diff options
Diffstat (limited to 'source/blender/nodes/geometry/nodes/node_geo_curve_primitive_line.cc')
| -rw-r--r-- | source/blender/nodes/geometry/nodes/node_geo_curve_primitive_line.cc | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/source/blender/nodes/geometry/nodes/node_geo_curve_primitive_line.cc b/source/blender/nodes/geometry/nodes/node_geo_curve_primitive_line.cc new file mode 100644 index 00000000000..eed3a998ef6 --- /dev/null +++ b/source/blender/nodes/geometry/nodes/node_geo_curve_primitive_line.cc @@ -0,0 +1,146 @@ +/* + * 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_line_in[] = { + {SOCK_VECTOR, N_("Start"), 0.0f, 0.0f, 0.0f, 0.0f, -FLT_MAX, FLT_MAX, PROP_TRANSLATION}, + {SOCK_VECTOR, N_("End"), 0.0f, 0.0f, 1.0f, 0.0f, -FLT_MAX, FLT_MAX, PROP_TRANSLATION}, + {SOCK_VECTOR, N_("Direction"), 0.0f, 0.0f, 1.0f, 0.0f, -FLT_MAX, FLT_MAX}, + {SOCK_FLOAT, N_("Length"), 1.0f, 0.0f, 0.0f, 0.0f, -FLT_MAX, FLT_MAX, PROP_DISTANCE}, + {-1, ""}, +}; + +static bNodeSocketTemplate geo_node_curve_primitive_line_out[] = { + {SOCK_GEOMETRY, N_("Curve")}, + {-1, ""}, +}; + +static void geo_node_curve_primitive_line_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_line_init(bNodeTree *UNUSED(tree), bNode *node) +{ + NodeGeometryCurvePrimitiveLine *data = (NodeGeometryCurvePrimitiveLine *)MEM_callocN( + sizeof(NodeGeometryCurvePrimitiveLine), __func__); + + data->mode = GEO_NODE_CURVE_PRIMITIVE_LINE_MODE_POINTS; + node->storage = data; +} + +static void geo_node_curve_primitive_line_update(bNodeTree *UNUSED(ntree), bNode *node) +{ + const NodeGeometryCurvePrimitiveLine *node_storage = (NodeGeometryCurvePrimitiveLine *) + node->storage; + const GeometryNodeCurvePrimitiveLineMode mode = (const GeometryNodeCurvePrimitiveLineMode) + node_storage->mode; + + bNodeSocket *p2_socket = ((bNodeSocket *)node->inputs.first)->next; + bNodeSocket *direction_socket = p2_socket->next; + bNodeSocket *length_socket = direction_socket->next; + + nodeSetSocketAvailability(p2_socket, mode == GEO_NODE_CURVE_PRIMITIVE_LINE_MODE_POINTS); + nodeSetSocketAvailability(direction_socket, + mode == GEO_NODE_CURVE_PRIMITIVE_LINE_MODE_DIRECTION); + nodeSetSocketAvailability(length_socket, mode == GEO_NODE_CURVE_PRIMITIVE_LINE_MODE_DIRECTION); +} + +static std::unique_ptr<CurveEval> create_point_line_curve(const float3 start, const float3 end) +{ + std::unique_ptr<CurveEval> curve = std::make_unique<CurveEval>(); + std::unique_ptr<PolySpline> spline = std::make_unique<PolySpline>(); + + spline->resize(2); + MutableSpan<float3> positions = spline->positions(); + positions[0] = start; + positions[1] = end; + spline->radii().fill(1.0f); + spline->tilts().fill(0.0f); + curve->add_spline(std::move(spline)); + curve->attributes.reallocate(curve->splines().size()); + return curve; +} + +static std::unique_ptr<CurveEval> create_direction_line_curve(const float3 start, + const float3 direction, + const float length) +{ + std::unique_ptr<CurveEval> curve = std::make_unique<CurveEval>(); + std::unique_ptr<PolySpline> spline = std::make_unique<PolySpline>(); + + spline->resize(2); + MutableSpan<float3> positions = spline->positions(); + positions[0] = start; + positions[1] = direction.normalized() * length + start; + + spline->radii().fill(1.0f); + spline->tilts().fill(0.0f); + curve->add_spline(std::move(spline)); + curve->attributes.reallocate(curve->splines().size()); + return curve; +} + +static void geo_node_curve_primitive_line_exec(GeoNodeExecParams params) +{ + + const NodeGeometryCurvePrimitiveLine *node_storage = + (NodeGeometryCurvePrimitiveLine *)params.node().storage; + + GeometryNodeCurvePrimitiveLineMode mode = (GeometryNodeCurvePrimitiveLineMode)node_storage->mode; + + std::unique_ptr<CurveEval> curve; + if (mode == GEO_NODE_CURVE_PRIMITIVE_LINE_MODE_POINTS) { + curve = create_point_line_curve(params.extract_input<float3>("Start"), + params.extract_input<float3>("End")); + } + else if (mode == GEO_NODE_CURVE_PRIMITIVE_LINE_MODE_DIRECTION) { + curve = create_direction_line_curve(params.extract_input<float3>("Start"), + params.extract_input<float3>("Direction"), + params.extract_input<float>("Length")); + } + + params.set_output("Curve", GeometrySet::create_with_curve(curve.release())); +} + +} // namespace blender::nodes + +void register_node_type_geo_curve_primitive_line() +{ + static bNodeType ntype; + geo_node_type_base(&ntype, GEO_NODE_CURVE_PRIMITIVE_LINE, "Curve Line", NODE_CLASS_GEOMETRY, 0); + node_type_socket_templates( + &ntype, geo_node_curve_primitive_line_in, geo_node_curve_primitive_line_out); + node_type_init(&ntype, blender::nodes::geo_node_curve_primitive_line_init); + node_type_update(&ntype, blender::nodes::geo_node_curve_primitive_line_update); + node_type_storage(&ntype, + "NodeGeometryCurvePrimitiveLine", + node_free_standard_storage, + node_copy_standard_storage); + ntype.geometry_node_execute = blender::nodes::geo_node_curve_primitive_line_exec; + ntype.draw_buttons = geo_node_curve_primitive_line_layout; + nodeRegisterType(&ntype); +} |