diff options
author | Campbell Barton <ideasman42@gmail.com> | 2017-08-05 00:53:07 +0300 |
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committer | Campbell Barton <ideasman42@gmail.com> | 2017-08-05 00:53:07 +0300 |
commit | 48adef4444a8276ce1d89b122346ae0426493574 (patch) | |
tree | 745c37121fbfb353531382b19be2ce1922f9ecbb /source/blender/editors/space_view3d | |
parent | 796437247f87852026b9632f520bdcf071340b86 (diff) | |
parent | fa05718f278d6810356e64fafcf32c6222d67aab (diff) |
Merge branch 'master' into blender2.8
Diffstat (limited to 'source/blender/editors/space_view3d')
-rw-r--r-- | source/blender/editors/space_view3d/view3d_view.c | 93 |
1 files changed, 87 insertions, 6 deletions
diff --git a/source/blender/editors/space_view3d/view3d_view.c b/source/blender/editors/space_view3d/view3d_view.c index 580213e1fb5..3ffd21294df 100644 --- a/source/blender/editors/space_view3d/view3d_view.c +++ b/source/blender/editors/space_view3d/view3d_view.c @@ -812,19 +812,100 @@ bool ED_view3d_boundbox_clip(RegionView3D *rv3d, const BoundBox *bb) return view3d_boundbox_clip_m4(bb, rv3d->persmatob); } -float ED_view3d_depth_read_cached(const ViewContext *vc, int x, int y) +/* -------------------------------------------------------------------- */ + +/** \name Depth Utilities + * \{ */ + +float ED_view3d_depth_read_cached(const ViewContext *vc, const int mval[2]) { ViewDepths *vd = vc->rv3d->depths; - x -= vc->ar->winrct.xmin; - y -= vc->ar->winrct.ymin; + int x = mval[0]; + int y = mval[1]; - if (vd && vd->depths && x > 0 && y > 0 && x < vd->w && y < vd->h) + if (vd && vd->depths && x > 0 && y > 0 && x < vd->w && y < vd->h) { return vd->depths[y * vd->w + x]; - else - return 1; + } + else { + BLI_assert(1.0 <= vd->depth_range[1]); + return 1.0f; + } } +bool ED_view3d_depth_read_cached_normal( + const ViewContext *vc, const int mval[2], + float r_normal[3]) +{ + /* Note: we could support passing in a radius. + * For now just read 9 pixels. */ + + /* pixels surrounding */ + bool depths_valid[9] = {false}; + float coords[9][3] = {{0}}; + + ARegion *ar = vc->ar; + const ViewDepths *depths = vc->rv3d->depths; + + for (int x = 0, i = 0; x < 2; x++) { + for (int y = 0; y < 2; y++) { + const int mval_ofs[2] = {mval[0] + (x - 1), mval[1] + (y - 1)}; + + const double depth = (double)ED_view3d_depth_read_cached(vc, mval_ofs); + if ((depth > depths->depth_range[0]) && (depth < depths->depth_range[1])) { + if (ED_view3d_depth_unproject(ar, mval_ofs, depth, coords[i])) { + depths_valid[i] = true; + } + } + i++; + } + } + + const int edges[2][6][2] = { + /* x edges */ + {{0, 1}, {1, 2}, + {3, 4}, {4, 5}, + {6, 7}, {7, 8}}, + /* y edges */ + {{0, 3}, {3, 6}, + {1, 4}, {4, 7}, + {2, 5}, {5, 8}}, + }; + + float cross[2][3] = {{0.0f}}; + + for (int i = 0; i < 6; i++) { + for (int axis = 0; axis < 2; axis++) { + if (depths_valid[edges[axis][i][0]] && depths_valid[edges[axis][i][1]]) { + float delta[3]; + sub_v3_v3v3(delta, coords[edges[axis][i][0]], coords[edges[axis][i][1]]); + add_v3_v3(cross[axis], delta); + } + } + } + + cross_v3_v3v3(r_normal, cross[0], cross[1]); + + if (normalize_v3(r_normal) != 0.0f) { + return true; + } + else { + return false; + } +} + +bool ED_view3d_depth_unproject( + const ARegion *ar, + const int mval[2], const double depth, + float r_location_world[3]) +{ + float centx = (float)mval[0] + 0.5f; + float centy = (float)mval[1] + 0.5f; + return ED_view3d_unproject(ar, centx, centy, depth, r_location_world); +} + +/** \} */ + void ED_view3d_depth_tag_update(RegionView3D *rv3d) { if (rv3d->depths) |