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2018-06-28T17:45:36Z

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2010年4月3日 (土) 10:23にwiki>Terrywallworkによる

2010-04-03T10:23:48Z

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==Adding a more controlled subdiv.==

Basic subdiv still means tons of editing and fractal subdiv is very
random. The basic idea here is to create a subdiv menu that allows
very good control over what and how it will be subdivided. I think
this will be most useful for natural formations (rocks, cliffs, etc.)
because you will be better able to control how the object is formed
but still have enough randomness to make it effective. The basic
idea is to create a way to manipulate x, y and z planes
independantly.

Edits needed to create this...

Anything I am not sure what needs to be done is in ***** Stuff *****

This section shows what I think will need to be changed. I am not
very sure on the UI stuff or if/how any of the changes must take
place. Allowing others to suggest the best way to implement this is
my best idea right now.

I believe most of this is actually worked out. I was also wondering
if the FULL switch should be added, to force the selected points to
be raised or lowered at the full amount. I am not sure if this
would be useful, since it seems except perhaps in amking some sort
of grating.

Looking for comments, suggestions and someone to help with the UI and
finish the coding for this.

-----------------------------------------------------------------------

buttons_editing.c

<source lang="cpp">
void do_meshbuts(unsigned short event)
</source>

current
===
<source lang="cpp">
float fac;
short randfac;
</source>
===
new
<source lang="cpp">
float fac, fax, fay, faz;
short randfac, randfax, randfay, randfaz;

case B_CONTROLSUBDIV:
randfax = 10;
randfay = 10;
randfaz = 10;
***** Menu Check *****
waitcursor(1);
fax = -((float)randfax ) / 100;
fay = -((float)randfay ) / 100;
faz = -((float)randfaz ) / 100;
***** subdivideflag handling *****
countall();
waitcursor(0);
allqueue(REDRAWVIEW3D, 0);
BIF_undo_push("Controlled Subdivide");
break;

static void editing_panel_mesh_tools(Object *ob, Mesh *me)
</source>

===
new
<source lang="cpp">
uiDefBut(block, BUT,B_CONTROLSUBDIV, "Ctrld Subd", 170,195,85,19, 0, 0, 0, 0, 0, "Subdivides selected faces with a controlled factor");
</source>

***** Not sure on the changes here, just copied fracsub line *****

-----------------------------------------------------------------------

editobject.c

<source lang="cpp">
void special_editmenu(void)
</source>

current
===
<source lang="cpp">
else if(G.obedit->type==OB_MESH) {

nr= pupmenu("Specials%t|Subdivide%x1|
Subdivide Fractal%x2|Subdivide Smooth%x3|
Merge%x4|Remove Doubles%x5|Hide%x6|Reveal%x7|
Select Swap%x8|Flip Normals %x9|Smooth %x10|Bevel %x11");
if(nr>0) waitcursor(1);

switch(nr) {
case 1:
subdivideflag(1, 0.0, editbutflag);
BIF_undo_push("Subdivide");
break;
case 2:
randfac= 10;
if(button(&randfac, 1, 100, "Rand fac:")==0) return;
fac= -( (float)randfac )/100;
subdivideflag(1, fac, editbutflag);
BIF_undo_push("Subdivide Fractal");
break;
case 3:
subdivideflag(1, 0.0, editbutflag | B_SMOOTH);
BIF_undo_push("Subdivide Smooth");
break;
case 4:
mergemenu();
break;
case 5:
notice("Removed %d Vertices", removedoublesflag(1, doublimit));
BIF_undo_push("Remove Doubles");
break;
case 6:
hide_mesh(0);
break;
case 7:
reveal_mesh();
break;
case 8:
selectswap_mesh();
break;
case 9:
flip_editnormals();
BIF_undo_push("Flip Normals");
break;
case 10:
vertexsmooth();
break;
case 11:
bevel_menu();
break;
}

makeDispList(G.obedit);

if(nr>0) waitcursor(0);

