| 21 |
|
#define ANG2R(r) (int)((r)*((1<<16)/M_PI)) |
| 22 |
|
#define R2ANG(c) (((c)+.5)*(M_PI/(1<<16))) |
| 23 |
|
|
| 24 |
+ |
/* moderated cosine factor */ |
| 25 |
+ |
#define COSF(z) (fabs(z)*0.98 + 0.02) |
| 26 |
+ |
|
| 27 |
|
typedef union { |
| 28 |
|
struct { |
| 29 |
|
float v; /* DSF sum */ |
| 93 |
|
|
| 94 |
|
/* BSDF value for boundary regions */ |
| 95 |
|
extern double bsdf_min; |
| 96 |
+ |
extern double bsdf_spec_peak; |
| 97 |
+ |
extern double bsdf_spec_rad; |
| 98 |
|
|
| 99 |
|
/* processed incident DSF measurements */ |
| 100 |
|
extern RBFNODE *dsf_list; |
| 153 |
|
/* Compute grid position from normalized input/output vector */ |
| 154 |
|
extern void pos_from_vec(int pos[2], const FVECT vec); |
| 155 |
|
|
| 156 |
< |
/* Evaluate RBF for DSF at the given normalized outgoing direction */ |
| 156 |
> |
/* Evaluate BSDF at the given normalized outgoing direction */ |
| 157 |
|
extern double eval_rbfrep(const RBFNODE *rp, const FVECT outvec); |
| 158 |
|
|
| 159 |
|
/* Insert a new directional scattering function in our global list */ |
| 197 |
|
|
| 198 |
|
/* Find edge(s) for interpolating the given vector, applying symmetry */ |
| 199 |
|
extern int get_interp(MIGRATION *miga[3], FVECT invec); |
| 200 |
+ |
|
| 201 |
+ |
/* Return single-lobe specular RBF for the given incident direction */ |
| 202 |
+ |
extern RBFNODE * def_rbf_spec(const FVECT invec); |
| 203 |
|
|
| 204 |
|
/* Advect and allocate new RBF along edge (internal call) */ |
| 205 |
|
extern RBFNODE * e_advect_rbf(const MIGRATION *mig, |
