Differential D15982 Diff 56063 source/blender/nodes/geometry/nodes/node_geo_scale_elements.cc

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source/blender/nodes/geometry/nodes/node_geo_scale_elements.cc

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	int element_index,			int element_index,
	VectorSet<int> &r_vertex_indices)>;			VectorSet<int> &r_vertex_indices)>;

	static void scale_vertex_islands_uniformly(Mesh &mesh,			static void scale_vertex_islands_uniformly(Mesh &mesh,
	const Span<ElementIsland> islands,			const Span<ElementIsland> islands,
	const UniformScaleParams &params,			const UniformScaleParams &params,
	const GetVertexIndicesFn get_vertex_indices)			const GetVertexIndicesFn get_vertex_indices)
	{			{
	MutableSpan<MVert> verts = mesh.verts_for_write();			MutableSpan<float3> positions = mesh.positions_for_write();
	const Span<MEdge> edges = mesh.edges();			const Span<MEdge> edges = mesh.edges();
	const Span<MPoly> polys = mesh.polys();			const Span<MPoly> polys = mesh.polys();
	const Span<MLoop> loops = mesh.loops();			const Span<MLoop> loops = mesh.loops();

	threading::parallel_for(islands.index_range(), 256, [&](const IndexRange range) {			threading::parallel_for(islands.index_range(), 256, [&](const IndexRange range) {
	for (const int island_index : range) {			for (const int island_index : range) {
	const ElementIsland &island = islands[island_index];			const ElementIsland &island = islands[island_index];

	float scale = 0.0f;			float scale = 0.0f;
	float3 center = {0.0f, 0.0f, 0.0f};			float3 center = {0.0f, 0.0f, 0.0f};

	VectorSet<int> vertex_indices;			VectorSet<int> vertex_indices;
	for (const int poly_index : island.element_indices) {			for (const int poly_index : island.element_indices) {
	get_vertex_indices(edges, polys, loops, poly_index, vertex_indices);			get_vertex_indices(edges, polys, loops, poly_index, vertex_indices);
	center += params.centers[poly_index];			center += params.centers[poly_index];
	scale += params.scales[poly_index];			scale += params.scales[poly_index];
	}			}

	/* Divide by number of elements to get the average. */			/* Divide by number of elements to get the average. */
	const float f = 1.0f / island.element_indices.size();			const float f = 1.0f / island.element_indices.size();
	scale *= f;			scale *= f;
	center *= f;			center *= f;

	for (const int vert_index : vertex_indices) {			for (const int vert_index : vertex_indices) {
	MVert &vert = verts[vert_index];			positions[vert_index] = transform_with_uniform_scale(positions[vert_index], center, scale);
	const float3 old_position = vert.co;
	const float3 new_position = transform_with_uniform_scale(old_position, center, scale);
	copy_v3_v3(vert.co, new_position);
	}			}
	}			}
	});			});

	BKE_mesh_tag_coords_changed(&mesh);			BKE_mesh_tag_coords_changed(&mesh);
	}			}

	static void scale_vertex_islands_on_axis(Mesh &mesh,			static void scale_vertex_islands_on_axis(Mesh &mesh,
	const Span<ElementIsland> islands,			const Span<ElementIsland> islands,
	const AxisScaleParams &params,			const AxisScaleParams &params,
	const GetVertexIndicesFn get_vertex_indices)			const GetVertexIndicesFn get_vertex_indices)
	{			{
	MutableSpan<MVert> verts = mesh.verts_for_write();			MutableSpan<float3> positions = mesh.positions_for_write();
	const Span<MEdge> edges = mesh.edges();			const Span<MEdge> edges = mesh.edges();
	const Span<MPoly> polys = mesh.polys();			const Span<MPoly> polys = mesh.polys();
	const Span<MLoop> loops = mesh.loops();			const Span<MLoop> loops = mesh.loops();

	threading::parallel_for(islands.index_range(), 256, [&](const IndexRange range) {			threading::parallel_for(islands.index_range(), 256, [&](const IndexRange range) {
	for (const int island_index : range) {			for (const int island_index : range) {
	const ElementIsland &island = islands[island_index];			const ElementIsland &island = islands[island_index];

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	axis *= f;			axis *= f;

	if (math::is_zero(axis)) {			if (math::is_zero(axis)) {
	axis = float3(1.0f, 0.0f, 0.0f);			axis = float3(1.0f, 0.0f, 0.0f);
	}			}

	const float4x4 transform = create_single_axis_transform(center, axis, scale);			const float4x4 transform = create_single_axis_transform(center, axis, scale);
	for (const int vert_index : vertex_indices) {			for (const int vert_index : vertex_indices) {
	MVert &vert = verts[vert_index];			positions[vert_index] = transform * positions[vert_index];
	const float3 old_position = vert.co;
	const float3 new_position = transform * old_position;
	copy_v3_v3(vert.co, new_position);
	}			}
	}			}
	});			});

	BKE_mesh_tag_coords_changed(&mesh);			BKE_mesh_tag_coords_changed(&mesh);
	}			}

	static Vector<ElementIsland> prepare_face_islands(const Mesh &mesh, const IndexMask face_selection)			static Vector<ElementIsland> prepare_face_islands(const Mesh &mesh, const IndexMask face_selection)
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