41 |
|
|
42 |
|
#define RBFALLOCB 10 /* RBF allocation block size */ |
43 |
|
|
44 |
< |
/* our loaded grid for this incident angle */ |
44 |
> |
/* our loaded grid or comparison DSFs */ |
45 |
|
GRIDVAL dsf_grid[GRIDRES][GRIDRES]; |
46 |
|
|
47 |
|
/* Start new DSF input grid */ |
83 |
|
|
84 |
|
pos_from_vec(pos, ovec); |
85 |
|
|
86 |
< |
dsf_grid[pos[0]][pos[1]].vsum += val; |
87 |
< |
dsf_grid[pos[0]][pos[1]].nval++; |
86 |
> |
dsf_grid[pos[0]][pos[1]].sum.v += val; |
87 |
> |
dsf_grid[pos[0]][pos[1]].sum.n++; |
88 |
|
} |
89 |
|
|
90 |
|
/* Compute minimum BSDF from histogram (does not clear) */ |
116 |
|
|
117 |
|
for (x = x0; x < x1; x++) |
118 |
|
for (y = y0; y < y1; y++) |
119 |
< |
if (dsf_grid[x][y].nval) |
119 |
> |
if (dsf_grid[x][y].sum.n) |
120 |
|
return(0); |
121 |
|
return(1); |
122 |
|
} |
134 |
|
memset(xvec, 0, sizeof(xvec)); |
135 |
|
for (x = x0; x < x1; x++) |
136 |
|
for (y = y0; y < y1; y++) |
137 |
< |
if ((n = dsf_grid[x][y].nval) > 0) { |
138 |
< |
double z = dsf_grid[x][y].vsum; |
137 |
> |
if ((n = dsf_grid[x][y].sum.n) > 0) { |
138 |
> |
double z = dsf_grid[x][y].sum.v; |
139 |
|
rMtx[0][0] += x*x*(double)n; |
140 |
|
rMtx[0][1] += x*y*(double)n; |
141 |
|
rMtx[0][2] += x*(double)n; |
158 |
|
sqerr = 0.0; /* compute mean squared error */ |
159 |
|
for (x = x0; x < x1; x++) |
160 |
|
for (y = y0; y < y1; y++) |
161 |
< |
if ((n = dsf_grid[x][y].nval) > 0) { |
162 |
< |
double d = A*x + B*y + C - dsf_grid[x][y].vsum/n; |
161 |
> |
if ((n = dsf_grid[x][y].sum.n) > 0) { |
162 |
> |
double d = A*x + B*y + C - dsf_grid[x][y].sum.v/n; |
163 |
|
sqerr += n*d*d; |
164 |
|
} |
165 |
|
if (sqerr <= nvs*SMOOTH_MSE) /* below absolute MSE threshold? */ |
179 |
|
/* compute average for region */ |
180 |
|
for (x = x0; x < x1; x++) |
181 |
|
for (y = y0; y < y1; y++) { |
182 |
< |
vtot += dsf_grid[x][y].vsum; |
183 |
< |
nv += dsf_grid[x][y].nval; |
182 |
> |
vtot += dsf_grid[x][y].sum.v; |
183 |
> |
nv += dsf_grid[x][y].sum.n; |
184 |
|
} |
185 |
|
if (!nv) { |
186 |
|
fprintf(stderr, "%s: internal - missing samples in create_lobe\n", |