| 10 |
|
#define _SM_H_ |
| 11 |
|
|
| 12 |
|
#include "rhd_sample.h" |
| 13 |
– |
#include "sm_stree.h" |
| 13 |
|
|
| 14 |
+ |
|
| 15 |
|
#ifndef TRUE |
| 16 |
|
#define TRUE 1 |
| 17 |
|
#define FALSE 0 |
| 18 |
|
#endif |
| 19 |
|
|
| 20 |
< |
#define P_REPLACE_EPS 0.5 |
| 20 |
> |
#define S_REPLACE_EPS 0.06 /* if (distance on sphere between sample |
| 21 |
> |
and a base point) < S_REPLACE_EPS, |
| 22 |
> |
replace base |
| 23 |
> |
*/ |
| 24 |
> |
#define S_REPLACE_SCALE (5.*5.) /* if (distance to new point squared) is |
| 25 |
> |
> (triangle edge length squared* |
| 26 |
> |
S_REPLACE_SCALE):for all edges/triangle |
| 27 |
> |
vertices: new point is puncture |
| 28 |
> |
point: dont add |
| 29 |
> |
*/ |
| 30 |
> |
#define S_REPLACE_TRI 2e-8 /* .052 radians to the sixth power */ |
| 31 |
> |
|
| 32 |
|
#define SQRT3_2 0.8660254 |
| 33 |
|
|
| 34 |
< |
#define MAX_EDGES 200 |
| 35 |
< |
|
| 25 |
< |
#define SM_INVALID -1 |
| 26 |
< |
#define SM_DEFAULT 0 |
| 27 |
< |
#define SM_EXTRA_POINTS 5 |
| 34 |
> |
#define SM_DEFAULT 0 |
| 35 |
> |
#define SM_EXTRA_POINTS 8 |
| 36 |
|
#define SM_EXTRA_VERTS SM_EXTRA_POINTS |
| 29 |
– |
#define SM_POINTSIZ (3*sizeof(float)+ sizeof(int4)) |
| 30 |
– |
#define SM_POINT_SPACE SM_EXTRA_POINTS * SM_POINTSIZ |
| 37 |
|
|
| 38 |
< |
#define SM_INC_PERCENT 0.60 |
| 38 |
> |
#define SM_INC_PERCENT 0.60 /* If number of new triangles added |
| 39 |
> |
since last full redraw is > |
| 40 |
> |
(SM_INC_PERCENT * total triangles) |
| 41 |
> |
do full redraw instead of incremental |
| 42 |
> |
*/ |
| 43 |
> |
|
| 44 |
|
#define SM_VIEW_FRAC 0.1 |
| 45 |
|
|
| 46 |
|
|
| 51 |
|
int verts[2]; |
| 52 |
|
int tris[2]; |
| 53 |
|
} EDGE; |
| 54 |
+ |
|
| 55 |
|
#define E_NTH_VERT(e,i) ((e>0)?Edges[(e)].verts[(i)]:Edges[-(e)].verts[(1-i)]) |
| 56 |
|
#define SET_E_NTH_VERT(e,i,v) if(e>0) Edges[(e)].verts[(i)]=(v); \ |
| 57 |
|
else Edges[-(e)].verts[(1-i)]=(v) |
| 58 |
|
#define E_NTH_TRI(e,i) ((e>0)?Edges[(e)].tris[(i)]:Edges[-(e)].tris[(1-i)]) |
| 59 |
|
#define SET_E_NTH_TRI(e,i,v) if(e>0) Edges[(e)].tris[(i)]=(v); \ |
| 60 |
|
else Edges[-(e)].tris[(1-i)]=(v) |
| 49 |
– |
#define eNew_edge() (((Ecnt) < MAX_EDGES)?(++Ecnt):SM_INVALID) |
| 61 |
|
#define eClear_edges() (Ecnt = 0) |
| 62 |
|
|
| 63 |
|
#define FOR_ALL_EDGES(i) for((i)=1; (i) <= Ecnt; i++) |
