Commit 9c62b6faaeb4236440258200f7235e1224a774ff - DiligentFX

C API for GLTF_PBR_Renderer s-ol 2 years ago

5 changed file(s) with 667 addition(s) and 420 deletion(s). Raw diff Collapse all Expand all

-3

GLTF_PBR_Renderer/CMakeLists.txt less more

1	1
2	2	set(SOURCE
3	3	"${CMAKE_CURRENT_SOURCE_DIR}/src/GLTF_PBR_Renderer.cpp"
	4	)
	5
	6	set(INTERFACE
	7	"${CMAKE_CURRENT_SOURCE_DIR}/interface/GLTF_PBR_Renderer.h"
4	8	)
5	9
6	10	set(INCLUDE
7		"${CMAKE_CURRENT_SOURCE_DIR}/interface/GLTF_PBR_Renderer.hpp"
	11	"${CMAKE_CURRENT_SOURCE_DIR}/include/GLTF_PBR_Renderer.hpp"
8	12	)
9	13
10		target_sources(DiligentFX PRIVATE ${SOURCE} ${INCLUDE})
	14	target_sources(DiligentFX PRIVATE ${SOURCE} ${INCLUDE} ${INTERFACE})
11	15
12	16	target_include_directories(DiligentFX
13	17	PUBLIC
14		"${CMAKE_CURRENT_SOURCE_DIR}/interface"
	18	interface
	19	PRIVATE
	20	include
15	21	)

