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Working shadows, no cascade blend yet

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This commit is contained in:
FakeShemp
2016-02-25 20:29:41 +01:00
parent 73a4336206
commit 8867e7ac3c
7 changed files with 243 additions and 117 deletions
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include/Engine/Rendering/ShadowPass.h
+32 -9
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@@ -9,7 +9,8 @@
#include "ShadowPassState.h"
#include "imgui/imgui.h"
#define MAX_SPLITS 5
#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 };
@@ -19,6 +20,18 @@ struct ShadowCamera{
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:
@@ -31,15 +44,23 @@ public:
void ClearBuffer();
void Draw(RenderScene& scene);
GLuint DepthMap() const { return m_DepthMap[m_ShadowLevel]; }
glm::mat4 lightP() const { return m_LightProjection[m_ShadowLevel]; }
glm::mat4 lightV() const { return m_LightView[m_ShadowLevel]; }
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);
std::array<glm::vec3, 8> UpdateFrustumPoints(Camera* cam, glm::vec3 center, glm::vec3 view_dir);
void UpdateSplitDist(std::array<ShadowCamera, MAX_SPLITS> shadow_cams, float far_distance, float near_distance);
glm::mat4 FindNewFrustum(ShadowCamera shadow_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;
@@ -63,9 +84,11 @@ private:
int m_ShadowLevel = 0;
int m_CurrentNrOfSplits = 3;
float m_SplitWeight = 0.5f;
float m_SplitWeight = 0.75f;
std::array<ShadowCamera, MAX_SPLITS> m_shadCams;
//std::array<ShadowCamera, MAX_SPLITS> m_shadCams;
Frustum m_MainCamera;
std::array<Frustum, MAX_SPLITS> m_shadFrusta;
};
#endif