| 77 |
|
#define T_NTH_V(t,i) ((t)->verts[(i)]) |
| 78 |
|
#define T_WHICH_V(t,i) \ |
| 79 |
|
(T_NTH_V(t,0)==(i)?0:T_NTH_V(t,1)==(i)?1:T_NTH_V(t,2)==(i)?2:-1) |
| 80 |
< |
#define T_NEXT_FREE(t) ((t)->verts[0]) |
| 81 |
< |
#define T_VALID_FLAG(t) ((t)->verts[1]) |
| 80 |
> |
#define T_NEXT_FREE(t) ((t)->nbrs[0]) |
| 81 |
> |
#define T_VALID_FLAG(t) ((t)->nbrs[1]) |
| 82 |
|
#define T_IS_VALID(t) (T_VALID_FLAG(t)!=-1) |
| 83 |
< |
#define T_FLAGS 4 |
| 73 |
< |
#define T_FLAG_BYTES T_FLAGS/8.0 |
| 74 |
< |
#define T_TOTAL_FLAG_BYTES(c) ((((c)+31)>>5)*sizeof(int4)) |
| 83 |
> |
#define T_FLAGS 3 |
| 84 |
|
|
| 85 |
|
typedef struct _SM { |
| 86 |
|
FVECT view_center; /* Canonical view center defining unit sphere */ |
| 87 |
< |
RSAMP *samples; /* Sample point information */ |
| 88 |
< |
STREE locator; /* spherical quadtree for point/triangle location */ |
| 87 |
> |
SAMP *samples; /* Sample point information */ |
| 88 |
> |
STREE locator; /* spherical quadtree for point/triangle location */ |
| 89 |
|
int max_tris; /* Maximum number of triangles */ |
| 90 |
< |
int tri_cnt; /* Total number of tris ever alloc at one time*/ |
| 91 |
< |
int num_tris; /* Current number of sample (nonbase)triangles */ |
| 90 |
> |
int num_tri; /* Current number of triangles */ |
| 91 |
> |
int sample_tris; /* Current number of non-base triangles*/ |
| 92 |
|
int free_tris; /* pointer to free_list */ |
| 93 |
|
int max_verts; /* Maximum number of vertices in the mesh */ |
| 94 |
|
TRI *tris; /* Pointer to list of triangle structs */ |
| 95 |
|
VERT *verts; /* List of vertices */ |
| 96 |
|
int4 *flags[T_FLAGS]; /* Bit 0 set if active(in current frustum) */ |
| 97 |
< |
/* Bit 1 set if not rendered since created */ |
| 98 |
< |
/* Bit 2 set if base triangle */ |
| 90 |
< |
/* Bit 3 set used for LRU replacement */ |
| 91 |
< |
char *base; /* Allocated space */ |
| 97 |
> |
/* Bit 1 set if not rendered since created */ |
| 98 |
> |
/* Bit 2 set if base triangle */ |
| 99 |
|
}SM; |
| 100 |
|
|
| 101 |
|
#define T_ACTIVE_FLAG 0 |
| 102 |
|
#define T_NEW_FLAG 1 |
| 103 |
|
#define T_BASE_FLAG 2 |
| 97 |
– |
#define T_LRU_FLAG 3 |
| 104 |
|
|
| 105 |
|
#define SM_VIEW_CENTER(m) ((m)->view_center) |
| 106 |
|
#define SM_SAMP(m) ((m)->samples) |
| 107 |
|
