[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [48870] branches/soc-2012-bratwurst/source /blender/editors/transform/transform_generics.c: UV transform correction
Antony Riakiotakis
kalast at gmail.com
Thu Jul 12 19:34:13 CEST 2012
Revision: 48870
http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=48870
Author: psy-fi
Date: 2012-07-12 17:34:13 +0000 (Thu, 12 Jul 2012)
Log Message:
-----------
UV transform correction
=========================
* Code for better out-of-mesh-bounds interpolation. For now just choose
one of the boundary faces and do interpolation based on that. Eventually
will do a linear combination for a two-face solve.
Modified Paths:
--------------
branches/soc-2012-bratwurst/source/blender/editors/transform/transform_generics.c
Modified: branches/soc-2012-bratwurst/source/blender/editors/transform/transform_generics.c
===================================================================
--- branches/soc-2012-bratwurst/source/blender/editors/transform/transform_generics.c 2012-07-12 17:19:54 UTC (rev 48869)
+++ branches/soc-2012-bratwurst/source/blender/editors/transform/transform_generics.c 2012-07-12 17:34:13 UTC (rev 48870)
@@ -1711,10 +1711,11 @@
float projv[3];
float uv_result[2];
MLoopUV *luv;
- BMLoop *l = first->l;
BMLoop *l1 = loops[0].loop;
BMLoop *l2 = loops[1].loop;
+ float offset[3] = {0.0, 0.0, 1.0};
+
int index = BM_elem_index_get(td->eve);
int index1 = BM_elem_index_get(l1->v);
int index2 = BM_elem_index_get(l2->v);
@@ -1750,65 +1751,107 @@
if(len_v3(normal) < 0.00001) {
- float edge_uv_perp1[2], edge_uv_perp2[2], uv_perp[2], uv_parallel[2];
- float len1, len2, len;
- float uv_world_ratio, angle, displaced_length;
/* parallel edges, do exceptional solution */
- len1 = len_v3(edge_vec_init1);
- len2 = len_v3(edge_vec_init2);
+ int ax, ay;
+ float det, det1, det2, coeff1, coeff2;
+ float edge_uv_perp1[2], edge_uv_perp2[2];
+ float edge_world_perp1[3], edge_world_perp2[3], edge_world_perp[3], edge_world_parall[3];
+ float uv_displacement1[2], uv_displacement2[2], uvtmp[2];
+ float normal1[3], normal2[3];
+ float angle, displaced_length;
+ BMLoop *ltmp;
+ sub_v3_v3v3(projv, td->eve->co, td->iloc);
+ displaced_length = len_v3(projv);
+
/* first, we need a way to calculate an offset in uv space. A way to do this is to find the mean
* displacement in uv space for each unit of displacement in 3D space. */
- uv_world_ratio = 0.5*(len1/len_v2(edge_uv_init1)
- + len2/len_v2(edge_uv_init2));
+ //uv_world_ratio = 0.5*(len1/len_v2(edge_uv_init1)
+ // + len2/len_v2(edge_uv_init2));
+ /* estimate an angle for parallel to the edges motion and add the appropriate paralel vector.
+ * remember, we still store the cosine here so we are checking for greater value */
+ angle = loops[0].angle;
+
+ if(loops[0].angle >= loops[1].angle) {
+ angle = loops[0].angle;
+ copy_v3_v3(edge_world_parall, edge_vec_init1);
+ } else {
+ angle = loops[1].angle;
+ copy_v3_v3(edge_world_parall, edge_vec_init2);
+ }
+ /* tmp! */
+ copy_v3_v3(edge_world_parall, edge_vec_init1);
+
+ normalize_v3(edge_world_parall);
+ mul_v3_fl(edge_world_parall, angle*displaced_length);
+
+ angle = acos(angle);
+
/* to get an 'outward' direction in uv space, just get the perpendicular vector.
