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- added view3d_get_object_project_mat function, returns mat to project

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object cos into screenspace without mucking with gl matrices.
 - added view3d_project_ functions, take arguments instead of using
   globals
 - removed View3D.{mx,my,mxo,myo}
 - switch drawobject foreachScreenVert functions to use new projection
   functions
 - switch edge slide to use new projection functions, fixes erratic
   behavior (project was using wrong mat I believe)
 - bug fix in edgeslide, nearest edge to start was one-off
This commit is contained in:
Daniel Dunbar
2005-08-15 04:10:02 +00:00
parent 74623f33aa
commit 0c7f65d152
8 changed files with 183 additions and 154 deletions
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5
source/blender/include/BSE_view.h
View File

@@ -46,6 +46,11 @@ struct ScrArea;
void persp_general(int a);
void persp(int a);
void view3d_get_object_project_mat(struct ScrArea *area, struct Object *ob, float mat[4][4]);
void view3d_project_float(struct ScrArea *area, float *vec, float *adr, float mat[4][4]);
void view3d_project_short(struct ScrArea *area, float *vec, short *adr, float mat[4][4]);
void view3d_project_short_noclip(struct ScrArea *area, float *vec, short *adr, float mat[4][4]);
void initgrabz(float x, float y, float z);
void window_to_3d(float *vec, short mx, short my);
void project_short(float *vec, short *adr);

4
source/blender/makesdna/DNA_view3d_types.h
View File

@@ -115,9 +115,6 @@ typedef struct View3D {
float lens, grid, gridview, pad, near, far;
float ofs[3], cursor[3];
short mx, my; /* have to remain together, because used as single pointer */
short mxo, myo;
short gridlines, viewbut;
short gridflag;
short modeselect, menunr, texnr;
@@ -130,7 +127,6 @@ typedef struct View3D {
struct ListBase afterdraw;
/* drawflags, denoting state */
short zbuf, transp, xray, pad2;
} View3D;
/* View3D->flag */

