diff --git a/include/Engine/Rendering/DrawFinalPass.h b/include/Engine/Rendering/DrawFinalPass.h index cfddd5c6..c5b937c6 100644 --- a/include/Engine/Rendering/DrawFinalPass.h +++ b/include/Engine/Rendering/DrawFinalPass.h @@ -11,11 +11,12 @@ #include "Util/UnorderedMapVec2.h" #include "Util/CommonFunctions.h" #include "Texture.h" +#include "ShadowPass.h" class DrawFinalPass { public: - DrawFinalPass(IRenderer* renderer, LightCullingPass* lightCullingPass, CubeMapPass* cubeMapPass, SSAOPass* ssaoPass); + DrawFinalPass(IRenderer* renderer, LightCullingPass* lightCullingPass, CubeMapPass* cubeMapPass, SSAOPass* ssaoPass, ShadowPass* shadowPass); ~DrawFinalPass() { } void InitializeTextures(); void InitializeFrameBuffers(); @@ -65,6 +66,7 @@ private: const LightCullingPass* m_LightCullingPass; const CubeMapPass* m_CubeMapPass; const SSAOPass* m_SSAOPass; + const ShadowPass* m_ShadowPass; ShaderProgram* m_ForwardPlusProgram; ShaderProgram* m_ExplosionEffectProgram; diff --git a/include/Engine/Rendering/Renderer.h b/include/Engine/Rendering/Renderer.h index a64a4aa3..fd3b215e 100644 --- a/include/Engine/Rendering/Renderer.h +++ b/include/Engine/Rendering/Renderer.h @@ -26,6 +26,7 @@ #include "TextPass.h" #include "Util/CommonFunctions.h" #include "Core/PerformanceTimer.h" +#include "ShadowPass.h" class Renderer : public IRenderer { @@ -75,6 +76,7 @@ private: DrawColorCorrectionPass* m_DrawColorCorrectionPass; SSAOPass* m_SSAOPass; CubeMapPass* m_CubeMapPass; + ShadowPass* m_ShadowPass; //----------------------Functions----------------------// void InitializeWindow(); diff --git a/include/Engine/Rendering/ShadowPass.h b/include/Engine/Rendering/ShadowPass.h new file mode 100644 index 00000000..6db8a624 --- /dev/null +++ b/include/Engine/Rendering/ShadowPass.h @@ -0,0 +1,87 @@ +#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 4 + +enum NearFar { NEAR = 0, FAR = 1 }; +enum LRBT { LEFT = 0, RIGHT = 1, BOTTOM = 2, TOP = 3 }; + +struct ShadowFrustum +{ + float NearClip; + float FarClip; + float FOV; + float AspectRatio; + glm::vec3 MiddlePoint; + float Radius; + std::array LRBT; + std::array CornerPoint; +}; + +class ShadowPass +{ +public: + ShadowPass(IRenderer* renderer); + ShadowPass(IRenderer * renderer, int ShadowResX, int ShadowResY); + ~ShadowPass(); + + void InitializeFrameBuffers(); + void InitializeShaderPrograms(); + void ClearBuffer(); + void Draw(RenderScene& scene); + + void DebugGUI(); + + GLuint DepthMap() const { return m_DepthMap; } + std::array LightP() const { return m_LightProjection; } + std::array LightV() const { return m_LightView; } + std::array FarDistance() const { std::array f; for (int i = 0; i < MAX_SPLITS; i++) f[i] = m_shadowFrusta[i].FarClip; return f; } + int CurrentNrOfSplits() const { return m_CurrentNrOfSplits; } + + void SetSplitWeight(float split_weight) { m_SplitWeight = split_weight; }; +private: + void InitializeCameras(RenderScene & scene); + void UpdateSplitDist(std::array& frusta, float near_distance, float far_distance); + void UpdateFrustumPoints(ShadowFrustum& frustum, glm::vec3 camera_position, glm::vec3 view_dir); + void UpdateFrustumPoints(ShadowFrustum& frustum, glm::mat4 p, glm::mat4 v); + + void PointsToLightspace(ShadowFrustum& frustum, glm::mat4 v); + + float FindRadius(ShadowFrustum& frustum); + void