#define SM_LOCATOR(m) (&((m)->locator)) |
| 108 |
|
#define SM_MAX_TRIS(m) ((m)->max_tris) |
| 109 |
< |
#define SM_TRI_CNT(m) ((m)->tri_cnt) |
| 110 |
< |
#define SM_NUM_TRIS(m) ((m)->num_tris) |
| 109 |
> |
#define SM_NUM_TRI(m) ((m)->num_tri) |
| 110 |
> |
#define SM_SAMPLE_TRIS(m) ((m)->sample_tris) |
| 111 |
|
#define SM_FREE_TRIS(m) ((m)->free_tris) |
| 112 |
|
#define SM_MAX_VERTS(m) ((m)->max_verts) |
| 113 |
|
#define SM_TRIS(m) ((m)->tris) |
| 114 |
|
#define SM_VERTS(m) ((m)->verts) |
| 115 |
|
#define SM_NTH_FLAGS(m,n) ((m)->flags[(n)]) |
| 116 |
< |
#define SM_BASE(m) ((m)->base) |
| 116 |
> |
#define SM_FLAGS(m) ((m)->flags) |
| 117 |
|
|
| 112 |
– |
#define TF_OFFSET(n) ((n) >> 5) |
| 113 |
– |
#define TF_BIT(n) ((n) & 0x1f) |
| 114 |
– |
#define SM_IS_NTH_T_FLAG(sm,n,f) (SM_NTH_FLAGS(sm,f)[TF_OFFSET(n)] & (0x1 <<TF_BIT(n))) |
| 115 |
– |
#define SM_SET_NTH_T_FLAG(sm,n,f) (SM_NTH_FLAGS(sm,f)[TF_OFFSET(n)] |= (0x1<<TF_BIT(n))) |
| 116 |
– |
#define SM_CLEAR_NTH_T_FLAG(sm,n,f) (SM_NTH_FLAGS(sm,f)[TF_OFFSET(n)] &= ~(0x1<<TF_BIT(n))) |
| 118 |
|
|
| 119 |
+ |
#define SM_IS_NTH_T_FLAG(sm,n,f) IS_FLAG(SM_NTH_FLAGS(sm,f),n) |
| 120 |
+ |
#define SM_SET_NTH_T_FLAG(sm,n,f) SET_FLAG(SM_NTH_FLAGS(sm,f),n) |
| 121 |
+ |
#define SM_CLR_NTH_T_FLAG(sm,n,f) CLR_FLAG(SM_NTH_FLAGS(sm,f),n) |
| 122 |
+ |
|
| 123 |
|
#define SM_IS_NTH_T_ACTIVE(sm,n) SM_IS_NTH_T_FLAG(sm,n,T_ACTIVE_FLAG) |
| 124 |
|
#define SM_IS_NTH_T_BASE(sm,n) SM_IS_NTH_T_FLAG(sm,n,T_BASE_FLAG) |
| 125 |
|
#define SM_IS_NTH_T_NEW(sm,n) SM_IS_NTH_T_FLAG(sm,n,T_NEW_FLAG) |
| 121 |
– |
#define SM_IS_NTH_T_LRU(sm,n) SM_IS_NTH_T_FLAG(sm,n,T_LRU_FLAG) |
| 126 |
|
|
| 127 |
|
#define SM_SET_NTH_T_ACTIVE(sm,n) SM_SET_NTH_T_FLAG(sm,n,T_ACTIVE_FLAG) |
| 128 |
|
#define SM_SET_NTH_T_BASE(sm,n) SM_SET_NTH_T_FLAG(sm,n,T_BASE_FLAG) |
| 129 |
< |
#define SM_SET_NTH_T_NEW(sm,n) SM_SET_NTH_T_FLAG(sm,n,T_NEW_FLAG) |
| 126 |
< |
#define SM_SET_NTH_T_LRU(sm,n) SM_SET_NTH_T_FLAG(sm,n,T_LRU_FLAG) |
| 129 |
> |
#define SM_SET_NTH_T_NEW(sm,n) SM_SET_NTH_T_FLAG(sm,n,T_NEW_FLAG) |
| 130 |
|
|
| 131 |
< |
#define SM_CLEAR_NTH_T_ACTIVE(sm,n) SM_CLEAR_NTH_T_FLAG(sm,n,T_ACTIVE_FLAG) |
| 132 |
< |
#define SM_CLEAR_NTH_T_BASE(sm,n) SM_CLEAR_NTH_T_FLAG(sm,n,T_BASE_FLAG) |
| 133 |
< |
#define SM_CLEAR_NTH_T_NEW(sm,n) SM_CLEAR_NTH_T_FLAG(sm,n,T_NEW_FLAG) |