93
source/blender/src/drawobject.c
View File

@@ -791,7 +791,7 @@ static void tekenvertslatt(short sel)
Lattice *lt;
BPoint *bp;
float size;
int a, uxt, u, vxt, v, wxt, w;
int a, u, v, w;
size= BIF_GetThemeValuef(TH_VERTEX_SIZE);
glPointSize(size);
@@ -807,12 +807,11 @@ static void tekenvertslatt(short sel)
if(lt->flag & LT_OUTSIDE) {
for(w=0; w<lt->pntsw; w++) {
if(w==0 || w==lt->pntsw-1) wxt= 1; else wxt= 0;
int wxt = (w==0 || w==lt->pntsw-1);
for(v=0; v<lt->pntsv; v++) {
if(v==0 || v==lt->pntsv-1) vxt= 1; else vxt= 0;
int vxt = (v==0 || v==lt->pntsv-1);
for(u=0; u<lt->pntsu; u++, bp++) {
if(u==0 || u==lt->pntsu-1) uxt= 1; else uxt= 0;
int uxt = (u==0 || u==lt->pntsu-1);
if(uxt || vxt || wxt) {
if(bp->hide==0) {
if((bp->f1 & 1)==sel) bglVertex3fv(bp->vec);
@@ -843,23 +842,16 @@ void lattice_foreachScreenVert(void (*func)(void *userData, BPoint *bp, int x, i
float mat[4][4];
short s[2];
areawinset(curarea->win);
persp(PERSP_VIEW);
mymultmatrix(G.obedit->obmat);
MTC_Mat4SwapMat4(G.vd->persmat, mat);
mygetsingmatrix(G.vd->persmat);
view3d_get_object_project_mat(curarea, G.obedit, mat);
for (i=0; i<N; i++) {
BPoint *bp = &editLatt->def[i];
if (bp->hide==0) {
project_short(bp->vec, s);
view3d_project_short(curarea, bp->vec, s, mat);
func(userData, bp, s[0], s[1]);
}
}
MTC_Mat4SwapMat4(G.vd->persmat, mat);
myloadmatrix(G.vd->viewmat);
}
@@ -969,14 +961,14 @@ static void drawlattice(Object *ob)
static void mesh_foreachScreenVert__mapFunc(void *userData, EditVert *eve, float *co, float *no_f, short *no_s)
{
struct { void (*func)(void *userData, EditVert *eve, int x, int y, int index); void *userData; int clipVerts; } *data = userData;
struct { void (*func)(void *userData, EditVert *eve, int x, int y, int index); void *userData; int clipVerts; float mat[4][4]; } *data = userData;
short s[2];
if (eve->h==0) {
if (data->clipVerts) {
project_short(co, s);
view3d_project_short(curarea, co, s, data->mat);
} else {
project_short_noclip(co, s);
view3d_project_short_noclip(curarea, co, s, data->mat);
}
data->func(data->userData, eve, s[0], s[1], (int) eve->prev);
@@ -984,10 +976,9 @@ static void mesh_foreachScreenVert__mapFunc(void *userData, EditVert *eve, float
}
void mesh_foreachScreenVert(void (*func)(void *userData, EditVert *eve, int x, int y, int index), void *userData, int clipVerts)
{
struct { void (*func)(void *userData, EditVert *eve, int x, int y, int index); void *userData; int clipVerts; } data;
struct { void (*func)(void *userData, EditVert *eve, int x, int y, int index); void *userData; int clipVerts; float mat[4][4]; } data;
int dmNeedsFree;
DerivedMesh *dm = editmesh_get_derived_cage(&dmNeedsFree);
float mat[4][4];
EditVert *eve, *preveve;
int index;
@@ -995,11 +986,7 @@ void mesh_foreachScreenVert(void (*func)(void *userData, EditVert *eve, int x, i
data.userData = userData;
data.clipVerts = clipVerts;
areawinset(curarea->win);
persp(PERSP_VIEW);
mymultmatrix(G.obedit->obmat);
MTC_Mat4SwapMat4(G.vd->persmat, mat);
mygetsingmatrix(G.vd->persmat);
view3d_get_object_project_mat(curarea, G.obedit, data.mat);
for (index=0,eve=G.editMesh->verts.first; eve; index++,eve= eve->next)
eve->prev = (EditVert*) index;
@@ -1009,9 +996,6 @@ void mesh_foreachScreenVert(void (*func)(void *userData, EditVert *eve, int x, i
for (preveve=NULL, eve=G.editMesh->verts.first; eve; preveve=eve, eve= eve->next)
eve->prev = preveve;
MTC_Mat4SwapMat4(G.vd->persmat, mat);
myloadmatrix(G.vd->viewmat);
if (dmNeedsFree) {
dm->release(dm);
}
@@ -1019,16 +1003,16 @@ void mesh_foreachScreenVert(void (*func)(void *userData, EditVert *eve, int x, i
static void mesh_foreachScreenEdge__mapFunc(void *userData, EditEdge *eed, float *v0co, float *v1co)
{
struct { void (*func)(void *userData, EditEdge *eed, int x0, int y0, int x1, int y1, int index); void *userData; int clipVerts; } *data = userData;
struct { void (*func)(void *userData, EditEdge *eed, int x0, int y0, int x1, int y1, int index); void *userData; int clipVerts; float mat[4][4]; } *data = userData;
short s[2][2];
if (eed->h==0) {
if (data->clipVerts==1) {
project_short(v0co, s[0]);
project_short(v1co, s[1]);
view3d_project_short(curarea, v0co, s[0], data->mat);
view3d_project_short(curarea, v1co, s[1], data->mat);
} else {
project_short_noclip(v0co, s[0]);
project_short_noclip(v1co, s[1]);
view3d_project_short_noclip(curarea, v0co, s[0], data->mat);
view3d_project_short_noclip(curarea, v1co, s[1], data->mat);
if (data->clipVerts==2) {
if (!(s[0][0]>=0 && s[0][1]>= 0 && s[0][0]<curarea->winx && s[0][1]<curarea->winy))
