetype, _: crate::Tick) -> Self::Fetch<'a> {
+    unsafe fn fetch<'a>(&self, world: &'a World, archetype: &'a Archetype, tick: crate::Tick) -> Self::Fetch<'a> {
-        ()
+        let mut f = OrFetch::<Q1::Query, Q2::Query>::dangling();
+
+        // TODO: store the result of Self::can_visit_archetype so this isn't ran twice
+        if self.left.can_visit_archetype(archetype) {
+            f.left = Some(self.left.fetch(world, archetype, tick));
+        }
+
+        if self.right.can_visit_archetype(archetype) {
+            f.right = Some(self.right.fetch(world, archetype, tick));
+        }
+
+        f
     }
 }
 

lyra-game/src/render/renderer.rs

@@ -6,11 +6,12 @@ use std::borrow::Cow;
 use glam::Vec3;
 use instant::Instant;
 use itertools::izip;
-use lyra_ecs::query::filter::{Has, Or};
+use lyra_ecs::query::filter::{Has, Not, Or};
+use lyra_ecs::relation::{ChildOf, RelationOriginComponent};
 use lyra_ecs::{Entity, Tick};
 use lyra_ecs::query::{Entities, TickOf};
 use lyra_ecs::World;
-use lyra_scene::SceneGraph;
+use lyra_scene::{SceneGraph, WorldTransform};
 use tracing::{debug, warn};
 use uuid::Uuid;
 use wgpu::{BindGroupLayout, Limits};
@@ -430,17 +431,16 @@ impl BasicRenderer {
 impl Renderer for BasicRenderer {
     fn prepare(&mut self, main_world: &mut World) {
         let last_epoch = main_world.current_tick();
-
+        let now_inst = Instant::now();
         let mut alive_entities = HashSet::new();
         
-        let now_inst = Instant::now();
+        let view = main_world.view_iter::<(Entities, &Transform, TickOf<Transform>,
+            Or<(&MeshHandle, TickOf<MeshHandle>), (&SceneHandle, TickOf<SceneHandle>)>)>();
 
-        let view = main_world.filtered_view_iter::<(Entities, &Transform, TickOf<Transform>), Or<Has<MeshHandle>, Has<SceneHandle>>>();
+        for (entity, transform, transform_epoch, (mesh_pair, scene_pair)) in view {
-        for (entity, transform, transform_epoch) in view {
             alive_entities.insert(entity);
 
-            let mesh_view = main_world.view_one::<(&MeshHandle, TickOf<MeshHandle>)>(entity);
+            if let Some((mesh_han, mesh_epoch)) = mesh_pair {
-            if let Some((mesh_han, mesh_epoch)) = mesh_view.get() {
                 let interop_pos = self.interpolate_transforms(now_inst, last_epoch, entity, &transform, transform_epoch);
 
                 if let Some(mesh) = mesh_han.data_ref() {
@@ -464,17 +464,16 @@ impl Renderer for BasicRenderer {
                 }
             }
 
-            let scene_view = main_world.view_one::<(&SceneHandle, TickOf<SceneHandle>)>(entity);
+            if let Some((scene_han, scene_epoch)) = scene_pair {
-            if let Some((scene_han, scene_epoch)) = scene_view.get() {
-                // TODO: Rendering scenes
-
                 if let Some(scene) = scene_han.data_ref() {
+                    let view = scene.world().view::<(Entities, &mut WorldTransform, &Transform, Not<Has<RelationOriginComponent<ChildOf>>>)>();
+                    lyra_scene::system_update_world_transforms(scene.world(), view).unwrap();
+
                     let interpo_pos = self.interpolate_transforms(now_inst, last_epoch, entity, &transform, transform_epoch);
 
-                    scene.traverse_down(|sw: &World, mesh_han, pos| {
+                    for (mesh_han, pos) in scene.world().view_iter::<(&MeshHandle, &WorldTransform)>() {
-                        if let Some(mesh_han) = sw.view_one::<&MeshHandle>(mesh_han.entity()).get() {
                         if let Some(mesh) = mesh_han.data_ref() {
-                                let mesh_interpo = interpo_pos + pos;
+                            let mesh_interpo = interpo_pos + **pos;
 
