130 lines
4.4 KiB
C
130 lines
4.4 KiB
C
#define CANVAS_MAX 2048
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#include "tuples.h"
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#include "canvas.h"
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#include "rays.h"
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#include "spheres.h"
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#include "intersections.h"
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#include "transformations.h"
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#include "materials.h"
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#include "world.h"
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#include "camera.h"
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static struct canvas _canvas;
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int main()
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{
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struct tuple ray_origin = point(0.0f, 0.0f, -5.0f);
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float wall_z = 10.0f;
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float wall_size = 7.0f;
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int canvas_pixels = 100;
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float pixel_size = wall_size / (float)canvas_pixels;
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float half = wall_size / 2.0f;
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struct sphere floor = sphere();
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floor.transform = scaling(10.0f, 0.01f, 10.0f);
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floor.material.color = color(1.0f, 0.9f, 0.9f);
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floor.material.specular = 0.0f;
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struct sphere left_wall = sphere();
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{
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struct mat4x4 _translation = translation(0.0f, 0.0f, 5.0f);
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struct mat4x4 _rotation_y = rotation_y(-pi / 4.0f);
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struct mat4x4 _rotation_x = rotation_x(pi / 2.0f);
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struct mat4x4 _scaling = scaling(10.0f, 0.01f, 10.0f);
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struct mat4x4 t0 = mat4x4_mul_m(&_rotation_x, &_scaling);
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struct mat4x4 t1 = mat4x4_mul_m(&_rotation_y, &t0);
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struct mat4x4 t2 = mat4x4_mul_m(&_translation, &t1);
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left_wall.transform = t2;
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}
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left_wall.material = floor.material;
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struct sphere right_wall = sphere();
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{
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struct mat4x4 _translation = translation(0.0f, 0.0f, 5.0f);
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struct mat4x4 _rotation_y = rotation_y(pi / 4.0f);
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struct mat4x4 _rotation_x = rotation_x(pi / 2.0f);
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struct mat4x4 _scaling = scaling(10.0f, 0.01f, 10.0f);
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struct mat4x4 t0 = mat4x4_mul_m(&_rotation_x, &_scaling);
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struct mat4x4 t1 = mat4x4_mul_m(&_rotation_y, &t0);
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struct mat4x4 t2 = mat4x4_mul_m(&_translation, &t1);
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right_wall.transform = t2;
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}
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right_wall.material = floor.material;
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struct sphere middle = sphere();
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middle.transform = translation(-0.5f, 1.0f, 0.5f);
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middle.material.color = color((float)0xfc / 255.f , (float)0x6d / 255.f, (float)0x09 / 255.f);
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middle.material.diffuse = 0.7;
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middle.material.specular = 0.3;
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struct sphere right = sphere();
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struct mat4x4 right_t = translation(1.5f, 0.5f, -0.5f);
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struct mat4x4 right_s = scaling(0.5f, 0.5f, 0.5f);
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right.transform = mat4x4_mul_m(&right_t, &right_s);
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right.material.color = color(0.5f, 1.0f, 0.1f);
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right.material.diffuse = 0.7;
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right.material.specular = 0.3;
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struct sphere left = sphere();
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struct mat4x4 left_t = translation(-1.5f, 0.33f, -0.75f);
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struct mat4x4 left_s = scaling(0.33f, 0.33f, 0.33f);
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left.transform = mat4x4_mul_m(&left_t, &left_s);
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left.material.color = color((float)0x12 / 255.f, (float)0xc9 / 255.f, (float)0xcc / 255.f);
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left.material.diffuse = 0.7;
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left.material.specular = 0.3;
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struct tuple light_position = point(-10.0f, 10.0f, -10.0f);
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struct tuple light_color = color(1.0f, 1.0f, 1.0f);
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struct light light = point_light(light_position, light_color);
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struct world world;
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world.light = light;
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world.object_count = 6;
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world.objects[0] = floor;
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world.objects[1] = left_wall;
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world.objects[2] = right_wall;
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world.objects[3] = middle;
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world.objects[4] = right;
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world.objects[5] = left;
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struct camera _camera = camera(1600.0f, 800.0f, pi / 3.0f);
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_camera.transform = view_transform(point(0.0f, 1.5f, -5.0f),
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point(0.0f, 1.0f, 0.0f),
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vector(0.0f, 1.0f, 0.0f));
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for (int i = 0; i < 1; i++) {
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/*
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_camera.transform = view_transform(point(5.0f * cosf(pi / 360 * (float)i),
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1.5f,
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-5.0f * sinf(pi / 360 * (float)i)),
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point(0.0f, 1.0f, 0.0f),
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vector(0.0f, 1.0f, 0.0f));
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struct tuple light_position = point(-10.0f * cosf(pi / 360 * (float)i),
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10.0f,
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-10.0f * sinf(pi / 360 * (float)i));
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world.light.position = light_position;
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struct mat4x4 middle_rz = rotation_z(tau / 360.f * (float)i);
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struct mat4x4 middle_ry = rotation_y(tau / 360.f * (float)i);
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struct mat4x4 middle_r = mat4x4_mul_m(&middle_rz, &middle_ry);
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struct mat4x4 middle_transform = mat4x4_mul_m(&middle_r, &middle_s);
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world.objects[3].transform = mat4x4_mul_m(&middle_t, &middle_transform);
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*/
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camera_render(&_camera, &world, &_canvas);
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char s[128];
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snprintf(s, 128, "test%03d.ppm", i);
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printf("%s\n", s);
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canvas_to_ppm(&_canvas, s);
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}
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}
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