+266

-0

GLTF_PBR_Renderer/include/GLTF_PBR_Renderer.hpp less more

	0	/*
	1	* Copyright 2019-2021 Diligent Graphics LLC
	2	* Copyright 2015-2019 Egor Yusov
	3	*
	4	* Licensed under the Apache License, Version 2.0 (the "License");
	5	* you may not use this file except in compliance with the License.
	6	* You may obtain a copy of the License at
	7	*
	8	* http://www.apache.org/licenses/LICENSE-2.0
	9	*
	10	* Unless required by applicable law or agreed to in writing, software
	11	* distributed under the License is distributed on an "AS IS" BASIS,
	12	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	13	* See the License for the specific language governing permissions and
	14	* limitations under the License.
	15	*
	16	* In no event and under no legal theory, whether in tort (including negligence),
	17	* contract, or otherwise, unless required by applicable law (such as deliberate
	18	* and grossly negligent acts) or agreed to in writing, shall any Contributor be
	19	* liable for any damages, including any direct, indirect, special, incidental,
	20	* or consequential damages of any character arising as a result of this License or
	21	* out of the use or inability to use the software (including but not limited to damages
	22	* for loss of goodwill, work stoppage, computer failure or malfunction, or any and
	23	* all other commercial damages or losses), even if such Contributor has been advised
	24	* of the possibility of such damages.
	25	*/
	26
	27	#pragma once
	28
	29	#include <unordered_map>
	30	#include <functional>
	31	#include <mutex>
	32	#include <vector>
	33
	34	#include "../../../DiligentCore/Graphics/GraphicsEngine/interface/DeviceContext.h"
	35	#include "../../../DiligentCore/Graphics/GraphicsEngine/interface/RenderDevice.h"
	36	#include "../../../DiligentCore/Common/interface/HashUtils.hpp"
	37	#include "../../../DiligentTools/AssetLoader/include/GLTFLoader.hpp"
	38	#include "../interface/GLTF_PBR_Renderer.h"
	39
	40	namespace Diligent
	41	{
	42
	43	/// GLTF Model shader resource binding information
	44	struct GLTF_ModelResourceBindings
	45	{
	46	void Clear()
	47	{
	48	MaterialSRB.clear();
	49	}
	50
	51	GLTF_ModelResourceBindings() : MaterialSRB{} {}
	52	GLTF_ModelResourceBindings(const GLTF_ModelResourceBindings& o) : MaterialSRB{o.MaterialSRB} {};
	53	~GLTF_ModelResourceBindings() { MaterialSRB.~vector(); }
	54
	55	union {
	56	/// Shader resource binding for every material
	57	std::vector<RefCntAutoPtr<IShaderResourceBinding>> MaterialSRB;
	58
	59	Uint32 _spacer[8];
	60	};
	61	};
	62
	63	/// GLTF resource cache shader resource binding information
	64	struct GLTF_ResourceCacheBindings
	65	{
	66	/// Resource version
	67	Uint32 Version = 0;
	68
	69	RefCntAutoPtr<IShaderResourceBinding> pSRB;
	70	};
	71
	72	#include "Shaders/GLTF_PBR/public/GLTF_PBR_Structures.fxh"
	73
	74	/// Implementation of a GLTF PBR renderer
	75	class GLTF_PBR_Renderer : public IGLTF_PBR_Renderer
	76	{
	77	public:
	78
	79	/// Initializes the renderer
	80	GLTF_PBR_Renderer(IRenderDevice* pDevice,
	81	IDeviceContext* pCtx,
	82	const GLTF_RendererCreateInfo& CI);
	83
	84	/// Rendering information
	85
	86
	87	/// Renders a GLTF model.
	88
	89	/// \param [in] pCtx - Device context to record rendering commands to.
	90	/// \param [in] GLTFModel - GLTF model to render.
	91	/// \param [in] RenderParams - Render parameters.
	92	/// \param [in] pModelBindings - The model's shader resource binding information.
	93	/// \param [in] pCacheBindings - Shader resource cache binding information, if the
	94	/// model has been created using the cache.
	95	virtual void Render(IDeviceContext* pCtx,
	96	IGLTFModel* GLTFModel,
	97	const GLTF_RenderInfo& RenderParams,
	98	GLTF_ModelResourceBindings* pModelBindings,
	99	GLTF_ResourceCacheBindings* pCacheBindings = nullptr) override final;
	100
	101	/// Creates resource bindings for a given GLTF model
	102	virtual GLTF_ModelResourceBindings CreateResourceBindings(IGLTFModel* GLTFModel,
	103	IBuffer* pCameraAttribs,
	104	IBuffer* pLightAttribs) override final;
	105
	106	/// Precompute cubemaps used by IBL.
	107	virtual void PrecomputeCubemaps(IRenderDevice* pDevice,
	108	IDeviceContext* pCtx,
	109	ITextureView* pEnvironmentMap) override final;
	110
	111	// clang-format off
	112	virtual ITextureView* GetIrradianceCubeSRV() override final { return m_pIrradianceCubeSRV; }
	113	virtual ITextureView* GetPrefilteredEnvMapSRV() override final { return m_pPrefilteredEnvMapSRV; }
	114	virtual ITextureView* GetWhiteTexSRV() override final { return m_pWhiteTexSRV; }
	115	virtual ITextureView* GetBlackTexSRV() override final { return m_pBlackTexSRV; }
	116	virtual ITextureView* GetDefaultNormalMapSRV() override final { return m_pDefaultNormalMapSRV; }
	117	// clang-format on
	118
	119	/// Creates a shader resource binding for the given material.
	120
	121	/// \param [in] Model - GLTF model that keeps material textures.
	122	/// \param [in] Material - GLTF material to create SRB for.
	123	/// \param [in] pCameraAttribs - Camera attributes constant buffer to set in the SRB.
	124	/// \param [in] pLightAttribs - Light attributes constant buffer to set in the SRB.
	125	/// \param [in] pPSO - Optional PSO object to use to create the SRB instead of the
	126	/// default PSO. Can be null
	127	/// \param [out] ppMaterialSRB - Pointer to memory location where the pointer to the SRB object
	128	/// will be written.
	129	virtual void CreateMaterialSRB(IGLTFModel* Model,
	130	GLTF::Material& Material,
	131	IBuffer* pCameraAttribs,
	132	IBuffer* pLightAttribs,
	133	IPipelineState* pPSO,
	134	IShaderResourceBinding** ppMaterialSRB); // override final;
	135
	136
	137	/// Creates a shader resource binding for a GTLF resource cache.
	138
	139	/// \param [in] pDevice - Render device that may be needed by the resource cache to create
	140	/// internal objects.
	141	/// \param [in] pCtx - Device context that may be needed by the resource cache to initialize
	142	/// internal objects.
	143	/// \param [in] CacheUseInfo - GLTF resource cache usage information.
	144	/// \param [in] pCameraAttribs - Camera attributes constant buffer to set in the SRB.
	145	/// \param [in] pLightAttribs - Light attributes constant buffer to set in the SRB.
	146	/// \param [in] pPSO - Optional PSO object to use to create the SRB instead of the
	147	/// default PSO. Can be null
	148	/// \param [out] ppCacheSRB - Pointer to memory location where the pointer to the SRB object
	149	/// will be written.
	150	virtual void CreateResourceCacheSRB(IRenderDevice* pDevice,
	151	IDeviceContext* pCtx,
	152	GLTF_ResourceCacheUseInfo& CacheUseInfo,
	153	IBuffer* pCameraAttribs,
	154	IBuffer* pLightAttribs,
	155	IPipelineState* pPSO,
	156	IShaderResourceBinding** ppCacheSRB) override final;
	157
	158	/// Prepares the renderer for rendering objects.
	159	/// This method must be called at least once per frame.
	160	virtual void Begin(IDeviceContext* pCtx) override final;
	161
	162
	163	/// Prepares the renderer for rendering objects from the resource cache.
	164	/// This method must be called at least once per frame before the first object
	165	/// from the cache is rendered.
	166	virtual void BeginPSO(IRenderDevice* pDevice,
	167	IDeviceContext* pCtx,
	168	GLTF_ResourceCacheUseInfo& CacheUseInfo,
	169	GLTF_ResourceCacheBindings& Bindings,
	170	IBuffer* pCameraAttribs,
	171	IBuffer* pLightAttribs,
	172	IPipelineState* pPSO = nullptr) override final;
	173
	174	private:
	175	void PrecomputeBRDF(IRenderDevice* pDevice,
	176	IDeviceContext* pCtx);
	177
	178	void CreatePSO(IRenderDevice* pDevice);
	179
	180	void InitCommonSRBVars(IShaderResourceBinding* pSRB,
	181	IBuffer* pCameraAttribs,
	182	IBuffer* pLightAttribs);
	183
	184	struct PSOKey
	185	{
	186	PSOKey() noexcept {};
	187	PSOKey(GLTF_MAT_ALPHA_MODE _AlphaMode, bool _DoubleSided) :
	188	AlphaMode{_AlphaMode},
	189	DoubleSided{_DoubleSided}
	190	{}
	191
	192	bool operator==(const PSOKey& rhs) const
	193	{
	194	return AlphaMode == rhs.AlphaMode && DoubleSided == rhs.DoubleSided;
	195	}
	196	bool operator!=(const PSOKey& rhs) const
	197	{
	198	return AlphaMode != rhs.AlphaMode \|\| DoubleSided != rhs.DoubleSided;
	199	}
	200
	201	GLTF_MAT_ALPHA_MODE AlphaMode = GLTF_MAT_ALPHA_MODE_OPAQUE;
	202	bool DoubleSided = false;
	203	};
	204
	205	static size_t GetPSOIdx(const PSOKey& Key)
	206	{
	207	size_t PSOIdx;
	208
	209	PSOIdx = Key.AlphaMode == GLTF_MAT_ALPHA_MODE_BLEND ? 1 : 0;
	210	PSOIdx = PSOIdx * 2 + (Key.DoubleSided ? 1 : 0);
	211	return PSOIdx;
	212	}
	213
	214	void AddPSO(const PSOKey& Key, RefCntAutoPtr<IPipelineState> pPSO)
	215	{
	216	auto Idx = GetPSOIdx(Key);
	217	if (Idx >= m_PSOCache.size())
	218	m_PSOCache.resize(Idx + 1);
	219	VERIFY_EXPR(!m_PSOCache[Idx]);
	220	m_PSOCache[Idx] = std::move(pPSO);
	221	}
	222
	223	IPipelineState* GetPSO(const PSOKey& Key)
	224	{
	225	auto Idx = GetPSOIdx(Key);
	226	VERIFY_EXPR(Idx < m_PSOCache.size());
	227	return Idx < m_PSOCache.size() ? m_PSOCache[Idx].RawPtr() : nullptr;
	228	}
	229
	230	const GLTF_RendererCreateInfo m_Settings;
	231
	232	static constexpr Uint32 BRDF_LUT_Dim = 512;
	233	RefCntAutoPtr<ITextureView> m_pBRDF_LUT_SRV;
	234
	235	std::vector<RefCntAutoPtr<IPipelineState>> m_PSOCache;
	236
	237	RefCntAutoPtr<ITextureView> m_pWhiteTexSRV;
	238	RefCntAutoPtr<ITextureView> m_pBlackTexSRV;
	239	RefCntAutoPtr<ITextureView> m_pDefaultNormalMapSRV;
	240	RefCntAutoPtr<ITextureView> m_pDefaultPhysDescSRV;
	241
	242
	243	static constexpr TEXTURE_FORMAT IrradianceCubeFmt = TEX_FORMAT_RGBA32_FLOAT;
	244	static constexpr TEXTURE_FORMAT PrefilteredEnvMapFmt = TEX_FORMAT_RGBA16_FLOAT;
	245	static constexpr Uint32 IrradianceCubeDim = 64;
	246	static constexpr Uint32 PrefilteredEnvMapDim = 256;
	247
	248	RefCntAutoPtr<ITextureView> m_pIrradianceCubeSRV;
	249	RefCntAutoPtr<ITextureView> m_pPrefilteredEnvMapSRV;
	250	RefCntAutoPtr<IPipelineState> m_pPrecomputeIrradianceCubePSO;
	251	RefCntAutoPtr<IPipelineState> m_pPrefilterEnvMapPSO;
	252	RefCntAutoPtr<IShaderResourceBinding> m_pPrecomputeIrradianceCubeSRB;
	253	RefCntAutoPtr<IShaderResourceBinding> m_pPrefilterEnvMapSRB;
	254
	255	GLTF_RenderInfo m_RenderParams;
	256
	257	RefCntAutoPtr<IBuffer> m_TransformsCB;
	258	RefCntAutoPtr<IBuffer> m_GLTFAttribsCB;
	259	RefCntAutoPtr<IBuffer> m_PrecomputeEnvMapAttribsCB;
	260	RefCntAutoPtr<IBuffer> m_JointsBuffer;
	261	};
	262
	263	DEFINE_FLAG_ENUM_OPERATORS(ALPHA_MODE_FLAGS)
	264
	265	} // namespace Diligent

