use crate::core::geometry::{Point2f, Vector2f};
use crate::core::pbrt::Float;
use crate::filters::boxfilter::BoxFilter;
use crate::filters::gaussian::GaussianFilter;
use crate::filters::mitchell::MitchellNetravali;
use crate::filters::sinc::LanczosSincFilter;
use crate::filters::triangle::TriangleFilter;
pub enum Filter {
Bx(BoxFilter),
Gaussian(GaussianFilter),
MitchellNetravali(MitchellNetravali),
LanczosSinc(LanczosSincFilter),
Triangle(TriangleFilter),
}
impl Filter {
pub fn evaluate(&self, p: Point2f) -> Float {
match self {
Filter::Bx(filter) => filter.evaluate(p),
Filter::Gaussian(filter) => filter.evaluate(p),
Filter::MitchellNetravali(filter) => filter.evaluate(p),
Filter::LanczosSinc(filter) => filter.evaluate(p),
Filter::Triangle(filter) => filter.evaluate(p),
}
}
pub fn get_radius(&self) -> Vector2f {
match self {
Filter::Bx(filter) => filter.get_radius(),
Filter::Gaussian(filter) => filter.get_radius(),
Filter::MitchellNetravali(filter) => filter.get_radius(),
Filter::LanczosSinc(filter) => filter.get_radius(),
Filter::Triangle(filter) => filter.get_radius(),
}
}
}