diff options
Diffstat (limited to 'source/blender/draw/engines/overlay/overlay_viewer_attribute.cc')
| -rw-r--r-- | source/blender/draw/engines/overlay/overlay_viewer_attribute.cc | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/source/blender/draw/engines/overlay/overlay_viewer_attribute.cc b/source/blender/draw/engines/overlay/overlay_viewer_attribute.cc new file mode 100644 index 00000000000..c0d74ea73f3 --- /dev/null +++ b/source/blender/draw/engines/overlay/overlay_viewer_attribute.cc @@ -0,0 +1,181 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +/** \file + * \ingroup draw_engine + */ + +#include "DRW_render.h" + +#include "DNA_mesh_types.h" +#include "DNA_pointcloud_types.h" + +#include "BLI_math_vector.hh" +#include "BLI_span.hh" + +#include "GPU_batch.h" + +#include "BKE_attribute.hh" +#include "BKE_curves.hh" +#include "BKE_duplilist.h" +#include "BKE_geometry_set.hh" + +#include "draw_cache_extract.hh" +#include "draw_cache_impl.h" +#include "overlay_private.hh" + +void OVERLAY_viewer_attribute_cache_init(OVERLAY_Data *vedata) +{ + OVERLAY_PassList *psl = vedata->psl; + OVERLAY_PrivateData *pd = vedata->stl->pd; + + const DRWState state = DRW_STATE_WRITE_COLOR | DRW_STATE_DEPTH_LESS_EQUAL | + DRW_STATE_BLEND_ALPHA; + DRW_PASS_CREATE(psl->attribute_ps, state | pd->clipping_state); + + GPUShader *mesh_sh = OVERLAY_shader_viewer_attribute_mesh(); + GPUShader *pointcloud_sh = OVERLAY_shader_viewer_attribute_pointcloud(); + GPUShader *curve_sh = OVERLAY_shader_viewer_attribute_curve(); + GPUShader *curves_sh = OVERLAY_shader_viewer_attribute_curves(); + GPUShader *uniform_sh = OVERLAY_shader_uniform_color(); + GPUShader *uniform_pointcloud_sh = OVERLAY_shader_uniform_color_pointcloud(); + pd->viewer_attribute_mesh_grp = DRW_shgroup_create(mesh_sh, psl->attribute_ps); + pd->viewer_attribute_pointcloud_grp = DRW_shgroup_create(pointcloud_sh, psl->attribute_ps); + pd->viewer_attribute_curve_grp = DRW_shgroup_create(curve_sh, psl->attribute_ps); + pd->viewer_attribute_curves_grp = DRW_shgroup_create(curves_sh, psl->attribute_ps); + pd->viewer_attribute_instance_grp = DRW_shgroup_create(uniform_sh, psl->attribute_ps); + pd->viewer_attribute_instance_pointcloud_grp = DRW_shgroup_create(uniform_pointcloud_sh, + psl->attribute_ps); +} + +static void populate_cache_for_instance(Object &object, + OVERLAY_PrivateData &pd, + const DupliObject &dupli_object, + const float opacity) +{ + using namespace blender; + using namespace blender::bke; + + const GeometrySet &base_geometry = *dupli_object.preview_base_geometry; + const InstancesComponent &instances = + *base_geometry.get_component_for_read<InstancesComponent>(); + const AttributeAccessor instance_attributes = *instances.attributes(); + const VArray attribute = instance_attributes.lookup<ColorGeometry4f>(".viewer"); + if (!attribute) { + return; + } + ColorGeometry4f color = attribute.get(dupli_object.preview_instance_index); + color.a *= opacity; + switch (object.type) { + case OB_MESH: { + { + DRWShadingGroup *sub_grp = DRW_shgroup_create_sub(pd.viewer_attribute_instance_grp); + DRW_shgroup_uniform_vec4_copy(sub_grp, "ucolor", color); + GPUBatch *batch = DRW_cache_mesh_surface_get(&object); + DRW_shgroup_call(sub_grp, batch, &object); + } + if (GPUBatch *batch = DRW_cache_mesh_loose_edges_get(&object)) { + DRWShadingGroup *sub_grp = DRW_shgroup_create_sub(pd.viewer_attribute_instance_grp); + DRW_shgroup_uniform_vec4_copy(sub_grp, "ucolor", color); + DRW_shgroup_call(sub_grp, batch, &object); + } + break; + } + case OB_POINTCLOUD: { + DRWShadingGroup *sub_grp = DRW_shgroup_pointcloud_create_sub( + &object, pd.viewer_attribute_pointcloud_grp, nullptr); + DRW_shgroup_uniform_vec4_copy(sub_grp, "ucolor", color); + break; + } + case OB_CURVES_LEGACY: { + DRWShadingGroup *sub_grp = DRW_shgroup_create_sub(pd.viewer_attribute_instance_grp); + DRW_shgroup_uniform_vec4_copy(sub_grp, "ucolor", color); + GPUBatch *batch = DRW_cache_curve_edge_wire_get(&object); + DRW_shgroup_call_obmat(sub_grp, batch, object.obmat); + break; + } + case OB_CURVES: { + /* Not supported yet because instances of this type are currently drawn as legacy curves. + */ + break; + } + } +} + +static void populate_cache_for_geometry(Object &object, + OVERLAY_PrivateData &pd, + const float opacity) +{ + using namespace blender; + using namespace blender::bke; + + switch (object.type) { + case OB_MESH: { + Mesh *mesh = static_cast<Mesh *>(object.data); + if (mesh->attributes().contains(".viewer")) { + GPUBatch *batch = DRW_cache_mesh_surface_viewer_attribute_get(&object); + DRW_shgroup_uniform_float_copy(pd.viewer_attribute_mesh_grp, "opacity", opacity); + DRW_shgroup_call(pd.viewer_attribute_mesh_grp, batch, &object); + } + break; + } + case OB_POINTCLOUD: { + PointCloud *pointcloud = static_cast<PointCloud *>(object.data); + if (pointcloud->attributes().contains(".viewer")) { + GPUVertBuf **vertbuf = DRW_pointcloud_evaluated_attribute(pointcloud, ".viewer"); + DRWShadingGroup *grp = DRW_shgroup_pointcloud_create_sub( + &object, pd.viewer_attribute_pointcloud_grp, nullptr); + DRW_shgroup_uniform_float_copy(grp, "opacity", opacity); + DRW_shgroup_buffer_texture_ref(grp, "attribute_tx", vertbuf); + } + break; + } + case OB_CURVES_LEGACY: { + Curve *curve = static_cast<Curve *>(object.data); + const bke::CurvesGeometry &curves = bke::CurvesGeometry::wrap(curve->curve_eval->geometry); + if (curves.attributes().contains(".viewer")) { + GPUBatch *batch = DRW_cache_curve_edge_wire_viewer_attribute_get(&object); + DRW_shgroup_uniform_float_copy(pd.viewer_attribute_curve_grp, "opacity", opacity); + DRW_shgroup_call_obmat(pd.viewer_attribute_curve_grp, batch, object.obmat); + } + break; + } + case OB_CURVES: { + Curves *curves_id = static_cast<Curves *>(object.data); + const bke::CurvesGeometry &curves = bke::CurvesGeometry::wrap(curves_id->geometry); + if (curves.attributes().contains(".viewer")) { + bool is_point_domain; + GPUVertBuf **texture = DRW_curves_texture_for_evaluated_attribute( + curves_id, ".viewer", &is_point_domain); + DRWShadingGroup *grp = DRW_shgroup_curves_create_sub( + &object, pd.viewer_attribute_curves_grp, nullptr); + DRW_shgroup_uniform_float_copy(pd.viewer_attribute_curves_grp, "opacity", opacity); + DRW_shgroup_uniform_bool_copy(grp, "is_point_domain", is_point_domain); + DRW_shgroup_buffer_texture(grp, "color_tx", *texture); + } + break; + } + } +} + +void OVERLAY_viewer_attribute_cache_populate(OVERLAY_Data *vedata, Object *object) +{ + OVERLAY_PrivateData *pd = vedata->stl->pd; + const float opacity = vedata->stl->pd->overlay.viewer_attribute_opacity; + DupliObject *dupli_object = DRW_object_get_dupli(object); + + if (dupli_object->preview_instance_index >= 0) { + const InstancesComponent &instances = + *dupli_object->preview_base_geometry->get_component_for_read<InstancesComponent>(); + if (instances.attributes()->contains(".viewer")) { + populate_cache_for_instance(*object, *pd, *dupli_object, opacity); + return; + } + } + populate_cache_for_geometry(*object, *pd, opacity); +} + +void OVERLAY_viewer_attribute_draw(OVERLAY_Data *vedata) +{ + OVERLAY_PassList *psl = vedata->psl; + DRW_draw_pass(psl->attribute_ps); +} |