embree_rs/
instance.rs

1use std::os::raw;
2
3use cgmath::Matrix4;
4
5use device::Device;
6use geometry::Geometry;
7use scene::{Scene, CommittedScene};
8use sys::*;
9use {BufferType, Format, GeometryType};
10
11pub struct Instance<'a> {
12    device: &'a Device,
13    pub(crate) handle: RTCGeometry,
14    /// The scene being instanced
15    scene: &'a CommittedScene<'a>,
16}
17
18impl<'a> Instance<'a> {
19    pub fn unanimated(device: &'a Device, scene: &'a CommittedScene) -> Instance<'a> {
20        let h = unsafe { rtcNewGeometry(device.handle, GeometryType::INSTANCE) };
21        unsafe {
22            rtcSetGeometryInstancedScene(h, scene.scene.handle);
23        }
24        Instance {
25            device: device,
26            handle: h,
27            scene: scene,
28        }
29    }
30    pub fn set_transform(&mut self, transform: &Matrix4<f32>) {
31        let mat: &[f32; 16] = transform.as_ref();
32        // Will this be fine if we don't set the number of timesteps? Default should be 1?
33        unsafe {
34            rtcSetGeometryTransform(
35                self.handle,
36                0,
37                Format::FLOAT4X4_COLUMN_MAJOR,
38                mat.as_ptr() as *const raw::c_void,
39            );
40        }
41    }
42}
43
44unsafe impl<'a> Sync for Instance<'a> {}
45
embree_rs/instance.rs

embree_rs/
instance.rs
