luojeff/kettle

Final project for MKS66 (Graphics Programming)

kettle

Final project for MKS66 (Graphics Programming) Pd. 10

Contributors

Jeffrey Luo
Edmond Wong

Description

A graphics rendering engine that supports MDL lighting commands (predefined constants and light sources), mesh generation from OBJ files, and new vary modifiers.

Features

• Add multiple light sources
  light <light name> <X> <Y> <Z> <R> <G> <B>
• Set ambient lightning
  ambient <r> <g> <b>
• Create predefined constants
  constant <constant name> <R-amb> <R-diff> <R-spec> <G-amb> <G-diff> <G-spec> <B-amb> <B-diff> <B-spec>
  Define a constant: constants shiny 0.2 0.4 0.85 0.2 0.4 0.85 0.2 0.4 0.85
  Then attach them later:

mesh shiny :teapot.obj
sphere shiny 0 0 0 100

• Create meshes from obj files
  mesh <constant> :<file path to OBJ> Note: OBJ files only support v (vertex) and f (face) prefixes.
  e.g. Valid entries include v 5.6 10.3 1.9 and f 1 3 4
• Create non-linear vary modifiers. Approximates using a trinomial obtained from a hermite curve matrix.
  vary <knob_name> <start_frame> <end_frame> <start_val> <end_val> <start "slope"> <end "slope">
  The last two arguments represent the "slope" or magnitude of the knob variation at the start and end respectively. Example usage: vary spinny 0 49 0 1 3 1.5
  If you leave them out, a linear increment will be used.

Compilation

In the terminal, type $ make
Run by typing $ make run. This will automatically use pumpkin.mdl as an input.
If you wish to use your own MDL file, type $ ./mdl <MDL file>