+328

-0

GLTF_PBR_Renderer/interface/GLTF_PBR_Renderer.h less more

	0	/*
	1	* Copyright 2019-2021 Diligent Graphics LLC
	2	* Copyright 2015-2019 Egor Yusov
	3	*
	4	* Licensed under the Apache License, Version 2.0 (the "License");
	5	* you may not use this file except in compliance with the License.
	6	* You may obtain a copy of the License at
	7	*
	8	* http://www.apache.org/licenses/LICENSE-2.0
	9	*
	10	* Unless required by applicable law or agreed to in writing, software
	11	* distributed under the License is distributed on an "AS IS" BASIS,
	12	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	13	* See the License for the specific language governing permissions and
	14	* limitations under the License.
	15	*
	16	* In no event and under no legal theory, whether in tort (including negligence),
	17	* contract, or otherwise, unless required by applicable law (such as deliberate
	18	* and grossly negligent acts) or agreed to in writing, shall any Contributor be
	19	* liable for any damages, including any direct, indirect, special, incidental,
	20	* or consequential damages of any character arising as a result of this License or
	21	* out of the use or inability to use the software (including but not limited to damages
	22	* for loss of goodwill, work stoppage, computer failure or malfunction, or any and
	23	* all other commercial damages or losses), even if such Contributor has been advised
	24	* of the possibility of such damages.
	25	*/
	26
	27	#pragma once
	28
	29	#include "../../../DiligentCore/Graphics/GraphicsEngine/interface/DeviceContext.h"
	30	#include "../../../DiligentCore/Graphics/GraphicsEngine/interface/RenderDevice.h"
	31	#include "../../../DiligentTools/AssetLoader/interface/GLTFLoader.h"
	32
	33	DILIGENT_BEGIN_NAMESPACE(Diligent)
	34
	35	#if DILIGENT_CPP_INTERFACE
	36	using namespace Diligent::GLTF;
	37	#endif
	38
	39	/// Renderer create info
	40	struct GLTF_RendererCreateInfo
	41	{
	42	/// Render target format.
	43	TEXTURE_FORMAT RTVFmt DEFAULT_INITIALIZER(TEX_FORMAT_UNKNOWN);
	44
	45	/// Depth-buffer format.
	46
	47	/// \note If both RTV and DSV formats are TEX_FORMAT_UNKNOWN,
	48	/// the renderer will not initialize PSO, uniform buffers and other
	49	/// resources. It is expected that an application will use custom
	50	/// render callback function.
	51	TEXTURE_FORMAT DSVFmt DEFAULT_INITIALIZER(TEX_FORMAT_UNKNOWN);
	52
	53	/// Indicates if front face is CCW.
	54	bool FrontCCW DEFAULT_INITIALIZER(false);
	55
	56	/// Indicates if the renderer should allow debug views.
	57	/// Rendering with debug views disabled is more efficient.
	58	bool AllowDebugView DEFAULT_INITIALIZER(false);
	59
	60	/// Indicates whether to use IBL.
	61	bool UseIBL DEFAULT_INITIALIZER(false);
	62
	63	/// Whether to use ambient occlusion texture.
	64	bool UseAO DEFAULT_INITIALIZER(true);
	65
	66	/// Whether to use emissive texture.
	67	bool UseEmissive DEFAULT_INITIALIZER(true);
	68
	69	/// When set to true, pipeline state will be compiled with immutable samplers.
	70	/// When set to false, samplers from the texture views will be used.
	71	bool UseImmutableSamplers DEFAULT_INITIALIZER(true);
	72
	73	/// Whether to use texture atlas (e.g. apply UV transforms when sampling textures).
	74	bool UseTextureAtals DEFAULT_INITIALIZER(false);
	75
	76	#if DILIGENT_CPP_INTERFACE
	77	static const SamplerDesc DefaultSampler;
	78	#endif
	79
	80	/// Immutable sampler for color map texture.
	81	SamplerDesc ColorMapImmutableSampler DEFAULT_INITIALIZER(DefaultSampler);
	82
	83	/// Immutable sampler for physical description map texture.
	84	SamplerDesc PhysDescMapImmutableSampler DEFAULT_INITIALIZER(DefaultSampler);
	85
	86	/// Immutable sampler for normal map texture.
	87	SamplerDesc NormalMapImmutableSampler DEFAULT_INITIALIZER(DefaultSampler);
	88
	89	/// Immutable sampler for AO texture.
	90	SamplerDesc AOMapImmutableSampler DEFAULT_INITIALIZER(DefaultSampler);
	91
	92	/// Immutable sampler for emissive map texture.
	93	SamplerDesc EmissiveMapImmutableSampler DEFAULT_INITIALIZER(DefaultSampler);
	94
	95	/// Maximum number of joints
	96	Uint32 MaxJointCount DEFAULT_INITIALIZER(64);
	97
	98	// Geometry Shader
	99	IShader* pGS DEFAULT_INITIALIZER(nullptr);
	100	};
	101	typedef struct GLTF_RendererCreateInfo GLTF_RendererCreateInfo;
	102
	103	/// Alpha mode flags
	104	DILIGENT_TYPED_ENUM(ALPHA_MODE_FLAGS, Uint32)
	105	{
	106	/// Render nothing
	107	ALPHA_MODE_FLAG_NONE = 0,
	108
	109	/// Render opaque matetrials
	110	ALPHA_MODE_FLAG_OPAQUE = 1 << GLTF_MAT_ALPHA_MODE_OPAQUE,
	111
	112	/// Render alpha-masked matetrials
	113	ALPHA_MODE_FLAG_MASK = 1 << GLTF_MAT_ALPHA_MODE_MASK,
	114
	115	/// Render alpha-blended matetrials
	116	ALPHA_MODE_FLAG_BLEND = 1 << GLTF_MAT_ALPHA_MODE_BLEND,
	117
	118	/// Render all materials
	119	ALPHA_MODE_FLAG_ALL = ALPHA_MODE_FLAG_OPAQUE \| ALPHA_MODE_FLAG_MASK \| ALPHA_MODE_FLAG_BLEND
	120	};
	121
	122	/// Debug view type
	123	DILIGENT_TYPED_ENUM(DEBUG_VIEW_TYPE, int)
	124	{
	125	DEBUG_VIEW_TYPE_NONE = 0,
	126	DEBUG_VIEW_TYPE_BASE_COLOR = 1,
	127	DEBUG_VIEW_TYPE_TRANSPARENCY = 2,
	128	DEBUG_VIEW_TYPE_NORMAL_MAP = 3,
	129	DEBUG_VIEW_TYPE_OCCLUSION = 4,
	130	DEBUG_VIEW_TYPE_EMISSIVE = 5,
	131	DEBUG_VIEW_TYPE_METALLIC = 6,
	132	DEBUG_VIEW_TYPE_ROUGHNESS = 7,
	133	DEBUG_VIEW_TYPE_DIFFUSE_COLOR = 8,
	134	DEBUG_VIEW_TYPE_SPECULAR_COLOR = 9,
	135	DEBUG_VIEW_TYPE_REFLECTANCE_90 = 10,
	136	DEBUG_VIEW_TYPE_MESH_NORMAL = 11,
	137	DEBUG_VIEW_TYPE_PERTURBED_NORMAL = 12,
	138	DEBUG_VIEW_TYPE_N_DOT_V = 13,
	139	DEBUG_VIEW_TYPE_DIFFUSE_IBL = 14,
	140	DEBUG_VIEW_TYPE_SPECULAR_IBL = 15,
	141	DEBUG_VIEW_TYPE_NUM,
	142	};
	143
	144	/// Rendering information
	145	struct GLTF_RenderInfo
	146	{
	147	/// Model transform matrix
	148	float ModelTransform[16]
	149	#if DILIGENT_CPP_INTERFACE
	150	= { 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1 }
	151	#endif
	152	;
	153
	154	/// Flag indicating which alpha modes to render
	155	ALPHA_MODE_FLAGS AlphaModes DEFAULT_INITIALIZER(ALPHA_MODE_FLAG_ALL);
	156
	157	DEBUG_VIEW_TYPE DebugView DEFAULT_INITIALIZER(DEBUG_VIEW_TYPE_NONE);
	158
	159	/// Ambient occlusion strength
	160	float OcclusionStrength DEFAULT_INITIALIZER(1);
	161
	162	/// Emission scale
	163	float EmissionScale DEFAULT_INITIALIZER(1);
	164
	165	/// IBL scale
	166	float IBLScale DEFAULT_INITIALIZER(1);
	167
	168	/// Average log luminance used by tone mapping
	169	float AverageLogLum DEFAULT_INITIALIZER(0.3f);
	170
	171	/// Middle gray value used by tone mapping
	172	float MiddleGray DEFAULT_INITIALIZER(0.18f);
	173
	174	/// White point value used by tone mapping
	175	float WhitePoint DEFAULT_INITIALIZER(3.f);
	176	};
	177	typedef struct GLTF_RenderInfo GLTF_RenderInfo;
	178
	179	struct GLTF_ModelResourceBindings;
	180	typedef struct GLTF_ModelResourceBindings GLTF_ModelResourceBindings;
	181
	182	#if DILIGENT_C_INTERFACE
