diff options
-rw-r--r-- | source/blender/blenlib/BLI_uvproject.h | 40 | ||||
-rw-r--r-- | source/blender/blenlib/intern/uvproject.c | 174 | ||||
-rw-r--r-- | source/blender/editors/uvedit/uvedit_unwrap_ops.c | 173 |
3 files changed, 236 insertions, 151 deletions
diff --git a/source/blender/blenlib/BLI_uvproject.h b/source/blender/blenlib/BLI_uvproject.h new file mode 100644 index 00000000000..a2da83bd5de --- /dev/null +++ b/source/blender/blenlib/BLI_uvproject.h @@ -0,0 +1,40 @@ +/** + * + * $Id: + * + * ***** BEGIN GPL LICENSE BLOCK ***** + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * ***** END GPL LICENSE BLOCK ***** + */ +#ifndef BKE_UVPROJECT_H +#define BKE_UVPROJECT_H + +struct UvCameraInfo; + +/* create uv info from the camera, needs to be freed */ +struct UvCameraInfo *project_camera_info(struct Object *ob, float rotmat[4][4], float winx, float winy); + +/* apply uv from uvinfo (camera) */ +void project_from_camera(float target[2], float source[3], struct UvCameraInfo *uci); + +/* apply uv from perspective matrix */ +void project_from_view(float target[2], float source[3], float persmat[4][4], float rotmat[4][4], float winx, float winy); + +/* apply ortho uv's */ +void project_from_view_ortho(float target[2], float source[3], float rotmat[4][4]); + +#endif
\ No newline at end of file diff --git a/source/blender/blenlib/intern/uvproject.c b/source/blender/blenlib/intern/uvproject.c new file mode 100644 index 00000000000..b3b76c0db43 --- /dev/null +++ b/source/blender/blenlib/intern/uvproject.c @@ -0,0 +1,174 @@ +/** + * $Id: + * + * ***** BEGIN GPL LICENSE BLOCK ***** + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * ***** END GPL LICENSE BLOCK ***** + */ + +#include <math.h> + +#include "MEM_guardedalloc.h" + +#include "DNA_camera_types.h" +#include "DNA_object_types.h" + +#include "BLI_math.h" + +typedef struct UvCameraInfo { + float camangle; + float camsize; + float xasp, yasp; + float shiftx, shifty; + float rotmat[4][4]; + float caminv[4][4]; + short do_persp, do_pano; +} UvCameraInfo; + +void project_from_camera(float target[2], float source[3], UvCameraInfo *uci) +{ + float pv4[4]; + + copy_v3_v3(pv4, source); + pv4[3]= 1.0; + + /* rotmat is the object matrix in this case */ + mul_m4_v4(uci->rotmat, pv4); + + /* caminv is the inverse camera matrix */ + mul_m4_v4(uci->caminv, pv4); + + if(uci->do_pano) { + float angle= atan2f(pv4[0], -pv4[2]) / (M_PI * 2.0); /* angle around the camera */ + if (uci->do_persp==0) { + target[0] = angle; /* no correct method here, just map to 0-1 */ + target[1] = pv4[1] / uci->camsize; + } + else { + float vec2d[2]= {pv4[0], pv4[2]}; /* 2D position from the camera */ + target[0] = angle * (M_PI / uci->camangle); + target[1] = pv4[1] / (len_v2(vec2d) * uci->camsize); + } + } + else { + if (pv4[2]==0.0f) pv4[2]= 0.00001f; /* don't allow div by 0 */ + + if (uci->do_persp==0) { + target[0]=(pv4[0]/uci->camsize) * uci->xasp; + target[1]=(pv4[1]/uci->camsize) * uci->yasp; + } + else { + target[0]=(-pv4[0]*((1.0f/uci->camsize)/pv4[2])*uci->xasp) / 2.0f; + target[1]=(-pv4[1]*((1.0f/uci->camsize)/pv4[2])*uci->yasp) / 