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/*
* 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_colorband.h"
#include "UI_interface.h"
#include "UI_resources.h"
#include "node_geometry_util.hh"
namespace blender::nodes {
static void geo_node_point_scale_declare(NodeDeclarationBuilder &b)
{
b.add_input<decl::Geometry>("Geometry");
b.add_input<decl::String>("Factor");
b.add_input<decl::Vector>("Factor", "Factor_001")
.default_value({1.0f, 1.0f, 1.0f})
.subtype(PROP_XYZ);
b.add_input<decl::Float>("Factor", "Factor_002").default_value(1.0f).min(0.0f);
b.add_output<decl::Geometry>("Geometry");
}
static void geo_node_point_scale_layout(uiLayout *layout, bContext *UNUSED(C), PointerRNA *ptr)
{
uiLayoutSetPropSep(layout, true);
uiLayoutSetPropDecorate(layout, false);
uiItemR(layout, ptr, "input_type", 0, IFACE_("Type"), ICON_NONE);
}
static void geo_node_point_scale_init(bNodeTree *UNUSED(tree), bNode *node)
{
NodeGeometryPointScale *data = (NodeGeometryPointScale *)MEM_callocN(
sizeof(NodeGeometryPointScale), __func__);
data->input_type = GEO_NODE_ATTRIBUTE_INPUT_VECTOR;
node->storage = data;
}
static void geo_node_point_scale_update(bNodeTree *UNUSED(ntree), bNode *node)
{
NodeGeometryPointScale &node_storage = *(NodeGeometryPointScale *)node->storage;
update_attribute_input_socket_availabilities(
*node, "Factor", (GeometryNodeAttributeInputMode)node_storage.input_type);
}
static void execute_on_component(GeoNodeExecParams params, GeometryComponent &component)
{
/* Note that scale doesn't necessarily need to be created with a vector type-- it could also use
* the highest complexity of the existing attribute's type (if it exists) and the data type used
* for the factor. But for it's simpler to simply always use float3, since that is usually
* expected anyway. */
static const float3 scale_default = float3(1.0f);
OutputAttribute_Typed<float3> scale_attribute = component.attribute_try_get_for_output(
"scale", ATTR_DOMAIN_POINT, CD_PROP_FLOAT3, &scale_default);
if (!scale_attribute) {
return;
}
const bNode &node = params.node();
const NodeGeometryPointScale &node_storage = *(const NodeGeometryPointScale *)node.storage;
const GeometryNodeAttributeInputMode input_type = (GeometryNodeAttributeInputMode)
node_storage.input_type;
const CustomDataType data_type = (input_type == GEO_NODE_ATTRIBUTE_INPUT_FLOAT) ? CD_PROP_FLOAT :
CD_PROP_FLOAT3;
GVArrayPtr attribute = params.get_input_attribute(
"Factor", component, ATTR_DOMAIN_POINT, data_type, nullptr);
if (!attribute) {
return;
}
MutableSpan<float3> scale_span = scale_attribute.as_span();
if (data_type == CD_PROP_FLOAT) {
GVArray_Typed<float> factors{*attribute};
for (const int i : scale_span.index_range()) {
scale_span[i] = scale_span[i] * factors[i];
}
}
else if (data_type == CD_PROP_FLOAT3) {
GVArray_Typed<float3> factors{*attribute};
for (const int i : scale_span.index_range()) {
scale_span[i] = scale_span[i] * factors[i];
}
}
scale_attribute.save();
}
static void geo_node_point_scale_exec(GeoNodeExecParams params)
{
GeometrySet geometry_set = params.extract_input<GeometrySet>("Geometry");
geometry_set = geometry_set_realize_instances(geometry_set);
if (geometry_set.has<MeshComponent>()) {
execute_on_component(params, geometry_set.get_component_for_write<MeshComponent>());
}
if (geometry_set.has<PointCloudComponent>()) {
execute_on_component(params, geometry_set.get_component_for_write<PointCloudComponent>());
}
if (geometry_set.has<CurveComponent>()) {
execute_on_component(params, geometry_set.get_component_for_write<CurveComponent>());
}
params.set_output("Geometry", std::move(geometry_set));
}
} // namespace blender::nodes
void register_node_type_geo_point_scale()
{
static bNodeType ntype;
geo_node_type_base(&ntype, GEO_NODE_LEGACY_POINT_SCALE, "Point Scale", NODE_CLASS_GEOMETRY, 0);
ntype.declare = blender::nodes::geo_node_point_scale_declare;
node_type_init(&ntype, blender::nodes::geo_node_point_scale_init);
node_type_update(&ntype, blender::nodes::geo_node_point_scale_update);
node_type_storage(
&ntype, "NodeGeometryPointScale", node_free_standard_storage, node_copy_standard_storage);
ntype.geometry_node_execute = blender::nodes::geo_node_point_scale_exec;
ntype.draw_buttons = blender::nodes::geo_node_point_scale_layout;
nodeRegisterType(&ntype);
}
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