chore: rename Sample -> Randomness

clovers-cli/src/draw_cpu.rs

@@ -16,7 +16,7 @@ use crate::colorize::colorize;
 use crate::normals::normal_map;
 use crate::sampler::blue::BlueSampler;
 use crate::sampler::random::RandomSampler;
-use crate::sampler::{Sample, Sampler, SamplerTrait};
+use crate::sampler::{Randomness, Sampler, SamplerTrait};
 
 /// The main drawing function, returns a `Vec<Srgb>` as a pixelbuffer.
 pub fn draw(opts: RenderOpts, scene: &Scene, sampler: Sampler) -> Vec<Srgb<u8>> {
@@ -67,7 +67,7 @@ fn render_pixel(
     let max_depth = opts.max_depth;
     let mut pixel_color: Xyz<E> = Xyz::new(0.0, 0.0, 0.0);
     for sample in 0..opts.samples {
-        let Sample {
+        let Randomness {
             pixel_offset,
             lens_offset,
             time,

clovers-cli/src/sampler.rs

@@ -10,9 +10,10 @@ pub mod random;
 
 pub trait SamplerTrait<'scene> {
     // TODO: better types
-    fn sample(&mut self, i: i32, j: i32, index: i32) -> Sample;
+    fn sample(&mut self, i: i32, j: i32, index: i32) -> Randomness;
 
     /// Manually request a sample from the specific dimension
+    #[allow(dead_code)] // TODO: remove
     fn sample_dimension(
         &mut self,
         i: i32,
@@ -23,7 +24,7 @@ pub trait SamplerTrait<'scene> {
 }
 
 /// A collection of random values to be used for each sample. Returned as a struct to ensure the correct sampling order for the underlying source of randomness.
-pub struct Sample {
+pub struct Randomness {
     /// Intra-pixel x,y offset. Used for antialiasing.
     pub pixel_offset: Vec2,
     /// The x,y offset used in the lens equations for aperture / depth-of-field simulation

clovers-cli/src/sampler/blue.rs

@@ -31,7 +31,7 @@ impl<'scene> BlueSampler {
 }
 
 impl<'scene> SamplerTrait<'scene> for BlueSampler {
-    fn sample(&mut self, i: i32, j: i32, index: i32) -> Sample {
+    fn sample(&mut self, i: i32, j: i32, index: i32) -> Randomness {
         let pixel_offset = Vec2::new(
             (self.get)(i, j, index, SamplerDimension::PixelOffsetX),
             (self.get)(i, j, index, SamplerDimension::PixelOffsetY),
@@ -44,7 +44,7 @@ impl<'scene> SamplerTrait<'scene> for BlueSampler {
         // TODO: verify uniformity & correctness for math?
         let wavelength = sample_wavelength((self.get)(i, j, index, SamplerDimension::Wavelength));
 
-        Sample {
+        Randomness {
             pixel_offset,
             lens_offset,
             time,

clovers-cli/src/sampler/random.rs

@@ -3,7 +3,7 @@
 use clovers::{random::random_in_unit_disk, wavelength::random_wavelength, Vec2};
 use rand::{rngs::SmallRng, Rng};
 
-use super::{Sample, SamplerTrait};
+use super::{Randomness, SamplerTrait};
 
 #[derive(Debug)]
 pub struct RandomSampler<'scene> {
@@ -17,13 +17,13 @@ impl<'scene> RandomSampler<'scene> {
 }
 
 impl<'scene> SamplerTrait<'scene> for RandomSampler<'scene> {
-    fn sample(&mut self, _i: i32, _j: i32, _index: i32) -> Sample {
+    fn sample(&mut self, _i: i32, _j: i32, _index: i32) -> Randomness {
         let pixel_offset = Vec2::new(self.rng.gen(), self.rng.gen());
         let lens_offset = random_in_unit_disk(self.rng).xy();
         let time = self.rng.gen();
         let wavelength = random_wavelength(self.rng);
 
-        Sample {
+        Randomness {
             pixel_offset,
             lens_offset,
             time,