2.0f; + } + } + + /* adds camera shift + 0.5 */ + target[0] += uci->shiftx; + target[1] += uci->shifty; +} + +/* could rv3d->persmat */ +void project_from_view(float target[2], float source[3], float persmat[4][4], float rotmat[4][4], float winx, float winy) +{ + float pv[3], pv4[4], x= 0.0, y= 0.0; + + mul_m4_v3(rotmat, pv); + + copy_v3_v3(pv4, source); + pv4[3]= 1.0; + + /* rotmat is the object matrix in this case */ + mul_m4_v4(rotmat, pv4); + + /* almost project_short */ + mul_m4_v4(persmat, pv4); + if(fabs(pv4[3]) > 0.00001) { /* avoid division by zero */ + target[0] = winx/2.0 + (winx/2.0) * pv4[0] / pv4[3]; + target[1] = winy/2.0 + (winy/2.0) * pv4[1] / pv4[3]; + } + else { + /* scaling is lost but give a valid result */ + target[0] = winx/2.0 + (winx/2.0) * pv4[0]; + target[1] = winy/2.0 + (winy/2.0) * pv4[1]; + } + + /* v3d->persmat seems to do this funky scaling */ + if(winx > winy) { + y= (winx - winy)/2.0; + winy = winx; + } + else { + x= (winy - winx)/2.0; + winx = winy; + } + + target[0]= (x + target[0]) / winx; + target[1]= (y + target[1]) / winy; +} + +/* 'rotmat' can be obedit->obmat when uv project is used. + * 'winx' and 'winy' can be from scene->r.xsch/ysch */ +UvCameraInfo *project_camera_info(Object *ob, float rotmat[4][4], float winx, float winy) +{ + UvCameraInfo uci; + Camera *camera= ob->data; + + uci.do_pano = (camera->flag & CAM_PANORAMA); + uci.do_persp = (camera->type==CAM_PERSP); + + uci.camangle= DEG2RAD(camera->angle)/2.0f; + uci.camsize= uci.do_persp ? uci.camsize= tanf(uci.camangle) : camera->ortho_scale; + + if (invert_m4_m4(uci.caminv, ob->obmat)) { + UvCameraInfo *uci_pt; + + /* normal projection */ + copy_m4_m4(uci.rotmat, rotmat); + + /* also make aspect ratio adjustment factors */ + if (winx > winy) { + uci.xasp= 1.0f; + uci.yasp= winx / winy; + } + else { + uci.xasp= winy / winx; + uci.yasp= 1.0f; + } + + /* include 0.5f here to move the UVs into the center */ + uci.shiftx = 0.5f - camera->shiftx; + uci.shifty = 0.5f - camera->shifty; + + uci_pt= MEM_mallocN(sizeof(UvCameraInfo), "UvCameraInfo"); + *uci_pt= uci; + return uci_pt; + } + + return NULL; +} + +void project_from_view_ortho(float target[2], float source[3], float rotmat[4][4]) +{ + float pv[3]; + + mul_m4_v3(rotmat, pv); + + /* ortho projection */ + target[0] = -pv[0]; + target[1] = pv[2]; +} diff --git a/source/blender/editors/uvedit/uvedit_unwrap_ops.c b/source/blender/editors/uvedit/uvedit_unwrap_ops.c index c2682325c39..2948592daf8 100644 --- a/source/blender/editors/uvedit/uvedit_unwrap_ops.c +++ b/source/blender/editors/uvedit/uvedit_unwrap_ops.c @@ -49,6 +49,7 @@ #include "BLI_math.h" #include "BLI_edgehash.h" #include "BLI_editVert.h" +#include "BLI_uvproject.h" #include "PIL_time.h" @@ -865,115 +866,7 @@ void UV_OT_unwrap(wmOperatorType *ot) } /**************** Project From View operator **************/ - -static void uv_from_view_bounds(float target[2], float source[3], float rotmat[4][4]) -{ - float pv[3]; - - mul_m4_v3(rotmat, pv); - - /* ortho projection */ - target[0] = -pv[0]; - target[1] = pv[2]; -} - -typedef