FakeShemp
94 lines
2.7 KiB
C++
94 lines
2.7 KiB
C++
#ifndef ShadowPass_h_
|
|
#define ShadowPass_h_
|
|
|
|
#include "IRenderer.h"
|
|
#include "FrameBuffer.h"
|
|
#include "ShaderProgram.h"
|
|
#include "../Core/EventBroker.h"
|
|
#include "../Core/World.h"
|
|
#include "ShadowPassState.h"
|
|
#include "imgui/imgui.h"
|
|
|
|
#define MAX_SPLITS 3
|
|
#define MAP_SIZE 216.f
|
|
|
|
enum NearFar { Near = 0, Far = 1 };
|
|
enum LRBT { Left = 0, Right = 1, Bottom = 2, Top = 3 };
|
|
|
|
struct ShadowCamera{
|
|
Camera* camera;
|
|
std::array<glm::vec3, 8> frustumCorners;
|
|
};
|
|
|
|
struct Frustum
|
|
{
|
|
float NearClip;
|
|
float FarClip;
|
|
float FOV;
|
|
float AspectRatio;
|
|
glm::vec3 MiddlePoint;
|
|
float Radius;
|
|
std::array<float, 4> LRTB;
|
|
std::array<glm::vec3, 8> CornerPoint;
|
|
};
|
|
|
|
class ShadowPass
|
|
{
|
|
public:
|
|
|
|
ShadowPass(IRenderer* renderer);
|
|
~ShadowPass();
|
|
|
|
void InitializeFrameBuffers();
|
|
void InitializeShaderPrograms();
|
|
void ClearBuffer();
|
|
void Draw(RenderScene& scene);
|
|
|
|
GLuint DepthMap(int level) const { return m_DepthMap[level]; }
|
|
std::array<glm::mat4, MAX_SPLITS> lightP() const { return m_LightProjection; }
|
|
std::array<glm::mat4, MAX_SPLITS> lightV() const { return m_LightView; }
|
|
std::array<float, MAX_SPLITS> farDistance() const { return { m_shadFrusta[0].FarClip, m_shadFrusta[1].FarClip, m_shadFrusta[2].FarClip }; }
|
|
int CurrentNrOfSplits() const { return m_CurrentNrOfSplits; }
|
|
private:
|
|
void UpdateFrustumPoints(Frustum& frustum, glm::vec3 camera_position, glm::vec3 view_dir, glm::mat4 p, glm::mat4 v);
|
|
void UpdateSplitDist(std::array<Frustum, MAX_SPLITS>& frusta, float near_distance, float far_distance);
|
|
glm::mat4 ApplyCropMatrix(Frustum& frustum, glm::mat4 m, glm::mat4 v);
|
|
|
|
glm::mat4 CalculateFrustum(RenderScene & scene, std::shared_ptr<DirectionalLightJob> directionalLightJob, ShadowCamera shad_cam);
|
|
glm::mat4 FindNewFrustum(Frustum frustum, glm::mat4 v, glm::mat4 p);
|
|
void InitializeCameras(RenderScene & scene);
|
|
float FindRadius(Frustum& frustum);
|
|
void PointsToLightspace(Frustum& frustum, glm::mat4 v);
|
|
void RadiusToLightspace(Frustum& frustum, glm::mat4 v);
|
|
|
|
|
|
EventBroker* m_EventBroker;
|
|
const IRenderer* m_Renderer;
|
|
|
|
std::array<GLuint, MAX_SPLITS> m_DepthMap;
|
|
std::array<FrameBuffer, MAX_SPLITS> m_DepthBuffer;
|
|
|
|
std::array<glm::mat4, MAX_SPLITS> m_LightProjection;
|
|
std::array<glm::mat4, MAX_SPLITS> m_LightView;
|
|
|
|
ShaderProgram* m_ShadowProgram;
|
|
GLuint m_DepthFBO;
|
|
|
|
GLfloat m_NearFarPlane[2] = { -34.f, 27.f };
|
|
GLfloat m_LRBT[4] = { -10.f, 10.f, -10.f, 10.f };
|
|
|
|
GLuint resolutionSizeWidth = 1024 * 2;
|
|
GLuint resolutionSizeHeigth = 1024 * 2;
|
|
|
|
bool m_ShadowOn = true;
|
|
int m_ShadowLevel = 0;
|
|
|
|
int m_CurrentNrOfSplits = 3;
|
|
float m_SplitWeight = 0.75f;
|
|
|
|
//std::array<ShadowCamera, MAX_SPLITS> m_shadCams;
|
|
Frustum m_MainCamera;
|
|
std::array<Frustum, MAX_SPLITS> m_shadFrusta;
|
|
};
|
|
|
|
#endif |