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https://github.com/scottgigawatt/raytracer
A fast and customizable C-based raytracer for stunning visualizations
https://github.com/scottgigawatt/raytracer
raytracer raytracing
Last synced: about 7 hours ago
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A fast and customizable C-based raytracer for stunning visualizations
- Host: GitHub
- URL: https://github.com/scottgigawatt/raytracer
- Owner: scottgigawatt
- Created: 2020-12-03T23:14:51.000Z (almost 4 years ago)
- Default Branch: master
- Last Pushed: 2020-12-03T23:15:32.000Z (almost 4 years ago)
- Last Synced: 2024-04-13T02:29:05.638Z (7 months ago)
- Topics: raytracer, raytracing
- Language: C
- Homepage:
- Size: 813 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# raytracer
This project contains a raytracer program for creating computer generated graphics.
## Supported Object Types
This project currently supports the following object types:
- Plane
- Procedural shaded plane
- Tiled plane
- Finite plane
- Sphere
- Procedural shaded sphere
## Supported Light Types
This project currently supports the following types of light:
- Ambient lighting
- Diffuse reflection
- Specular reflection
An ambient light source represents an omni-directional, fixed-intensity and fixed-color light source that affects all objects in the scene equally [[1]](https://en.wikipedia.org/wiki/Shading#Ambient_lighting).
Diffuse reflection is the reflection of light from a surface such that an incident ray is reflected at many angles rather than at just one angle as in the case of specular reflection [[2]](https://en.wikipedia.org/wiki/Diffuse_reflection).
Specular reflection, also known as regular reflection is the mirror-like reflection of waves, such as light, from a surface. In this process, each incident ray is reflected, with the reflected ray having the same angle to the surface normal as the incident ray [[3]](https://en.wikipedia.org/wiki/Specular_reflection).
## Input File Examples
Full example files can be found in the [input](input) directory.
### Object Codes
The full list of object codes can be found in [model.h](src/model.h#L19-L40).
```C
#define LIGHT 10
#define SPOTLIGHT 11
#define PROJECTOR 12
#define SPHERE 13
#define PLANE 14
#define FINITE_PLANE 15
#define TILED_PLANE 16
#define TEX_PLANE 17
#define REF_SPHERE 18
#define P_SPHERE 19
#define P_PLANE 20
#define PARABOLOID 21
#define CYLINDER 22
#define CONE 23
#define HYPERBOLOID 24
```
### Scene definitions
```
8 6 World dimensions (x, y)
0 0 3 Viewpoint (x, y, z)
```
### Procedural plane
```
20 Procedural plane object code
0 10 5 Ambient (r, g, b)
0 0 0 Diffuse (r, g, b)
0 0 0 Specular (r, g, b)
0 0 1 Normal (x, y, z)
-4 0 -10 Center (x, y, z)
2 Custom shader index
```
### Finite plane
```
15 Finite plane object code
2 2 2 Ambient (r, g, b)
6 0 6 Diffuse (r, g, b)
0 0 0 Specular (r, g, b)
.5 1 1 Normal (x, y, z)
4 -1 -2 Center (x, y, z)
2 1 1 Direction (x, y, z)
7 3 Size (x, y)
```
### Tiled plane
```
16 Tiled plane object code
0.2 0.2 0.2 Ambient (r, g, b)
0.0 0.0 0.0 Diffuse (r, g, b)
2.0 2.0 2.0 Specular (r, g, b)
0 1 0 Normal (x, y, z)
0 -8 0 Center (x, y, z)
1.0 0.0 1.0 Grid direction
1.0 1.0 Grid size
0.2 0.2 0.2 Ambient (r, g, b)
3.0 3.0 3.0 Diffuse (r, g, b)
0.0 0.0 0.0 Specular (r, g, b)
```
### Sphere
```
13 Sphere object code
5 1 1 Ambient (r, g, b)
0 0 0 Diffuse (r, g, b)
0 0 0 Specular (r, g, b)
1.5 -.34 -6 Center (x, y, z)
3 Radius
```
### Light
```
10 Light object code
0 5 0 Ambient (r, g, b)
0 2 5 Center (x, y, z)
```