https://github.com/fabio914/watchRayTracer

RayTracer for watchOS
https://github.com/fabio914/watchRayTracer

apple-watch raytracer watchos

Last synced: 3 months ago
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RayTracer for watchOS

• Host: GitHub
• URL: https://github.com/fabio914/watchRayTracer
• Owner: fabio914
• Created: 2015-12-06T01:04:08.000Z (almost 9 years ago)
• Default Branch: master
• Last Pushed: 2015-12-07T01:36:41.000Z (almost 9 years ago)
• Last Synced: 2024-06-30T16:54:55.701Z (4 months ago)
• Topics: apple-watch, raytracer, watchos
• Language: Objective-C
• Size: 2.54 MB
• Stars: 5
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

• awesome-apple-watch - Watch RayTracer - RayTracer for watchOS (Sample Apps / Blog)

README

        
# Watch RayTracer





A simple ray tracer for iOS 9.0 and watchOS 2.0 written in Objetive-C. 

## Why?

I wanted to be the first one to run a ray tracer on a watch. It works, however it may take a while to render a single frame on the Apple Watch.

## Example

### Creating a scene

```objective-c

RTCamera * camera = [RTCamera cameraWithEye:[RTPoint pointWithX:-5.0 Y:8.0 Z:5.0] lookAt:[RTPoint pointWithX:0.0 Y:5.0 Z:0.0] up:[RTVector vectorWithX:0.0 Y:1.0 Z:0.0] fov:45.0 zvp:0.1];

    

RTBackground * background = [RTBackground backgroundWithCanvas:[RTCanvas canvasWithImage:[UIImage imageNamed:@"photosphere"]]];

    

RTMaterial * sphereMaterial = [RTMaterial materialWithAmbient:[RTComponent componentWithRed:0.1 green:0.1 blue:0.1] diffuse:[RTComponent componentWithRed:0.8 green:0.8 blue:0.08] specular:[RTComponent componentWithRed:0.98 green:0.98 blue:0.8] shininess:300.0 reflection:0.9 transparency:0.0];

    

RTSphere * sphere = [RTSphere sphereWithMaterial:sphereMaterial position:[RTPoint pointWithX:0.0 Y:5.0 Z:0.0] radius:1.0];

RTMaterial * boxMaterial = [RTMaterial materialWithAmbient:[RTComponent componentWithRed:0.1 green:0.1 blue:0.1] diffuse:[RTComponent componentWithRed:0.5 green:0.5 blue:0.5] specular:[RTComponent componentWithRed:0.8 green:0.8 blue:0.8] shininess:300.0 reflection:0.75 transparency:0.0];

RTBox * box = [RTBox boxWithMaterial:boxMaterial position:[RTPoint pointWithX:0.0 Y:4.0 Z:0.0] size:[RTVector vectorWithX:3.0 Y:0.5 Z:3.0]];

    

RTLight * light = [RTLight lightAtPosition:[RTPoint pointWithX:2.0 Y:11.0 Z:6.0] withAmbient:[RTColour colourWithRed:255.0 green:255.0 blue:255.0] diffuse:[RTColour colourWithRed:255.0 green:255.0 blue:255.0] specular:[RTColour colourWithRed:255.0 green:255.0 blue:255.0]];

    

RTScene * scene = [RTScene sceneWithCamera:camera bakground:background objects:@[sphere, box] lights:@[light]];

```

### Rendering that scene

Rendering with anti-aliasing and more reflections

```objective-c

RTRayTracer * rt = [RTRayTracer niceRayTracerWithScene:scene dimension:[RTDimension dimensionWithSize:CGSizeMake(100, 100)]];

UIImage * result = [[rt trace] image];

```

Rendering without anti-aliasing and with less reflections

```objective-c

RTRayTracer * rt = [RTRayTracer fastRayTracerWithScene:scene dimension:[RTDimension dimensionWithSize:CGSizeMake(100, 100)]];

UIImage * result = [[rt trace] image];

```

### Requires

* XCode 7.1 (iOS 9.0 + watchOS 2.0)

### Developer

[Fabio de Albuquerque Dela Antonio](http://fabio914.blogspot.com)

### Credits

Photo sphere by [Steve Troletti](http://www.trolettiphoto.com)