added luisa::lerp(x,y,t)

LuisaGroup · Apr 15, 2024 · 4f4ca9e · 4f4ca9e
1 parent 32739a0
commit 4f4ca9e
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diff --git a/luisa_compute/src/lang/ops/spread.rs b/luisa_compute/src/lang/ops/spread.rs
@@ -245,6 +245,15 @@ where
     x.max_(y)
 }
 
+/// lerp(x, y, t) = x*(1-t) + y*t
+/// the parameter order is the same as in GLSL/HLSL
+pub fn lerp<A,B,T>(x: A, y: B, t: T) -> <A as FloatLerpExpr<B, T>>::Output
+where
+    A: FloatLerpExpr<B, T>,
+{
+    x.lerp(y, t)
+}
+
 impl<T: Value, S, U> ClampExpr<S, U> for Expr<T>
 where
     S: SpreadOps<Expr<T>, Join = T>,

diff --git a/luisa_compute/src/lib.rs b/luisa_compute/src/lib.rs
@@ -14,7 +14,7 @@ pub mod resource;
 pub mod rtx;
 pub mod runtime;
 
-pub use crate::lang::ops::{max, min};
+pub use crate::lang::ops::{lerp, max, min};
 
 pub mod prelude {
     pub use half::f16;