blender::eevee::ShadowDirectional Class Reference

#include <eevee_shadow.hh>

Inherits blender::NonCopyable, and blender::NonMovable.

Public Member Functions
	ShadowDirectional (ShadowModule &module)
	ShadowDirectional (ShadowDirectional &&other)
	~ShadowDirectional ()
Public Member Functions inherited from blender::NonCopyable
	NonCopyable (const NonCopyable &other)=delete
NonCopyable &	operator= (const NonCopyable &other)=delete
	NonCopyable ()=default
	NonCopyable (NonCopyable &&other)=default
NonCopyable &	operator= (NonCopyable &&other)=default

Static Public Member Functions
static float	coverage_get (int lvl)
static float	tile_size_get (int lvl)

Directional Shadow Maps
In order to improve shadow map density, we switch between two tile-map distribution mode. One is beater suited for large FOV (clip-map), the other for really small FOV or Orthographic projections (cascade). Clip-map distribution centers a number of log2 sized tile-maps around the view position. https://developer.nvidia.com/gpugems/gpugems2/part-i-geometric-complexity/chapter-2-terrain-rendering-using-gpu-based-geometry Cascade distribution puts tile-maps along the frustum projection to the light space. https://developer.nvidia.com/gpugems/gpugems3/part-ii-light-and-shadows/chapter-10-parallel-split-shadow-maps-programmable-gpus We choose to distribute cascades linearly to achieve uniform density and simplify lookup. Using clip-map instead of cascades for perspective view also allows for better caching.
void	release_excess_tilemaps (const Light &light, const Camera &camera)
void	end_sync (Light &light, const Camera &camera)

Detailed Description

Definition at line 441 of file eevee_shadow.hh.

Constructor & Destructor Documentation

ShadowDirectional() [1/2]

blender::eevee::ShadowDirectional::ShadowDirectional ( ShadowModule & module )

inline

Definition at line 450 of file eevee_shadow.hh.

ShadowDirectional() [2/2]

blender::eevee::ShadowDirectional::ShadowDirectional ( ShadowDirectional && other )

inline

Definition at line 451 of file eevee_shadow.hh.

~ShadowDirectional()

blender::eevee::ShadowDirectional::~ShadowDirectional ( )

inline

Definition at line 454 of file eevee_shadow.hh.

References blender::eevee::ShadowTileMapPool::release(), and blender::eevee::ShadowModule::tilemap_pool.

Member Function Documentation

coverage_get()

static float blender::eevee::ShadowDirectional::coverage_get ( int lvl )

inlinestatic

Definition at line 470 of file eevee_shadow.hh.

Referenced by blender::eevee::ShadowTileMap::sync_orthographic(), and tile_size_get().

end_sync()

void blender::eevee::ShadowDirectional::end_sync	(	Light &	light,
		const Camera &	camera )

Allocate shadow tile-maps and setup views for rendering.

Definition at line 511 of file eevee_shadow.cc.

References blender::eevee::ShadowTileMapPool::acquire(), int, blender::IndexRange::intersect(), blender::IndexRange::one_after_last(), blender::eevee::SHADOW_PROJECTION_CASCADE, blender::draw::StorageVectorBuffer< T, len >::size(), blender::IndexRange::start(), blender::eevee::ShadowModule::tilemap_pool, and blender::eevee::ShadowTileMapPool::tilemaps_data.

release_excess_tilemaps()

void blender::eevee::ShadowDirectional::release_excess_tilemaps	(	const Light &	light,
		const Camera &	camera )

Release the tile-maps that will not be used in the current frame.

Definition at line 489 of file eevee_shadow.cc.

References blender::IndexRange::intersect(), blender::IndexRange::one_after_last(), blender::eevee::ShadowTileMapPool::release(), blender::eevee::SHADOW_PROJECTION_CASCADE, blender::IndexRange::shift(), blender::IndexRange::start(), and blender::eevee::ShadowModule::tilemap_pool.

tile_size_get()

static float blender::eevee::ShadowDirectional::tile_size_get ( int lvl )

inlinestatic

Definition at line 478 of file eevee_shadow.hh.

References coverage_get(), and SHADOW_TILEMAP_RES.

Referenced by blender::eevee::ShadowModule::begin_sync(), and blender::eevee::ShadowTileMap::sync_orthographic().

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The documentation for this class was generated from the following files:

• eevee_shadow.hh
• eevee_shadow.cc