| 131 |
< |
#define SM_CLEAR_NTH_T_LRU(sm,n) SM_CLEAR_NTH_T_FLAG(sm,n,T_LRU_FLAG) |
| 131 |
> |
#define SM_CLR_NTH_T_ACTIVE(sm,n) SM_CLR_NTH_T_FLAG(sm,n,T_ACTIVE_FLAG) |
| 132 |
> |
#define SM_CLR_NTH_T_BASE(sm,n) SM_CLR_NTH_T_FLAG(sm,n,T_BASE_FLAG) |
| 133 |
> |
#define SM_CLR_NTH_T_NEW(sm,n) SM_CLR_NTH_T_FLAG(sm,n,T_NEW_FLAG) |
| 134 |
|
|
| 135 |
|
#define SM_NTH_TRI(m,n) (&(SM_TRIS(m)[(n)])) |
| 136 |
|
#define SM_NTH_VERT(m,n) (SM_VERTS(m)[(n)]) |
| 135 |
– |
#define SM_FREE_TRI_ID(m,n) (n = SM_FREE_TRIS(m)==-1? \ |
| 136 |
– |
(SM_TRI_CNT(m)<SM_MAX_TRIS(m)?SM_TRI_CNT(m)++:-1):(n=SM_FREE_TRIS(m), \ |
| 137 |
– |
SM_FREE_TRIS(m)=T_NEXT_FREE(SM_NTH_TRI(m,SM_FREE_TRIS(m))),n)) |
| 137 |
|
|
| 138 |
< |
#define SM_SAMP_BASE(m) RS_BASE(SM_SAMP(m)) |
| 139 |
< |
#define SM_SAMP_FREE(m) RS_FREE(SM_SAMP(m)) |
| 140 |
< |
#define SM_SAMP_EOL(m) RS_EOL(SM_SAMP(m)) |
| 141 |
< |
#define SM_MAX_SAMP(m) RS_MAX_SAMP(SM_SAMP(m)) |
| 142 |
< |
#define SM_MAX_AUX_PT(m) RS_MAX_AUX_PT(SM_SAMP(m)) |
| 143 |
< |
#define SM_NTH_WV(m,i) RS_NTH_W_PT(SM_SAMP(m),i) |
| 144 |
< |
#define SM_NTH_W_DIR(m,i) RS_NTH_W_DIR(SM_SAMP(m),i) |
| 145 |
< |
#define SM_NTH_RGB(m,i) RS_NTH_RGB(SM_SAMP(m),i) |
| 146 |
< |
#define SM_RGB(m) RS_RGB(SM_SAMP(m)) |
| 147 |
< |
#define SM_BRT(m) RS_BRT(SM_SAMP(m)) |
| 148 |
< |
#define SM_NTH_BRT(m,i) RS_NTH_BRT(SM_SAMP(m),i) |
| 149 |
< |
#define SM_CHR(m) RS_CHR(SM_SAMP(m)) |
| 150 |
< |
#define SM_NTH_CHR(m,i) RS_NTH_CHR(SM_SAMP(m),i) |
| 151 |
< |
#define SM_NUM_SAMP(m) RS_NUM_SAMP(SM_SAMP(m)) |
| 153 |
< |
#define SM_TONE_MAP(m) RS_TONE_MAP(SM_SAMP(m)) |
| 138 |
> |
#define SM_MAX_SAMP(m) S_MAX_SAMP(SM_SAMP(m)) |
| 139 |
> |
#define SM_MAX_POINTS(m) S_MAX_POINTS(SM_SAMP(m)) |
| 140 |
> |
#define SM_SAMP_BASE(m) S_BASE(SM_SAMP(m)) |
| 141 |
> |
#define SM_NTH_WV(m,i) S_NTH_W_PT(SM_SAMP(m),i) |
| 142 |
> |
#define SM_NTH_W_DIR(m,i) S_NTH_W_DIR(SM_SAMP(m),i) |
| 143 |
> |
#define SM_DIR_ID(m,i) (SM_NTH_W_DIR(m,i)==-1) |
| 144 |
> |
#define SM_NTH_RGB(m,i) S_NTH_RGB(SM_SAMP(m),i) |
| 145 |
> |
#define SM_RGB(m) S_RGB(SM_SAMP(m)) |
| 146 |
> |
#define SM_BRT(m) S_BRT(SM_SAMP(m)) |
| 147 |
> |
#define SM_NTH_BRT(m,i) S_NTH_BRT(SM_SAMP(m),i) |
| 148 |
> |
#define SM_CHR(m) S_CHR(SM_SAMP(m)) |
| 149 |
> |