RadiusToLightspace(ShadowFrustum& frustum); + + EventBroker* m_EventBroker; + const IRenderer* m_Renderer; + + GLuint m_DepthMap; + FrameBuffer m_DepthBuffer; + ShaderProgram* m_ShadowProgram; + + std::array m_LightProjection; + std::array m_LightView; + + GLfloat m_NearFarPlane[2] = { -34.f, 27.f }; + GLuint m_ResolutionSizeWidth = 1024 * 2; + GLuint m_ResolutionSizeHeight = 1024 * 2; + + bool m_TransparentObjects = false; + bool m_TexturedShadows = false; + bool m_EnableShadows = true; + + int m_CurrentNrOfSplits = 4; + float m_SplitWeight = 0.962f; + + std::array m_shadowFrusta; + + Texture* m_WhiteTexture = ResourceManager::Load("Textures/Core/White.png"); +}; + +#endif \ No newline at end of file diff --git a/include/Engine/Rendering/ShadowPassState.h b/include/Engine/Rendering/ShadowPassState.h new file mode 100644 index 00000000..f881b48e --- /dev/null +++ b/include/Engine/Rendering/ShadowPassState.h @@ -0,0 +1,15 @@ +#ifndef ShadowPassState_h_ +#define ShadowPassState_h_ + +#include "Rendering/RenderState.h" + +class ShadowPassState : public RenderState +{ +public: + ShadowPassState(GLuint frameBuffer); + ~ShadowPassState(); + +private: +}; + +#endif \ No newline at end of file diff --git a/resources/Schema/Entities/GameMap.xml b/resources/Schema/Entities/GameMap.xml index c3a16361..473b9037 100644 --- a/resources/Schema/Entities/GameMap.xml +++ b/resources/Schema/Entities/GameMap.xml @@ -245,6 +245,13 @@ + + + + + + + diff --git a/resources/Schema/Entities/OliviaTestWorld.xml b/resources/Schema/Entities/OliviaTestWorld.xml new file mode 100644 index 00000000..23c2b283 --- /dev/null +++ b/resources/Schema/Entities/OliviaTestWorld.xml @@ -0,0 +1,1558 @@ + + + + + + + + + + + + + + + + Models/Core/UnitPlane.mesh + + + + + + + + + + + 90 + + + + + + + + + + + + 1 + + + + + + + + + + + Audio/crosscounter.wav + true + + + + + + + + + + SoundEmitter + Fonts/DroidSans.ttf,64 + + + + + + + + + + + + + + + + + + + + + Sound Test + Fonts/DroidSans.ttf,64 + + + + + + + + + + + + + 0.80000001192092896 + + + Models/DirectionalLightWidget.mesh + + + 1 + + + + + + + + + + + + + + + + + + + + + Run + + 1 + + + models/AssaultAnimated.mesh + + + + + + + + + + + Walk + + 1 + + + models/AssaultAnimated.mesh + + + + + + + + + Animation test + Fonts/DroidSans.ttf,64 + + + + + + + + + + + + Models/Core/UnitCylinder.mesh + + + + + + + + + + + + + + + + + + + + 0.5 + + + + + + + + + + + Run + + 1 + + + Models/AssaultAnimated.mesh + + + + + + + + + + + + + + + + + + + + + + + + models/NormSpecIncdMapSphere.mesh + + + + + + + + + 1 + + + + + + + + + + + Models/Core/UnitSphere.mesh + + + + 3 + 1.1399998664855957 + + + + + + + + + + + + Models/Core/UnitSphere.mesh + + + + 5.0100002288818359 + 0.69999998807907104 + + + + + + + + + + + + Models/Core/UnitSphere.mesh + + + + 4 + 0.80000001192092896 + + + + + + + + + + + + + + 1 + + + + + + + + + + + Models/NormalMapSphere.mesh + + + + + + + + + + + Models/SpecularMapSphere.mesh + + + + + + + + + + 1 + + + + + + + + + + + Models/Core/UnitSphere.mesh + + + + 3 + 1.1399998664855957 + + + + + + + + + + + + + + + + Models/IncandescenceMapSphere.mesh + + + + + + + + + + + + + TextureMap's Test + Fonts/DroidSans.ttf,64 + + + + + + + + + + + + + + 1.3999999761581421 + + + + + + + + + + + + + + + + + Schema/Entities/Player.xml + + + + + + + + + + + + + + + + Models/Assault.mesh + + + + + + + + + + + + + Models/Assault.mesh + + + + + + + + + + + + + Models/Assault.mesh + + + + + + + + + + + + + Models/Assault.mesh + + + + + + + + + + + + + + + Schema/Entities/Player.xml + + + + + + + + + + + + + + + + + Models/Assault.mesh + + + + + + + + + + + + + Models/Assault.mesh + + + + + + + + + + + + + Models/Assault.mesh + + + + + + + + + + + + + Models/Assault.mesh + + + + + + + + + + + + + + Spawn Test + Fonts/DroidSans.ttf,64 + + + + + + + + + + + + + + + + + + + + + Models/Core/UnitCube.mesh + + true + + + + + + + + + + + Models/Core/UnitCylinder.mesh + + true + + + + + + + + + + + + Models/Core/UnitRaptor.mesh + + true + + + + + + + + + + + Models/Assault.mesh + + true + + + + + + + + + + + + Models/Core/UnitCube.mesh + + true + + + + + + + + + + + + + Transparency Test + Fonts/DroidSans.ttf,64 + + + + + + + + + + + + + + + + + + + + + Models/Core/UnitCylinder.mesh + + + + + + + + + + + + + + + + + + + + 0.5 + + + + + + + + + + + Models/AssaultBlueWeapon.mesh + + + + + + + + + + + + + + + + Models/Core/UnitCylinder.mesh + + + + + + + + + + + + + + + + + + + + 0.5 + + + + + + + + + + + Models/AssaultRedWeapon.mesh + + + + + + + + + + + + + + + + Asset Test + Fonts/DroidSans.ttf,64 + + + + + + + + + + + + Models/Core/UnitCylinder.mesh + + + + + + + + + + + + + + + + + + + + 0.5 + + + + + + + + + + + Models/SecondaryWeapon.mesh + + + + + + + + + + + + + + + + Models/Core/UnitCylinder.mesh + + + + + + + + + + + + + + + + + + + + 0.5 + + + + + + + + + + + Models/AssualtSoft.mesh + + + + + + + + + + + + + + + Models/Core/UnitCylinder.mesh + + + + + + + + + + + + + + + + + + + + 0.5 + + + + + + + + + + + Models/DefenderGunBlue.mesh + + + + + + + + + + + + + + + + Models/Core/UnitCylinder.mesh + + + + + + + + + + + + + + + + + + + + 0.5 + + + + + + + + + + + Models/DefenderGunRed.mesh + + + + + + + + + + + + + + + + Models/Core/UnitCylinder.mesh + + + + + + + + + + + + + + + + + + + + 0.5 + + + + + + + + + + + Models/Assualt.mesh + + + + + + + + + + + + + + + + + + + + + + + + CapturePoint Test + Fonts/DroidSans.ttf,64 + + + + + + + + + + + + Models/CapturePoint.mesh + + + + + + + + + + + + + + + + Models/Core/UnitCube.mesh + + true + + + + + + + + + + + + + + + + + + Red team home point + Fonts/DroidSans.ttf,64 + + + + + + + + + + + + + + + Models/CapturePoint.mesh + + + + + + + + + + + 1 + + + Models/Core/UnitCube.mesh + + + + + + + + + + + + + + + RedMiddle Point + Fonts/DroidSans.ttf + + + + + + + + + + + + + + + Models/CapturePoint.mesh + + + + + + + + + 2 + + + Models/Core/UnitCube.mesh + true + + + + + + + + + + + + + + Middle Point + Fonts/DroidSans.ttf,64 + + + + + + + + + + + + + + + Models/CapturePoint.mesh + + + + + + + + + + + -12.033302729641917 + 3 + + + Models/Core/UnitCube.mesh + + + + + + + + + + + + + + + BlueMiddle Point + Fonts/DroidSans.ttf + + + + + + + + + + + + + + + Models/CapturePoint.mesh + + + + + + + + + + + + + + 4 + + + Models/Core/UnitCube.mesh + + true + + + + + + + + + + + + + + + + + + Blue team home point + Fonts/DroidSans.ttf,64 + + + + + + + + + + + + + + + + + + + + + + + + + + + + + Models/Test/ObstacleCourse.mesh + + + + + + + + + + + Collision Test + Fonts/DroidSans.ttf,64 + + + + + + + + + + + + + + + Models/Core/UnitCube.mesh + + + + + + + + + + + + + + Models/Core/UnitCube.mesh + + + + + + + + + + + + + + Models/Core/UnitCube.mesh + + + + + + + + + + + + + + + + + + + + + Models/Core/UnitCylinder.mesh + + + + + + + + + + + + + + + + + + + + 0.5 + + + + + + + + + + + true + + 2.3331127968986038 + 3.7999999523162842 + + true + + + Models/AssaultWeaponBlue.mesh + true + + + + + + + + + + + + + + + + Models/Core/UnitCylinder.mesh + + + + + + + + + + + + + + + + + + + + 0.5 + + + + + + + + + + + + + 0.28322599621543532 + + + Models/Assault.mesh + true + + + + + + + + + + + + + + + Models/Core/UnitCylinder.mesh + + + + + + + + + + + + + + + + + + + + 0.5 + + + + + + + + + + + Walk + + 1 + + + true + + + 1.8831113377486872 + + true + + + Models/AssaultAnimated.mesh + true + + + + + + + + + + + + + + + ExplosionEffect Test + Fonts/DroidSans.ttf,64 + + + + + + + + + + + + + + + + + + + + + Remember to pick random entities. + Fonts/DroidSans.ttf,64 + + + + + + + + + + + + + + diff --git a/resources/Schema/Entities/QualityAssurance.xml b/resources/Schema/Entities/QualityAssurance.xml index 04cc288a..0d9421ab 100644 --- a/resources/Schema/Entities/QualityAssurance.xml +++ b/resources/Schema/Entities/QualityAssurance.xml @@ -559,8 +559,8 @@ - Models/Core/UnitCube.mesh - + Models/BushAlive.mesh + true diff --git a/resources/Shaders/ExplosionEffect.geom.glsl b/resources/Shaders/ExplosionEffect.geom.glsl index 44b44aa6..ffc78900 100644 --- a/resources/Shaders/ExplosionEffect.geom.glsl +++ b/resources/Shaders/ExplosionEffect.geom.glsl @@ -1,5 +1,7 @@ #version 430 +#define MAX_SPLITS 4 + uniform mat4 M; uniform mat4 V; uniform mat4 P; @@ -22,6 +24,7 @@ in VertexData{ vec2 TextureCoordinate; vec4 ExplosionColor; float ExplosionPercentageElapsed; + vec4 PositionLightSpace[MAX_SPLITS]; }Input[]; out VertexData{ @@ -32,6 +35,7 @@ out VertexData{ vec2 TextureCoordinate; vec4 ExplosionColor; float ExplosionPercentageElapsed; + vec4 PositionLightSpace[MAX_SPLITS]; }Output; layout(triangles) in; @@ -145,6 +149,7 @@ void main() Output.TextureCoordinate = Input[i].TextureCoordinate; Output.Tangent = Input[i].Tangent; Output.BiTangent = Input[i].BiTangent; + Output.PositionLightSpace = Input[i].PositionLightSpace; // convert to model space for the gravity to always be in -y vec4 ExplodedPositionInModelSpace = M * vec4(ExplodedPosition, 1.0); @@ -186,6 +191,7 @@ void main() Output.TextureCoordinate = Input[i].TextureCoordinate; Output.Tangent = Input[i].Tangent; Output.BiTangent = Input[i].BiTangent; + Output.PositionLightSpace = Input[i].PositionLightSpace; // no change in position, pass through vertex gl_Position = gl_in[i].gl_Position; diff --git a/resources/Shaders/ForwardPlus.frag.glsl b/resources/Shaders/ForwardPlus.frag.glsl index aa45d118..f7ddd00c 100644 --- a/resources/Shaders/ForwardPlus.frag.glsl +++ b/resources/Shaders/ForwardPlus.frag.glsl @@ -1,6 +1,7 @@ #version 430 #define MIN_AMBIENT_LIGHT 0.3 +#define MAX_SPLITS 4 uniform mat4 M; uniform mat4 V; @@ -14,6 +15,7 @@ uniform float FillPercentage; uniform float GlowIntensity = 10; uniform vec3 CameraPosition; uniform int SSAOQuality; +uniform float FarDistance[MAX_SPLITS]; uniform vec2 DiffuseUVRepeat; uniform vec2 NormalUVRepeat; @@ -25,6 +27,7 @@ layout (binding = 2) uniform sampler2D NormalMapTexture; layout (binding = 3) uniform sampler2D SpecularMapTexture; layout (binding = 4) uniform sampler2D GlowMapTexture; layout (binding = 5) uniform samplerCube CubeMap; +layout (binding = 13) uniform sampler2DArrayShadow DepthMap; #define TILE_SIZE 16 @@ -59,7 +62,6 @@ layout (std430, binding = 4) buffer LightIndexBuffer float LightIndex[]; }; - in VertexData{ vec3 Position; vec3 Normal; @@ -68,6 +70,7 @@ in VertexData{ vec2 TextureCoordinate; vec4 ExplosionColor; float ExplosionPercentageElapsed; + vec4 PositionLightSpace[MAX_SPLITS]; }Input; out vec4 sceneColor; @@ -78,6 +81,25 @@ struct LightResult { vec4 Specular; }; +vec2 poissonDisk[16] = vec2[]( + vec2( -0.94201624, -0.39906216 ), + vec2( 0.94558609, -0.76890725 ), + vec2( -0.094184101, -0.92938870 ), + vec2( 0.34495938, 0.29387760 ), + vec2( -0.91588581, 0.45771432 ), + vec2( -0.81544232, -0.87912464 ), + vec2( -0.38277543, 0.27676845 ), + vec2( 0.97484398, 0.75648379 ), + vec2( 0.44323325, -0.97511554 ), + vec2( 0.53742981, -0.47373420 ), + vec2( -0.26496911, -0.41893023 ), + vec2( 0.79197514, 0.19090188 ), + vec2( -0.24188840, 0.99706507 ), + vec2( -0.81409955, 0.91437590 ), + vec2( 0.19984126, 0.78641367 ), + vec2( 0.14383161, -0.14100790 ) + ); + float CalcAttenuation(float radius, float dist, float falloff) { return 1.0 - smoothstep(radius * falloff, radius, dist); } @@ -124,6 +146,154 @@ vec4 CalcNormalMappedValue(vec3 normal, vec3 tangent, vec3 bitangent, vec2 textu return vec4(TBN * normalize(NormalMap), 0.0); } +// Returns a "random" value. +float Random(vec3 seed, int i) +{ + vec4 seed4 = vec4(seed, i); + float dot_product = dot(seed4, vec4(12.9898, 78.233, 45.164, 94.673)); + return fract(sin(dot_product) * 43758.5453); +} + +int getShadowIndex(float far_distance[1]) +{ + return 0; +} + +int getShadowIndex(float far_distance[2]) +{ + float depth = gl_FragCoord.z / gl_FragCoord.w; + + int index = 1; + if ( depth < far_distance[0] ) + { + index = 0; + } + + return index; +} + +int getShadowIndex(float far_distance[3]) +{ + float depth = gl_FragCoord.z / gl_FragCoord.w; + + int index = 2; + if ( depth < far_distance[0] ) + { + index = 0; + } + else if ( depth < far_distance[1] && depth > far_distance[0] ) + { + index = 1; + } + + return index; +} + +int getShadowIndex(float far_distance[4]) +{ + float depth = gl_FragCoord.z / gl_FragCoord.w; + + int index = 3; + if ( depth < far_distance[0] ) + { + index = 0; + } + else if ( depth < far_distance[1] && depth > far_distance[0] ) + { + index = 1; + } + else if ( depth < far_distance[2] && depth > far_distance[1] ) + { + index = 2; + } + + return index; +} + +// Standard hardware-calculated PCF method +float PCFShadow(sampler2DArrayShadow depth_texture_array, vec3 projection_coords, int layer_index) +{ + return texture(depth_texture_array, vec4(projection_coords.xy, layer_index, projection_coords.z)); +} + +// PCF + Poisson model method +float PoissonShadow(sampler2DArrayShadow depth_texture_array, vec3 projection_coords, int layer_index, int taps, float spread) +{ + int loop; + float multiplier = 1.0 / float(taps); + float shadowMapDepth; + + for (int i = 0; i < taps; i++) + { + loop = i; + vec3 newProjCoords = projection_coords + vec3(poissonDisk[loop], 0.0) / (spread * (1.0 + layer_index)); + shadowMapDepth += multiplier * texture(depth_texture_array, vec4(newProjCoords.xy, layer_index, newProjCoords.z)); + } + + return