diff options
Diffstat (limited to 'source/blender/nodes/geometry/nodes/node_geo_distribute_points_on_faces.cc')
| -rw-r--r-- | source/blender/nodes/geometry/nodes/node_geo_distribute_points_on_faces.cc | 154 |
1 files changed, 74 insertions, 80 deletions
diff --git a/source/blender/nodes/geometry/nodes/node_geo_distribute_points_on_faces.cc b/source/blender/nodes/geometry/nodes/node_geo_distribute_points_on_faces.cc index f95601813a3..b84ee33e26f 100644 --- a/source/blender/nodes/geometry/nodes/node_geo_distribute_points_on_faces.cc +++ b/source/blender/nodes/geometry/nodes/node_geo_distribute_points_on_faces.cc @@ -105,6 +105,8 @@ static void sample_mesh_surface(const Mesh &mesh, Vector<float3> &r_bary_coords, Vector<int> &r_looptri_indices) { + const Span<MVert> verts = mesh.verts(); + const Span<MLoop> loops = mesh.loops(); const Span<MLoopTri> looptris{BKE_mesh_runtime_looptri_ensure(&mesh), BKE_mesh_runtime_looptri_len(&mesh)}; @@ -113,12 +115,12 @@ static void sample_mesh_surface(const Mesh &mesh, const int v0_loop = looptri.tri[0]; const int v1_loop = looptri.tri[1]; const int v2_loop = looptri.tri[2]; - const int v0_index = mesh.mloop[v0_loop].v; - const int v1_index = mesh.mloop[v1_loop].v; - const int v2_index = mesh.mloop[v2_loop].v; - const float3 v0_pos = float3(mesh.mvert[v0_index].co); - const float3 v1_pos = float3(mesh.mvert[v1_index].co); - const float3 v2_pos = float3(mesh.mvert[v2_index].co); + const int v0_index = loops[v0_loop].v; + const int v1_index = loops[v1_loop].v; + const int v2_index = loops[v2_loop].v; + const float3 v0_pos = verts[v0_index].co; + const float3 v1_pos = verts[v1_index].co; + const float3 v2_pos = verts[v2_index].co; float looptri_density_factor = 1.0f; if (!density_factors.is_empty()) { @@ -220,11 +222,11 @@ BLI_NOINLINE static void update_elimination_mask_based_on_density_factors( const float v1_density_factor = std::max(0.0f, density_factors[v1_loop]); const float v2_density_factor = std::max(0.0f, density_factors[v2_loop]); - const float probablity = v0_density_factor * bary_coord.x + v1_density_factor * bary_coord.y + - v2_density_factor * bary_coord.z; + const float probability = v0_density_factor * bary_coord.x + v1_density_factor * bary_coord.y + + v2_density_factor * bary_coord.z; const float hash = noise::hash_float_to_float(bary_coord); - if (hash > probablity) { + if (hash > probability) { elimination_mask[i] = true; } } @@ -283,38 +285,38 @@ BLI_NOINLINE static void interpolate_attribute(const Mesh &mesh, } BLI_NOINLINE static void propagate_existing_attributes( - const MeshComponent &mesh_component, + const Mesh &mesh, const Map<AttributeIDRef, AttributeKind> &attributes, - GeometryComponent &point_component, + PointCloud &points, const Span<float3> bary_coords, const Span<int> looptri_indices) { - const Mesh &mesh = *mesh_component.get_for_read(); + const AttributeAccessor mesh_attributes = mesh.attributes(); + MutableAttributeAccessor point_attributes = points.attributes_for_write(); for (Map<AttributeIDRef, AttributeKind>::Item entry : attributes.items()) { const AttributeIDRef attribute_id = entry.key; const eCustomDataType output_data_type = entry.value.data_type; - ReadAttributeLookup source_attribute = mesh_component.attribute_try_get_for_read(attribute_id); + GAttributeReader source_attribute = mesh_attributes.lookup(attribute_id); if (!source_attribute) { continue; } /* The output domain is always #ATTR_DOMAIN_POINT, since we are creating a point cloud. */ - OutputAttribute attribute_out = point_component.attribute_try_get_for_output_only( + GSpanAttributeWriter attribute_out = point_attributes.lookup_or_add_for_write_only_span( attribute_id, ATTR_DOMAIN_POINT, output_data_type); if (!attribute_out) { continue; } - GMutableSpan out_span = attribute_out.as_span(); interpolate_attribute(mesh, bary_coords, looptri_indices, source_attribute.domain, source_attribute.varray, - out_span); - attribute_out.save(); + attribute_out.span); + attribute_out.finish(); } } @@ -325,34 +327,31 @@ struct AttributeOutputs { }; } // namespace -BLI_NOINLINE static void compute_attribute_outputs(const MeshComponent &mesh_component, - PointCloudComponent &point_component, +BLI_NOINLINE static void compute_attribute_outputs(const Mesh &mesh, + PointCloud &points, const Span<float3> bary_coords, const Span<int> looptri_indices, const AttributeOutputs &attribute_outputs) { - OutputAttribute_Typed<int> id_attribute = point_component.attribute_try_get_for_output_only<int>( - "id", ATTR_DOMAIN_POINT); - MutableSpan<int> ids = id_attribute.as_span(); + MutableAttributeAccessor point_attributes = points.attributes_for_write(); - OutputAttribute_Typed<float3> normal_attribute; - OutputAttribute_Typed<float3> rotation_attribute; + SpanAttributeWriter<int> ids = point_attributes.lookup_or_add_for_write_only_span<int>( + "id", ATTR_DOMAIN_POINT); - MutableSpan<float3> normals; - MutableSpan<float3> rotations; + SpanAttributeWriter<float3> normals; + SpanAttributeWriter<float3> rotations; if (attribute_outputs.normal_id) { - normal_attribute = point_component.attribute_try_get_for_output_only<float3>( + normals = point_attributes.lookup_or_add_for_write_only_span<float3>( attribute_outputs.normal_id.get(), ATTR_DOMAIN_POINT); - normals = normal_attribute.as_span(); } if (attribute_outputs.rotation_id) { - rotation_attribute = point_component.attribute_try_get_for_output_only<float3>( + rotations = point_attributes.lookup_or_add_for_write_only_span<float3>( attribute_outputs.rotation_id.get(), ATTR_DOMAIN_POINT); - rotations = rotation_attribute.as_span(); } - const Mesh &mesh = *mesh_component.get_for_read(); + const Span<MVert> verts = mesh.verts(); + const Span<MLoop> loops = mesh.loops(); const Span<MLoopTri> looptris{BKE_mesh_runtime_looptri_ensure(&mesh), BKE_mesh_runtime_looptri_len(&mesh)}; @@ -361,55 +360,54 @@ BLI_NOINLINE static void compute_attribute_outputs(const MeshComponent &mesh_com const MLoopTri &looptri = looptris[looptri_index]; const float3 &bary_coord = bary_coords[i]; - const int v0_index = mesh.mloop[looptri.tri[0]].v; - const int v1_index = mesh.mloop[looptri.tri[1]].v; - const int v2_index = mesh.mloop[looptri.tri[2]].v; - const float3 v0_pos = float3(mesh.mvert[v0_index].co); - const float3 v1_pos = float3(mesh.mvert[v1_index].co); - const float3 v2_pos = float3(mesh.mvert[v2_index].co); + const int v0_index = loops[looptri.tri[0]].v; + const int v1_index = loops[looptri.tri[1]].v; + const int v2_index = loops[looptri.tri[2]].v; + const float3 v0_pos = verts[v0_index].co; + const float3 v1_pos = verts[v1_index].co; + const float3 v2_pos = verts[v2_index].co; - ids[i] = noise::hash(noise::hash_float(bary_coord), looptri_index); + ids.span[i] = noise::hash(noise::hash_float(bary_coord), looptri_index); float3 normal; - if (!normals.is_empty() || !rotations.is_empty()) { + if (!normals.span.is_empty() || !rotations.span.is_empty()) { normal_tri_v3(normal, v0_pos, v1_pos, v2_pos); } - if (!normals.is_empty()) { - normals[i] = normal; + if (!normals.span.is_empty()) { + normals.span[i] = normal; } - if (!rotations.is_empty()) { - rotations[i] = normal_to_euler_rotation(normal); + if (!rotations.span.is_empty()) { + rotations.span[i] = normal_to_euler_rotation(normal); } } - id_attribute.save(); + ids.finish(); - if (normal_attribute) { - normal_attribute.save(); + if (normals) { + normals.finish(); } - if (rotation_attribute) { - rotation_attribute.save(); + if (rotations) { + rotations.finish(); } } -static Array<float> calc_full_density_factors_with_selection(const MeshComponent &component, +static Array<float> calc_full_density_factors_with_selection(const Mesh &mesh, const Field<float> &density_field, const Field<bool> &selection_field) { - const eAttrDomain attribute_domain = ATTR_DOMAIN_CORNER; - GeometryComponentFieldContext field_context{component, attribute_domain}; - const int domain_num = component.attribute_domain_num(attribute_domain); + const eAttrDomain domain = ATTR_DOMAIN_CORNER; + const int domain_size = mesh.attributes().domain_size(domain); + Array<float> densities(domain_size, 0.0f); - Array<float> densities(domain_num, 0.0f); - - fn::FieldEvaluator evaluator{field_context, domain_num}; + bke::MeshFieldContext field_context{mesh, domain}; + fn::FieldEvaluator evaluator{field_context, domain_size}; evaluator.set_selection(selection_field); evaluator.add_with_destination(density_field, densities.as_mutable_span()); evaluator.evaluate(); return densities; } -static void distribute_points_random(const MeshComponent &component, +static void distribute_points_random(const Mesh &mesh, const Field<float> &density_field, const Field<bool> &selection_field, const int seed, @@ -418,12 +416,11 @@ static void distribute_points_random(const MeshComponent &component, Vector<int> &looptri_indices) { const Array<float> densities = calc_full_density_factors_with_selection( - component, density_field, selection_field); - const Mesh &mesh = *component.get_for_read(); + mesh, density_field, selection_field); sample_mesh_surface(mesh, 