ursus_core/render/extract/
meshes.rs

1use crate::render::extract::ExtractSystem;
2use crate::render::world::{ExtractedInstance, ExtractedMeshes, ExtractedRenderSettings, RWorld};
3use ursus_ecs::components::mesh::{MeshHandle, TechniqueHandle};
4use ursus_ecs::components::transform::Transform;
5use ursus_ecs::components::transform_interpolation::TransformInterpolation;
6use ursus_ecs::World;
7use ursus_materials::MaterialHandle;
8
9pub struct MeshExtract;
10impl ExtractSystem for MeshExtract {
11    fn extract(&self, world: &World, r_world: &mut RWorld) {
12        let alpha = r_world.get::<ExtractedRenderSettings>().map(|s| s.interpolation_alpha).unwrap_or(1.0);
13
14        let mut meshes = ExtractedMeshes::default();
15
16        for (mesh, transform, interp, mat, technique, aabb) in world
17            .query::<(
18                &MeshHandle,
19                &Transform,
20                Option<&TransformInterpolation>,
21                Option<&MaterialHandle>,
22                Option<&TechniqueHandle>,
23                Option<&crate::assets::mesh::Aabb>,
24            )>()
25            .iter()
26        {
27            let model = match interp {
28                Some(interp) => interp.interpolate(transform, alpha),
29                None => transform.matrix(),
30            };
31
32            meshes.instances.push(ExtractedInstance {
33                mesh: *mesh,
34                material: mat.copied(),
35                technique: technique.map(|t| t.0.clone()),
36                model,
37                aabb: aabb.copied(),
38            });
39        }
40
41        r_world.insert(meshes);
42    }
43    fn name(&self) -> &'static str {
44        "extract_meshes"
45    }
46}
ursus_core/render/extract/meshes.rs

ursus_core/render/extract/
meshes.rs
