Gr@v:f/UX [Gravity Flux]

Developed by Gavin Zimmerman

Controls

ESC Escape WASD Move camera Mouse Right Button Rotate camera Mouse Right Button + shift Dolly camera Mouse Scroll Zoom in / out B Build scene [shortcut dev tool] R Reload Shaders [shortcut dev tool] P Toggle post-processing

Compiling and Running

Compiling: make Running: ./final

About

// ::calculating trajectory
//  _AZtroid0 20.742%    influence
//  _AZtroid1 40.11%     influence
//  _AZtroid2 1.43%      influence
//  _AZtroid4 4.532%     influence
//  _AZtroid5 0.61%      influence
//  _AZtroid9 3.78%      influence
//  _AZtroid23 30.822%   influence
// ::path found with influences
// ::fire() 

Files

 camera.c/.h      Camera Logic
 grav-flx.c/.h    Main scene
 main.c/.h        Top level program, responsible for setting up input and window
 noise.c/.h       Source code to develop 3D noise texture

Shaders

   AZ                Azteroid vertex shader pipeline
   cel_blue.frag     Azteroid cel shading
   post0.frag        Post processing
   stars.frag        Star background     

Multiverse Rendering Engine

   MVRE.h           Rendering Frameowrk logic
   graphics.h       Graphics Dependencies
   linmath.h        Linear Algebra utilities
   objects.c/.h     Object Logic; Instancing
   render.c/.h      Render logic
   signal.c/.h      Programming pattern for event-driven programming
   utils.c/utils.h  Utility function

Key Accomplishments

The key showcase in this project is deeloping a space scene completely procedurally, without meshes or textures onhand. The geometry makes use of several concepts we learned this year including: dynamic tesselation based on distance, noise functions, stored textures (3D texture stores simplex), and procedural textures. The majority of interesting code for this process is under 'shdr/AZ'. These are all then created differently by supplying different inputs to each instanced object, such that they can be form a random shape. Getting this to run fairly efficiently was one of my main obstacles and I utilize various optimizations we learned in class among dynamic tesselation, backface culling, camera culling, texture-lookups for noise, and smaller loops.

Another item I've worked on is post-processing, which aims to layer noise and a red hue ontop the first pass- this emulates noise found in traditional cel animation by lighting.