#include <eevee_lightprobe_volume.hh>

Public Member Functions
	IrradianceBake (Instance &inst)

bool	should_break ()

Baking
void	init (const Object &probe_object)

void	sync ()

void	surfel_raster_views_sync (const float3 &scene_min, const float3 &scene_max, const float4x4 &probe_to_world)

void	surfels_create (const Object &probe_object)

void	surfels_lights_eval ()

void	clusters_build ()

void	raylists_build ()

void	propagate_light ()

void	irradiance_offset ()

void	irradiance_capture ()

LightProbeGridCacheFrame *	read_result_unpacked ()

LightProbeGridCacheFrame *	read_result_packed ()

Detailed Description

Baking related pass and data. Not used at runtime.

Definition at line 32 of file eevee_lightprobe_volume.hh.

Constructor & Destructor Documentation

◆ IrradianceBake()

blender::eevee::IrradianceBake::IrradianceBake ( Instance & inst )

inline

Definition at line 137 of file eevee_lightprobe_volume.hh.

Member Function Documentation

◆ clusters_build()

void blender::eevee::IrradianceBake::clusters_build ( )

Create a surfel lists per irradiance probe in order to compute the virtual baking offset. NOTE: The resulting lists are only valid until clusters_build() or raylists_build() are called since they share the same links inside the Surfel struct.

Definition at line 1138 of file eevee_lightprobe_volume.cc.

References GPU_R32I, GPU_TEXTURE_USAGE_ATOMIC, GPU_TEXTURE_USAGE_SHADER_READ, and GPU_TEXTURE_USAGE_SHADER_WRITE.

Referenced by blender::eevee::Instance::light_bake_irradiance().

◆ init()

void blender::eevee::IrradianceBake::init ( const Object & probe_object )

Definition at line 697 of file eevee_lightprobe_volume.cc.

References Object::data, blender::MatBase< float, 4, 4 >::identity(), LIGHTPROBE_GRID_CAPTURE_EMISSION, LIGHTPROBE_GRID_CAPTURE_INDIRECT, LIGHTPROBE_GRID_CAPTURE_WORLD, blender::math::reduce_max(), and blender::math::to_scale().

Referenced by blender::eevee::Instance::light_bake_irradiance().

◆ irradiance_capture()

void blender::eevee::IrradianceBake::irradiance_capture ( )

Store surfel irradiance inside the irradiance grid samples.

Definition at line 1242 of file eevee_lightprobe_volume.cc.

Referenced by blender::eevee::Instance::light_bake_irradiance().

◆ irradiance_offset()

void blender::eevee::IrradianceBake::irradiance_offset ( )

Compute offset to bias irradiance capture location.

Definition at line 1152 of file eevee_lightprobe_volume.cc.

Referenced by blender::eevee::Instance::light_bake_irradiance().

◆ propagate_light()

void blender::eevee::IrradianceBake::propagate_light ( )

Propagate light from surfel to surfel in a random direction over the sphere.

Definition at line 1230 of file eevee_lightprobe_volume.cc.

Referenced by blender::eevee::Instance::light_bake_irradiance().

◆ raylists_build()

void blender::eevee::IrradianceBake::raylists_build ( )

Create a surfel lists to emulate ray-casts for the current sample random direction. NOTE: The resulting lists are only valid until clusters_build() or raylists_build() are called since they share the same links inside the Surfel struct.

Definition at line 1165 of file eevee_lightprobe_volume.cc.

References ceil_to_multiple_u(), cross(), divide_ceil_u(), e, GPU_storagebuf_clear(), invert(), M_SQRT1_2, blender::math::max(), max, min, normalize(), SURFEL_LIST_GROUP_SIZE, transform_point(), and blender::VecBase< T, Size >::xy().

Referenced by blender::eevee::Instance::light_bake_irradiance().

◆ read_result_packed()

LightProbeGridCacheFrame * blender::eevee::IrradianceBake::read_result_packed ( )

Read grid packed irradiance back to CPU and returns as a LightProbeGridCacheFrame.

Definition at line 1304 of file eevee_lightprobe_volume.cc.

