diff options
Diffstat (limited to 'source/blender/nodes/geometry/nodes/node_geo_curve_primitive_bezier_segment.cc')
| -rw-r--r-- | source/blender/nodes/geometry/nodes/node_geo_curve_primitive_bezier_segment.cc | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/source/blender/nodes/geometry/nodes/node_geo_curve_primitive_bezier_segment.cc b/source/blender/nodes/geometry/nodes/node_geo_curve_primitive_bezier_segment.cc new file mode 100644 index 00000000000..e167219ea6b --- /dev/null +++ b/source/blender/nodes/geometry/nodes/node_geo_curve_primitive_bezier_segment.cc @@ -0,0 +1,149 @@ +/* + * 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. + */ + +#include "BKE_spline.hh" + +#include "UI_interface.h" +#include "UI_resources.h" + +#include "node_geometry_util.hh" + +static bNodeSocketTemplate geo_node_curve_primitive_bezier_segment_in[] = { + {SOCK_INT, N_("Resolution"), 16.0f, 0.0f, 0.0f, 0.0f, 1, 256, PROP_UNSIGNED}, + {SOCK_VECTOR, N_("Start"), -1.0f, 0.0f, 0.0f, 0.0f, -FLT_MAX, FLT_MAX, PROP_TRANSLATION}, + {SOCK_VECTOR, + N_("Start Handle"), + -0.5f, + 0.5f, + 0.0f, + 0.0f, + -FLT_MAX, + FLT_MAX, + PROP_TRANSLATION}, + {SOCK_VECTOR, N_("End Handle"), 0.0f, 0.0f, 0.0f, 0.0f, -FLT_MAX, FLT_MAX, PROP_TRANSLATION}, + {SOCK_VECTOR, N_("End"), 1.0f, 0.0f, 0.0f, 0.0f, -FLT_MAX, FLT_MAX, PROP_TRANSLATION}, + {-1, ""}, +}; + +static bNodeSocketTemplate geo_node_curve_primitive_bezier_segment_out[] = { + {SOCK_GEOMETRY, N_("Curve")}, + {-1, ""}, +}; +static void geo_node_curve_primitive_bezier_segment_layout(uiLayout *layout, + bContext *UNUSED(C), + PointerRNA *ptr) +{ + uiItemR(layout, ptr, "mode", UI_ITEM_R_EXPAND, nullptr, ICON_NONE); +} + +namespace blender::nodes { + +static void geo_node_curve_primitive_bezier_segment_init(bNodeTree *UNUSED(tree), bNode *node) +{ + NodeGeometryCurvePrimitiveBezierSegment *data = (NodeGeometryCurvePrimitiveBezierSegment *) + MEM_callocN(sizeof(NodeGeometryCurvePrimitiveBezierSegment), __func__); + + data->mode = GEO_NODE_CURVE_PRIMITIVE_BEZIER_SEGMENT_POSITION; + node->storage = data; +} + +static std::unique_ptr<CurveEval> create_bezier_segment_curve( + const float3 start, + const float3 start_handle_right, + const float3 end, + const float3 end_handle_left, + const int resolution, + const GeometryNodeCurvePrimitiveBezierSegmentMode mode) +{ + std::unique_ptr<CurveEval> curve = std::make_unique<CurveEval>(); + std::unique_ptr<BezierSpline> spline = std::make_unique<BezierSpline>(); + + if (mode == GEO_NODE_CURVE_PRIMITIVE_BEZIER_SEGMENT_POSITION) { + spline->add_point(start, + BezierSpline::HandleType::Align, + start - (start_handle_right - start) * -1.0f, + BezierSpline::HandleType::Align, + start_handle_right, + 1.0f, + 0.0f); + spline->add_point(end, + BezierSpline::HandleType::Align, + end_handle_left, + BezierSpline::HandleType::Align, + end - (end_handle_left - end) * -1.0f, + 1.0f, + 0.0f); + } + else { + spline->add_point(start, + BezierSpline::HandleType::Align, + start - start_handle_right, + BezierSpline::HandleType::Align, + start + start_handle_right, + 1.0f, + 0.0f); + spline->add_point(end, + BezierSpline::HandleType::Align, + end + end_handle_left, + BezierSpline::HandleType::Align, + end - end_handle_left, + 1.0f, + 0.0f); + } + + spline->set_resolution(resolution); + spline->attributes.reallocate(spline->size()); + curve->add_spline(std::move(spline)); + curve->attributes.reallocate(curve->splines().size()); + return curve; +} + +static void geo_node_curve_primitive_bezier_segment_exec(GeoNodeExecParams params) +{ + const NodeGeometryCurvePrimitiveBezierSegment *node_storage = + (NodeGeometryCurvePrimitiveBezierSegment *)params.node().storage; + const GeometryNodeCurvePrimitiveBezierSegmentMode mode = + (const GeometryNodeCurvePrimitiveBezierSegmentMode)node_storage->mode; + + std::unique_ptr<CurveEval> curve = create_bezier_segment_curve( + params.extract_input<float3>("Start"), + params.extract_input<float3>("Start Handle"), + params.extract_input<float3>("End"), + params.extract_input<float3>("End Handle"), + std::max(params.extract_input<int>("Resolution"), 1), + mode); + params.set_output("Curve", GeometrySet::create_with_curve(curve.release())); +} + +} // namespace blender::nodes + +void register_node_type_geo_curve_primitive_bezier_segment() +{ + static bNodeType ntype; + geo_node_type_base( + &ntype, GEO_NODE_CURVE_PRIMITIVE_BEZIER_SEGMENT, "Bezier Segment", NODE_CLASS_GEOMETRY, 0); + node_type_socket_templates(&ntype, + geo_node_curve_primitive_bezier_segment_in, + geo_node_curve_primitive_bezier_segment_out); + node_type_init(&ntype, blender::nodes::geo_node_curve_primitive_bezier_segment_init); + node_type_storage(&ntype, + "NodeGeometryCurvePrimitiveBezierSegment", + node_free_standard_storage, + node_copy_standard_storage); + ntype.draw_buttons = geo_node_curve_primitive_bezier_segment_layout; + ntype.geometry_node_execute = blender::nodes::geo_node_curve_primitive_bezier_segment_exec; + nodeRegisterType(&ntype); +} |