* To get a correct outward vector, we need to negate the vector appropriately
* according to the winding of the loop */
if(loops[0].prev) {
- edge_uv_perp1[0] = -edge_uv_init1[1];
- edge_uv_perp1[1] = edge_uv_init1[0];
+ ltmp = l1->next->next;
+ } else {
+ ltmp = l1->prev->prev;
}
- else {
- edge_uv_perp1[0] = edge_uv_init1[1];
- edge_uv_perp1[1] = -edge_uv_init1[0];
+ sub_v3_v3v3(edge_world_perp1, ltmp->v->co, td->iloc);
+
+ if(uvtc->initial_uvs[BM_elem_index_get(ltmp->v)]) {
+ UVTransCorrInfoUV *uvtmp = uvtc->initial_uvs[BM_elem_index_get(ltmp->v)];
+ while(uvtmp->l != ltmp) {
+ uvtmp = uvtmp->next;
+ }
+ sub_v2_v2v2(edge_uv_perp1, uvtmp->init_uv, uvtcuv->init_uv);
+ } else {
+ luv = CustomData_bmesh_get(&em->bm->ldata, ltmp->head.data, CD_MLOOPUV);
+ sub_v2_v2v2(edge_uv_perp1, luv->uv, uvtcuv->init_uv);
}
- if(loops[1].prev) {
- edge_uv_perp2[0] = -edge_uv_init2[1];
- edge_uv_perp2[1] = edge_uv_init2[0];
- }
- else {
- edge_uv_perp2[0] = edge_uv_init2[1];
- edge_uv_perp2[1] = -edge_uv_init2[0];
- }
- /* mean value of perpendicular vectors (can also interpolate with angle but leave at that currently) */
- sub_v3_v3v3(projv, td->eve->co, td->iloc);
- displaced_length = len_v3(projv);
+ cross_v3_v3v3(normal1, edge_vec_init1, edge_world_perp1);
- add_v2_v2v2(uv_perp, edge_uv_perp1, edge_uv_perp2);
+ cross_v3_v3v3(edge_world_perp, edge_vec_init1, normal1);
- /* estimate an angle for parallel to the edges motion and add the appropriate paralel vector.
- * remember, we still store the cosine here so we are checking for greater value */
- if(loops[0].angle >= loops[1].angle) {
- angle = loops[0].angle;
- copy_v2_v2(uv_parallel, edge_uv_init1);
- len = len1;
+ print_v3("world perp",edge_world_perp);
+
+ normalize_v3(edge_world_perp);
+ mul_v3_fl(edge_world_perp, sin(angle)*displaced_length);
+ /* make vertex on the face plane with equal vertical displacemenet */
+ add_v3_v3(edge_world_perp, edge_world_parall);
+
+ /* solve the coefficients for one edge face */
+ axis_dominant_v3(&ax, &ay, normal1);
+
+ det = determinant_m2(edge_world_perp1[ax], edge_vec_init1[ax], edge_world_perp1[ay], edge_vec_init1[ay]);
+ det1 = determinant_m2(edge_world_perp[ax], edge_vec_init1[ax], edge_world_perp[ay], edge_vec_init1[ay]);
+ det2 = determinant_m2(edge_world_perp1[ax], edge_world_perp[ax], edge_world_perp1[ay], edge_world_perp[ay]);
+
+ coeff1 = det1/det;
+ coeff2 = det2/det;
+
+ mul_v2_v2fl(uv_displacement1, edge_uv_perp1, coeff1);
+ mul_v2_v2fl(uvtmp, edge_uv_init1, coeff2);
+ add_v2_v2(uv_displacement1, uvtmp);
+
+ if(loops[1].prev) {
+ ltmp = l1->next->next;
+ luv = CustomData_bmesh_get(&em->bm->ldata, ltmp->head.data, CD_MLOOPUV);
} else {
- angle = loops[1].angle;
- copy_v2_v2(uv_parallel, edge_uv_init2);
- len = len2;
+ ltmp = l1->prev->prev;
+ luv = CustomData_bmesh_get(&em->bm->ldata, ltmp->head.data, CD_MLOOPUV);
}
- /* angle still equals cosine here */
- mul_v2_fl(uv_parallel, angle*displaced_length/len);
+ sub_v3_v3v3(edge_world_perp2, ltmp->v->co, td->iloc);
+ sub_v2_v2v2(edge_uv_perp2, luv->uv, uvtcuv->init_uv);
+ cross_v3_v3v3(normal2, edge_vec_init2, edge_world_perp2);
+ if(loops[1].prev) {
+ cross_v3_v3v3(edge_world_perp, normal2, edge_vec_init1);
+ } else {
+ cross_v3_v3v3(edge_world_perp, edge_vec_init1, normal2);
+ }
- angle = acos(angle);
-
- mul_v2_fl(uv_perp, 0.5*sin(angle)*displaced_length*uv_world_ratio);
-
copy_v2_v2(uv_result, first->init_uv);
- add_v2_v2(uv_result, uv_parallel);
- add_v2_v2(uv_result, uv_perp);
+ add_v2_v2(uv_result, uv_displacement1);
} else {
int ax, ay;
float det, det1, det2, coeff1, coeff2;
@@ -1833,8 +1876,6 @@
coeff1 = det1/det;
coeff2 = det2/det;
- luv = CustomData_bmesh_get(&em->bm->ldata, l->head.data, CD_MLOOPUV);
-
copy_v2_v2(uv_result, first->init_uv);
mul_v2_v2fl(uvtmp, edge_uv_init1, coeff1);
add_v2_v2(uv_result, uvtmp);
@@ -1849,6 +1890,9 @@
copy_v2_v2(luv->uv, uv_result);
uvtcuv = uvtcuv->next;
}
+
+ //add_v3_v3v3(l1->v->co, uvtc->init_vec[index1], offset);
+ //add_v3_v3v3(l2->v->co, uvtc->init_vec[index2], offset);
}
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