References LightProbeGridCacheFrame::baking, BKE_lightprobe_grid_cache_frame_create(), LightProbeGridCacheFrame::connectivity, copy_v3_v3(), float, GPU_BARRIER_TEXTURE_UPDATE, GPU_DATA_FLOAT, GPU_memory_barrier(), LightProbeGridCacheFrame::irradiance, LightProbeBakingData::L0, LightProbeIrradianceData::L0, LightProbeVisibilityData::L0, LightProbeBakingData::L1_a, LightProbeIrradianceData::L1_a, LightProbeVisibilityData::L1_a, LightProbeBakingData::L1_b, LightProbeIrradianceData::L1_b, LightProbeVisibilityData::L1_b, LightProbeBakingData::L1_c, LightProbeIrradianceData::L1_c, LightProbeVisibilityData::L1_c, MEM_mallocN, MEM_SAFE_FREE, LightProbeGridCacheFrame::size, unit_float_to_uchar_clamp, LightProbeBakingData::validity, LightProbeConnectivityData::validity, and LightProbeGridCacheFrame::visibility.

Referenced by blender::eevee::Instance::light_bake_irradiance().

◆ read_result_unpacked()

LightProbeGridCacheFrame * blender::eevee::IrradianceBake::read_result_unpacked ( )

Read grid unpacked irradiance back to CPU and returns as a LightProbeGridCacheFrame.

Definition at line 1282 of file eevee_lightprobe_volume.cc.

References LightProbeGridCacheFrame::baking, BKE_lightprobe_grid_cache_frame_create(), float, GPU_BARRIER_TEXTURE_UPDATE, GPU_DATA_FLOAT, GPU_memory_barrier(), LightProbeBakingData::L0, LightProbeBakingData::L1_a, LightProbeBakingData::L1_b, LightProbeBakingData::L1_c, LightProbeGridCacheFrame::size, and LightProbeBakingData::validity.

Referenced by blender::eevee::Instance::light_bake_irradiance().

◆ should_break()

bool blender::eevee::IrradianceBake::should_break ( )

inline

True if the bake job should stop.

Definition at line 143 of file eevee_lightprobe_volume.hh.

Referenced by blender::eevee::Instance::light_bake_irradiance().

◆ surfel_raster_views_sync()

void blender::eevee::IrradianceBake::surfel_raster_views_sync	(	const float3 &	scene_min,
		const float3 &	scene_max,
		const float4x4 &	probe_to_world )

Create the views used to rasterize the scene into surfel representation.

Definition at line 817 of file eevee_lightprobe_volume.cc.

References distance(), FLT_MAX, invert(), max, blender::math::midpoint(), min, blender::math::to_loc_rot_scale(), transform_point(), view, and z().

◆ surfels_create()

void blender::eevee::IrradianceBake::surfels_create ( const Object & probe_object )

Create a surfel representation of the scene from the probe using the capture pipeline.

We rasterize the scene along the 3 axes. Each generated fragment will write a surface element so raster grid density need to match the desired surfel density. We do a first pass to know how much surfel to allocate then render again to create the surfels.

Definition at line 879 of file eevee_lightprobe_volume.cc.

References blender::math::abs(), blender::eevee::SphereProbeData::atlas_coord, blender::draw::Manager::bounds_buf, Object::data, blender::math::divide_ceil(), divide_ceil_u(), DRW_stats_group_end(), DRW_stats_group_start(), G, GPU_BARRIER_BUFFER_UPDATE, GPU_BARRIER_SHADER_STORAGE, GPU_max_storage_buffer_size(), GPU_mem_stats_get(), GPU_mem_stats_supported(), GPU_memory_barrier(), GPU_R32F, GPU_RGBA16F, GPU_RGBA32F, GPU_TEXTURE_USAGE_HOST_READ, GPU_TEXTURE_USAGE_SHADER_READ, GPU_TEXTURE_USAGE_SHADER_WRITE, Object::id, blender::draw::detail::Pass< DrawCommandBufType >::init(), int, invert(), IRRADIANCE_BOUNDS_GROUP_SIZE, IRRADIANCE_GRID_GROUP_SIZE, blender::eevee::LIGHTPROBE_IRRADIANCE_BOUNDS, min, ID::name, normalize(), printf, blender::math::reduce_min(), blender::draw::Manager::resource_handle_count(), Surfel, SURFEL_GROUP_SIZE, blender::math::to_scale(), transform_point(), and xy.