@@ -1042,10 +1026,9 @@ static void mesh_foreachScreenEdge__mapFunc(void *userData, EditEdge *eed, float
}
void mesh_foreachScreenEdge(void (*func)(void *userData, EditEdge *eed, int x0, int y0, int x1, int y1, int index), void *userData, int clipVerts)
{
struct { void (*func)(void *userData, EditEdge *eed, int x0, int y0, int x1, int y1, int index); void *userData; int clipVerts; } data;
struct { void (*func)(void *userData, EditEdge *eed, int x0, int y0, int x1, int y1, int index); void *userData; int clipVerts; float mat[4][4]; } data;
int dmNeedsFree;
DerivedMesh *dm = editmesh_get_derived_cage(&dmNeedsFree);
float mat[4][4];
EditEdge *eed, *preveed;
int index;
@@ -1053,11 +1036,7 @@ void mesh_foreachScreenEdge(void (*func)(void *userData, EditEdge *eed, int x0,
data.userData = userData;
data.clipVerts = clipVerts;
areawinset(curarea->win);
persp(PERSP_VIEW);
mymultmatrix(G.obedit->obmat);
MTC_Mat4SwapMat4(G.vd->persmat, mat);
mygetsingmatrix(G.vd->persmat);
view3d_get_object_project_mat(curarea, G.obedit, data.mat);
for (index=0,eed=G.editMesh->edges.first; eed; index++,eed= eed->next)
eed->prev = (EditEdge*) index;
@@ -1067,9 +1046,6 @@ void mesh_foreachScreenEdge(void (*func)(void *userData, EditEdge *eed, int x0,
for (preveed=NULL, eed=G.editMesh->edges.first; eed; preveed=eed, eed= eed->next)
eed->prev = preveed;
MTC_Mat4SwapMat4(G.vd->persmat, mat);
myloadmatrix(G.vd->viewmat);
if (dmNeedsFree) {
dm->release(dm);
}
@@ -1077,32 +1053,27 @@ void mesh_foreachScreenEdge(void (*func)(void *userData, EditEdge *eed, int x0,
static void mesh_foreachScreenFace__mapFunc(void *userData, EditFace *efa, float *cent, float *no)
{
struct { void (*func)(void *userData, EditFace *efa, int x, int y, int index); void *userData; } *data = userData;
struct { void (*func)(void *userData, EditFace *efa, int x, int y, int index); void *userData; float mat[4][4]; } *data = userData;
short s[2];
if (efa && efa->fgonf!=EM_FGON) {
project_short(cent, s);
view3d_project_short(curarea, cent, s, data->mat);
data->func(data->userData, efa, s[0], s[1], (int) efa->prev);
}
}
void mesh_foreachScreenFace(void (*func)(void *userData, EditFace *efa, int x, int y, int index), void *userData)
{
struct { void (*func)(void *userData, EditFace *efa, int x, int y, int index); void *userData; } data;
struct { void (*func)(void *userData, EditFace *efa, int x, int y, int index); void *userData; float mat[4][4]; } data;
int dmNeedsFree;
DerivedMesh *dm = editmesh_get_derived_cage(&dmNeedsFree);
float mat[4][4];
EditFace *efa, *prevefa;
int index = 0;
data.func = func;
data.userData = userData;
areawinset(curarea->win);
persp(PERSP_VIEW);
mymultmatrix(G.obedit->obmat);
MTC_Mat4SwapMat4(G.vd->persmat, mat);
mygetsingmatrix(G.vd->persmat);
view3d_get_object_project_mat(curarea, G.obedit, data.mat);
for (index=0,efa=G.editMesh->faces.first; efa; index++,efa= efa->next)
efa->prev = (EditFace*) index;
@@ -1112,9 +1083,6 @@ void mesh_foreachScreenFace(void (*func)(void *userData, EditFace *efa, int x, i
for (prevefa=NULL, efa=G.editMesh->faces.first; efa; prevefa=efa, efa= efa->next)
efa->prev = prevefa;
MTC_Mat4SwapMat4(G.vd->persmat, mat);
myloadmatrix(G.vd->viewmat);
if (dmNeedsFree) {
dm->release(dm);
}
@@ -1127,11 +1095,7 @@ void nurbs_foreachScreenVert(void (*func)(void *userData, Nurb *nu, BPoint *bp,
Nurb *nu;
int i;
areawinset(curarea->win);
persp(PERSP_VIEW);
mymultmatrix(G.obedit->obmat);
MTC_Mat4SwapMat4(G.vd->persmat, mat);
mygetsingmatrix(G.vd->persmat);
view3d_get_object_project_mat(curarea, G.obedit, mat);
for (nu= editNurb.first; nu; nu=nu->next) {
if((nu->type & 7)==CU_BEZIER) {
@@ -1139,11 +1103,11 @@ void nurbs_foreachScreenVert(void (*func)(void *userData, Nurb *nu, BPoint *bp,
BezTriple *bezt = &nu->bezt[i];
if(bezt->hide==0) {
project_short(bezt->vec[0], s);
view3d_project_short(curarea, bezt->vec[0], s, mat);
func(userData, nu, NULL, bezt, 0, s[0], s[1]);
project_short(bezt->vec[1], s);
view3d_project_short(curarea, bezt->vec[1], s, mat);
func(userData, nu, NULL, bezt, 1, s[0], s[1]);
project_short(bezt->vec[2], s);
view3d_project_short(curarea, bezt->vec[2], s, mat);
func(userData, nu, NULL, bezt, 2, s[0], s[1]);
}
}
@@ -1153,15 +1117,12 @@ void nurbs_foreachScreenVert(void (*func)(void *userData, Nurb *nu, BPoint *bp,
BPoint *bp = &nu->bp[i];
if(bp->hide==0) {
project_short(bp->vec, s);
view3d_project_short(curarea, bp->vec, s, mat);
func(userData, nu, bp, NULL, -1, s[0], s[1]);
}
}
}
}
MTC_Mat4SwapMat4(G.vd->persmat, mat);
myloadmatrix(G.vd->viewmat);
}
////