	183	struct GLTF_ModelResourceBindings {
	184	Uint32 _spacer[8];
	185	};
	186	#endif
	187
	188	struct GLTF_ResourceCacheBindings;
	189	typedef struct GLTF_ResourceCacheBindings GLTF_ResourceCacheBindings;
	190
	191	#define DILIGENT_INTERFACE_NAME IGLTF_PBR_Renderer
	192	#include "../../../Primitives/interface/DefineInterfaceHelperMacros.h"
	193
	194	#define IGLTF_PBR_RendererInclusiveMethods \
	195	IGLTF_PBR_RendererMethods GLTF_PBR_Renderer
	196
	197	// clang-format off
	198
	199	/// Implementation of a GLTF PBR renderer
	200	DILIGENT_BEGIN_INTERFACE1(IGLTF_PBR_Renderer)
	201	{
	202	/// Renders a GLTF model.
	203
	204	/// \param [in] pCtx - Device context to record rendering commands to.
	205	/// \param [in] GLTFModel - GLTF model to render.
	206	/// \param [in] RenderParams - Render parameters.
	207	/// \param [in] pModelBindings - The model's shader resource binding information.
	208	/// \param [in] pCacheBindings - Shader resource cache binding information, if the
	209	/// model has been created using the cache.
	210	VIRTUAL void METHOD(Render)(THIS_
	211	IDeviceContext* pCtx,
	212	IGLTFModel* GLTFModel,
	213	const GLTF_RenderInfo REF RenderParams,
	214	GLTF_ModelResourceBindings* pModelBindings,
	215	GLTF_ResourceCacheBindings* pCacheBindings) PURE;
	216
	217	/// Creates resource bindings for a given GLTF model
	218	VIRTUAL GLTF_ModelResourceBindings METHOD(CreateResourceBindings)(THIS_
	219	IGLTFModel* GLTFModel,
	220	IBuffer* pCameraAttribs,
	221	IBuffer* pLightAttribs) PURE;
	222
	223	/// Precompute cubemaps used by IBL.
	224	VIRTUAL void METHOD(PrecomputeCubemaps)(THIS_
	225	IRenderDevice* pDevice,
	226	IDeviceContext* pCtx,
	227	ITextureView* pEnvironmentMap) PURE;
	228
	229	// clang-format off
	230	VIRTUAL ITextureView* METHOD(GetIrradianceCubeSRV)(THIS) PURE;
	231	VIRTUAL ITextureView* METHOD(GetPrefilteredEnvMapSRV)(THIS) PURE;
	232	VIRTUAL ITextureView* METHOD(GetWhiteTexSRV)(THIS) PURE;
	233	VIRTUAL ITextureView* METHOD(GetBlackTexSRV)(THIS) PURE;
	234	VIRTUAL ITextureView* METHOD(GetDefaultNormalMapSRV)(THIS) PURE;
	235	// clang-format on
	236
	237	/*
	238	/// Creates a shader resource binding for the given material.
	239
	240	/// \param [in] Model - GLTF model that keeps material textures.
	241	/// \param [in] Material - GLTF material to create SRB for.
	242	/// \param [in] pCameraAttribs - Camera attributes constant buffer to set in the SRB.
	243	/// \param [in] pLightAttribs - Light attributes constant buffer to set in the SRB.
	244	/// \param [in] pPSO - Optional PSO object to use to create the SRB instead of the
	245	/// default PSO. Can be null
	246	/// \param [out] ppMaterialSRB - Pointer to memory location where the pointer to the SRB object
	247	/// will be written.
	248	VIRTUAL void METHOD(CreateMaterialSRB)(THIS_
	249	IGLTFModel* Model,
	250	GLTF_Material REF Material,
	251	IBuffer* pCameraAttribs,
	252	IBuffer* pLightAttribs,
	253	IPipelineState* pPSO,
	254	IShaderResourceBinding** ppMaterialSRB) PURE;
	255	*/
	256
	257
	258	/// Creates a shader resource binding for a GTLF resource cache.
	259
	260	/// \param [in] pDevice - Render device that may be needed by the resource cache to create
	261	/// internal objects.
	262	/// \param [in] pCtx - Device context that may be needed by the resource cache to initialize
	263	/// internal objects.
	264	/// \param [in] CacheUseInfo - GLTF resource cache usage information.
	265	/// \param [in] pCameraAttribs - Camera attributes constant buffer to set in the SRB.
	266	/// \param [in] pLightAttribs - Light attributes constant buffer to set in the SRB.
	267	/// \param [in] pPSO - Optional PSO object to use to create the SRB instead of the
	268	/// default PSO. Can be null
	269	/// \param [out] ppCacheSRB - Pointer to memory location where the pointer to the SRB object
	270	/// will be written.
	271	VIRTUAL void METHOD(CreateResourceCacheSRB)(THIS_
	272	IRenderDevice* pDevice,
	273	IDeviceContext* pCtx,
	274	GLTF_ResourceCacheUseInfo REF CacheUseInfo,
	275	IBuffer* pCameraAttribs,
	276	IBuffer* pLightAttribs,
	277	IPipelineState* pPSO,
	278	IShaderResourceBinding** ppCacheSRB) PURE;
	279
	280	/// Prepares the renderer for rendering objects.
	281	/// This method must be called at least once per frame.
	282	VIRTUAL void METHOD(Begin)(THIS_
	283	IDeviceContext* pCtx) PURE;
	284
	285
	286	/// Prepares the renderer for rendering objects from the resource cache.
	287	/// This method must be called at least once per frame before the first object
	288	/// from the cache is rendered.
	289	VIRTUAL void METHOD(BeginPSO)(THIS_
	290	IRenderDevice* pDevice,
	291	IDeviceContext* pCtx,
	292	GLTF_ResourceCacheUseInfo REF CacheUseInfo,
	293	GLTF_ResourceCacheBindings REF Bindings,
	294	IBuffer* pCameraAttribs,
	295	IBuffer* pLightAttribs,
	296	IPipelineState* pPSO) PURE;
	297	};
	298	DILIGENT_END_INTERFACE
	299
	300	#include "../../../Primitives/interface/UndefInterfaceHelperMacros.h"
	301
	302	#if DILIGENT_C_INTERFACE
	303
	304	# define IGLTF_PBR_Renderer_Render(This, ...) CALL_IFACE_METHOD(GLTF_PBR_Renderer, Render, This, __VA_ARGS__)
	305	# define IGLTF_PBR_Renderer_CreateResourceBindings(This, ...) CALL_IFACE_METHOD(GLTF_PBR_Renderer, CreateResourceBindings, This, __VA_ARGS__)
	306	# define IGLTF_PBR_Renderer_PrecomputeCubemaps(This, ...) CALL_IFACE_METHOD(GLTF_PBR_Renderer, PrecomputeCubemaps, This, __VA_ARGS__)
	307	# define IGLTF_PBR_Renderer_GetIrradianceCubeSRV(This) CALL_IFACE_METHOD(GLTF_PBR_Renderer, GetIrradianceCubeSRV, This)
	308	# define IGLTF_PBR_Renderer_GetPrefilteredEnvMapSRV(This) CALL_IFACE_METHOD(GLTF_PBR_Renderer, GetPrefilteredEnvMapSRV, This)
	309	# define IGLTF_PBR_Renderer_GetWhiteTexSRV(This) CALL_IFACE_METHOD(GLTF_PBR_Renderer, GetWhiteTexSRV, This)
	310	# define IGLTF_PBR_Renderer_GetBlackTexSRV(This) CALL_IFACE_METHOD(GLTF_PBR_Renderer, GetBlackTexSRV, This)
	311	# define IGLTF_PBR_Renderer_GetDefaultNormalMapSRV(This) CALL_IFACE_METHOD(GLTF_PBR_Renderer, GetDefaultNormalMapSRV, This)
	312	# define IGLTF_PBR_Renderer_CreateMaterialSRB(This, ...) CALL_IFACE_METHOD(GLTF_PBR_Renderer, CreateMaterialSRB, This, __VA_ARGS__)
	313	# define IGLTF_PBR_Renderer_CreateResourceCacheSRB(This, ...) CALL_IFACE_METHOD(GLTF_PBR_Renderer, CreateResourceCacheSRB, This, __VA_ARGS__)
	314	# define IGLTF_PBR_Renderer_Begin(This, ...) CALL_IFACE_METHOD(GLTF_PBR_Renderer, Begin, This, __VA_ARGS__)
	315	# define IGLTF_PBR_Renderer_BeginPSO(This, ...) CALL_IFACE_METHOD(GLTF_PBR_Renderer, BeginPSO, This, __VA_ARGS__)
	316
	317	#endif
	318
	319	// clang-format on
	320
	321	/// Initializes the renderer
	322	API_QUALIFIER
	323	struct IGLTF_PBR_Renderer* DILIGENT_GLOBAL_FUNCTION(IGLTF_PBR_Renderer_Create)(IRenderDevice* pDevice,
	324	IDeviceContext* pCtx,
	325	const GLTF_RendererCreateInfo* CI);
	326
	327	DILIGENT_END_NAMESPACE // namespace Diligent

