rtiow: new debugging of spheramid scene.

rtiow/src/scenes/spheramid.rs

@@ -6,17 +6,53 @@ use crate::material::Dielectric;
 use crate::material::Lambertian;
 use crate::material::Metal;
 use crate::moving_sphere::MovingSphere;
+use crate::rect::XYRect;
+use crate::rect::XZRect;
 use crate::renderer::Opt;
 use crate::renderer::Scene;
 use crate::sphere::Sphere;
 use crate::texture::CheckerTexture;
 use crate::texture::ConstantTexture;
+use crate::texture::EnvMap;
 use crate::texture::Texture;
 use crate::vec3::Vec3;
 
+// Draws many spheres along each positive axis.
+// Blue X-positive
+// Green Y-positive
+// Red Z-positive
+fn draw_axises() -> Vec<Box<dyn Hit>> {
+    let half_diameter = 0.1;
+    let x = (0..100).map(|i| -> Box<dyn Hit> {
+        // X-axis
+        Box::new(Sphere::new(
+            Vec3::new(i as f32 * 2. * half_diameter, 0., 0.),
+            half_diameter,
+            Lambertian::new(ConstantTexture::new([0., 0., 1.])),
+        ))
+    });
+    let y = (0..100).map(|i| -> Box<dyn Hit> {
+        // Y-axis
+        Box::new(Sphere::new(
+            Vec3::new(0., i as f32 * 2. * half_diameter, 0.),
+            half_diameter,
+            Lambertian::new(ConstantTexture::new([0., 1., 0.])),
+        ))
+    });
+    let z = (0..100).map(|i| -> Box<dyn Hit> {
+        // Z-axis
+        Box::new(Sphere::new(
+            Vec3::new(0., 0., i as f32 * 2. * half_diameter),
+            half_diameter,
+            Lambertian::new(ConstantTexture::new([1., 0., 0.])),
+        ))
+    });
+    x.chain(y.chain(z)).collect()
+}
+
 pub fn new(opt: &Opt) -> Scene {
-    let lookfrom = Vec3::new(3., 4., 2.);
-    let lookat = Vec3::new(0., 0., -1.);
+    let lookfrom = Vec3::new(10., 10., 20.);
+    let lookat = Vec3::new(0., 0., 0.);
     let dist_to_focus = (lookfrom - lookat).length();
     let aperture = 0.1;
     let time_min = 0.;
@@ -24,7 +60,7 @@ pub fn new(opt: &Opt) -> Scene {
     let camera = Camera::new(
         lookfrom,
         lookat,
-        Vec3::new(0., 1., 0.),
+        Vec3::new(0., 0., 1.),
         45.,
         opt.width as f32 / opt.height as f32,
         aperture,
@@ -32,28 +68,26 @@ pub fn new(opt: &Opt) -> Scene {
         time_min,
         time_max,
     );
-    let ground_color: Box<dyn Texture> = if opt.use_accel {
-        Box::new(CheckerTexture::new(
-            ConstantTexture::new([0., 0., 0.]),
-            ConstantTexture::new([1.0, 0.4, 0.4]),
-        ))
-    } else {
-        Box::new(ConstantTexture::new(Vec3::new(0.4, 1.0, 0.4)))
-    };
+    let ground_color = CheckerTexture::new(
+        ConstantTexture::new([0., 0., 0.]),
+        ConstantTexture::new([1.0, 1.0, 1.0]),
+    );
 
-    let objects: Vec<Box<dyn Hit>> = vec![
-        //let world: Box<Hit> = Box::new(HitableList::new(vec![
+    let mut objects: Vec<Box<dyn Hit>> = vec![
+        Box::new(XYRect::new(
+            -10.,
+            10.,
+            -10.,
+            10.,
+            0.,
+            Lambertian::new(ground_color),
+        )),
         Box::new(Sphere::new([1., 0.5, 1.], 0.5, Dielectric::new(1.5))),
         Box::new(Sphere::new(
-            Vec3::new(0., 0., -1.),
+            Vec3::new(0., 0., 0.5),
             0.5,
             Lambertian::new(ConstantTexture::new(Vec3::new(0.1, 0.2, 0.5))),
         )),
-        Box::new(Sphere::new(
-            Vec3::new(0., -1000.5, -1.),
-            1000.,
-            Lambertian::new(ground_color),
-        )),
         Box::new(Sphere::new(
             Vec3::new(1., 0., -1.),
             0.5,
@@ -68,11 +102,11 @@ pub fn new(opt: &Opt) -> Scene {
             Lambertian::new(ConstantTexture::new(Vec3::new(0.2, 0.8, 0.2))),
         )),
     ];
-    let world: Box<dyn Hit> = if opt.use_accel {
-        Box::new(KDTree::new(objects, time_min, time_max))
-    } else {
-        Box::new(HitableList::new(objects))
-    };
+    objects.extend(draw_axises());
+    //let world = Box::new(KDTree::new(objects, time_min, time_max));
+    let world = Box::new(HitableList::new(objects));
+    let skybox_bytes = include_bytes!("../../images/envmap.jpg");
+    let skybox = image::load_from_memory(skybox_bytes).unwrap().to_rgb();
     Scene {
         camera,
         world,
@@ -83,6 +117,7 @@ pub fn new(opt: &Opt) -> Scene {
         width: opt.width,
         height: opt.height,
         global_illumination: true,
+        env_map: Some(EnvMap::new(skybox)),
         ..Default::default()
     }
 }