Struct BlendedSurface 

pub struct BlendedSurface<A: Surface, B: Surface> {
    pub surface_a: A,
    pub surface_b: B,
    pub blend_fn: Box<dyn Fn(f32, f32) -> f32 + Send + Sync>,
}

Compose two surfaces by blending them with a weight function.

Fields

surface_a: A

surface_b: B

blend_fn: Box<dyn Fn(f32, f32) -> f32 + Send + Sync>

Implementations

impl<A: Surface, B: Surface> BlendedSurface<A, B>

pub fn new<F>(a: A, b: B, blend: F) -> Self

where F: Fn(f32, f32) -> f32 + Send + Sync + 'static,

pub fn uniform(a: A, b: B, t: f32) -> Self

Uniform blend (constant t).

Trait Implementations

impl<A: Surface, B: Surface> Surface for BlendedSurface<A, B>

fn evaluate(&self, u: f32, v: f32) -> Vec3

Evaluate the surface position at parameter (u, v).

fn name(&self) -> &str

Human-readable name for debugging.

fn normal(&self, u: f32, v: f32) -> Vec3

Compute the surface normal at parameter (u, v). Default implementation uses central differences.

fn tangent_u(&self, u: f32, v: f32) -> Vec3

Compute the partial derivative with respect to u at (u, v).

fn tangent_v(&self, u: f32, v: f32) -> Vec3

Compute the partial derivative with respect to v at (u, v).

fn u_range(&self) -> (f32, f32)

Parameter domain for u: (min, max). Defaults to (0, 1).

fn v_range(&self) -> (f32, f32)

Parameter domain for v: (min, max). Defaults to (0, 1).

fn wraps_u(&self) -> bool

Whether the surface wraps in u. Used for seamless tessellation.

fn wraps_v(&self) -> bool

Whether the surface wraps in v. Used for seamless tessellation.