shadowMapDepth; +} + +// PCF + Poisson + RandomSample model method +float PoissonDotShadow(sampler2DArrayShadow depth_texture_array, vec3 projection_coords, int layer_index, int taps, float spread) +{ + int loop; + float multiplier = 1.0 / float(taps); + float shadowMapDepth; + + for (int i = 0; i < taps; i++) + { + loop = int(16.0 * Random(gl_FragCoord.xyy, i)) % 16; + vec3 newProjCoords = projection_coords + vec3(poissonDisk[loop], 0.0) / (spread * (1.0 + layer_index)); + shadowMapDepth += multiplier * texture(depth_texture_array, vec4(newProjCoords.xy, layer_index, newProjCoords.z)); + } + + return shadowMapDepth; +} + +// Hardware PCF + Additional software PCF method +float SoftwarePCF(sampler2DArrayShadow depth_texture_array, vec3 projection_coords, int layer_index, float bias) +{ + float shadow = 0.0; + + vec3 texelSize = 1.0 / textureSize(depth_texture_array, 0); + for(int x = -1; x <= 1; x++) + { + for(int y = -1; y <= 1; y++) + { + shadow += texture(depth_texture_array, vec4(projection_coords.xy + vec2(x, y) * texelSize.xy / (1.0 + layer_index), layer_index, projection_coords.z)); + } + } + + return shadow / 9.0; +} + +float CalcShadowValue(vec4 light_space_pos, vec3 normal, vec3 light_dir, sampler2DArrayShadow depth_texture_array, int layer_index) +{ + float shadowMapDepth; + float bias = 0.005; + + // Various bias methods. + + //bias = max(0.05 * (1.0 - dot(normal, light_dir)), bias); + //bias = bias * tan(acos(clamp(dot(normal, -light_dir), 0.0, 1.0))); + bias = bias + bias * tan(acos(clamp(dot(normal, -light_dir), 0.0, 1.0))); + + // Calculate coordinates in projection space. + + vec3 projCoords = vec3(light_space_pos.xy, light_space_pos.z + bias) / light_space_pos.w; + projCoords = projCoords * 0.5 + 0.5; + //projCoords = (floor(projCoords * 255.0)) / 255.0; + + // Various methods for shadow calculation in fastest to slowest order. + + //shadowMapDepth = PCFShadow(depth_texture_array, projCoords, layer_index); + //shadowMapDepth = PoissonShadow(depth_texture_array, projCoords, layer_index, 4, 25.0 * FarDistance[MAX_SPLITS - 1]); + //shadowMapDepth = PoissonDotShadow(depth_texture_array, projCoords, layer_index, 4, 25.0 * FarDistance[MAX_SPLITS - 1]); + shadowMapDepth = SoftwarePCF(depth_texture_array, projCoords, layer_index, bias); + + return shadowMapDepth; +} + void main() { float ao = texelFetch(AOTexture, ivec2(gl_FragCoord.xy) >> int(SSAOQuality), 0).r; @@ -151,6 +321,8 @@ void main() int start = int(LightGrids.Data[currentTile].Start); int amount = int(LightGrids.Data[currentTile].Amount); + + float shadowFactor = 0.0; for(int i = start; i < start + amount; i++) { @@ -162,11 +334,16 @@ void main() if(light.Type == 1) { // point light_result = CalcPointLightSource(V * light.Position, light.Radius, light.Color, light.Intensity, viewVec, position, normal, light.Falloff); } else if (light.Type == 2) { //Directional + int DepthMapIndex = getShadowIndex(FarDistance); light_result = CalcDirectionalLightSource(V * light.Direction, light.Color, light.Intensity, viewVec, normal); + shadowFactor = CalcShadowValue(Input.PositionLightSpace[DepthMapIndex], Input.Normal, vec3(light.Direction), DepthMap, DepthMapIndex); } totalLighting.Diffuse += vec4(light_result.Diffuse.rgb * ao, light_result.Diffuse.a); totalLighting.Specular += vec4(light_result.Specular.rgb * ao, light_result.Specular.a); } + + totalLighting.Diffuse *= vec4(min(vec3(shadowFactor) + AmbientColor.xyz, vec3(1.0)), 1.0); + totalLighting.Specular *= vec4(min(vec3(shadowFactor) + AmbientColor.xyz, vec3(1.0)), 1.0); vec4 color_result = mix((Color * diffuseTexel * DiffuseColor), Input.ExplosionColor, Input.ExplosionPercentageElapsed); color_result = color_result * (totalLighting.Diffuse + (totalLighting.Specular * specularTexel)); diff --git a/resources/Shaders/ForwardPlus.vert.glsl b/resources/Shaders/ForwardPlus.vert.glsl index 26686222..2a54415b 100644 --- a/resources/Shaders/ForwardPlus.vert.glsl +++ b/resources/Shaders/ForwardPlus.vert.glsl @@ -1,8 +1,12 @@ #version 430 +#define MAX_SPLITS 4 + uniform mat4 M; uniform mat4 V; uniform mat4 P; +uniform mat4 LightV[MAX_SPLITS]; +uniform mat4 LightP[MAX_SPLITS]; layout(location = 0) in vec3 Position; layout(location = 1) in vec3 Normal; @@ -18,6 +22,7 @@ out VertexData{ vec2 TextureCoordinate; vec4 ExplosionColor; float ExplosionPercentageElapsed; + vec4 PositionLightSpace[MAX_SPLITS]; }Output; void main() @@ -31,4 +36,9 @@ void main() Output.BiTangent = vec3(TIM * vec4(BiTangent, 0.0)); Output.ExplosionColor = vec4(1.0); Output.ExplosionPercentageElapsed = 0.0; + + for(int i = 0; i < MAX_SPLITS; i++) + { + Output.PositionLightSpace[i] = LightP[i] * LightV[i] * M * vec4(Position, 1.0); + } } \ No newline at end of file diff --git a/resources/Shaders/ForwardPlusShieldCheck.frag.glsl b/resources/Shaders/ForwardPlusShieldCheck.frag.glsl index 35db495b..8c7dce04 100644 --- a/resources/Shaders/ForwardPlusShieldCheck.frag.glsl +++ b/resources/Shaders/ForwardPlusShieldCheck.frag.glsl @@ -1,6 +1,7 @@ #version 430 #define MIN_AMBIENT_LIGHT 0.3 +#define MAX_SPLITS 4 uniform mat4 M; uniform mat4 V; @@ -69,6 +70,7 @@ in VertexData{ vec2 TextureCoordinate; vec4 ExplosionColor; float ExplosionPercentageElapsed; + vec4 PositionLightSpace[MAX_SPLITS]; }Input; out vec4 sceneColor; diff --git a/resources/Shaders/ForwardPlusSkinned.vert.glsl b/resources/Shaders/ForwardPlusSkinned.vert.glsl index 5fd55a8c..12b3c406 100644 --- a/resources/Shaders/ForwardPlusSkinned.vert.glsl +++ b/resources/Shaders/ForwardPlusSkinned.vert.glsl @@ -1,9 +1,13 @@ #version 430 +#define MAX_SPLITS 4 + uniform mat4 M; uniform mat4 V; uniform mat4 P; uniform mat4 Bones[100]; +uniform mat4 LightV[MAX_SPLITS]; +uniform mat4 LightP[MAX_SPLITS]; layout(location = 0) in vec3 Position; layout(location = 1) in vec3 Normal; @@ -21,6 +25,7 @@ out VertexData{ vec2 TextureCoordinate; vec4 ExplosionColor; float ExplosionPercentageElapsed; + vec4 PositionLightSpace[MAX_SPLITS]; }Output; void main() @@ -43,4 +48,9 @@ void main() Output.BiTangent = vec3(M * vec4(BiTangent, 0.0)); Output.ExplosionColor = vec4(1.0); Output.ExplosionPercentageElapsed = 0.0; + + for(int i = 0; i < MAX_SPLITS; i++) + { + Output.PositionLightSpace[i] = LightP[i] * LightV[i] * M * boneTransform * vec4(Position, 1.0); + } } \ No newline at end of file diff --git a/resources/Shaders/ForwardPlusSplatMap.frag.glsl b/resources/Shaders/ForwardPlusSplatMap.frag.glsl index 239c51b5..655f5502 100644 --- a/resources/Shaders/ForwardPlusSplatMap.frag.glsl +++ b/resources/Shaders/ForwardPlusSplatMap.frag.glsl @@ -1,5 +1,7 @@ #version 430 +#define