-379

~~GLTF_PBR_Renderer/interface/GLTF_PBR_Renderer.hpp~~ less more

0		/*
1		* Copyright 2019-2021 Diligent Graphics LLC
2		* Copyright 2015-2019 Egor Yusov
3		*
4		* Licensed under the Apache License, Version 2.0 (the "License");
5		* you may not use this file except in compliance with the License.
6		* You may obtain a copy of the License at
7		*
8		* http://www.apache.org/licenses/LICENSE-2.0
9		*
10		* Unless required by applicable law or agreed to in writing, software
11		* distributed under the License is distributed on an "AS IS" BASIS,
12		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13		* See the License for the specific language governing permissions and
14		* limitations under the License.
15		*
16		* In no event and under no legal theory, whether in tort (including negligence),
17		* contract, or otherwise, unless required by applicable law (such as deliberate
18		* and grossly negligent acts) or agreed to in writing, shall any Contributor be
19		* liable for any damages, including any direct, indirect, special, incidental,
20		* or consequential damages of any character arising as a result of this License or
21		* out of the use or inability to use the software (including but not limited to damages
22		* for loss of goodwill, work stoppage, computer failure or malfunction, or any and
23		* all other commercial damages or losses), even if such Contributor has been advised
24		* of the possibility of such damages.
25		*/
26
27		#pragma once
28
29		#include <unordered_map>
30		#include <functional>
31		#include <mutex>
32		#include <vector>
33
34		#include "../../../DiligentCore/Graphics/GraphicsEngine/interface/DeviceContext.h"
35		#include "../../../DiligentCore/Graphics/GraphicsEngine/interface/RenderDevice.h"
36		#include "../../../DiligentCore/Common/interface/HashUtils.hpp"
37		#include "../../../DiligentTools/AssetLoader/interface/GLTFLoader.hpp"
38
39		namespace Diligent
40		{
41
42		#include "Shaders/GLTF_PBR/public/GLTF_PBR_Structures.fxh"
43
44		/// Implementation of a GLTF PBR renderer
45		class GLTF_PBR_Renderer
46		{
47		public:
48		/// Renderer create info
49		struct CreateInfo
50		{
51		/// Render target format.
52		TEXTURE_FORMAT RTVFmt = TEX_FORMAT_UNKNOWN;
53
54		/// Depth-buffer format.
55
56		/// \note If both RTV and DSV formats are TEX_FORMAT_UNKNOWN,
57		/// the renderer will not initialize PSO, uniform buffers and other
58		/// resources. It is expected that an application will use custom
59		/// render callback function.
60		TEXTURE_FORMAT DSVFmt = TEX_FORMAT_UNKNOWN;
61
62		/// Indicates if front face is CCW.
63		bool FrontCCW = false;
64
65		/// Indicates if the renderer should allow debug views.
66		/// Rendering with debug views disabled is more efficient.
67		bool AllowDebugView = false;
68
69		/// Indicates whether to use IBL.
70		bool UseIBL = false;
71
72		/// Whether to use ambient occlusion texture.
73		bool UseAO = true;
74
75		/// Whether to use emissive texture.
76		bool UseEmissive = true;
77
78		/// When set to true, pipeline state will be compiled with immutable samplers.
79		/// When set to false, samplers from the texture views will be used.
80		bool UseImmutableSamplers = true;
81
82		/// Whether to use texture atlas (e.g. apply UV transforms when sampling textures).
83		bool UseTextureAtals = false;
84
85		static const SamplerDesc DefaultSampler;
86
87		/// Immutable sampler for color map texture.
88		SamplerDesc ColorMapImmutableSampler = DefaultSampler;
89
90		/// Immutable sampler for physical description map texture.
91		SamplerDesc PhysDescMapImmutableSampler = DefaultSampler;
92
93		/// Immutable sampler for normal map texture.
94		SamplerDesc NormalMapImmutableSampler = DefaultSampler;
95
96		/// Immutable sampler for AO texture.
97		SamplerDesc AOMapImmutableSampler = DefaultSampler;
98
99		/// Immutable sampler for emissive map texture.
100		SamplerDesc EmissiveMapImmutableSampler = DefaultSampler;
101
102		/// Maximum number of joints
103		Uint32 MaxJointCount = 64;
104		};
105
106		/// Initializes the renderer
107		GLTF_PBR_Renderer(IRenderDevice* pDevice,
108		IDeviceContext* pCtx,
109		const CreateInfo& CI);
110
111		/// Rendering information
112		struct RenderInfo
113		{
114		/// Model transform matrix
115		float4x4 ModelTransform = float4x4::Identity();
116
117		/// Alpha mode flags
118		enum ALPHA_MODE_FLAGS : Uint32
119		{
120		/// Render nothing
121		ALPHA_MODE_FLAG_NONE = 0,
122
123		/// Render opaque matetrials
124		ALPHA_MODE_FLAG_OPAQUE = 1 << GLTF::Material::ALPHA_MODE_OPAQUE,
125
126		/// Render alpha-masked matetrials
127		ALPHA_MODE_FLAG_MASK = 1 << GLTF::Material::ALPHA_MODE_MASK,
128
129		/// Render alpha-blended matetrials
130		ALPHA_MODE_FLAG_BLEND = 1 << GLTF::Material::ALPHA_MODE_BLEND,
131
132		/// Render all materials
133		ALPHA_MODE_FLAG_ALL = ALPHA_MODE_FLAG_OPAQUE \| ALPHA_MODE_FLAG_MASK \| ALPHA_MODE_FLAG_BLEND
134		};
135		/// Flag indicating which alpha modes to render
136		ALPHA_MODE_FLAGS AlphaModes = ALPHA_MODE_FLAG_ALL;
137
138		/// Debug view type
139		enum class DebugViewType : int
140		{
141		None = 0,
142		BaseColor = 1,
143		Transparency = 2,
144		NormalMap = 3,
145		Occlusion = 4,
146		Emissive = 5,
147		Metallic = 6,
148		Roughness = 7,
149		DiffuseColor = 8,
150		SpecularColor = 9,
151		Reflectance90 = 10,
152		MeshNormal = 11,
153		PerturbedNormal = 12,
154		NdotV = 13,
155		DiffuseIBL = 14,
156		SpecularIBL = 15,
157		NumDebugViews
158		};
159		DebugViewType DebugView = DebugViewType::None;
160
161		/// Ambient occlusion strength
162		float OcclusionStrength = 1;
163
164		/// Emission scale
165		float EmissionScale = 1;
166
167		/// IBL scale
168		float IBLScale = 1;
169
170		/// Average log luminance used by tone mapping
171		float AverageLogLum = 0.3f;
172
173		/// Middle gray value used by tone mapping
174		float MiddleGray = 0.18f;
175
176		/// White point value used by tone mapping
177		float WhitePoint = 3.f;
178		};
179
180		/// GLTF Model shader resource binding information
181		struct ModelResourceBindings
182		{
183		void Clear()
184		{
185		MaterialSRB.clear();
186		}
187		/// Shader resource binding for every material
188		std::vector<RefCntAutoPtr<IShaderResourceBinding>> MaterialSRB;
189		};
190
191		/// GLTF resource cache shader resource binding information
192		struct ResourceCacheBindings
193		{
194		/// Resource version
195		Uint32 Version = 0;
196
197		RefCntAutoPtr<IShaderResourceBinding> pSRB;
198		};
199
200		/// Renders a GLTF model.
201
202		/// \param [in] pCtx - Device context to record rendering commands to.
203		/// \param [in] GLTFModel - GLTF model to render.
204		/// \param [in] RenderParams - Render parameters.
