draw_hair.cc File Reference

Contains procedural GPU hair drawing methods. More...

#include "DRW_render.hh"
#include "BLI_string_utils.hh"
#include "BLI_utildefines.h"
#include "DNA_collection_types.h"
#include "DNA_customdata_types.h"
#include "DNA_modifier_types.h"
#include "DNA_particle_types.h"
#include "BKE_duplilist.hh"
#include "GPU_batch.hh"
#include "GPU_capabilities.hh"
#include "GPU_compute.hh"
#include "GPU_context.hh"
#include "GPU_material.hh"
#include "GPU_shader.hh"
#include "GPU_texture.hh"
#include "GPU_vertex_buffer.hh"
#include "DRW_gpu_wrapper.hh"
#include "draw_hair_private.hh"
#include "draw_shader.hh"
#include "draw_shader_shared.hh"
#include "draw_common.hh"

Go to the source code of this file.

Classes
struct	ParticleRefineCall

Namespaces
namespace	blender
namespace	blender::draw

Functions
static void	drw_hair_ensure_vbo ()
void	DRW_hair_init ()
static void	drw_hair_particle_cache_shgrp_attach_resources (DRWShadingGroup *shgrp, ParticleHairCache *cache, const int subdiv)
static void	drw_hair_particle_cache_update_compute (ParticleHairCache *cache, const int subdiv)
static ParticleHairCache *	drw_hair_particle_cache_get (Object *object, ParticleSystem *psys, ModifierData *md, GPUMaterial *gpu_material, int subdiv, int thickness_res)
blender::gpu::VertBuf *	DRW_hair_pos_buffer_get (Object *object, ParticleSystem *psys, ModifierData *md)
void	DRW_hair_duplimat_get (Object *object, ParticleSystem *, ModifierData *, float(*dupli_mat)[4])
DRWShadingGroup *	DRW_shgroup_hair_create_sub (Object *object, ParticleSystem *psys, ModifierData *md, DRWShadingGroup *shgrp_parent, GPUMaterial *gpu_material)
void	DRW_hair_update ()
void	DRW_hair_free ()
void	blender::draw::hair_init ()
static ParticleHairCache *	blender::draw::hair_particle_cache_get (Object *object, ParticleSystem *psys, ModifierData *md, GPUMaterial *gpu_material, int subdiv, int thickness_res)
gpu::VertBuf *	blender::draw::hair_pos_buffer_get (Scene *scene, Object *object, ParticleSystem *psys, ModifierData *md)
void	blender::draw::hair_update (Manager &manager)
void	blender::draw::hair_free ()
template<typename PassT >
blender::gpu::Batch *	blender::draw::hair_sub_pass_setup_implementation (PassT &sub_ps, const Scene *scene, Object *object, ParticleSystem *psys, ModifierData *md, GPUMaterial *gpu_material)
gpu::Batch *	blender::draw::hair_sub_pass_setup (PassMain::Sub &sub_ps, const Scene *scene, Object *object, ParticleSystem *psys, ModifierData *md, GPUMaterial *gpu_material=nullptr)

Variables
static blender::gpu::VertBuf *	g_dummy_vbo = nullptr
static DRWPass *	g_tf_pass
static blender::draw::UniformBuffer< CurvesInfos > *	g_dummy_curves_info = nullptr
static PassSimple *	blender::draw::g_pass = nullptr

Detailed Description

Contains procedural GPU hair drawing methods.

Definition in file draw_hair.cc.

Function Documentation

DRW_hair_duplimat_get()

void DRW_hair_duplimat_get	(	Object *	object,
		ParticleSystem *	psys,
		ModifierData *	md,
		float(*)	dupli_mat[4] )

Definition at line 146 of file draw_hair.cc.

References copy_m4_m4(), DRW_object_get_dupli(), DRW_object_get_dupli_parent(), Object::instance_collection, invert_m4(), mul_m4_m4m4(), DupliObject::ob, OB_DUPLICOLLECTION, sub_v3_v3(), DupliObject::type, and unit_m4().

Referenced by DRW_shgroup_hair_create_sub(), and blender::draw::hair_sub_pass_setup_implementation().

drw_hair_ensure_vbo()

static void drw_hair_ensure_vbo ( )

static

Definition at line 49 of file draw_hair.cc.

References g_dummy_curves_info, g_dummy_vbo, GPU_COMP_F32, GPU_FETCH_FLOAT, GPU_USAGE_FLAG_BUFFER_TEXTURE_ONLY, GPU_USAGE_STATIC, GPU_vertbuf_attr_fill(), GPU_vertbuf_create_with_format_ex(), GPU_vertbuf_data_alloc(), GPU_vertbuf_use(), and GPU_vertformat_attr_add().

Referenced by DRW_hair_init().

DRW_hair_free()

void DRW_hair_free

(

)

Definition at line 259 of file draw_hair.cc.

References g_dummy_curves_info, g_dummy_vbo, and GPU_VERTBUF_DISCARD_SAFE.

Referenced by blender::draw::DRW_curves_free().

DRW_hair_init()

void DRW_hair_init

(

)

Definition at line 73 of file draw_hair.cc.

References drw_hair_ensure_vbo(), DRW_pass_create(), DRW_STATE_NO_DRAW, and g_tf_pass.