43
source/blender/src/drawview.c
View File

@@ -389,6 +389,8 @@ static void draw_bgpic(void)
y2= vb.ymax;
}
else {
float sco[2];
/* calc window coord */
initgrabz(0.0, 0.0, 0.0);
window_to_3d(vec, 1, 0);
@@ -397,16 +399,10 @@ static void draw_bgpic(void)
asp= ( (float)ima->ibuf->y)/(float)ima->ibuf->x;
/* This code below was lifted from project_short_noclip
* because that code fails if the point is to close to
* the near clipping plane but we don't really care about
* that here.
*/
vec[0]= vec[1]= vec[2]= 0.0; vec[3]= 1.0;
Mat4MulVec4fl(G.vd->persmat, vec);
cx= (curarea->winx/2.0)*(1 + vec[0]/vec[3]);
cy= (curarea->winy/2.0)*(1 + vec[1]/vec[3]);
vec[0] = vec[1] = vec[2] = 0.0;
view3d_project_float(curarea, vec, sco, G.vd->persmat);
cx = sco[0];
cy = sco[1];
x1= cx+ fac*(bgpic->xof-bgpic->size);
y1= cy+ asp*fac*(bgpic->yof-bgpic->size);
@@ -762,29 +758,26 @@ static void drawfloor(void)
static void drawcursor(void)
{
short mx,my,co[2];
if(G.f & G_PLAYANIM) return;
project_short( give_cursor(), &G.vd->mx);
G.vd->mxo= G.vd->mx;
G.vd->myo= G.vd->my;
if( G.vd->mx!=3200) {
project_short( give_cursor(), co);
mx = co[0];
my = co[1];
if(mx!=3200) {
setlinestyle(0);
cpack(0xFF);
circ((float)G.vd->mx, (float)G.vd->my, 10.0);
circ((float)mx, (float)my, 10.0);
setlinestyle(4);
cpack(0xFFFFFF);
circ((float)G.vd->mx, (float)G.vd->my, 10.0);
circ((float)mx, (float)my, 10.0);
setlinestyle(0);
cpack(0x0);
sdrawline(G.vd->mx-20, G.vd->my, G.vd->mx-5, G.vd->my);
sdrawline(G.vd->mx+5, G.vd->my, G.vd->mx+20, G.vd->my);
sdrawline(G.vd->mx, G.vd->my-20, G.vd->mx, G.vd->my-5);
sdrawline(G.vd->mx, G.vd->my+5, G.vd->mx, G.vd->my+20);
sdrawline(mx-20, my, mx-5, my);
sdrawline(mx+5, my, mx+20, my);
sdrawline(mx, my-20, mx, my-5);
sdrawline(mx, my+5, mx, my+20);
}
}
@@ -2090,7 +2083,7 @@ void drawview3dspace(ScrArea *sa, void *spacedata)
persp(PERSP_WIN); // set ortho
if(v3d->persp>1) drawviewborder();
drawcursor();
if(!(G.f & G_PLAYANIM)) drawcursor();
draw_view_icon();
ob= OBACT;