205		/// \param [in] pModelBindings - The model's shader resource binding information.
206		/// \param [in] pCacheBindings - Shader resource cache binding information, if the
207		/// model has been created using the cache.
208		void Render(IDeviceContext* pCtx,
209		GLTF::Model& GLTFModel,
210		const RenderInfo& RenderParams,
211		ModelResourceBindings* pModelBindings,
212		ResourceCacheBindings* pCacheBindings = nullptr);
213
214		/// Creates resource bindings for a given GLTF model
215		ModelResourceBindings CreateResourceBindings(GLTF::Model& GLTFModel,
216		IBuffer* pCameraAttribs,
217		IBuffer* pLightAttribs);
218
219		/// Precompute cubemaps used by IBL.
220		void PrecomputeCubemaps(IRenderDevice* pDevice,
221		IDeviceContext* pCtx,
222		ITextureView* pEnvironmentMap);
223
224		// clang-format off
225		ITextureView* GetIrradianceCubeSRV() { return m_pIrradianceCubeSRV; }
226		ITextureView* GetPrefilteredEnvMapSRV() { return m_pPrefilteredEnvMapSRV; }
227		ITextureView* GetWhiteTexSRV() { return m_pWhiteTexSRV; }
228		ITextureView* GetBlackTexSRV() { return m_pBlackTexSRV; }
229		ITextureView* GetDefaultNormalMapSRV() { return m_pDefaultNormalMapSRV; }
230		// clang-format on
231
232		/// Creates a shader resource binding for the given material.
233
234		/// \param [in] Model - GLTF model that keeps material textures.
235		/// \param [in] Material - GLTF material to create SRB for.
236		/// \param [in] pCameraAttribs - Camera attributes constant buffer to set in the SRB.
237		/// \param [in] pLightAttribs - Light attributes constant buffer to set in the SRB.
238		/// \param [in] pPSO - Optional PSO object to use to create the SRB instead of the
239		/// default PSO. Can be null
240		/// \param [out] ppMaterialSRB - Pointer to memory location where the pointer to the SRB object
241		/// will be written.
242		void CreateMaterialSRB(GLTF::Model& Model,
243		GLTF::Material& Material,
244		IBuffer* pCameraAttribs,
245		IBuffer* pLightAttribs,
246		IPipelineState* pPSO,
247		IShaderResourceBinding** ppMaterialSRB);
248
249
250		/// Creates a shader resource binding for a GTLF resource cache.
251
252		/// \param [in] pDevice - Render device that may be needed by the resource cache to create
253		/// internal objects.
254		/// \param [in] pCtx - Device context that may be needed by the resource cache to initialize
255		/// internal objects.
256		/// \param [in] CacheUseInfo - GLTF resource cache usage information.
257		/// \param [in] pCameraAttribs - Camera attributes constant buffer to set in the SRB.
258		/// \param [in] pLightAttribs - Light attributes constant buffer to set in the SRB.
259		/// \param [in] pPSO - Optional PSO object to use to create the SRB instead of the
260		/// default PSO. Can be null
261		/// \param [out] ppCacheSRB - Pointer to memory location where the pointer to the SRB object
262		/// will be written.
263		void CreateResourceCacheSRB(IRenderDevice* pDevice,
264		IDeviceContext* pCtx,
265		GLTF::ResourceCacheUseInfo& CacheUseInfo,
266		IBuffer* pCameraAttribs,
267		IBuffer* pLightAttribs,
268		IPipelineState* pPSO,
269		IShaderResourceBinding** ppCacheSRB);
270
271		/// Prepares the renderer for rendering objects.
272		/// This method must be called at least once per frame.
273		void Begin(IDeviceContext* pCtx);
274
275
276		/// Prepares the renderer for rendering objects from the resource cache.
277		/// This method must be called at least once per frame before the first object
278		/// from the cache is rendered.
279		void Begin(IRenderDevice* pDevice,
280		IDeviceContext* pCtx,
281		GLTF::ResourceCacheUseInfo& CacheUseInfo,
282		ResourceCacheBindings& Bindings,
283		IBuffer* pCameraAttribs,
284		IBuffer* pLightAttribs,
285		IPipelineState* pPSO = nullptr);
286
287		private:
288		void PrecomputeBRDF(IRenderDevice* pDevice,
289		IDeviceContext* pCtx);
290
291		void CreatePSO(IRenderDevice* pDevice);
292
293		void InitCommonSRBVars(IShaderResourceBinding* pSRB,
294		IBuffer* pCameraAttribs,
295		IBuffer* pLightAttribs);
296
297		struct PSOKey
298		{
299		PSOKey() noexcept {};
300		PSOKey(GLTF::Material::ALPHA_MODE _AlphaMode, bool _DoubleSided) :
301		AlphaMode{_AlphaMode},
302		DoubleSided{_DoubleSided}
303		{}
304
305		bool operator==(const PSOKey& rhs) const
306		{
307		return AlphaMode == rhs.AlphaMode && DoubleSided == rhs.DoubleSided;
308		}
309		bool operator!=(const PSOKey& rhs) const
310		{
311		return AlphaMode != rhs.AlphaMode \|\| DoubleSided != rhs.DoubleSided;
312		}
313
314		GLTF::Material::ALPHA_MODE AlphaMode = GLTF::Material::ALPHA_MODE_OPAQUE;
315		bool DoubleSided = false;
316		};
317
318		static size_t GetPSOIdx(const PSOKey& Key)
319		{
320		size_t PSOIdx;
321
322		PSOIdx = Key.AlphaMode == GLTF::Material::ALPHA_MODE_BLEND ? 1 : 0;
323		PSOIdx = PSOIdx * 2 + (Key.DoubleSided ? 1 : 0);
324		return PSOIdx;
325		}
326
327		void AddPSO(const PSOKey& Key, RefCntAutoPtr<IPipelineState> pPSO)
328		{
329		auto Idx = GetPSOIdx(Key);
330		if (Idx >= m_PSOCache.size())
331		m_PSOCache.resize(Idx + 1);
332		VERIFY_EXPR(!m_PSOCache[Idx]);
333		m_PSOCache[Idx] = std::move(pPSO);
334		}
335
336		IPipelineState* GetPSO(const PSOKey& Key)
337		{
338		auto Idx = GetPSOIdx(Key);
339		VERIFY_EXPR(Idx < m_PSOCache.size());
340		return Idx < m_PSOCache.size() ? m_PSOCache[Idx].RawPtr() : nullptr;
341		}
342
343		const CreateInfo m_Settings;
344
345		static constexpr Uint32 BRDF_LUT_Dim = 512;
346		RefCntAutoPtr<ITextureView> m_pBRDF_LUT_SRV;
347
348		std::vector<RefCntAutoPtr<IPipelineState>> m_PSOCache;
349
350		RefCntAutoPtr<ITextureView> m_pWhiteTexSRV;
351		RefCntAutoPtr<ITextureView> m_pBlackTexSRV;
352		RefCntAutoPtr<ITextureView> m_pDefaultNormalMapSRV;
353		RefCntAutoPtr<ITextureView> m_pDefaultPhysDescSRV;
354
355
356		static constexpr TEXTURE_FORMAT IrradianceCubeFmt = TEX_FORMAT_RGBA32_FLOAT;
357		static constexpr TEXTURE_FORMAT PrefilteredEnvMapFmt = TEX_FORMAT_RGBA16_FLOAT;
358		static constexpr Uint32 IrradianceCubeDim = 64;
359		static constexpr Uint32 PrefilteredEnvMapDim = 256;
360
361		RefCntAutoPtr<ITextureView> m_pIrradianceCubeSRV;
362		RefCntAutoPtr<ITextureView> m_pPrefilteredEnvMapSRV;
363		RefCntAutoPtr<IPipelineState> m_pPrecomputeIrradianceCubePSO;
364		RefCntAutoPtr<IPipelineState> m_pPrefilterEnvMapPSO;
365		RefCntAutoPtr<IShaderResourceBinding> m_pPrecomputeIrradianceCubeSRB;
366		RefCntAutoPtr<IShaderResourceBinding> m_pPrefilterEnvMapSRB;
367
368		RenderInfo m_RenderParams;
369
370		RefCntAutoPtr<IBuffer> m_TransformsCB;
371		RefCntAutoPtr<IBuffer> m_GLTFAttribsCB;
372		RefCntAutoPtr<IBuffer> m_PrecomputeEnvMapAttribsCB;
373		RefCntAutoPtr<IBuffer> m_JointsBuffer;
374		};
375
376		DEFINE_FLAG_ENUM_OPERATORS(GLTF_PBR_Renderer::RenderInfo::ALPHA_MODE_FLAGS)
377
378		} // namespace Diligent

