--- ray/src/cv/tmesh2rad.c 1994/03/22 08:54:23 2.4 +++ ray/src/cv/tmesh2rad.c 1994/06/22 12:35:58 2.8 @@ -34,9 +34,10 @@ static char SCCSid[] = "$SunId$ LBL"; #include "standard.h" +#include "tmesh.h" + #define VOIDID "void" /* this is defined in object.h */ -#define CALNAME "tmesh.cal" /* the name of our auxiliary file */ #define PATNAME "T-pat" /* triangle pattern name (reused) */ #define TEXNAME "T-nor" /* triangle texture name (reused) */ @@ -54,8 +55,6 @@ typedef struct { VERTEX *vlist = NULL; /* our vertex list */ int nverts = 0; /* number of vertices in our list */ -typedef FLOAT BARYCCM[3][4]; - #define novert(i) ((i)<0|(i)>=nverts || !(vlist[i].flags&V_DEFINED)) #define CHUNKSIZ 128 /* vertex allocation chunk size */ @@ -205,33 +204,37 @@ register VERTEX *v1, *v2, *v3; { static int ntri = 0; BARYCCM bvecs; + FLOAT bvm[3][3]; + register int i; /* compute barycentric coordinates */ if (v1->flags & v2->flags & v3->flags & (V_HASINDX|V_HASNORM)) - if (comp_baryc(bvecs, v1->pos, v2->pos, v3->pos) < 0) + if (comp_baryc(&bvecs, v1->pos, v2->pos, v3->pos) < 0) return; /* put out texture (if any) */ if (v1->flags & v2->flags & v3->flags & V_HASNORM) { printf("\n%s texfunc %s\n", mod, TEXNAME); mod = TEXNAME; - printf("4 dx dy dz %s\n", CALNAME); - printf("0\n21\n"); - put_baryc(bvecs); - printf("\t%14.12g %14.12g %14.12g\n", - v1->nor[0], v2->nor[0], v3->nor[0]); - printf("\t%14.12g %14.12g %14.12g\n", - v1->nor[1], v2->nor[1], v3->nor[1]); - printf("\t%14.12g %14.12g %14.12g\n", - v1->nor[2], v2->nor[2], v3->nor[2]); + printf("4 dx dy dz %s\n", TCALNAME); + printf("0\n"); + for (i = 0; i < 3; i++) { + bvm[i][0] = v1->nor[i]; + bvm[i][1] = v2->nor[i]; + bvm[i][2] = v3->nor[i]; + } + put_baryc(&bvecs, bvm, 3); } /* put out pattern (if any) */ if (*pn && (v1->flags & v2->flags & v3->flags & V_HASINDX)) { printf("\n%s colorpict %s\n", mod, PATNAME); mod = PATNAME; - printf("7 noneg noneg noneg %s %s u v\n", pn, CALNAME); - printf("0\n18\n"); - put_baryc(bvecs); - printf("\t%f %f %f\n", v1->ndx[0], v2->ndx[0], v3->ndx[0]); - printf("\t%f %f %f\n", v1->ndx[1], v2->ndx[1], v3->ndx[1]); + printf("7 noneg noneg noneg %s %s u v\n", pn, TCALNAME); + printf("0\n"); + for (i = 0; i < 2; i++) { + bvm[i][0] = v1->ndx[i]; + bvm[i][1] = v2->ndx[i]; + bvm[i][2] = v3->ndx[i]; + } + put_baryc(&bvecs, bvm, 2); } /* put out triangle */ printf("\n%s polygon %s.%d\n", mod, obj, ++ntri); @@ -239,56 +242,6 @@ register VERTEX *v1, *v2, *v3; printf("%18.12g %18.12g %18.12g\n", v1->pos[0],v1->pos[1],v1->pos[2]); printf("%18.12g %18.12g %18.12g\n", v2->pos[0],v2->pos[1],v2->pos[2]); printf("%18.12g %18.12g %18.12g\n", v3->pos[0],v3->pos[1],v3->pos[2]); -} - - -int -comp_baryc(bcm, v1, v2, v3) /* compute barycentric vectors */ -register BARYCCM bcm; -FLOAT *v1, *v2, *v3; -{ - FLOAT *vt; - FVECT va, vab, vcb; - double d; - register int i, j; - - for (j = 0; j < 3; j++) { - for (i = 0; i < 3; i++) { - vab[i] = v1[i] - v2[i]; - vcb[i] = v3[i] - v2[i]; - } - d = DOT(vcb,vcb); - if (d <= FTINY) - return(-1); - d = DOT(vcb,vab)/d; - for (i = 0; i < 3; i++) - va[i] = vab[i] - vcb[i]*d; - d = DOT(va,va); - if (d <= FTINY) - return(-1); - for (i = 0; i < 3; i++) { - va[i] /= d; - bcm[j][i] = va[i]; - } - bcm[j][3] = -DOT(v2,va); - /* rotate vertices */ - vt = v1; - v1 = v2; - v2 = v3; - v3 = vt; - } - return(0); -} - - -put_baryc(bcm) /* put barycentric coord. vectors */ -register BARYCCM bcm; -{ - register int i; - - for (i = 0; i < 3; i++) - printf("%14.8f %14.8f %14.8f %14.8f\n", - bcm[i][0], bcm[i][1], bcm[i][2], bcm[i][3]); }