1.0f, densities, seed, positions, bary_coords, looptri_indices); } -static void distribute_points_poisson_disk(const MeshComponent &mesh_component, +static void distribute_points_poisson_disk(const Mesh &mesh, const float minimum_distance, const float max_density, const Field<float> &density_factor_field, @@ -433,14 +430,13 @@ static void distribute_points_poisson_disk(const MeshComponent &mesh_component, Vector<float3> &bary_coords, Vector<int> &looptri_indices) { - const Mesh &mesh = *mesh_component.get_for_read(); sample_mesh_surface(mesh, max_density, {}, seed, positions, bary_coords, looptri_indices); Array<bool> elimination_mask(positions.size(), false); update_elimination_mask_for_close_points(positions, minimum_distance, elimination_mask); const Array<float> density_factors = calc_full_density_factors_with_selection( - mesh_component, density_factor_field, selection_field); + mesh, density_factor_field, selection_field); update_elimination_mask_based_on_density_factors( mesh, density_factors, bary_coords, looptri_indices, elimination_mask.as_mutable_span()); @@ -460,7 +456,7 @@ static void point_distribution_calculate(GeometrySet &geometry_set, return; } - const MeshComponent &mesh_component = *geometry_set.get_component_for_read<MeshComponent>(); + const Mesh &mesh = *geometry_set.get_mesh_for_read(); Vector<float3> positions; Vector<float3> bary_coords; @@ -469,20 +465,15 @@ static void point_distribution_calculate(GeometrySet &geometry_set, switch (method) { case GEO_NODE_POINT_DISTRIBUTE_POINTS_ON_FACES_RANDOM: { const Field<float> density_field = params.get_input<Field<float>>("Density"); - distribute_points_random(mesh_component, - density_field, - selection_field, - seed, - positions, - bary_coords, - looptri_indices); + distribute_points_random( + mesh, density_field, selection_field, seed, positions, bary_coords, looptri_indices); break; } case GEO_NODE_POINT_DISTRIBUTE_POINTS_ON_FACES_POISSON: { const float minimum_distance = params.get_input<float>("Distance Min"); const float density_max = params.get_input<float>("Density Max"); const Field<float> density_factors_field = params.get_input<Field<float>>("Density Factor"); - distribute_points_poisson_disk(mesh_component, + distribute_points_poisson_disk(mesh, minimum_distance, density_max, density_factors_field, @@ -500,12 +491,17 @@ static void point_distribution_calculate(GeometrySet &geometry_set, } PointCloud *pointcloud = BKE_pointcloud_new_nomain(positions.size()); - memcpy(pointcloud->co, positions.data(), sizeof(float3) * positions.size()); - uninitialized_fill_n(pointcloud->radius, pointcloud->totpoint, 0.05f); - geometry_set.replace_pointcloud(pointcloud); + bke::MutableAttributeAccessor point_attributes = pointcloud->attributes_for_write(); + bke::SpanAttributeWriter<float3> point_positions = + point_attributes.lookup_or_add_for_write_only_span<float3>("position", ATTR_DOMAIN_POINT); + bke::SpanAttributeWriter<float> point_radii = + point_attributes.lookup_or_add_for_write_only_span<float>("radius", ATTR_DOMAIN_POINT); + point_positions.span.copy_from(positions); + point_radii.span.fill(0.05f); + point_positions.finish(); + point_radii.finish(); - PointCloudComponent &point_component = - geometry_set.get_component_for_write<PointCloudComponent>(); + geometry_set.replace_pointcloud(pointcloud); Map<AttributeIDRef, AttributeKind> attributes; geometry_set.gather_attributes_for_propagation( @@ -514,11 +510,9 @@ static void point_distribution_calculate(GeometrySet &geometry_set, /* Position is set separately. */ attributes.remove("position"); - propagate_existing_attributes( - mesh_component, attributes, point_component, bary_coords, looptri_indices); + propagate_existing_attributes(mesh, attributes, *pointcloud, bary_coords, looptri_indices); - compute_attribute_outputs( - mesh_component, point_component, bary_coords, looptri_indices, attribute_outputs); + compute_attribute_outputs(mesh, *pointcloud, bary_coords, looptri_indices, attribute_outputs); } static void node_geo_exec(GeoNodeExecParams params) @@ -544,7 +538,7 @@ static void node_geo_exec(GeoNodeExecParams params) geometry_set, selection_field, method, seed, attribute_outputs, params); /* Keep instances because the original geometry set may contain instances that are processed as * well. */ - geometry_set.keep_only({GEO_COMPONENT_TYPE_POINT_CLOUD, GEO_COMPONENT_TYPE_INSTANCES}); + geometry_set.keep_only_during_modify({GEO_COMPONENT_TYPE_POINT_CLOUD}); }); params.set_output("Points", std::move(geometry_set)); |