}
</source>

===
new
<source lang="cpp">
else if(G.obedit->type==OB_MESH) {

nr= pupmenu("Specials%t|Subdivide%x1|
Subdivide Fractal%x2|Subdivide Controlled%x3|
Subdivide Smooth%x4|Merge%x5|Remove Doubles%x6|
Hide%x7|Reveal%x8|Select Swap%x9|
Flip Normals %x10|Smooth %x11|Bevel %x12");
if(nr>0) waitcursor(1);

switch(nr) {
case 1:
subdivideflag(1, 0.0, editbutflag);
BIF_undo_push("Subdivide");
break;
case 2:
randfac= 10;
if(button(&randfac, 1, 100, "Rand fac:")==0) return;
fac= -( (float)randfac )/100;
subdivideflag(1, fac, editbutflag);
BIF_undo_push("Subdivide Fractal");
break;
case 3:
***** subdivideflag handling *****
BIF_undo_push("Subdivide Controlled");
break;
case 4:
subdivideflag(1, 0.0, editbutflag | B_SMOOTH);
BIF_undo_push("Subdivide Smooth");
break;
case 5:
mergemenu();
break;
case 6:
notice("Removed %d Vertices", removedoublesflag(1, doublimit));
BIF_undo_push("Remove Doubles");
break;
case 7:
hide_mesh(0);
break;
case 8:
reveal_mesh();
break;
case 9:
selectswap_mesh();
break;
case 10:
flip_editnormals();
BIF_undo_push("Flip Normals");
break;
case 11:
vertexsmooth();
break;
case 12:
bevel_menu();
break;
}

makeDispList(G.obedit);

if(nr>0) waitcursor(0);

}
</source>

-----------------------------------------------------------------------

header_view3d.c

<source lang="cpp">
void do_view3d_edit_mesh_edgesmenu(void *arg, int event)
</source>

current
===
<source lang="cpp">
extern short editbutflag;
float fac;
short randfac;

switch(event) {

case 0: /* subdivide smooth */
subdivideflag(1, 0.0, editbutflag | B_SMOOTH);
BIF_undo_push("Subdivide Smooth");
break;
case 1: /*subdivide fractal */
randfac= 10;
if(button(&randfac, 1, 100, "Rand fac:")==0) return;
fac= -( (float)randfac )/100;
subdivideflag(1, fac, editbutflag);
BIF_undo_push("Subdivide Fractal");
break;
case 2: /* subdivide */
subdivideflag(1, 0.0, editbutflag);
BIF_undo_push("Subdivide");
break;
case 3: /* knife subdivide */
KnifeSubdivide(KNIFE_PROMPT);
break;
case 4: /* Loop subdivide */
loopoperations(LOOP_CUT);
break;
case 5: /* Make Edge/Face */
addedgeface_mesh();
break;
case 6:
bevel_menu();
break;
case 7: /* Mark Seam */
editmesh_mark_seam(0);
break;
case 8: /* Clear Seam */
editmesh_mark_seam(1);
break;
case 9: /* Cease SubSurf */
transform('e');
break;
case 10: /* Rotate Edges */
edge_rotate_selected();
break;
}
allqueue(REDRAWVIEW3D, 0);
}
</source>

===
new
<source lang="cpp">
extern short editbutflag;
float fac, fax, fay, faz;
short randfac, randfax, randfay, randfaz;

switch(event) {

case 0: /* subdivide smooth */
subdivideflag(1, 0.0, editbutflag | B_SMOOTH);
BIF_undo_push("Subdivide Smooth");
break;
case 1: /*subdivide fractal */
randfac= 10;
if(button(&randfac, 1, 100, "Rand fac:")==0) return;
fac= -( (float)randfac )/100;
subdivideflag(1, fac, editbutflag);
BIF_undo_push("Subdivide Fractal");
break;
case 2: /* controlled subdivide */
randfax = 10;
randfay = 10;
randfaz = 10;
***** Menu Check *****
waitcursor(1);
fax = -((float)randfax ) / 100;
fay = -((float)randfay ) / 100;
faz = -((float)randfaz ) / 100;
***** subdivideflag handling *****
countall();
waitcursor(0);
allqueue(REDRAWVIEW3D, 0);
BIF_undo_push("Controlled Subdivide");
break;
case 3: /* subdivide */
subdivideflag(1, 0.0, editbutflag);
BIF_undo_push("Subdivide");
break;
case 4: /* knife subdivide */
KnifeSubdivide(KNIFE_PROMPT);
break;
case 5: /* Loop subdivide */
loopoperations(LOOP_CUT);
break;
case 6: /* Make Edge/Face */
addedgeface_mesh();
break;
case 7:
bevel_menu();
break;
case 8: /* Mark Seam */
editmesh_mark_seam(0);
break;
case 9: /* Clear Seam */
editmesh_mark_seam(1);
break;
case 10: /* Cease SubSurf */
transform('e');
break;
case 11: /* Rotate Edges */
edge_rotate_selected();
break;
}
allqueue(REDRAWVIEW3D, 0);
}