+64

-38

GLTF_PBR_Renderer/src/GLTF_PBR_Renderer.cpp less more

40	40	namespace Diligent
41	41	{
42	42
43		const SamplerDesc GLTF_PBR_Renderer::CreateInfo::DefaultSampler = Sam_LinearWrap;
	43	const SamplerDesc GLTF_RendererCreateInfo::DefaultSampler = Sam_LinearWrap;
44	44
45	45	GLTF_PBR_Renderer::GLTF_PBR_Renderer(IRenderDevice* pDevice,
46	46	IDeviceContext* pCtx,
47		const CreateInfo& CI) :
	47	const GLTF_RendererCreateInfo& CI) :
48	48	m_Settings{CI}
49	49	{
50	50	if (m_Settings.UseIBL)

207	207	// Finally, create the pipeline state
208	208	PSOCreateInfo.pVS = pVS;
209	209	PSOCreateInfo.pPS = pPS;
	210
210	211	pDevice->CreateGraphicsPipelineState(PSOCreateInfo, &PrecomputeBRDF_PSO);
211	212	}
212	213	pCtx->SetPipelineState(PrecomputeBRDF_PSO);

256	257	Macros.AddShaderMacro("USE_TEXTURE_ATLAS", m_Settings.UseTextureAtals);
257	258	Macros.AddShaderMacro("PBR_WORKFLOW_METALLIC_ROUGHNESS", GLTF::Material::PBR_WORKFLOW_METALL_ROUGH);
258	259	Macros.AddShaderMacro("PBR_WORKFLOW_SPECULAR_GLOSINESS", GLTF::Material::PBR_WORKFLOW_SPEC_GLOSS);
259		Macros.AddShaderMacro("GLTF_ALPHA_MODE_OPAQUE", GLTF::Material::ALPHA_MODE_OPAQUE);
260		Macros.AddShaderMacro("GLTF_ALPHA_MODE_MASK", GLTF::Material::ALPHA_MODE_MASK);
261		Macros.AddShaderMacro("GLTF_ALPHA_MODE_BLEND", GLTF::Material::ALPHA_MODE_BLEND);
	260	Macros.AddShaderMacro("GLTF_ALPHA_MODE_OPAQUE", GLTF_MAT_ALPHA_MODE_OPAQUE);
	261	Macros.AddShaderMacro("GLTF_ALPHA_MODE_MASK", GLTF_MAT_ALPHA_MODE_MASK);
	262	Macros.AddShaderMacro("GLTF_ALPHA_MODE_BLEND", GLTF_MAT_ALPHA_MODE_BLEND);
262	263	ShaderCI.Macros = Macros;
263	264	RefCntAutoPtr<IShader> pVS;
264	265	{

342	343	PSOCreateInfo.pVS = pVS;
343	344	PSOCreateInfo.pPS = pPS;
344	345
345		{
346		PSOKey Key{GLTF::Material::ALPHA_MODE_OPAQUE, false};
	346	if (m_Settings.pGS)
	347	PSOCreateInfo.pGS = m_Settings.pGS;
	348
	349	{
	350	PSOKey Key{GLTF_MAT_ALPHA_MODE_OPAQUE, false};
347	351
348	352	RefCntAutoPtr<IPipelineState> pSingleSidedOpaquePSO;
349	353	pDevice->CreateGraphicsPipelineState(PSOCreateInfo, &pSingleSidedOpaquePSO);

370	374	RT0.BlendOpAlpha = BLEND_OPERATION_ADD;
371	375
372	376	{
373		PSOKey Key{GLTF::Material::ALPHA_MODE_BLEND, false};
	377	PSOKey Key{GLTF_MAT_ALPHA_MODE_BLEND, false};
374	378
375	379	RefCntAutoPtr<IPipelineState> pSingleSidedBlendPSO;
376	380	pDevice->CreateGraphicsPipelineState(PSOCreateInfo, &pSingleSidedBlendPSO);

431	435	}
432	436
433	437
434		void GLTF_PBR_Renderer::CreateMaterialSRB(GLTF::Model& Model,
	438	void GLTF_PBR_Renderer::CreateMaterialSRB(IGLTFModel* _Model,
435	439	GLTF::Material& Material,
436	440	IBuffer* pCameraAttribs,
437	441	IBuffer* pLightAttribs,
438	442	IPipelineState* pPSO,
439	443	IShaderResourceBinding** ppMaterialSRB)
440	444	{
	445	auto& Model = static_cast<GLTF::Model>(_Model);
	446
441	447	if (pPSO == nullptr)
442	448	pPSO = GetPSO(PSOKey{});
443	449

494	500
495	501	void GLTF_PBR_Renderer::CreateResourceCacheSRB(IRenderDevice* pDevice,
496	502	IDeviceContext* pCtx,
497		GLTF::ResourceCacheUseInfo& CacheUseInfo,
	503	GLTF_ResourceCacheUseInfo& CacheUseInfo,
498	504	IBuffer* pCameraAttribs,
499	505	IBuffer* pLightAttribs,
500	506	IPipelineState* pPSO,

704	710
705	711
706	712	// clang-format off
707		const std::array<float4x4, 6> Matrices =
	713	const std::array<float4x4, 6> Matrices =
708	714	{
709	715	/* +X */ float4x4::RotationY(+PI_F / 2.f),
710	716	/* -X */ float4x4::RotationY(-PI_F / 2.f),

