From 41ea2d8f94043d49fc26aaaa8030a73dcfdc2da9 Mon Sep 17 00:00:00 2001
From: Julian T <julian@jtle.dk>
Date: Sun, 24 Jan 2021 18:13:44 +0100
Subject: Create rust project

---
 src/object.cpp | 103 ---------------------------------------------------------
 1 file changed, 103 deletions(-)
 delete mode 100644 src/object.cpp

(limited to 'src/object.cpp')

diff --git a/src/object.cpp b/src/object.cpp
deleted file mode 100644
index 1449cbb..0000000
--- a/src/object.cpp
+++ /dev/null
@@ -1,103 +0,0 @@
-#include "object.hpp"
-
-#include <math.h>
-#include <iostream>
-#include "common.hpp"
-
-void Color::clamp() {
-    if (m_x > 1) { m_x = 1; }
-    if (m_y > 1) { m_y = 1; }
-    if (m_z > 1) { m_z = 1; }
-}
-
-Material::Material(Color color, double defuse, double emissive) {
-    m_color = color;
-    m_defuse = defuse;
-    m_emissive = emissive;
-}
-
-Color Material::reflect(const Vec3d &normal, const Vec3d &in, const Vec3d &out, const Color &incol) const {
-    return Vec3d(m_color) * m_emissive + 
-         (Vec3d(m_color) * Vec3d(incol)) * (out.dot(normal) * m_defuse);
-}
-
-Sphere::Sphere(const Material &mat, Vec3d center, double radius) : Shape(mat) {
-    m_center = center;
-    m_radius = radius;
-}
-
-Plane::Plane(const Material &mat, Vec3d start, Vec3d norm) : Shape(mat) {
-    m_start = start;
-    m_norm = norm;
-
-    m_norm.normalize();
-}
-
-Vec3d Sphere::norm_at(const Vec3d &point, const Vec3d&) const {
-    auto res = point - m_center;
-    res.normalize();
-    return res;
-}
-
-// https://www.scratchapixel.com/lessons/3d-basic-rendering/minimal-ray-tracer-rendering-simple-shapes/ray-sphere-intersection
-double Sphere::intersect(const Ray &ray, bool skip_dist) const {
-    // Calculate O - C used multiple places
-    auto oc = ray.m_start - m_center;
-    // Calculate components of quadratic formula
-    // a = 1 when ray.direction is a unit vector
-    auto a = 1;
-    auto b = 2 * ray.m_direction.dot(oc);
-    auto c = oc.dot(oc) - m_radius * m_radius;
-
-    // Solve quadratic function
-    auto discr = b * b - 4 * a * c;
-    if (discr < 0) {
-        // No solution
-        return -1;
-    }
-    if (skip_dist) {
-        // Do not calculate distance
-        return 1;
-    }
-
-    auto q = (b > 0) ?
-        -0.5 * (b + sqrt(discr)):
-        -0.5 * (b - sqrt(discr));
-    auto t1 = q; // Assuming a = 1
-    auto t0 = c / q;
-
-    // Find correct result
-    if (t0 <= ZERO_APPROX) {
-        t0 = t1;
-    }
-
-    if (t0 <= ZERO_APPROX) {
-        return -1;
-    }
-
-    return t0;
-}
-
-Vec3d Plane::norm_at(const Vec3d&, const Vec3d &indir) const {
-    auto scale = m_norm.dot(indir);
-    return scale > 0 ? -m_norm : m_norm;
-}
-
-// https://www.scratchapixel.com/lessons/3d-basic-rendering/minimal-ray-tracer-rendering-simple-shapes/ray-plane-and-ray-disk-intersection
-// Requires that vectors are normalized
-// Skip dist is ignored as distance must be calculated
-double Plane::intersect(const Ray &ray, bool) const {
-    // If ray is parallel
-    auto nr = m_norm.dot(ray.m_direction);
-    if (abs(nr) < ZERO_APPROX) {
-        return -1;
-    }
-
-    // Calculate distance
-    auto dist = m_norm.dot(m_start - ray.m_start) / nr;
-    if (dist < 0) {
-        return -1;
-    }
-
-    return dist;
-}
-- 
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