static uiBlock *view3d_edit_mesh_edgesmenu(void *arg_unused)
</source>

current
===
<source lang="cpp">
uiDefIconTextBut(block, BUTM, 1, ICON_BLANK1, "Subdivide|W, 1", 0, yco-=20, menuwidth, 19, NULL, 0.0, 0.0, 1, 2, "");
uiDefIconTextBut(block, BUTM, 1, ICON_BLANK1, "Subdivide Fractal|W, 2", 0, yco-=20, menuwidth, 19, NULL, 0.0, 0.0, 1, 1, "");
uiDefIconTextBut(block, BUTM, 1, ICON_BLANK1, "Subdivide Smooth|W, 3", 0, yco-=20, menuwidth, 19, NULL, 0.0, 0.0, 1, 0, "");
</source>

===
new
<source lang="cpp">
uiDefIconTextBut(block, BUTM, 1, ICON_BLANK1, "Subdivide|W, 1", 0, yco-=20, menuwidth, 19, NULL, 0.0, 0.0, 1, 2, "");
uiDefIconTextBut(block, BUTM, 1, ICON_BLANK1, "Subdivide Fractal|W, 2", 0, yco-=20, menuwidth, 19, NULL, 0.0, 0.0, 1, 1, "");
uiDefIconTextBut(block, BUTM, 1, ICON_BLANK1, "Subdivide Controlled|W, 3", 0, yco-=20, menuwidth, 19, NULL, 0.0, 0.0, 1, 1, "");
uiDefIconTextBut(block, BUTM, 1, ICON_BLANK1, "Subdivide Smooth|W, 4", 0, yco-=20, menuwidth, 19, NULL, 0.0, 0.0, 1, 0, "");
</source>

-----------------------------------------------------------------------

toolbox.c

<source lang="cpp">
static TBitem tb_mesh_edit_edge[]=
</source>

current
===
<source lang="cpp">
{ 0, "Subdivide|W, 1", 2, NULL},
{ 0, "Subdivide Fractal|W, 2", 1, NULL},
{ 0, "Subdivide Smooth|W, 3", 0, NULL},
</source>

===
new
<source lang="cpp">
{ 0, "Subdivide|W, 1", 2, NULL},
{ 0, "Subdivide Fractal|W, 2", 1, NULL},
{ 0, "Subdivide Controlled|W, 3", 1, NULL},
{ 0, "Subdivide Smooth|W, 4", 0, NULL},
</source>

-----------------------------------------------------------------------

The subdivide code is the other place of modification, however the
modifications to that must be done at the end, once you understand how
the implementation would work should this be added.

Controlled subdivide would call for a menu rather than just a single
modification factor. The layout is below, and each [] set is a button
or slider needer to get the settings // default settings...

| X : | + || - || full || 10-100 | // X : | Yes || Yes || No || 10 | |
| Y : | + || - || full || 10-100 | // Y : | Yes || Yes || No || 10 | |
| Z : | + || - || full || 10-100 | // Z : | Yes || Yes || No || 10 | |
| OK | // | No |

This allows you to make manipulations to any texture in one or more
directions and even control if it is just a positive bumping or a
positive and negative adjustment.

Six new flags would be needed to cover x,y, and z
XPLUS, XMINUS, YPLUS, YMINUS, ZPLUS, ZMINUS

If the Full setting was used XFULL, YFULL and ZFULL would
be needed too.

These would also have to be transferred to the subdiv code.

Which brings up the subdiv code....

current
===
<source lang="cpp">
void subdivideflag(int flag, float rad, int beauty)
</source>

new
===
<source lang="cpp">
void subdivideflag(int flag, float rad, int beauty, int controlled, float radx, float rady, float radz)
</source>

current
===
<source lang="cpp">
/* make new normal and put in edge, clear flag! needed for face creation part below */
eed= em->edges.first;
while(eed) {
if(eed->f2 & flag) {
/* for now */
eed->h &= ~EM_FGON;

