84 |
|
typedef struct SDComp_s SDComponent; |
85 |
|
|
86 |
|
/* Methods needed to handle BSDF components (nothing is optional) */ |
87 |
– |
#ifdef __cplusplus |
88 |
– |
/* in C++, the const puts the type into the local anonymous namespace, |
89 |
– |
making it a private (and different) type for each file using this header. |
90 |
– |
*/ |
87 |
|
typedef struct { |
92 |
– |
#else |
93 |
– |
typedef const struct { |
94 |
– |
#endif |
88 |
|
/* return non-diffuse BSDF */ |
89 |
|
int (*getBSDFs)(float coef[SDmaxCh], const FVECT outVec, |
90 |
|
const FVECT inVec, SDComponent *sdc); |
104 |
|
/* Structure to hold a spectral BSDF component (typedef SDComponent above) */ |
105 |
|
struct SDComp_s { |
106 |
|
C_COLOR cspec[SDmaxCh]; /* component spectral bases */ |
107 |
< |
SDFunc *func; /* methods for this component */ |
107 |
> |
const SDFunc *func; /* methods for this component */ |
108 |
|
void *dist; /* loaded distribution data */ |
109 |
|
SDCDst *cdList; /* cumulative distribution cache */ |
110 |
|
}; |
145 |
|
#define SDretainAll 2 /* also keep cumulative cache data */ |
146 |
|
|
147 |
|
extern int SDretainSet; /* =SDretainNone by default */ |
148 |
+ |
extern unsigned long SDmaxCache; /* =0 (unlimited) by default */ |
149 |
|
|
150 |
|
/***************************************************************** |
151 |
|
* The following routines are less commonly used by applications. |