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first of the c code comment translation in the mother of all directories!

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This commit is contained in:
Ton Roosendaal
2003-04-28 14:43:20 +00:00
parent 85c55f3dff
commit 597875cb69
13 changed files with 315 additions and 344 deletions
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72
source/blender/src/drawobject.c
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@@ -136,7 +136,7 @@ static void init_gl_materials(Object *ob)
matbuf[0][1][2]= defmaterial.specb;
matbuf[0][1][3]= 1.0;
/* ook matnr 1, displists! */
/* do material 1 too, for displists! */
VECCOPY(matbuf[1][0], matbuf[0][0]);
VECCOPY(matbuf[1][1], matbuf[0][1]);
}
@@ -450,25 +450,25 @@ static void tekenshadbuflimits(Lamp *la, float mat[][4])
static void spotvolume(float *lvec, float *vvec, float inp)
{
/* camera staat op 0,0,0 */
/* camera is at 0,0,0 */
float temp[3],plane[3],mat1[3][3],mat2[3][3],mat3[3][3],mat4[3][3],q[4],co,si,hoek;
Normalise(lvec);
Normalise(vvec); /* is dit de goede vector ? */
Normalise(vvec); /* is this the correct vector ? */
Crossf(temp,vvec,lvec); /* vergelijking van vlak door vvec en lvec */
Crossf(plane,lvec,temp); /* en dan het vlak loodrecht daarop en evenwijdig aan lvec */
Crossf(temp,vvec,lvec); /* equation for a plane through vvec en lvec */
Crossf(plane,lvec,temp); /* a plane perpendicular to this, parrallel with lvec */
Normalise(plane);
/* nu hebben we twee vergelijkingen: die van de kegel en die van het vlak, maar we hebben
drie onbekenden We halen nu een onbekende weg door het vlak naar z=0 te roteren */
/* Ik heb geen flauw idee of dat mag, we moeten tenslotte twee oplossingen krijgen, maar we
proberen het gewoon: vlak vector moet (0,0,1) worden*/
/* now we've got two equations: one of a cone and one of a plane, but we have
three unknowns. We remove one unkown by rotating the plane to z=0 (the plane normal) */
/* roteer om uitproduct vector van (0,0,1) en vlakvector, inproduct graden */
/* volgens defenitie volgt dat uitproduct is (plane[1],-plane[0],0), en cos() = plane[2]);*/
/* rotate around cross product vector of (0,0,1) and plane normal, dot product degrees */
/* according definition, we derive cross product is (plane[1],-plane[0],0), en cos = plane[2]);*/
/* translating this comment to english didnt really help me understanding the math! :-) (ton) */
q[1] = plane[1] ;
q[2] = -plane[0] ;
q[3] = 0 ;
@@ -485,7 +485,7 @@ static void spotvolume(float *lvec, float *vvec, float inp)
QuatToMat3(q,mat1);
/* lampvector nu over acos(inp) graden roteren */
/* rotate lamp vector now over acos(inp) degrees */
vvec[0] = lvec[0] ;
vvec[1] = lvec[1] ;
@@ -629,7 +629,7 @@ static void draw_limit_line(float sta, float end, unsigned int col)
void drawcamera(Object *ob)
{
/* een staande piramide met (0,0,0) als top */
/* a standing up pyramid with (0,0,0) as top */
Camera *cam;
World *wrld;