#define SM_NTH_CHR(m,i) S_NTH_CHR(SM_SAMP(m),i) |
| 150 |
> |
#define SM_NUM_SAMP(m) S_NUM_SAMP(SM_SAMP(m)) |
| 151 |
> |
#define SM_TONE_MAP(m) S_TONE_MAP(SM_SAMP(m)) |
| 152 |
|
|
| 153 |
|
#define SM_ALLOWED_VIEW_CHANGE(m) (SM_NUM_SAMP(m)/smDist_sum*SM_VIEW_FRAC) |
| 154 |
|
|
| 155 |
< |
#define SM_FOR_ALL_FLAGGED_TRIS(m,i,w,b) for(i=0,i=smNext_tri_flag_set(m,i,w,b);i < SM_TRI_CNT(m);i++,i=smNext_tri_flag_set(m,i,w,b)) |
| 155 |
> |
#define SM_FOR_ALL_FLAGGED_TRIS(m,i,w,b) for(i=smNext_tri_flag_set(m,0,w,b); \ |
| 156 |
> |
i < SM_NUM_TRI(m); i=smNext_tri_flag_set(m,i+1,w,b)) |
| 157 |
|
|
| 158 |
|
#define SM_FOR_ALL_ACTIVE_TRIS(m,i) SM_FOR_ALL_FLAGGED_TRIS(m,i,T_ACTIVE_FLAG,0) |
| 159 |
|
#define SM_FOR_ALL_NEW_TRIS(m,i) SM_FOR_ALL_FLAGGED_TRIS(m,i,T_NEW_FLAG,0) |
| 160 |
|
#define SM_FOR_ALL_BASE_TRIS(m,i) SM_FOR_ALL_FLAGGED_TRIS(m,i,T_BASE_FLAG,0) |
| 161 |
< |
#define SM_FOR_ALL_VALID_TRIS(m,i) for((i)=0,(i)=smNext_valid_tri(m,i);(i)< \ |
| 162 |
< |
SM_TRI_CNT(m); (i)++,(i)= smNext_valid_tri(m,i)) |
| 161 |
> |
#define SM_FOR_ALL_VALID_TRIS(m,i) for(i=smNext_valid_tri(m,0); \ |
| 162 |
> |
i < SM_NUM_TRI(m); i=smNext_valid_tri(m,i+1)) |
| 163 |
|
|
| 164 |
|
#define SM_FOR_ALL_ACTIVE_FG_TRIS(m,i) SM_FOR_ALL_FLAGGED_TRIS(m,i,T_ACTIVE_FLAG,1) |
| 165 |
|
|
| 170 |
|
t!=SM_NTH_TRI(sm,SM_NTH_VERT(sm,id)); t=smTri_next_ccw_nbr(sm,t,id)) |
| 171 |
|
|
| 172 |
|
#define SM_INVALID_SAMP_ID(sm,id) (((id) < 0) || ((id) >= SM_MAX_SAMP(sm))) |
| 173 |
< |
#define SM_INVALID_POINT_ID(sm,id) (((id) < 0) || ((id) >= SM_MAX_AUX_PT(sm))) |
| 175 |
< |
#define SM_T_CENTROID(sm,t,c) tri_centroid(SM_NTH_WV(sm,T_NTH_V(t,0)),SM_NTH_WV(sm,T_NTH_V(t,1)),SM_NTH_WV(sm,T_NTH_V(t,2)),c) |
| 173 |
> |
#define SM_INVALID_POINT_ID(sm,id) (((id) < 0) || ((id) >= SM_MAX_POINTS(sm))) |
| 174 |
|
#define SM_T_NTH_WV(sm,t,i) (SM_NTH_WV(sm,T_NTH_V(t,i))) |
| 175 |
|
|
| 176 |
|
#define SM_BASE_ID(s,i) \ |
| 177 |
< |
((i) >= RS_MAX_SAMP(SM_SAMP(s)) && (i) < RS_MAX_AUX_PT(SM_SAMP(s))) |
| 177 |
> |
((i) >= S_MAX_SAMP(SM_SAMP(s)) && (i) < S_MAX_BASE_PT(SM_SAMP(s))) |
| 178 |
|
|
| 179 |
|
#define SM_BG_SAMPLE(sm,i) (SM_NTH_W_DIR(sm,i)==-1) |
| 180 |
|
|
| 181 |
< |
#define SM_BG_TRI(sm,i) (SM_BG_SAMPLE(sm,T_NTH_V(SM_NTH_TRI(sm,i),0)) || \ |
| 181 |
> |
#define SM_BG_TRI(sm,i) (SM_BG_SAMPLE(sm,T_NTH_V(SM_NTH_TRI(sm,i),0)) && \ |
