a428815716
This option was not exposed in the Blender UI, so no user visible effect. Take into account light area when building light tree. Ref #136958
158 lines
3.9 KiB
C++
158 lines
3.9 KiB
C++
/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
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*
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* SPDX-License-Identifier: Apache-2.0 */
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#pragma once
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#include "kernel/types.h"
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#include "graph/node.h"
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#include "scene/geometry.h"
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#include "util/ies.h"
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#include "util/thread.h"
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#include "util/types.h"
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#include "util/unique_ptr.h"
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#include "util/vector.h"
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CCL_NAMESPACE_BEGIN
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class Device;
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class DeviceScene;
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class Object;
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class Progress;
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class Scene;
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class Shader;
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class Light : public Geometry {
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public:
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NODE_DECLARE;
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Light();
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NODE_SOCKET_API(LightType, light_type)
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NODE_SOCKET_API(float3, strength)
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NODE_SOCKET_API(float, size)
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NODE_SOCKET_API(float, angle)
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NODE_SOCKET_API(float, sizeu)
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NODE_SOCKET_API(float, sizev)
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NODE_SOCKET_API(bool, ellipse)
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NODE_SOCKET_API(float, spread)
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NODE_SOCKET_API(int, map_resolution)
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NODE_SOCKET_API(float, average_radiance)
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NODE_SOCKET_API(bool, is_sphere)
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NODE_SOCKET_API(float, spot_angle)
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NODE_SOCKET_API(float, spot_smooth)
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NODE_SOCKET_API(bool, cast_shadow)
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NODE_SOCKET_API(bool, use_mis)
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NODE_SOCKET_API(bool, use_caustics)
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NODE_SOCKET_API(bool, is_portal)
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NODE_SOCKET_API(bool, is_enabled)
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NODE_SOCKET_API(int, max_bounces)
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/* Normalize power by the surface area of the light. */
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NODE_SOCKET_API(bool, normalize)
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void tag_update(Scene *scene);
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/* Check whether the light has contribution the scene. */
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bool has_contribution(const Scene *scene, const Object *object);
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/* Shader */
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Shader *get_shader() const;
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float area(const Transform &tfm) const;
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/* Geometry */
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void compute_bounds() override;
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void apply_transform(const Transform &tfm, const bool apply_to_motion) override;
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void get_uv_tiles(ustring map, unordered_set<int> &tiles) override;
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PrimitiveType primitive_type() const override;
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friend class LightManager;
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friend class LightTree;
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};
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class LightManager {
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public:
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enum : uint32_t {
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MESH_NEED_REBUILD = (1 << 0),
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EMISSIVE_MESH_MODIFIED = (1 << 1),
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LIGHT_MODIFIED = (1 << 2),
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LIGHT_ADDED = (1 << 3),
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LIGHT_REMOVED = (1 << 4),
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OBJECT_MANAGER = (1 << 5),
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SHADER_COMPILED = (1 << 6),
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SHADER_MODIFIED = (1 << 7),
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/* tag everything in the manager for an update */
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UPDATE_ALL = ~0u,
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UPDATE_NONE = 0u,
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};
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/* Need to update background (including multiple importance map) */
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bool need_update_background;
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LightManager();
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/* IES texture management */
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int add_ies(const string &content);
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int add_ies_from_file(const string &filename);
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void remove_ies(const int slot);
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void device_update(Device *device, DeviceScene *dscene, Scene *scene, Progress &progress);
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void device_free(Device *device, DeviceScene *dscene, const bool free_background = true);
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void tag_update(Scene *scene, const uint32_t flag);
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bool need_update() const;
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/* Check whether there is a background light. */
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bool has_background_light(Scene *scene);
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protected:
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/* Optimization: disable light which is either unsupported or
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* which doesn't contribute to the scene or which is only used for MIS
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* and scene doesn't need MIS.
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*/
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void test_enabled_lights(Scene *scene);
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void device_update_lights(DeviceScene *dscene, Scene *scene);
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void device_update_distribution(Device *device,
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DeviceScene *dscene,
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Scene *scene,
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Progress &progress);
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void device_update_tree(Device *device, DeviceScene *dscene, Scene *scene, Progress &progress);
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void device_update_background(Device *device,
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DeviceScene *dscene,
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Scene *scene,
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Progress &progress);
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void device_update_ies(DeviceScene *dscene);
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struct IESSlot {
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IESFile ies;
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uint hash;
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int users;
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};
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vector<unique_ptr<IESSlot>> ies_slots;
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thread_mutex ies_mutex;
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bool last_background_enabled;
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int last_background_resolution;
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uint32_t update_flags;
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};
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CCL_NAMESPACE_END
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