712	718	/* -Y */ float4x4::RotationX(+PI_F / 2.f),
713	719	/* +Z */ float4x4::Identity(),
714	720	/* -Z */ float4x4::RotationY(PI_F)
715		};
	721	};
716	722	// clang-format on
717	723
718	724	pCtx->SetPipelineState(m_pPrecomputeIrradianceCubePSO);

785	791	}
786	792
787	793
788		GLTF_PBR_Renderer::ModelResourceBindings GLTF_PBR_Renderer::CreateResourceBindings(
789		GLTF::Model& GLTFModel,
	794	GLTF_ModelResourceBindings GLTF_PBR_Renderer::CreateResourceBindings(
	795	IGLTFModel* _GLTFModel,
790	796	IBuffer* pCameraAttribs,
791	797	IBuffer* pLightAttribs)
792	798	{
793		ModelResourceBindings ResourceBindings;
	799	auto& GLTFModel = static_cast<GLTF::Model>(_GLTFModel);
	800	GLTF_ModelResourceBindings ResourceBindings;
794	801	ResourceBindings.MaterialSRB.resize(GLTFModel.Materials.size());
795	802	for (size_t mat = 0; mat < GLTFModel.Materials.size(); ++mat)
796	803	{
797		CreateMaterialSRB(GLTFModel, GLTFModel.Materials[mat], pCameraAttribs, pLightAttribs, nullptr, &ResourceBindings.MaterialSRB[mat]);
	804	CreateMaterialSRB(_GLTFModel, GLTFModel.Materials[mat], pCameraAttribs, pLightAttribs, nullptr, &ResourceBindings.MaterialSRB[mat]);
798	805	}
799	806	return ResourceBindings;
800	807	}

808	815	}
809	816	}
810	817
811		void GLTF_PBR_Renderer::Begin(IRenderDevice* pDevice,
812		IDeviceContext* pCtx,
813		GLTF::ResourceCacheUseInfo& CacheUseInfo,
814		ResourceCacheBindings& Bindings,
815		IBuffer* pCameraAttribs,
816		IBuffer* pLightAttribs,
817		IPipelineState* pPSO)
	818	void GLTF_PBR_Renderer::BeginPSO(IRenderDevice* pDevice,
	819	IDeviceContext* pCtx,
	820	GLTF_ResourceCacheUseInfo& CacheUseInfo,
	821	GLTF_ResourceCacheBindings& Bindings,
	822	IBuffer* pCameraAttribs,
	823	IBuffer* pLightAttribs,
	824	IPipelineState* pPSO)
818	825	{
819	826	VERIFY_EXPR(CacheUseInfo.pResourceMgr != nullptr);
820	827

850	857	pCtx->SetIndexBuffer(pIndexBuffer, 0, RESOURCE_STATE_TRANSITION_MODE_TRANSITION);
851	858	}
852	859
853		void GLTF_PBR_Renderer::Render(IDeviceContext* pCtx,
854		GLTF::Model& GLTFModel,
855		const RenderInfo& RenderParams,
856		ModelResourceBindings* pModelBindings,
857		ResourceCacheBindings* pCacheBindings)
858		{
	860	void GLTF_PBR_Renderer::Render(IDeviceContext* pCtx,
	861	IGLTFModel* _GLTFModel,
	862	const GLTF_RenderInfo& RenderParams,
	863	GLTF_ModelResourceBindings* pModelBindings,
	864	GLTF_ResourceCacheBindings* pCacheBindings)
	865	{
	866	auto& GLTFModel = static_cast<GLTF::Model>(_GLTFModel);
	867
859	868	DEV_CHECK_ERR((pModelBindings != nullptr) ^ (pCacheBindings != nullptr), "Either model bindings or cache bindings must not be null");
860	869	DEV_CHECK_ERR(pModelBindings == nullptr \|\| pModelBindings->MaterialSRB.size() == GLTFModel.Materials.size(),
861	870	"The number of material shader resource bindings is not consistent with the number of materials");

867	876	std::array<Uint32, 2> Offsets = {};
868	877	std::array<IBuffer*, 2> pVBs =
869	878	{
870		GLTFModel.GetBuffer(GLTF::Model::BUFFER_ID_VERTEX_BASIC_ATTRIBS),
871		GLTFModel.GetBuffer(GLTF::Model::BUFFER_ID_VERTEX_SKIN_ATTRIBS) //
	879	GLTFModel.GetBuffer(GLTF_BUFFER_ID_VERTEX_BASIC_ATTRIBS),
	880	GLTFModel.GetBuffer(GLTF_BUFFER_ID_VERTEX_SKIN_ATTRIBS) //
872	881	};
873	882	pCtx->SetVertexBuffers(0, static_cast<Uint32>(pVBs.size()), pVBs.data(), Offsets.data(), RESOURCE_STATE_TRANSITION_MODE_TRANSITION, SET_VERTEX_BUFFERS_FLAG_RESET);
874	883
875		if (auto* pIndexBuffer = GLTFModel.GetBuffer(GLTF::Model::BUFFER_ID_INDEX))
	884	if (auto* pIndexBuffer = GLTFModel.GetBuffer(GLTF_BUFFER_ID_INDEX))
876	885	{
877	886	pCtx->SetIndexBuffer(pIndexBuffer, 0, RESOURCE_STATE_TRANSITION_MODE_TRANSITION);
878	887	}

881	890	const auto FirstIndexLocation = GLTFModel.GetFirstIndexLocation();
882	891	const auto BaseVertex = GLTFModel.GetBaseVertex();
883	892
884		const std::array<GLTF::Material::ALPHA_MODE, 3> AlphaModes //
885		{
886		GLTF::Material::ALPHA_MODE_OPAQUE, // Opaque primitives - first
887		GLTF::Material::ALPHA_MODE_MASK, // Alpha-masked primitives - second
888		GLTF::Material::ALPHA_MODE_BLEND, // Transparent primitives - last (TODO: depth sorting)
	893	const std::array<GLTF_MAT_ALPHA_MODE, 3> AlphaModes //
	894	{
	895	GLTF_MAT_ALPHA_MODE_OPAQUE, // Opaque primitives - first
	896	GLTF_MAT_ALPHA_MODE_MASK, // Alpha-masked primitives - second
	897	GLTF_MAT_ALPHA_MODE_BLEND, // Transparent primitives - last (TODO: depth sorting)
889	898	};
890	899
891	900	const GLTF::Mesh* pLastAnimatedMesh = nullptr;

960	969
961	970	{
962	971	MapHelper<GLTFNodeShaderTransforms> pTransforms{pCtx, m_TransformsCB, MAP_WRITE, MAP_FLAG_DISCARD};
963		pTransforms->NodeMatrix = Mesh.Transforms.matrix * RenderParams.ModelTransform;
	972	pTransforms->NodeMatrix = Mesh.Transforms.matrix * float4x4::MakeMatrix(RenderParams.ModelTransform);
964	973	pTransforms->JointCount = static_cast<int>(JointCount);
965	974	}
966	975

1016	1025	}
1017	1026	}
1018	1027
	1028	API_QUALIFIER
	1029	IGLTF_PBR_Renderer* IGLTF_PBR_Renderer_Create(IRenderDevice* pDevice,
	1030	IDeviceContext* pCtx,
	1031	const GLTF_RendererCreateInfo* CI) {
	1032	return new GLTF_PBR_Renderer(pDevice, pCtx, *CI);
	1033	}
	1034
1019	1035	} // namespace Diligent
	1036
	1037	extern "C"
	1038	{
	1039	API_QUALIFIER
	1040	Diligent::IGLTF_PBR_Renderer* Diligent_IGLTF_PBR_Renderer_Create(Diligent::IRenderDevice* pDevice,
	1041	Diligent::IDeviceContext* pCtx,
	1042	const Diligent::GLTF_RendererCreateInfo* CI) {
	1043	return Diligent::IGLTF_PBR_Renderer_Create(pDevice, pCtx, CI);
	1044	}
	1045	}