struct UvCameraInfo { - float camangle; - float camsize; - float xasp, yasp; - float shiftx, shifty; - float rotmat[4][4]; - float caminv[4][4]; - short do_persp, do_pano; -} UvCameraInfo; - -//static void uv_from_camera(float camsize, float camangle, float xasp, float yasp, float target[2], float source[3], float rotmat[4][4], float caminv[4][4], int persp, int pano) -static void uv_from_camera(UvCameraInfo *uci, float target[2], float source[3]) -{ - float pv4[4]; - - copy_v3_v3(pv4, source); - pv4[3]= 1.0; - - /* rotmat is the object matrix in this case */ - mul_m4_v4(uci->rotmat, pv4); - - /* caminv is the inverse camera matrix */ - mul_m4_v4(uci->caminv, pv4); - - if(uci->do_pano) { - float angle= atan2f(pv4[0], -pv4[2]) / (M_PI * 2.0); /* angle around the camera */ - if (uci->do_persp==0) { - target[0] = angle; /* no correct method here, just map to 0-1 */ - target[1] = pv4[1] / uci->camsize; - } - else { - float vec2d[2]= {pv4[0], pv4[2]}; /* 2D position from the camera */ - target[0] = angle * (M_PI / uci->camangle); - target[1] = pv4[1] / (len_v2(vec2d) * uci->camsize); - } - } - else { - if (pv4[2]==0.0f) pv4[2]=0.00001f; /* don't allow div by 0 */ - - if (uci->do_persp==0) { - target[0]=(pv4[0]/uci->camsize) * uci->xasp; - target[1]=(pv4[1]/uci->camsize) * uci->yasp; - } - else { - target[0]=(-pv4[0]*((1.0f/uci->camsize)/pv4[2])*uci->xasp) / 2.0f; - target[1]=(-pv4[1]*((1.0f/uci->camsize)/pv4[2])*uci->yasp) / 2.0f; - } - } - - /* adds camera shift + 0.5 */ - target[0] += uci->shiftx; - target[1] += uci->shifty; -} - -static void uv_from_view(ARegion *ar, float target[2], float source[3], float rotmat[4][4]) -{ - RegionView3D *rv3d= ar->regiondata; - float pv[3], pv4[4], dx, dy, x= 0.0, y= 0.0; - - mul_m4_v3(rotmat, pv); - - dx= ar->winx; - dy= ar->winy; - - copy_v3_v3(pv4, source); - pv4[3]= 1.0; - - /* rotmat is the object matrix in this case */ - mul_m4_v4(rotmat, pv4); - - /* almost project_short */ - mul_m4_v4(rv3d->persmat, pv4); - if(fabs(pv4[3]) > 0.00001) { /* avoid division by zero */ - target[0] = dx/2.0 + (dx/2.0)*pv4[0]/pv4[3]; - target[1] = dy/2.0 + (dy/2.0)*pv4[1]/pv4[3]; - } - else { - /* scaling is lost but give a valid result */ - target[0] = dx/2.0 + (dx/2.0)*pv4[0]; - target[1] = dy/2.0 + (dy/2.0)*pv4[1]; - } - - /* v3d->persmat seems to do this funky scaling */ - if(dx > dy) { - y= (dx-dy)/2.0; - dy = dx; - } - else { - x= (dy-dx)/2.0; - dx = dy; - } - - target[0]= (x + target[0])/dx; - target[1]= (y + target[1])/dy; -} - -static int from_view_exec(bContext *C, wmOperator *op) +static int uv_from_view_exec(bContext *C, wmOperator *op) { Scene *scene= CTX_data_scene(C); Object *obedit= CTX_data_edit_object(C); @@ -1004,53 +897,31 @@ static int from_view_exec(bContext *C, wmOperator *op) if(efa->f & SELECT) { tf= CustomData_em_get(&em->fdata, efa->data, CD_MTFACE); - uv_from_view_bounds(tf->uv[0], efa->v1->co, rotmat); - uv_from_view_bounds(tf->uv[1], efa->v2->co, rotmat); - uv_from_view_bounds(tf->uv[2], efa->v3->co, rotmat); + project_from_view_ortho(tf->uv[0], efa->v1->co, rotmat); + project_from_view_ortho(tf->uv[1], efa->v2->co, rotmat); + project_from_view_ortho(tf->uv[2], efa->v3->co, rotmat); if(efa->v4) - uv_from_view_bounds(tf->uv[3], efa->v4->co, rotmat); + project_from_view_ortho(tf->uv[3], efa->v4->co, rotmat); } } } else