2
source/blender/src/editmesh_loop.c
View File

@@ -684,7 +684,7 @@ void KnifeSubdivide(char mode)
/* seg_intersect() Determines if and where a mouse trail intersects an EditEdge */
short seg_intersect(EditEdge *e, CutCurve *c, int len)
static short seg_intersect(EditEdge *e, CutCurve *c, int len)
{
#define MAXSLOPE 100000
float x11, y11, x12=0, y12=0, x2max, x2min, y2max;

48
source/blender/src/editmesh_tools.c
View File

@@ -4290,13 +4290,13 @@ int EdgeSlide(short immediate, float imperc)
LinkNode *edgelist = NULL, *vertlist=NULL, *look;
GHash *vertgh;
SlideVert *tempsv;
float perc = 0, percp = 0,vertdist;
float perc = 0, percp = 0,vertdist, projectMat[4][4];
int i = 0,j, numsel, numadded=0, timesthrough = 0, vertsel=0, prop=1, cancel = 0;
short event, draw=1;
short mval[2], mvalo[2];
char str[128];
view3d_get_object_project_mat(curarea, G.obedit, projectMat);
mvalo[0] = -1; mvalo[1] = -1;
numsel =0;
@@ -4550,17 +4550,18 @@ int EdgeSlide(short immediate, float imperc)
BLI_linklist_free(edgelist,NULL);
return 0;
}
if(!sharesFace(tempsv->up,sv->up)){
EditEdge *swap;
swap = sv->up;
sv->up = sv->down;
sv->down = swap;
}
if(sv) {
float tempdist, co[2];
project_float(sv->origvert.co, co);
if(!sharesFace(tempsv->up,sv->up)){
EditEdge *swap;
swap = sv->up;
sv->up = sv->down;
sv->down = swap;
}
view3d_project_float(curarea, tempsv->origvert.co, co, projectMat);
tempdist = sqrt(pow(co[0] - mval[0],2)+pow(co[1] - mval[1],2));
@@ -4583,7 +4584,7 @@ int EdgeSlide(short immediate, float imperc)
/* For the % calculation */
short mval[2];
float labda, rc[2], len;
float v1[2], v2[2], v3[2];
float v2[2], v3[2];
EditVert *centerVert, *upVert, *downVert;
getmouseco_areawin(mval);
@@ -4617,17 +4618,9 @@ int EdgeSlide(short immediate, float imperc)
tempsv = BLI_ghash_lookup(vertgh,nearest);
getmouseco_areawin(mval);
v1[0]=(float)mval[0];
v1[1]=(float)mval[1];
centerVert = editedge_getSharedVert(tempsv->up, tempsv->down);
upVert = editedge_getOtherVert(tempsv->up, centerVert);
downVert = editedge_getOtherVert(tempsv->down, centerVert);
project_float(upVert->co, v2);
project_float(downVert->co, v3);
// Highlight the Control Edges
scrarea_do_windraw(curarea);
@@ -4642,18 +4635,21 @@ int EdgeSlide(short immediate, float imperc)
glEnd();
glPopMatrix();
view3d_project_float(curarea, upVert->co, v2, projectMat);
view3d_project_float(curarea, downVert->co, v3, projectMat);
/* Determine the % on which the loop should be cut */
rc[0]= v3[0]-v2[0];
rc[1]= v3[1]-v2[1];
len= rc[0]*rc[0]+ rc[1]*rc[1];
if (len==0) {len = 0.0001;}
labda= ( rc[0]*(v1[0]-v2[0]) + rc[1]*(v1[1]-v2[1]) )/len;
rc[0]= v3[0]-v2[0];
rc[1]= v3[1]-v2[1];
len= rc[0]*rc[0]+ rc[1]*rc[1];
if (len==0) {len = 0.0001;}
labda= ( rc[0]*(mval[0]-v2[0]) + rc[1]*(mval[1]-v2[1]) )/len;
if(labda<=0.0) labda=0.0;
else if(labda>=1.0)labda=1.0;
if(labda<=0.0) labda=0.0;
else if(labda>=1.0)labda=1.0;
perc=((1-labda)*2)-1;
perc=((1-labda)*2)-1;
if(G.qual == 0){
perc *= 100;

