39 lines
852 B
Rust
39 lines
852 B
Rust
mod bvh_base;
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mod bvh;
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mod bvh4;
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mod light_array;
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mod light_tree;
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mod objects_split;
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use std::cell::Cell;
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use math::{Normal, Point, Vector};
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use shading::surface_closure::SurfaceClosure;
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pub use self::bvh::{BVHNode, BVH};
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pub use self::bvh4::{BVH4, BVH4Node};
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pub use self::light_tree::LightTree;
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pub use self::light_array::LightArray;
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// Track BVH traversal time
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thread_local! {
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pub static ACCEL_TRAV_TIME: Cell<f64> = Cell::new(0.0);
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pub static ACCEL_NODE_RAY_TESTS: Cell<u64> = Cell::new(0);
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}
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pub trait LightAccel {
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/// Returns (index_of_light, selection_pdf, whittled_n)
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fn select(
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&self,
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inc: Vector,
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pos: Point,
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nor: Normal,
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nor_g: Normal,
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sc: &SurfaceClosure,
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time: f32,
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n: f32,
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) -> Option<(usize, f32, f32)>;
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fn approximate_energy(&self) -> f32;
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}
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