Recent Projects in Raytrace Tutorials

Part 4 The Ray and Intersection

Project to visually show the concept of a ray and to give a visual demonstration of the collision math discussed in the forums.

Part 1 Points and Vectors

Project to visually show the difference between points and vectors.

Part 12 CSG

This is a demonstration ray tracer that uses subtractive Constructive Solid Geometry.

Part 11 2D Constructive Solid Geometry Intersection

Project to visually show how Constructive Solid Geometry intersection works on the ray by showing what happens from a top down perspective. The red and blue objects can be moved using the mouse. The red object is a subtractive object and removes sections of the ray that intersect with it and the blue object.

Part 10 Reflection

Example code that demonstrates reflection.

Part 9 Light Occlusion

Example code to demonstrate how objects can occlude light.

Part 8 Multiple objects

Example code that has multiple objects in it.

Another Full Raytracer for Scratch 1.2

This is a full raytracer written in Scratch that supports ambient, diffuse, and phong lighting, light occlusion and a single level of reflection. Running this program requires a lot of patience since it can take several hours to render the scene with the pen size set to 2. This was a lot of fun to write. I think the Scratch team has done a wonderful job in developing such an extinsible language.

Full Raytracer for Scratch 1.2

Link to final image: flickr.com/photos/8915508@N03/548425774 This is a full raytracer written in Scratch that supports ambient, diffuse, and phong lighting, light occlusion and a single level of reflection. Running this program requires a lot of patience since it can take several hours to render the scene with the pen size set to 2. This was a lot of fun to write. I think the Scratch team has done a wonderful job in developing such an extinsible language.

Part 7 Lighting and Material Color

Example of code of illumination models and material coloring.

Full Raytracer

Link to final image: http://www.flickr.com/photos/8915508@N03/548425774/ This is a full raytracer written in Scratch that supports ambient, diffuse, and phong lighting, light occlusion and a single level of reflection. Running this program requires a lot of patience since it can take several hours to render the scene with the pen size set to 2. This was a lot of fun to write. I think the Scratch team has done a wonderful job in developing such an extinsible language.

Part 3 Dot Product

Project to visually show how the dot product works.

Part 6 Field of View and 3D Rays

Demonstration of using a Field of View and creating 3D Rays.

Part 5 Reflection Vector

Demonstration of the reflection vector.

Part 2 Scalar Components of Vectors

Project to visually show how to get the length of a vector and use it to make a unit length vector.