e955c94ed3
Listing the "Blender Foundation" as copyright holder implied the Blender Foundation holds copyright to files which may include work from many developers. While keeping copyright on headers makes sense for isolated libraries, Blender's own code may be refactored or moved between files in a way that makes the per file copyright holders less meaningful. Copyright references to the "Blender Foundation" have been replaced with "Blender Authors", with the exception of `./extern/` since these this contains libraries which are more isolated, any changed to license headers there can be handled on a case-by-case basis. Some directories in `./intern/` have also been excluded: - `./intern/cycles/` it's own `AUTHORS` file is planned. - `./intern/opensubdiv/`. An "AUTHORS" file has been added, using the chromium projects authors file as a template. Design task: #110784 Ref !110783.
104 lines
3.4 KiB
C++
104 lines
3.4 KiB
C++
/* SPDX-FileCopyrightText: 2021 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup bke
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*/
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#pragma once
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#include "BKE_subdiv.hh"
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#include "BLI_sys_types.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Hardcoded for until GPU shaders are automatically generated, then we will have a more
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* programmatic way of detecting this. */
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#define MAX_GPU_SUBDIV_SSBOS 12
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struct Mesh;
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struct Object;
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struct Scene;
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struct Subdiv;
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struct SubdivSettings;
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struct SubsurfModifierData;
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/* Runtime subsurf modifier data, cached in modifier on evaluated meshes. */
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struct SubsurfRuntimeData {
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/* Subdivision settings, exists before descriptor or mesh wrapper is created. */
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SubdivSettings settings;
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/* Cached subdivision surface descriptor, with topology and settings. */
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Subdiv *subdiv_cpu;
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Subdiv *subdiv_gpu;
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/* Recent usage markers for UI diagnostics. To avoid UI flicker due to races
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* between evaluation and UI redraw, they are set to 2 when an evaluator is used,
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* and count down every frame. */
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char used_cpu, used_gpu;
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/* Cached mesh wrapper data, to be used for GPU subdiv or lazy evaluation on CPU. */
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bool has_gpu_subdiv;
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int resolution;
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bool use_optimal_display;
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bool calc_loop_normals;
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bool use_loop_normals;
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/* Cached from the draw code for stats display. */
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int stats_totvert;
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int stats_totedge;
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int stats_faces_num;
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int stats_totloop;
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};
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SubdivSettings BKE_subsurf_modifier_settings_init(const SubsurfModifierData *smd,
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bool use_render_params);
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bool BKE_subsurf_modifier_runtime_init(SubsurfModifierData *smd, bool use_render_params);
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bool BKE_subsurf_modifier_use_custom_loop_normals(const SubsurfModifierData *smd,
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const Mesh *mesh);
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/**
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* Return true if GPU subdivision evaluation is disabled by force due to incompatible mesh or
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* modifier settings. This will only return true if GPU subdivision is enabled in the preferences
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* and supported by the GPU. It is mainly useful for showing UI messages.
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*/
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bool BKE_subsurf_modifier_force_disable_gpu_evaluation_for_mesh(const SubsurfModifierData *smd,
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const Mesh *mesh);
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/**
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* \param skip_check_is_last: When true, we assume that the modifier passed is the last enabled
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* modifier in the stack.
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*/
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bool BKE_subsurf_modifier_can_do_gpu_subdiv(const Scene *scene,
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const Object *ob,
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const Mesh *mesh,
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const SubsurfModifierData *smd,
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int required_mode);
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bool BKE_subsurf_modifier_has_gpu_subdiv(const Mesh *mesh);
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extern void (*BKE_subsurf_modifier_free_gpu_cache_cb)(Subdiv *subdiv);
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/**
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* Main goal of this function is to give usable subdivision surface descriptor
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* which matches settings and topology.
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*/
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Subdiv *BKE_subsurf_modifier_subdiv_descriptor_ensure(SubsurfRuntimeData *runtime_data,
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const Mesh *mesh,
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bool for_draw_code);
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/**
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* Return the #ModifierMode required for the evaluation of the subsurf modifier,
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* which should be used to check if the modifier is enabled.
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*/
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int BKE_subsurf_modifier_eval_required_mode(bool is_final_render, bool is_edit_mode);
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#ifdef __cplusplus
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}
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#endif
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