/
gz.h
96 lines (80 loc) · 2.67 KB
/
gz.h
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/*
* Gz.h - include file for the cs580 rendering library
*/
/*
* universal constants
*/
#define GZ_SUCCESS 0
#define GZ_FAILURE 1
/*
* name list tokens
*/
#define GZ_NULL_TOKEN 0 /* triangle vert attributes */
#define GZ_POSITION 1
#define GZ_NORMAL 2
#define GZ_TEXTURE_INDEX 3
#define GZ_RGB_COLOR 99 /* renderer-state pixel color */
#define GZ_INTERPOLATE 95 /* interpolation mode */
#define GZ_DIRECTIONAL_LIGHT 79 /* directional light */
#define GZ_AMBIENT_LIGHT 78 /* ambient light type */
#define GZ_AMBIENT_COEFFICIENT 1001 /* Ka material property */
#define GZ_DIFFUSE_COEFFICIENT 1002 /* Kd material property */
#define GZ_SPECULAR_COEFFICIENT 1003 /* Ks material property */
#define GZ_DISTRIBUTION_COEFFICIENT 1004 /* specular power */
/*
* flags fields for value list attributes
*/
/* select interpolation mode of the shader (select one) */
#define GZ_FLAT 0 /* flat shading with GZ_RBG_COLOR */
#define GZ_COLOR 1 /* interpolate vertex color */
#define GZ_NORMALS 2 /* interpolate normals */
typedef int GzToken;
typedef void *GzPointer;
typedef float GzColor[3];
typedef short GzIntensity; /* 0 - 4095 in lower 12-bits need to make this longer for fractal */
typedef float GzCoord[3];
typedef float GzTextureIndex[2];
typedef float GzMatrix[4][4];
typedef int GzDepth; /* z is signed for clipping */
/*
* Gz camera definition
*/
#ifndef GZCAMERA
#define GZCAMERA
typedef struct GzCamera
{
GzMatrix Xiw; /* xform from world to image space */
GzMatrix Xpi; /* perspective projection xform */
GzCoord position; /* position of image plane origin */
GzCoord lookat; /* position of look-at-point */
GzCoord worldup; /* world up-vector */
float FOV; /* horizontal field of view */
} GzCamera;
#endif
#ifndef GZLIGHT
#define GZLIGHT
typedef struct GzLight
{
GzCoord direction; /* vector from surface to light */
GzColor color; /* light color intensity */
} GzLight;
#endif
#ifndef GZINPUT
#define GZINPUT
typedef struct GzInput
{
GzCoord rotation; /* object rotation */
GzCoord translation; /* object translation */
GzCoord scale; /* object scaling */
GzCamera camera; /* camera */
GzLight light; /* light */
} GzInput;
#endif
#define RED 0 /* array indicies for color vector */
#define GREEN 1
#define BLUE 2
#define X 0 /* array indicies for position vector */
#define Y 1
#define Z 2
#define U 0 /* array indicies for texture coords */
#define V 1