| 182 |
> |
SM_BG_SAMPLE(sm,T_NTH_V(SM_NTH_TRI(sm,i),1)) && \ |
| 183 |
> |
SM_BG_SAMPLE(sm,T_NTH_V(SM_NTH_TRI(sm,i),2))) |
| 184 |
> |
#define SM_MIXED_TRI(sm,i) (SM_BG_SAMPLE(sm,T_NTH_V(SM_NTH_TRI(sm,i),0)) || \ |
| 185 |
|
SM_BG_SAMPLE(sm,T_NTH_V(SM_NTH_TRI(sm,i),1)) || \ |
| 186 |
|
SM_BG_SAMPLE(sm,T_NTH_V(SM_NTH_TRI(sm,i),2))) |
| 187 |
|
|
| 188 |
|
#define SM_FOR_ALL_SAMPLES(sm,i) for((i)=0;i < SM_NUM_SAMP(sm);(i)++) |
| 189 |
|
|
| 190 |
+ |
#define smInit_locator(sm,c) (stInit(SM_LOCATOR(sm)), \ |
| 191 |
+ |
ST_SET_CENTER(SM_LOCATOR(sm),c)) |
| 192 |
+ |
#define smClear_locator(sm) stClear(SM_LOCATOR(sm)) |
| 193 |
+ |
#define smAlloc_locator(sm) stAlloc(SM_LOCATOR(sm)) |
| 194 |
+ |
#define smFree_locator(sm) stClear(SM_LOCATOR(sm)) |
| 195 |
+ |
#define smPointLocateCell(sm,pt) stPoint_locate(SM_LOCATOR(sm),pt) |
| 196 |
+ |
#define smUnalloc_samp(sm,id) sUnalloc_samp(SM_SAMP(sm),id) |
| 197 |
+ |
#define smFree_samples(sm) sFree(SM_SAMP(sm)) |
| 198 |
+ |
#define smClear_samples(sm) sClear(SM_SAMP(sm)) |
| 199 |
+ |
#define smInit_samples(sm) sInit(SM_SAMP(sm)) |
| 200 |
+ |
|
| 201 |
+ |
|
| 202 |
+ |
#define smClear_vert(sm,id) (SM_NTH_VERT(sm,id) = INVALID) |
| 203 |
+ |
|
| 204 |
+ |
#define SQRT3_INV 0.5773502692 |
| 205 |
+ |
|
| 206 |
|
typedef struct _T_DEPTH { |
| 207 |
|
int tri; |
| 208 |
|
double depth; |
| 209 |
|
}T_DEPTH; |
| 210 |
|
|
| 211 |
+ |
typedef struct _RT_ARGS_{ |
| 212 |
+ |
FVECT orig,dir; |
| 213 |
+ |
int t_id; |
| 214 |
+ |
OBJECT *os; |
| 215 |
+ |
}RT_ARGS; |
| 216 |
|
|
| 217 |
+ |
|
| 218 |
+ |
typedef struct _ADD_ARGS { |
| 219 |
+ |
int t_id; |
| 220 |
+ |
OBJECT *del_set; |
| 221 |
+ |
}ADD_ARGS; |
| 222 |
+ |
|
| 223 |
|
extern SM *smMesh; |
| 224 |
|
extern int smNew_tri_cnt; |
| 225 |
|
extern double smDist_sum; |
| 226 |
|
|
| 227 |
+ |
|
| 228 |
|
#ifdef TEST_DRIVER |
| 229 |
|
extern VIEW View; |
| 230 |
|
extern VIEW Current_View; |
| 231 |
< |
extern int Pick_tri,Picking; |
| 231 |
> |
extern int Pick_tri,Picking,Pick_samp; |
| 232 |
|
extern FVECT Pick_point[500],Pick_origin,Pick_dir; |
| 233 |
|
extern FVECT Pick_v0[500],Pick_v1[500],Pick_v2[500]; |
| 234 |
+ |
extern int Pick_q[500]; |
| 235 |
|
extern FVECT P0,P1,P2; |
| 236 |
|
extern int Pick_cnt; |
| 237 |
|
