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/*
* Copyright (c) 1991, 1992 by NeXT Computer, Inc as an unpublished work.
* All rights reserved.
*
*/
#ifndef _next3dh_
#define _next3dh_
#import <ri/ri.h>
#import <objc/hashtable.h>
typedef enum {
N3D_Perspective,
N3D_Orthographic
} N3DProjectionType;
typedef enum {
N3D_AmbientLight,
N3D_PointLight,
N3D_DistantLight,
N3D_SpotLight
} N3DLightType;
typedef enum {
N3D_AllAxes,
N3D_XAxis,
N3D_YAxis,
N3D_ZAxis,
N3D_XYAxes,
N3D_XZAxes,
N3D_YZAxes
} N3DAxis;
typedef enum {
N3D_HiddenRendering = 0,
N3D_InOrderRendering,
N3D_NoRendering
} N3DHider;
typedef enum {
N3D_PointCloud = 0,
N3D_WireFrame,
N3D_ShadedWireFrame,
N3D_FacetedSolids,
N3D_SmoothSolids
} N3DSurfaceType;
/*
* Macros for quick structure copies. Turns into small code when
* compiled with -O.
*/
#define N3D_CopyMatrix( s_, d_ ) do { \
struct _cms { RtMatrix _m; }; \
*((struct _cms *)(d_)) = *((struct _cms *)(s_)); \
} while (0)
#define N3D_CopyPoint( s_, d_ ) do { \
struct _cps { RtPoint _p; }; \
*((struct _cps *)(d_)) = *((struct _cps *)(s_)); \
} while (0)
#define N3D_CopyBound( s_, d_ ) do { \
struct _cps { RtBound _b; }; \
*((struct _cps *)(d_)) = *((struct _cps *)(s_)); \
} while (0)
#define N3D_ConvertBoundToPoints( b_, p_ ) do { \
(p_)[0][0] = (b_)[0]; \
(p_)[0][1] = (b_)[2]; \
(p_)[0][2] = (b_)[4]; \
(p_)[1][0] = (b_)[1]; \
(p_)[1][1] = (b_)[3]; \
(p_)[1][2] = (b_)[5]; \
} while (0)
#define N3D_ConvertPointsToBound( p_, b_ ) do { \
(b_)[0] = (p_)[0][0]; \
(b_)[1] = (p_)[1][0]; \
(b_)[2] = (p_)[0][1]; \
(b_)[3] = (p_)[1][1]; \
(b_)[4] = (p_)[0][2]; \
(b_)[5] = (p_)[1][2]; \
} while (0)
/*
* Single-value macros for accessing point coords.
*/
#define N3D_XComp( _p ) ((_p)[0])
#define N3D_YComp( _p ) ((_p)[1])
#define N3D_ZComp( _p ) ((_p)[2])
#define N3D_WComp( _p ) ((_p)[3])
void N3DMult3DPoint( RtPoint p, RtMatrix m, RtPoint result );
void N3DMult3DPoints( RtPoint *p, int count, RtMatrix m, RtPoint *result );
void N3DIntersectLinePlane( RtPoint *L, RtPoint pnorm, RtPoint ppoint,
RtPoint *psect );
void N3DMultiplyMatrix( RtMatrix a, RtMatrix b, RtMatrix result );
float N3DInvertMatrix( RtMatrix m, RtMatrix inverse_m );
/* Various and sundry useful globals */
extern NXAtom N3DRIBPboardType;
extern const RtPoint N3DOrigin;
extern const RtMatrix N3DIdentityMatrix;
#endif
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