[Bf-blender-cvs] [569510d7044] master: Fix T81529: Can't move with constraint to a zero-size local axis
Germano Cavalcante
noreply at git.blender.org
Thu Oct 8 18:39:50 CEST 2020
Commit: 569510d7044043b42a3abfa55e739a89673ed14f
Author: Germano Cavalcante
Date: Thu Oct 8 13:24:04 2020 -0300
Branches: master
https://developer.blender.org/rB569510d7044043b42a3abfa55e739a89673ed14f
Fix T81529: Can't move with constraint to a zero-size local axis
To fix the problem, it was necessary to create a fallback for the
zero-sized axis in local orientation.
This also affects the gizmos.
===================================================================
M source/blender/editors/transform/transform_constraints.c
M source/blender/editors/transform/transform_convert_object.c
M source/blender/editors/transform/transform_orientations.c
M source/blender/editors/transform/transform_orientations.h
===================================================================
diff --git a/source/blender/editors/transform/transform_constraints.c b/source/blender/editors/transform/transform_constraints.c
index 3a8f53220e2..de1c875a7b0 100644
--- a/source/blender/editors/transform/transform_constraints.c
+++ b/source/blender/editors/transform/transform_constraints.c
@@ -425,7 +425,8 @@ static void applyAxisConstraintVec(
else if (t->con.mode & CON_AXIS1) {
copy_v3_v3(c, t->spacemtx[1]);
}
- else if (t->con.mode & CON_AXIS2) {
+ else {
+ BLI_assert(t->con.mode & CON_AXIS2);
copy_v3_v3(c, t->spacemtx[2]);
}
diff --git a/source/blender/editors/transform/transform_convert_object.c b/source/blender/editors/transform/transform_convert_object.c
index 4bf0f842f2f..97ef1e94d45 100644
--- a/source/blender/editors/transform/transform_convert_object.c
+++ b/source/blender/editors/transform/transform_convert_object.c
@@ -50,6 +50,7 @@
/* Own include. */
#include "transform_convert.h"
+#include "transform_orientations.h"
/* -------------------------------------------------------------------- */
/** \name Object Mode Custom Data
@@ -183,8 +184,7 @@ static void ObjectToTransData(TransInfo *t, TransData *td, Object *ob)
}
/* axismtx has the real orientation */
- copy_m3_m4(td->axismtx, ob->obmat);
- normalize_m3(td->axismtx);
+ transform_orientations_create_from_axis(td->axismtx, UNPACK3(ob->obmat));
td->con = ob->constraints.first;
diff --git a/source/blender/editors/transform/transform_orientations.c b/source/blender/editors/transform/transform_orientations.c
index 2173df0f208..3cd4c12980c 100644
--- a/source/blender/editors/transform/transform_orientations.c
+++ b/source/blender/editors/transform/transform_orientations.c
@@ -241,6 +241,54 @@ static TransformOrientation *createMeshSpace(bContext *C,
return addMatrixSpace(C, mat, name, overwrite);
}
+bool transform_orientations_create_from_axis(float mat[3][3],
+ const float x[3],
+ const float y[3],
+ const float z[3])
+{
+ bool is_zero[3] = {true, true, true};
+ zero_m3(mat);
+ if (x) {
+ is_zero[0] = normalize_v3_v3(mat[0], x) == 0.0f;
+ }
+ if (y) {
+ is_zero[1] = normalize_v3_v3(mat[1], y) == 0.0f;
+ }
+ if (z) {
+ is_zero[2] = normalize_v3_v3(mat[2], z) == 0.0f;
+ }
+
+ int zero_axis = is_zero[0] + is_zero[1] + is_zero[2];
+ if (zero_axis == 0) {
+ return true;
+ }
+
+ if (zero_axis == 1) {
+ int axis = is_zero[0] ? 0 : is_zero[1] ? 1 : 2;
+ cross_v3_v3v3(mat[axis], mat[(axis + 1) % 3], mat[(axis + 2) % 3]);
+ if (normalize_v3(mat[axis]) != 0.0f) {
+ return true;
+ }
+ }
+ else if (zero_axis == 2) {
+ int axis, a, b;
+ axis = !is_zero[0] ? 0 : !is_zero[1] ? 1 : 2;
+ a = (axis + 1) % 3;
+ b = (axis + 2) % 3;
+
+ mat[a][a] = 1.0f;
+ mat[b][b] = 1.0f;
+ project_plane_v3_v3v3(mat[a], mat[a], mat[axis]);
+ project_plane_v3_v3v3(mat[b], mat[b], mat[axis]);
+ if ((normalize_v3(mat[a]) != 0.0f) && (normalize_v3(mat[b]) != 0.0f)) {
+ return true;
+ }
+ }
+
+ unit_m3(mat);
+ return false;
+}
+
bool createSpaceNormal(float mat[3][3], const float normal[3])
{
float tangent[3] = {0.0f, 0.0f, 1.0f};
@@ -493,8 +541,7 @@ short ED_transform_calc_orientation_from_type_ex(const bContext *C,
ED_getTransformOrientationMatrix(C, ob, obedit, pivot_point, r_mat);
}
else {
- copy_m3_m4(r_mat, ob->obmat);
- normalize_m3(r_mat);
+ transform_orientations_create_from_axis(r_mat, UNPACK3(ob->obmat));
}
return V3D_ORIENT_LOCAL;
}
@@ -607,7 +654,7 @@ void transform_orientations_current_set(TransInfo *t, const short orient_index)
BLI_strncpy(t->spacename, spacename, sizeof(t->spacename));
copy_m3_m3(t->spacemtx, t->orient[orient_index].matrix);
- invert_m3_m3(t->spacemtx_inv, t->spacemtx);
+ invert_m3_m3_safe_ortho(t->spacemtx_inv, t->spacemtx);
t->orient_curr = orient_index;
}
diff --git a/source/blender/editors/transform/transform_orientations.h b/source/blender/editors/transform/transform_orientations.h
index 7013501ce12..e9c146a6853 100644
--- a/source/blender/editors/transform/transform_orientations.h
+++ b/source/blender/editors/transform/transform_orientations.h
@@ -34,6 +34,10 @@ const char *transform_orientations_spacename_get(struct TransInfo *t, const shor
void transform_orientations_current_set(struct TransInfo *t, const short orient_index);
/* Those two fill in mat and return non-zero on success */
+bool transform_orientations_create_from_axis(float mat[3][3],
+ const float x[3],
+ const float y[3],
+ const float z[3]);
bool createSpaceNormal(float mat[3][3], const float normal[3]);
bool createSpaceNormalTangent(float mat[3][3], const float normal[3], const float tangent[3]);
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