extern FVECT FrustumNear[4],FrustumFar[4]; |
| 238 |
|
#endif |
| 239 |
|
|
| 240 |
< |
#ifdef DEBUG |
| 241 |
< |
extern int Malloc_cnt; |
| 242 |
< |
#endif |
| 240 |
> |
|
| 241 |
> |
/* |
| 242 |
> |
* int |
| 243 |
> |
* smInit(n) : Initialize/clear data structures for n entries |
| 244 |
> |
* int n; |
| 245 |
> |
* |
| 246 |
> |
* Initialize sampL and other data structures for at least n samples. |
| 247 |
> |
* If n is 0, then free data structures. Return number actually allocated. |
| 248 |
> |
* |
| 249 |
> |
* |
| 250 |
> |
* int |
| 251 |
> |
* smNewSamp(c, p, v) : register new sample point and return index |
| 252 |
> |
* COLR c; : pixel color (RGBE) |
| 253 |
> |
* FVECT p; : world intersection point |
| 254 |
> |
* FVECT v; : ray direction vector |
| 255 |
> |
* |
| 256 |
> |
* Add new sample point to data structures, removing old values as necessary. |
| 257 |
> |
* New sample representation will be output in next call to smUpdate(). |
| 258 |
> |
* |
| 259 |
> |
* |
| 260 |
> |
* int |
| 261 |
> |
* smFindSamp(orig, dir): intersect ray with 3D rep. and find closest sample |
| 262 |
> |
* FVECT orig, dir; |
| 263 |
> |
* |
| 264 |
> |
* Find the closest sample to the given ray. Return -1 on failure. |
| 265 |
> |
* |
| 266 |
> |
* |
| 267 |
> |
* smClean() : display has been wiped clean |
| 268 |
> |
* |
| 269 |
> |
* Called after display has been effectively cleared, meaning that all |
| 270 |
> |
* geometry must be resent down the pipeline in the next call to smUpdate(). |
| 271 |
> |
* |
| 272 |
> |
* |
| 273 |
> |
* smUpdate(vp, qua) : update OpenGL output geometry for view vp |
| 274 |
> |
* VIEW *vp; : desired view |
| 275 |
> |
* int qua; : quality level (percentage on linear time scale) |
| 276 |
> |
* |
| 277 |
> |
* Draw new geometric representation using OpenGL calls. Assume that the |
| 278 |
> |
* view has already been set up and the correct frame buffer has been |
| 279 |
> |
* selected for drawing. The quality level is on a linear scale, where 100% |
| 280 |
> |
* is full (final) quality. It is not necessary to redraw geometry that has |
| 281 |
> |
* been output since the last call to smClean(). (The last view drawn will |
| 282 |
> |
* be vp==&odev.v each time.) |
| 283 |
> |
*/ |
| 284 |
> |
|
| 285 |
|
#endif |
| 286 |
|
|
| 287 |
|
|