Referenced by blender::draw::DRW_curves_init().

drw_hair_particle_cache_get()

static ParticleHairCache * drw_hair_particle_cache_get ( Object * object, ParticleSystem * psys, ModifierData * md, GPUMaterial * gpu_material, int subdiv, int thickness_res )

static

Definition at line 112 of file draw_hair.cc.

References drw_hair_particle_cache_update_compute(), and update().

Referenced by DRW_hair_pos_buffer_get(), DRW_shgroup_hair_create_sub(), and blender::draw::hair_sub_pass_setup_implementation().

drw_hair_particle_cache_shgrp_attach_resources()

static void drw_hair_particle_cache_shgrp_attach_resources ( DRWShadingGroup * shgrp, ParticleHairCache * cache, const int subdiv )

static

Definition at line 80 of file draw_hair.cc.

References DRW_shgroup_buffer_texture(), DRW_shgroup_uniform_int(), ParticleHairCache::final, ParticleHairCache::proc_point_buf, ParticleHairCache::proc_strand_buf, ParticleHairCache::proc_strand_seg_buf, and ParticleHairFinalCache::strands_res.

Referenced by drw_hair_particle_cache_update_compute().

drw_hair_particle_cache_update_compute()

static void drw_hair_particle_cache_update_compute ( ParticleHairCache * cache, const int subdiv )

static

Definition at line 90 of file draw_hair.cc.

References drw_hair_particle_cache_shgrp_attach_resources(), DRW_shader_hair_refine_get(), DRW_shgroup_call_compute(), DRW_shgroup_create(), DRW_shgroup_create_sub(), DRW_shgroup_uniform_int_copy(), DRW_shgroup_vertex_buffer, ParticleHairCache::final, g_tf_pass, GPU_max_work_group_count(), PART_REFINE_CATMULL_ROM, ParticleHairFinalCache::proc_buf, ParticleHairCache::strands_len, and ParticleHairFinalCache::strands_res.

Referenced by drw_hair_particle_cache_get().

DRW_hair_pos_buffer_get()

blender::gpu::VertBuf * DRW_hair_pos_buffer_get	(	Object *	object,
		ParticleSystem *	psys,
		ModifierData *	md )

Note

Only valid after DRW_hair_update().

Definition at line 130 of file draw_hair.cc.

References DRW_context_state_get(), drw_hair_particle_cache_get(), ParticleHairCache::final, RenderData::hair_subdiv, ParticleHairFinalCache::proc_buf, Scene::r, SCE_HAIR_SHAPE_STRAND, and DRWContextState::scene.

Referenced by blender::eevee::VelocityModule::step_object_sync().

DRW_hair_update()

void DRW_hair_update

(

)

Definition at line 252 of file draw_hair.cc.

References DRW_draw_pass(), g_tf_pass, GPU_BARRIER_SHADER_STORAGE, and GPU_memory_barrier().

Referenced by blender::draw::DRW_curves_update().

DRW_shgroup_hair_create_sub()

DRWShadingGroup * DRW_shgroup_hair_create_sub	(	Object *	object,
		ParticleSystem *	psys,
		ModifierData *	md,
		DRWShadingGroup *	shgrp,
		GPUMaterial *	gpu_material )

This creates a shading group with display hairs. The draw call is already added by this function, just add additional uniforms.

Definition at line 174 of file draw_hair.cc.

References ParticleHairCache::col_layer_names, ParticleHairCache::col_tex, DRW_context_state_get(), DRW_hair_duplimat_get(), drw_hair_particle_cache_get(), DRW_shgroup_add_material_resources(), DRW_shgroup_buffer_texture(), DRW_shgroup_call_no_cull, DRW_shgroup_create_sub(), DRW_shgroup_uniform_block, DRW_shgroup_uniform_bool_copy(), DRW_shgroup_uniform_float_copy(), DRW_shgroup_uniform_int(), DRW_shgroup_uniform_int_copy(), DRW_shgroup_uniform_mat4_copy(), DRW_shgroup_uniform_texture(), ParticleHairCache::final, g_dummy_curves_info, g_dummy_vbo, RenderData::hair_subdiv, MAX_LAYER_NAME_CT, ParticleHairCache::num_col_layers, ParticleHairCache::num_uv_layers, ParticleSystem::part, PART_SHAPE_CLOSE_TIP, ParticleHairFinalCache::proc_buf, ParticleHairFinalCache::proc_hairs, ParticleHairCache::proc_length_buf, Scene::r, SCE_HAIR_SHAPE_STRAND, DRWContextState::scene, ParticleSettings::shape, ParticleHairFinalCache::strands_res, ParticleHairCache::uv_layer_names, and ParticleHairCache::uv_tex.

Variable Documentation

g_dummy_curves_info

blender::draw::UniformBuffer<CurvesInfos>* g_dummy_curves_info = nullptr

static

Definition at line 47 of file draw_hair.cc.

Referenced by drw_hair_ensure_vbo(), DRW_hair_free(), DRW_shgroup_hair_create_sub(), and blender::draw::hair_sub_pass_setup_implementation().

g_dummy_vbo

blender::gpu::VertBuf* g_dummy_vbo = nullptr

static

Definition at line 45 of file draw_hair.cc.

Referenced by drw_hair_ensure_vbo(), DRW_hair_free(), and DRW_shgroup_hair_create_sub().

g_tf_pass

DRWPass* g_tf_pass

static

Definition at line 46 of file draw_hair.cc.

Referenced by DRW_hair_init(), drw_hair_particle_cache_update_compute(), and DRW_hair_update().