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Snap System: Return depth by snapping to edges and vertices, because the Ruler only works right this way

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The Ruler snaps to the element with the lowest depth.
This commit is contained in:
Germano Cavalcante
2017-01-30 22:49:44 -03:00
parent a50b173952
commit b841d60bf8
1 changed files with 28 additions and 17 deletions
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45
source/blender/editors/transform/transform_snap_object.c
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@@ -235,6 +235,12 @@ static void raycast_all_cb(void *userdata, int index, const BVHTreeRay *ray, BVH
/** \Common utilities
* \{ */
MINLINE float depth_get(const float co[3], const float ray_start[3], const float ray_dir[3])
{
float dvec[3];
sub_v3_v3v3(dvec, co, ray_start);
return dot_v3v3(dvec, ray_dir);
}
/**
* Struct that kepts basic information about a BVHTree build from a editmesh.
@@ -509,9 +515,9 @@ static float dist_squared_to_projected_aabb(
/* `if rtmax < depth_min`, the hit is behind us */
if (rtmax < data->depth_range[0]) {
/* Test if the entire AABB is behind us */
float dvec[3];
sub_v3_v3v3(dvec, local_bvmax, data->ray_origin_local);
if (dot_v3v3(dvec, data->ray_direction_local) < (data->depth_range[0])) {
float depth = depth_get(
local_bvmax, data->ray_origin_local, data->ray_direction_local);
if (depth < (data->depth_range[0])) {
return FLT_MAX;
}
}
@@ -524,9 +530,9 @@ static float dist_squared_to_projected_aabb(
/* `if rtmin < depth_min`, the hit is behing us */
else if (rtmin < data->depth_range[0]) {
/* Test if the entire AABB is behind us */
float dvec[3];
sub_v3_v3v3(dvec, local_bvmax, data->ray_origin_local);
if (dot_v3v3(dvec, data->ray_direction_local) < (data->depth_range[0])) {
float depth = depth_get(
local_bvmax, data->ray_origin_local, data->ray_direction_local);
if (depth < (data->depth_range[0])) {
return FLT_MAX;
}
}
@@ -622,9 +628,7 @@ static float dist_aabb_to_plane(
(plane_no[1] < 0) ? bbmax[1] : bbmin[1],
(plane_no[2] < 0) ? bbmax[2] : bbmin[2],
};
float dvec[3];
sub_v3_v3v3(dvec, local_bvmin, plane_co);
return dot_v3v3(dvec, plane_no);
return depth_get(local_bvmin, plane_co, plane_no);
}
/** \} */
@@ -727,7 +731,7 @@ static bool snapArmature(
SnapData *snapdata,
Object *ob, bArmature *arm, float obmat[4][4],
/* read/write args */
float *dist_px,
float *ray_depth, float *dist_px,
/* return args */
float r_loc[3], float *UNUSED(r_no))
{
@@ -813,6 +817,7 @@ static bool snapArmature(
if (retval) {
*dist_px = sqrtf(dist_px_sq);
mul_m4_v3(obmat, r_loc);
*ray_depth = depth_get(r_loc, snapdata->ray_start, snapdata->ray_dir);
return true;
}
return false;
@@ -822,7 +827,7 @@ static bool snapCurve(
SnapData *snapdata,
Object *ob, Curve *cu, float obmat[4][4],
/* read/write args */
float *dist_px,
float *ray_depth, float *dist_px,
/* return args */
float r_loc[3], float *UNUSED(r_no))
{
@@ -909,6 +914,7 @@ static bool snapCurve(
if (retval) {
*dist_px = sqrtf(dist_px_sq);
mul_m4_v3(obmat, r_loc);
*ray_depth = depth_get(r_loc, snapdata->ray_start, snapdata->ray_dir);
return true;
}
return false;
@@ -919,7 +925,7 @@ static bool snapEmpty(
SnapData *snapdata,
Object *ob, float obmat[4][4],
/* read/write args */
float *dist_px,
float *ray_depth, float *dist_px,
/* return args */
float r_loc[3], float *UNUSED(r_no))
{
@@ -942,6 +948,7 @@ static bool snapEmpty(
snapdata->pmat, snapdata->win_half, is_persp, &dist_px_sq,
r_loc)) {
*dist_px = sqrtf(dist_px_sq);
*ray_depth = depth_get(r_loc, snapdata->ray_start, snapdata->ray_dir);
retval = true;
}
break;
@@ -957,7 +964,7 @@ static bool snapCamera(
const SnapObjectContext *sctx, SnapData *snapdata,
Object *object, float obmat[4][4],
/* read/write args */
float *dist_px,
float *ray_depth, float *dist_px,
/* return args */
float r_loc[3], float *UNUSED(r_no))
{
@@ -1039,6 +1046,7 @@ static bool snapCamera(
if (retval) {
*dist_px = sqrtf(dist_px_sq);
*ray_depth = depth_get(r_loc, snapdata->ray_start, snapdata->ray_dir);
return true;
}
return false;
@@ -1337,6 +1345,7 @@ static bool snapDerivedMesh(
normalize_v3(r_no);
}
*dist_px = sqrtf(neasrest2d.dist_px_sq);
*ray_depth = depth_get(r_loc, snapdata->ray_start, snapdata->ray_dir);
retval = true;
}
@@ -1629,6 +1638,7 @@ static bool snapEditMesh(
normalize_v3(r_no);
}
*dist_px = sqrtf(neasrest2d.dist_px_sq);
*ray_depth = depth_get(r_loc, snapdata->ray_start, snapdata->ray_dir);
retval = true;
}
@@ -1698,27 +1708,28 @@ static bool snapObject(
if (ob->type == OB_ARMATURE) {
retval = snapArmature(
snapdata,
ob, ob->data, obmat, dist_px,
ob, ob->data, obmat,
ray_depth, dist_px,
r_loc, r_no);
}
else if (ob->type == OB_CURVE) {
retval = snapCurve(
snapdata,
ob, ob->data, obmat,
dist_px,
ray_depth, dist_px,
r_loc, r_no);
}
else if (ob->type == OB_EMPTY) {
retval = snapEmpty(
snapdata,
ob, obmat,
dist_px,
ray_depth, dist_px,
r_loc, r_no);
}
else if (ob->type == OB_CAMERA) {
retval = snapCamera(
sctx, snapdata, ob, obmat,
dist_px,
ray_depth, dist_px,
r_loc, r_no);
}
}