                             // if process mesh did not just create a new mesh, and the epoch
                             // shows that the scene has changed, verify that the mesh buffers
@@ -496,7 +495,6 @@ impl Renderer for BasicRenderer {
                             self.render_jobs.push_back(job);
                         }
                     }
-                    });
                 }
             }
         }
@@ -567,7 +565,14 @@ impl Renderer for BasicRenderer {
                     render_pass.set_pipeline(pipeline.get_wgpu_pipeline());
 
                     // get the mesh (containing vertices) and the buffers from storage
-                    let buffers = self.mesh_buffers.get(&job.mesh_uuid).unwrap();
+                    let buffers = self.mesh_buffers.get(&job.mesh_uuid);
+                    if buffers.is_none() {
+                        warn!("Skipping job since its mesh is missing {:?}", job.mesh_uuid);
+                        continue;
+                    }
+                    let buffers = buffers.unwrap();
+                    /* let buffers = self.mesh_buffers.get(&job.mesh_uuid)
+                        .expect("missing render job mesh"); */
 
                     // Bind the optional texture
                     if let Some(tex) = buffers.material.as_ref()

lyra-game/src/scene/mod.rs

@@ -6,3 +6,5 @@ pub use camera::*;
 
 pub mod free_fly_camera;
 pub use free_fly_camera::*;
+
+pub use lyra_scene::*;

lyra-resource/src/gltf/loader.rs

@@ -2,8 +2,9 @@ use std::{ffi::OsStr, path::{Path, PathBuf}, sync::Arc};
 
 use glam::{Quat, Vec3};
 use instant::Instant;
+use lyra_ecs::query;
 use lyra_math::Transform;
-use lyra_scene::{SceneGraph, SceneNode};
+use lyra_scene::{SceneGraph, SceneNode, WorldTransform};
 use thiserror::Error;
 
 use crate::{loader::{LoaderError, PinedBoxLoaderFuture, ResourceLoader}, util, ResHandle, ResourceData, ResourceManager, ResourceStorage};
@@ -76,7 +77,7 @@ impl ModelLoader {
         };
         node.name = gnode.name().map(str::to_string);
 
-        let scene_node = scene.add_node_under(scene_parent, node.transform, ());
+        let scene_node = scene.add_node_under(scene_parent, (WorldTransform::from(node.transform), node.transform));
 
         if let Some(mesh) = gnode.mesh() {
             let mut new_mesh = Mesh::default();
@@ -225,6 +226,10 @@ impl ResourceLoader for ModelLoader {
                     }
                 }
 
+                for en in graph.world().view_iter::<query::Entities>() {
+                    graph.world().view_one::<(&WorldTransform, &Transform)>(en).get().expect("Scene node is missing world and local transform bundle!");
+                }
+
                 let graph = ResHandle::new_ready(Some(path.as_str()), graph);
                 gltf_out.scenes.push(graph);
 
@@ -268,6 +273,7 @@ impl ResourceLoader for ModelLoader {
 #[cfg(test)]
 mod tests {
     use lyra_ecs::{query::Entities, relation::ChildOf};
+    use lyra_scene::WorldTransform;
 
     use crate::tests::busy_wait_resource;
 
@@ -293,7 +299,9 @@ mod tests {
             .data_ref().unwrap();
 
         let mut node = None;
-        scene.traverse_down(|_, no, _tran| {
+        //scene.world().view::<SceneNodeFlag()
+        scene.traverse_down::<_, &WorldTransform>(|_, no, tran| {
+            tran.get().expect("scene node is missing a WorldTransform");
             node = Some(no.clone());
         });
 

lyra-scene/src/world_transform.rs

@@ -22,6 +22,12 @@ impl Deref for WorldTransform {
     }
 }
 
+impl From<Transform> for WorldTransform {
+    fn from(value: Transform) -> Self {
+        Self(value)
+    }
+}
+
 /// A system that updates the [`WorldTransform`]'s for entities and their children.
 /// 
 /// For entities without parents, this will update world transform to match local transform.
@@ -47,7 +53,8 @@ fn recurse_update_trans(world: &World, parent_transform: &WorldTransform, entity
             .relates_to::<ChildOf>(entity)
             .into_iter()
     {
-        world_tran.0 = parent_transform.0 + *tran;
+        world_tran.0 = *tran;
+        world_tran.0.translation = parent_transform.0.translation + tran.translation;
         next_entities.push((en, world_tran.0.clone()));
     }