COMP 5900

Mykola Konyk, [email protected]

Wed, March 11, 2009 Distributed under MS-RL license.

Hello!

Here's my implementation of Assignment 3.

Implementation

Project is built using

1. OpenGL (GLUT)
2. Nvidia Cg shader library http://developer.nvidia.com/object/cg_toolkit.html#downloads

I've tested it on Nvidia Cg 2.0 and 2.1. Project contains an xcode project, as well as a makefile, which should work on mac, linux and cygwin, providing that OpenGL, GLUT and CG libraries are installed.

I am not sure about compiling the code on Windows, but you might need to change paths to Cg/GL/Glut in Globals.h file (which is included in the project).

About the demo

It's possible to switch between rendering modes by using number keys (1..7), keys (q, w) and right mouse button - this brings up the menu. Moving mouse while holding left mouse button will rotate the object (scene).

Rendering modes

1. Cel shading with world space outline detection (from depth buffer)
2. Cel shading with object space outline detection (from normals)
3. Cel shading without any outline
4. Outline detection (from depth buffer)
5. Phong shading
6. Normal buffer
7. Depth buffer q) Render torus model w) Render teapot model

Code

All GUI (GLUT) code is contained in GlutApplication.h/cpp RenderTexture.h/cpp contains basic implementation of render texture, using FBOs CgShader.h/cpp - base class for all shaders in this application CgShaderNormal.h/cpp - shader used for rendering normal buffer CgShaderPhong.h/cpp - shader used for rendering phong lightning model CgShaderCel.h/cpp - shader used for rendering cel shading, with or without object-space outline CgShaderOutline.h/cpp - shader used for rendering outline (from depth - buffer) CgShaderCelScreen.h/cpp - shader used for rendering cel with screen-space outline (merges CgShaderCel and CgShaderOutline results)

All shader code is loaded from c++ code (using strings instead of loading from external cg files).