float vec[8][4], tmat[4][4], fac, facx, facy, depth;
@@ -638,7 +638,7 @@ void drawcamera(Object *ob)
glDisable(GL_LIGHTING);
glDisable(GL_CULL_FACE);
/* zo is ie altijd te zien */
/* that way it's always visible */
fac= cam->drawsize;
if(G.vd->persp>=2) fac= cam->clipsta+0.1;
@@ -646,7 +646,7 @@ void drawcamera(Object *ob)
facx= fac*1.28;
facy= fac*1.024;
vec[0][0]= 0; vec[0][1]= 0; vec[0][2]= 0.001; /* GLBUG: z niet op nul vanwege picking op entry */
vec[0][0]= 0; vec[0][1]= 0; vec[0][2]= 0.001; /* GLBUG: for picking at iris Entry (well thats old!) */
vec[1][0]= facx; vec[1][1]= facy; vec[1][2]= depth;
vec[2][0]= facx; vec[2][1]= -facy; vec[2][2]= depth;
vec[3][0]= -facx; vec[3][1]= -facy; vec[3][2]= depth;
@@ -674,7 +674,7 @@ void drawcamera(Object *ob)
if(G.vd->persp>=2) return;
if(G.f & G_BACKBUFSEL) return;
/* pijl aan top */
/* arrow on top */
vec[0][2]= depth;
glBegin(GL_QUADS);
@@ -1039,7 +1039,7 @@ void tekenvertices_ext(int mode)
glDrawBuffer(GL_FRONT);
/* alle views aflopen */
/* check all views */
tempsa= curarea;
sa= G.curscreen->areabase.first;
while(sa) {
@@ -1423,7 +1423,7 @@ static void drawDispListsolid(ListBase *lb, Object *ob)
set_gl_material(dl->col+1);
/* voor poly's is er maar 1 normaal nodig */
/* voor polys only one normal needed */
if(index3_nors_incr==0) {
while(parts--) {
@@ -1773,7 +1773,7 @@ static void drawmeshsolid(Object *ob, float *nors)
}
/* dit GL_QUADS grapje is op snelheid getest: factor 2! */
/* this GL_QUADS joke below was tested for speed: a factor 2! */
if(v4) {if(glmode==GL_TRIANGLES) {glmode= GL_QUADS; glEnd(); glBegin(GL_QUADS);}}
else {if(glmode==GL_QUADS) {glmode= GL_TRIANGLES; glEnd(); glBegin(GL_TRIANGLES);}}
@@ -1891,7 +1891,7 @@ static void drawmeshshaded(Object *ob, unsigned int *col1, unsigned int *col2)
me= ob->data;
mface= me->mface;
/* tekent ie geen hide */
/* then it does not draw hide */
if( (G.f & G_FACESELECT) && ob==((G.scene->basact) ? (G.scene->basact->object) : 0)) tface= me->tface;
else tface= 0;
@@ -2088,7 +2088,7 @@ static void drawDispList(Object *ob, int dt)
else
#endif
if( G.f & (G_VERTEXPAINT+G_TEXTUREPAINT)) {
/* in deze volgorde: vertexpaint heeft soms al mcol gemaakt */
/* in order: vertexpaint already made mcol */
///*
//*/
@@ -2152,7 +2152,7 @@ static void drawDispList(Object *ob, int dt)
dl= lb->first;
if(dl==0) return;
/* regel: dl->type INDEX3 altijd vooraan in lijst */
/* rule: dl->type INDEX3 is always first in list */
if(dl->type!=DL_INDEX3) {
curve_to_filledpoly(ob->data, lb);
dl= lb->first;
@@ -2430,7 +2430,7 @@ static void drawmeshwire(Object *ob)
glEnd();
}
if(G.f & (G_FACESELECT+G_DRAWFACES)) { /* vlakken */
if(G.f & (G_FACESELECT+G_DRAWFACES)) { /* faces */
evl= G.edvl.first;
while(evl) {
@@ -2868,7 +2868,7 @@ static void drawnurb(Object *ob, Nurb *nurb, int dt)
float vec[3];
int a, nr, skip;
/* eerst handles niet select */
/* first non-selected handles */
nu= nurb;
while(nu) {