/* Subdivide percentage is stored in 1/32768ths in eed->f1 */
if (beauty & B_PERCENTSUBD) percent=(float)(eed->f1)/32768.0;
else percent=0.5;

vec[0]= (1-percent)*eed->v1->co[0] + percent*eed->v2->co[0];
vec[1]= (1-percent)*eed->v1->co[1] + percent*eed->v2->co[1];
vec[2]= (1-percent)*eed->v1->co[2] + percent*eed->v2->co[2];

if(rad > 0.0) { /* subdivide sphere */
Normalise(vec);
vec[0]*= rad;
vec[1]*= rad;
vec[2]*= rad;
}
else if(rad< 0.0) { /* fractal subdivide */
fac= rad* VecLenf(eed->v1->co, eed->v2->co);
vec1[0]= fac*(0.5-BLI_drand());
vec1[1]= fac*(0.5-BLI_drand());
vec1[2]= fac*(0.5-BLI_drand());
VecAddf(vec, vec, vec1);
}

if(beauty & B_SMOOTH) {
smooth_subdiv_vec(eed->v1->co, eed->v2->co, eed->v1->no, eed->v2->no, vec1);
VecAddf(vec, vec, vec1);
}

eed->vn= addvertlist(vec);
eed->vn->f= eed->v1->f;

}
else eed->vn= 0;

eed->f2= 0; /* needed! */

eed= eed->next;
}
</source>

===
new
<source lang="cpp">
/* make new normal and put in edge, clear flag! needed for face creation part below */
eed= em->edges.first;
while(eed) {
if(eed->f2 & flag) {
/* for now */
eed->h &= ~EM_FGON;

/* Subdivide percentage is stored in 1/32768ths in eed->f1 */
if (beauty & B_PERCENTSUBD) percent=(float)(eed->f1)/32768.0;
else percent=0.5;

vec[0]= (1-percent)*eed->v1->co[0] + percent*eed->v2->co[0];
vec[1]= (1-percent)*eed->v1->co[1] + percent*eed->v2->co[1];
vec[2]= (1-percent)*eed->v1->co[2] + percent*eed->v2->co[2];

if(rad > 0.0) { /* subdivide sphere */
Normalise(vec);
vec[0]*= rad;
vec[1]*= rad;
vec[2]*= rad;
}
else if(rad< 0.0) { /* fractal subdivide */
fac= rad* VecLenf(eed->v1->co, eed->v2->co);
vec1[0]= fac*(0.5-BLI_drand());
vec1[1]= fac*(0.5-BLI_drand());
vec1[2]= fac*(0.5-BLI_drand());
VecAddf(vec, vec, vec1);
}
else if(rad == 0.0) { /* controlled subdiv */
/***** Here's where the flags come in *****/
/* X Check */
fac= radx* VecLenf(eed->v1->co, eed->v2->co);
mod= (0.5-BLI_drand());

if ((controlled & SD_XPLUS) && mod > 0.0) {
vec1[0]= fac*mod;
}
else
if ((controlled & SD_XMINUS) && mod < 0.0) {
vec1[0]= fac*mod;
}
else
vec1[0]= fac;

/* Y Check */
fac= rady* VecLenf(eed->v1->co, eed->v2->co);
mod= (0.5-BLI_drand());

if ((controlled & SD_YPLUS) && mod > 0.0) {
vec1[1]= fac*mod;
}
else
if ((controlled & SD_YMINUS) && mod < 0.0) {
vec1[1]= fac*mod;
}
else
vec1[1]= fac;

/* Z Check */
fac= radz* VecLenf(eed->v1->co, eed->v2->co);
mod= (0.5-BLI_drand());

if ((controlled & SD_ZPLUS) && mod > 0.0) {
vec1[2]= fac*mod;
}
else
if ((controlled & SD_ZMINUS) && mod < 0.0) {
vec1[2]= fac*mod;
}
else
vec1[2]= fac;
}

if(beauty & B_SMOOTH) {
smooth_subdiv_vec(eed->v1->co, eed->v2->co, eed->v1->no, eed->v2->no, vec1);
VecAddf(vec, vec, vec1);
}

eed->vn= addvertlist(vec);
eed->vn->f= eed->v1->f;

}
else eed->vn= 0;

eed->f2= 0; /* needed! */

eed= eed->next;
}
</source>

-- %MAINWEB%.KennethStrom - 27 Oct 2004

Chopped the long menu lines, so the page fits better - don't forget to make them in one line when copy&pasting this into your own code...
-- %MAINWEB%.NathanLetwory - 27 Oct 2004

[[Category:Script]]

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Yamyam: 1版 をインポートしました

2010年4月3日 (土) 10:23にwiki>Terrywallworkによる

Yamyam: 1版をインポートしました