51
source/blender/src/editview.c
View File

@@ -808,41 +808,38 @@ void mouse_cursor(void)
getmouseco_areawin(mval);
if(mval[0]!=G.vd->mx || mval[1]!=G.vd->my) {
mx= mval[0];
my= mval[1];
mx= mval[0];
my= mval[1];
fp= give_cursor();
fp= give_cursor();
if(G.obedit && ((G.qual & LR_CTRLKEY) || get_mbut()&R_MOUSE )) lr_click= 1;
VECCOPY(oldcurs, fp);
if(G.obedit && ((G.qual & LR_CTRLKEY) || get_mbut()&R_MOUSE )) lr_click= 1;
VECCOPY(oldcurs, fp);
project_short_noclip(fp, mval);
project_short_noclip(fp, mval);
initgrabz(fp[0], fp[1], fp[2]);
initgrabz(fp[0], fp[1], fp[2]);
if(mval[0]!=3200) {
if(mval[0]!=3200) {
window_to_3d(dvec, mval[0]-mx, mval[1]-my);
VecSubf(fp, fp, dvec);
window_to_3d(dvec, mval[0]-mx, mval[1]-my);
VecSubf(fp, fp, dvec);
}
else {
dx= ((float)(mx-(curarea->winx/2)))*zfac/(curarea->winx/2);
dy= ((float)(my-(curarea->winy/2)))*zfac/(curarea->winy/2);
fz= G.vd->persmat[0][3]*fp[0]+ G.vd->persmat[1][3]*fp[1]+ G.vd->persmat[2][3]*fp[2]+ G.vd->persmat[3][3];
fz= fz/zfac;
fp[0]= (G.vd->persinv[0][0]*dx + G.vd->persinv[1][0]*dy+ G.vd->persinv[2][0]*fz)-G.vd->ofs[0];
fp[1]= (G.vd->persinv[0][1]*dx + G.vd->persinv[1][1]*dy+ G.vd->persinv[2][1]*fz)-G.vd->ofs[1];
fp[2]= (G.vd->persinv[0][2]*dx + G.vd->persinv[1][2]*dy+ G.vd->persinv[2][2]*fz)-G.vd->ofs[2];
}
allqueue(REDRAWVIEW3D, 1);
}
else {
dx= ((float)(mx-(curarea->winx/2)))*zfac/(curarea->winx/2);
dy= ((float)(my-(curarea->winy/2)))*zfac/(curarea->winy/2);
fz= G.vd->persmat[0][3]*fp[0]+ G.vd->persmat[1][3]*fp[1]+ G.vd->persmat[2][3]*fp[2]+ G.vd->persmat[3][3];
fz= fz/zfac;
fp[0]= (G.vd->persinv[0][0]*dx + G.vd->persinv[1][0]*dy+ G.vd->persinv[2][0]*fz)-G.vd->ofs[0];
fp[1]= (G.vd->persinv[0][1]*dx + G.vd->persinv[1][1]*dy+ G.vd->persinv[2][1]*fz)-G.vd->ofs[1];
fp[2]= (G.vd->persinv[0][2]*dx + G.vd->persinv[1][2]*dy+ G.vd->persinv[2][2]*fz)-G.vd->ofs[2];
}
allqueue(REDRAWVIEW3D, 1);
if(lr_click) {
if(G.obedit->type==OB_MESH) addvert_mesh();