if (camera) { - UvCameraInfo uci; - - uci.do_pano = (camera->flag & CAM_PANORAMA); - uci.do_persp = (camera->type==CAM_PERSP); - - uci.camangle= DEG2RAD(camera->angle)/2.0f; - uci.camsize= uci.do_persp ? uci.camsize= tanf(uci.camangle) : camera->ortho_scale; - - if (invert_m4_m4(uci.caminv, v3d->camera->obmat)) { - - /* normal projection */ - copy_m4_m4(uci.rotmat, obedit->obmat); - - /* also make aspect ratio adjustment factors */ - if (scene->r.xsch > scene->r.ysch) { - uci.xasp= 1.0f; - uci.yasp= (float)(scene->r.xsch)/(float)(scene->r.ysch); - } - else { - uci.xasp= (float)(scene->r.ysch)/(float)(scene->r.xsch); - uci.yasp= 1.0f; - } - - /* include 0.5f here to move the UVs into the center */ - uci.shiftx = 0.5f - camera->shiftx; - uci.shifty = 0.5f - camera->shifty; - + struct UvCameraInfo *uci= project_camera_info(v3d->camera, obedit->obmat, scene->r.xsch, scene->r.ysch); + + if(uci) { for(efa= em->faces.first; efa; efa= efa->next) { if(efa->f & SELECT) { tf= CustomData_em_get(&em->fdata, efa->data, CD_MTFACE); - uv_from_camera(&uci, tf->uv[0], efa->v1->co); - uv_from_camera(&uci, tf->uv[1], efa->v2->co); - uv_from_camera(&uci, tf->uv[2], efa->v3->co); + project_from_camera(tf->uv[0], efa->v1->co, uci); + project_from_camera(tf->uv[1], efa->v2->co, uci); + project_from_camera(tf->uv[2], efa->v3->co, uci); if(efa->v4) - uv_from_camera(&uci, tf->uv[3], efa->v4->co); + project_from_camera(tf->uv[3], efa->v4->co, uci); } } + + MEM_freeN(uci); } } else { @@ -1060,11 +931,11 @@ static int from_view_exec(bContext *C, wmOperator *op) if(efa->f & SELECT) { tf= CustomData_em_get(&em->fdata, efa->data, CD_MTFACE); - uv_from_view(ar, tf->uv[0], efa->v1->co, rotmat); - uv_from_view(ar, tf->uv[1], efa->v2->co, rotmat); - uv_from_view(ar, tf->uv[2], efa->v3->co, rotmat); + project_from_view(tf->uv[0], efa->v1->co, rv3d->persmat, rotmat, ar->winx, ar->winy); + project_from_view(tf->uv[1], efa->v2->co, rv3d->persmat, rotmat, ar->winx, ar->winy); + project_from_view(tf->uv[2], efa->v3->co, rv3d->persmat, rotmat, ar->winx, ar->winy); if(efa->v4) - uv_from_view(ar, tf->uv[3], efa->v4->co, rotmat); + project_from_view(tf->uv[3], efa->v4->co, rv3d->persmat, rotmat, ar->winx, ar->winy); } } } @@ -1078,7 +949,7 @@ static int from_view_exec(bContext *C, wmOperator *op) return OPERATOR_FINISHED; } -static int from_view_poll(bContext *C) +static int uv_from_view_poll(bContext *C) { RegionView3D *rv3d= CTX_wm_region_view3d(C); @@ -1096,8 +967,8 @@ void UV_OT_from_view(wmOperatorType *ot) ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO; /* api callbacks */ - ot->exec= from_view_exec; - ot->poll= from_view_poll; + ot->exec= uv_from_view_exec; + ot->poll= uv_from_view_poll; /* properties */ RNA_def_boolean(ot->srna, "orthographic", 0, "Orthographic", "Use orthographic projection."); 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