109 lines
4.5 KiB
C++
109 lines
4.5 KiB
C++
// Copyright (C) 2017 Jérôme Leclercq
|
|
// This file is part of the "Nazara Engine - Graphics module"
|
|
// For conditions of distribution and use, see copyright notice in Config.hpp
|
|
|
|
#pragma once
|
|
|
|
#ifndef NAZARA_FORWARDRENDERTECHNIQUE_HPP
|
|
#define NAZARA_FORWARDRENDERTECHNIQUE_HPP
|
|
|
|
#include <Nazara/Prerequisites.hpp>
|
|
#include <Nazara/Graphics/AbstractRenderTechnique.hpp>
|
|
#include <Nazara/Graphics/Config.hpp>
|
|
#include <Nazara/Graphics/BasicRenderQueue.hpp>
|
|
#include <Nazara/Graphics/Light.hpp>
|
|
#include <Nazara/Renderer/Shader.hpp>
|
|
#include <Nazara/Utility/IndexBuffer.hpp>
|
|
#include <Nazara/Utility/VertexBuffer.hpp>
|
|
|
|
namespace Nz
|
|
{
|
|
class NAZARA_GRAPHICS_API ForwardRenderTechnique : public AbstractRenderTechnique
|
|
{
|
|
public:
|
|
ForwardRenderTechnique();
|
|
~ForwardRenderTechnique() = default;
|
|
|
|
void Clear(const SceneData& sceneData) const override;
|
|
bool Draw(const SceneData& sceneData) const override;
|
|
|
|
unsigned int GetMaxLightPassPerObject() const;
|
|
AbstractRenderQueue* GetRenderQueue() override;
|
|
RenderTechniqueType GetType() const override;
|
|
|
|
void SetMaxLightPassPerObject(unsigned int maxLightPassPerObject);
|
|
|
|
static bool Initialize();
|
|
static void Uninitialize();
|
|
|
|
protected:
|
|
struct ShaderUniforms;
|
|
|
|
void ChooseLights(const Spheref& object, bool includeDirectionalLights = true) const;
|
|
void DrawBillboards(const SceneData& sceneData, const BasicRenderQueue& renderQueue, const RenderQueue<BasicRenderQueue::Billboard>& billboards) const;
|
|
void DrawBillboards(const SceneData& sceneData, const BasicRenderQueue& renderQueue, const RenderQueue<BasicRenderQueue::BillboardChain>& billboards) const;
|
|
void DrawCustomDrawables(const SceneData& sceneData, const BasicRenderQueue& renderQueue, const RenderQueue<BasicRenderQueue::CustomDrawable>& customDrawables) const;
|
|
void DrawModels(const SceneData& sceneData, const BasicRenderQueue& renderQueue, const RenderQueue<BasicRenderQueue::Model>& models) const;
|
|
void DrawSprites(const SceneData& sceneData, const BasicRenderQueue& renderQueue, const RenderQueue<BasicRenderQueue::SpriteChain>& sprites) const;
|
|
|
|
const ShaderUniforms* GetShaderUniforms(const Shader* shader) const;
|
|
void OnShaderInvalidated(const Shader* shader) const;
|
|
void SendLightUniforms(const Shader* shader, const LightUniforms& uniforms, unsigned int index, unsigned int lightIndex, unsigned int uniformOffset) const;
|
|
|
|
static float ComputeDirectionalLightScore(const Spheref& object, const AbstractRenderQueue::DirectionalLight& light);
|
|
static float ComputePointLightScore(const Spheref& object, const AbstractRenderQueue::PointLight& light);
|
|
static float ComputeSpotLightScore(const Spheref& object, const AbstractRenderQueue::SpotLight& light);
|
|
static bool IsDirectionalLightSuitable(const Spheref& object, const AbstractRenderQueue::DirectionalLight& light);
|
|
static bool IsPointLightSuitable(const Spheref& object, const AbstractRenderQueue::PointLight& light);
|
|
static bool IsSpotLightSuitable(const Spheref& object, const AbstractRenderQueue::SpotLight& light);
|
|
|
|
struct LightIndex
|
|
{
|
|
LightType type;
|
|
float score;
|
|
unsigned int index;
|
|
};
|
|
|
|
struct ShaderUniforms
|
|
{
|
|
NazaraSlot(Shader, OnShaderUniformInvalidated, shaderUniformInvalidatedSlot);
|
|
NazaraSlot(Shader, OnShaderRelease, shaderReleaseSlot);
|
|
|
|
LightUniforms lightUniforms;
|
|
bool hasLightUniforms;
|
|
|
|
/// Less costly in memory than storing a LightUniforms by index of light,
|
|
/// this may not work everywhere
|
|
int lightOffset; // "Distance" between Lights[0].type and Lights[1].type
|
|
|
|
// Other uniforms
|
|
int eyePosition;
|
|
int reflectionMap;
|
|
int sceneAmbient;
|
|
int textureOverlay;
|
|
};
|
|
|
|
mutable std::unordered_map<const Shader*, ShaderUniforms> m_shaderUniforms;
|
|
mutable std::vector<LightIndex> m_lights;
|
|
mutable std::vector<std::pair<const VertexStruct_XYZ_Color_UV*, std::size_t>> m_spriteChains;
|
|
Buffer m_vertexBuffer;
|
|
mutable BasicRenderQueue m_renderQueue;
|
|
Texture m_whiteTexture;
|
|
VertexBuffer m_billboardPointBuffer;
|
|
VertexBuffer m_spriteBuffer;
|
|
unsigned int m_maxLightPassPerObject;
|
|
|
|
static IndexBuffer s_quadIndexBuffer;
|
|
static Texture s_dummyReflection;
|
|
static TextureSampler s_reflectionSampler;
|
|
static TextureSampler s_shadowSampler;
|
|
static VertexBuffer s_quadVertexBuffer;
|
|
static VertexDeclaration s_billboardInstanceDeclaration;
|
|
static VertexDeclaration s_billboardVertexDeclaration;
|
|
};
|
|
}
|
|
|
|
#include <Nazara/Graphics/ForwardRenderTechnique.inl>
|
|
|
|
#endif // NAZARA_FORWARDRENDERTECHNIQUE_HPP
|