81
source/blender/src/view.c
View File

@@ -259,6 +259,87 @@ void project_float(float *vec, float *adr)
}
}
void view3d_get_object_project_mat(ScrArea *area, Object *ob, float mat[4][4])
{
if (area->spacetype!=SPACE_VIEW3D || !area->spacedata.first) {
Mat4One(mat);
} else {
View3D *vd = area->spacedata.first;
float tmp[4][4];
Mat4MulMat4(tmp, ob->obmat, vd->viewmat);
Mat4MulMat4(mat, tmp, vd->winmat1);
}
}
void view3d_project_short(ScrArea *area, float *vec, short *adr, float mat[4][4])
{
float fx, fy, vec4[4];
adr[0]= 3200;
VECCOPY(vec4, vec);
vec4[3]= 1.0;
Mat4MulVec4fl(mat, vec4);
if( vec4[3]>BL_NEAR_CLIP ) { /* 0.001 is the NEAR clipping cutoff for picking */
fx= (area->winx/2)*(1 + vec4[0]/vec4[3]);
if( fx>0 && fx<area->winx) {
fy= (area->winy/2)*(1 + vec4[1]/vec4[3]);
if(fy>0.0 && fy< (float)area->winy) {
adr[0]= floor(fx);
adr[1]= floor(fy);
}
}
}
}
void view3d_project_short_noclip(ScrArea *area, float *vec, short *adr, float mat[4][4])
{
float fx, fy, vec4[4];
adr[0]= 3200;
VECCOPY(vec4, vec);
vec4[3]= 1.0;
Mat4MulVec4fl(mat, vec4);
if( vec4[3]>BL_NEAR_CLIP ) { /* 0.001 is the NEAR clipping cutoff for picking */
fx= (area->winx/2)*(1 + vec4[0]/vec4[3]);
if( fx>-32700 && fx<32700) {
fy= (area->winy/2)*(1 + vec4[1]/vec4[3]);
if(fy>-32700.0 && fy<32700.0) {
adr[0]= floor(fx);
adr[1]= floor(fy);
}
}
}
}
void view3d_project_float(ScrArea *area, float *vec, float *adr, float mat[4][4])
{
float vec4[4];
adr[0]= 3200.0;
VECCOPY(vec4, vec);
vec4[3]= 1.0;
Mat4MulVec4fl(mat, vec4);
if( vec4[3]>FLT_EPSILON ) {
adr[0] = (area->winx/2.0)+(area->winx/2.0)*vec4[0]/vec4[3];
adr[1] = (area->winy/2.0)+(area->winy/2.0)*vec4[1]/vec4[3];
} else {
adr[0] = adr[1] = 0.0;
}
}
int boundbox_clip(float obmat[][4], BoundBox *bb)
{
/* return 1: draw */