if((nu->type & 7)==CU_BEZIER) {
@@ -2877,7 +2877,7 @@ static void drawnurb(Object *ob, Nurb *nurb, int dt)
nu= nu->next;
}
/* dan DispList */
/* then DispList */
cpack(0);
cu= ob->data;
@@ -3247,7 +3247,7 @@ void draw_object(Base *base)
ob= base->object;
/* keys tekenen? */
/* draw keys? */
if(base==(G.scene->basact) || (base->flag & (SELECT+BA_WASSEL))) {
if(warning_recursive==0 && ob!=G.obedit) {
if(ob->ipo && ob->ipo->showkey && (ob->ipoflag & OB_DRAWKEY)) {
@@ -3318,12 +3318,12 @@ void draw_object(Base *base)
}
}
/* patch? kinderen met timeoffs verprutsen ouders. Hoe los je dat op! */
/* patch? children objects with a timeoffs change the parents. How to solve! */
/* if( ((int)ob->ctime) != F_(G.scene->r.cfra)) where_is_object(ob); */
mymultmatrix(ob->obmat);
/* welke wire kleur */
/* which wire color */
if((G.f & (G_BACKBUFSEL+G_PICKSEL)) == 0) {
project_short(ob->obmat[3], &base->sx);
@@ -3350,7 +3350,7 @@ void draw_object(Base *base)
if(G.zbuf==0 && dt>OB_WIRE) dt= OB_WIRE;
dtx= 0;
/* faceselect uitzondering: ook solid tekenen als dt==wire, behalve in editmode */
/* faceselect exception: also draw solid when dt==wire, except in editmode */
if(ob==((G.scene->basact) ? (G.scene->basact->object) : 0) && (G.f & (G_FACESELECT+G_VERTEXPAINT+G_TEXTUREPAINT+G_WEIGHTPAINT))) {
if(ob->type==OB_MESH) {
@@ -3466,7 +3466,7 @@ void draw_object(Base *base)
&& ((G.f & (G_BACKBUFSEL+G_PICKSEL)) == 0) ) {
paf = give_parteff(ob);
if( paf ) {
if(col) cpack(0xFFFFFF); /* zichtbaarheid */
if(col) cpack(0xFFFFFF); /* for visibility */
if(paf->flag & PAF_STATIC) draw_static_particle_system(ob, paf);
else draw_particle_system(ob, paf);
cpack(col);
@@ -3488,8 +3488,6 @@ void draw_object(Base *base)
case OB_CURVE:
case OB_SURF:
cu= ob->data;
/* een pad niet solid tekenen: wel dus!!! */
/* if(cu->flag & CU_PATH) if(dt>OB_WIRE) dt= OB_WIRE; */
if(ob==G.obedit) {
drawnurb(ob, editNurb.first, dt);
@@ -3508,7 +3506,7 @@ void draw_object(Base *base)
drawaxes(1.0);
break;
case OB_LAMP:
/* doet myloadmatrix */
/* does a myloadmatrix */
drawlamp(ob);
break;
case OB_CAMERA:
@@ -3531,7 +3529,7 @@ void draw_object(Base *base)
}
}
/* draw extra: na gewone draw ivm makeDispList */
/* draw extra: after normal draw because of makeDispList */
if(dtx) {
if(G.f & G_SIMULATION);
else if(dtx & OB_AXIS) {
@@ -3573,7 +3571,7 @@ void draw_object(Base *base)
if(G.f & G_SIMULATION) return;
if((G.f & (G_BACKBUFSEL+G_PICKSEL))==0) {
/* hulplijnen e.d. */
/* help lines and so */
if(ob->parent && (ob->parent->lay & G.vd->lay)) {
setlinestyle(3);
glBegin(GL_LINES);
@@ -3643,12 +3641,12 @@ void draw_object_ext(Base *base)
glDrawBuffer(GL_FRONT);
/* alle views aflopen */
/* check all views */
tempsa= curarea;
sa= G.curscreen->areabase.first;
while(sa) {
if(sa->spacetype==SPACE_VIEW3D) {
/* er wordt beperkt in beide buffers getekend: selectbuffer! */
/* limited drawing in both buffers: selectbuffer! */
vd= sa->spacedata.first;
if(base->lay & vd->lay) {