MAX_SPLITS 4 + uniform mat4 M; uniform mat4 V; uniform mat4 P; @@ -95,6 +97,7 @@ in VertexData{ vec2 TextureCoordinate; vec4 ExplosionColor; float ExplosionPercentageElapsed; + vec4 PositionLightSpace[MAX_SPLITS]; }Input; out vec4 sceneColor; diff --git a/resources/Shaders/ForwardPlusSplatMapRGB.frag.glsl b/resources/Shaders/ForwardPlusSplatMapRGB.frag.glsl index c67a9c99..f933a605 100644 --- a/resources/Shaders/ForwardPlusSplatMapRGB.frag.glsl +++ b/resources/Shaders/ForwardPlusSplatMapRGB.frag.glsl @@ -1,6 +1,7 @@ #version 430 #define MIN_AMBIENT_LIGHT 0.3 +#define MAX_SPLITS 4 uniform mat4 M; uniform mat4 V; @@ -83,6 +84,7 @@ in VertexData{ vec2 TextureCoordinate; vec4 ExplosionColor; float ExplosionPercentageElapsed; + vec4 PositionLightSpace[MAX_SPLITS]; }Input; out vec4 sceneColor; diff --git a/resources/Shaders/Shadow.frag.glsl b/resources/Shaders/Shadow.frag.glsl new file mode 100644 index 00000000..c7d153c3 --- /dev/null +++ b/resources/Shaders/Shadow.frag.glsl @@ -0,0 +1,22 @@ +#version 430 + +#define ALPHA_CUTOFF 0.3 + +layout (binding = 24) uniform sampler2D DiffuseTexture; +uniform float Alpha; + +in VertexData{ + vec2 TextureCoordinate; +}Input; + +layout (location = 0) out float ShadowMap; + +void main() +{ + vec4 diffuseTexel = texture(DiffuseTexture, Input.TextureCoordinate) * Alpha; + + if (diffuseTexel.a < ALPHA_CUTOFF) + { + discard; + } +} \ No newline at end of file diff --git a/resources/Shaders/Shadow.vert.glsl b/resources/Shaders/Shadow.vert.glsl new file mode 100644 index 00000000..7b1b26fb --- /dev/null +++ b/resources/Shaders/Shadow.vert.glsl @@ -0,0 +1,18 @@ +#version 430 + +uniform mat4 M; +uniform mat4 V; +uniform mat4 P; + +layout (location = 0) in vec3 Position; +layout (location = 4) in vec2 TextureCoords; + +out VertexData{ + vec2 TextureCoordinate; +}Output; + +void main() +{ + gl_Position = P * V * M * vec4(Position, 1.0); + Output.TextureCoordinate = TextureCoords; +} \ No newline at end of file diff --git a/src/Engine/Rendering/DrawFinalPass.cpp b/src/Engine/Rendering/DrawFinalPass.cpp index 6cdf42d1..510c665e 100644 --- a/src/Engine/Rendering/DrawFinalPass.cpp +++ b/src/Engine/Rendering/DrawFinalPass.cpp @@ -1,9 +1,10 @@ #include "Rendering/DrawFinalPass.h" -DrawFinalPass::DrawFinalPass(IRenderer* renderer, LightCullingPass* lightCullingPass, CubeMapPass* cubeMapPass, SSAOPass* ssaoPass) +DrawFinalPass::DrawFinalPass(IRenderer* renderer, LightCullingPass* lightCullingPass, CubeMapPass* cubeMapPass, SSAOPass* ssaoPass, ShadowPass* shadowPass) : m_Renderer(renderer) , m_LightCullingPass(lightCullingPass) , m_CubeMapPass(cubeMapPass) , m_SSAOPass(ssaoPass) + , m_ShadowPass(shadowPass) { //TODO: Make sure that uniforms are not sent into shader if not needed. m_ShieldPixelRate = 8; @@ -343,6 +344,14 @@ void DrawFinalPass::DrawModelRenderQueues(std::list>& glActiveTexture(GL_TEXTURE0); glBindTexture(GL_TEXTURE_2D, m_SSAOPass->SSAOTexture()); + glActiveTexture(GL_TEXTURE13); + if (m_ShadowPass->DepthMap() != NULL) { + glBindTexture(GL_TEXTURE_2D_ARRAY, m_ShadowPass->DepthMap()); + } + else { + glBindTexture(GL_TEXTURE_2D_ARRAY, m_WhiteTexture->m_Texture); + } + for (auto &job : jobs) { auto explosionEffectJob = std::dynamic_pointer_cast(job); if (explosionEffectJob) { @@ -1083,6 +1092,10 @@ void DrawFinalPass::BindExplosionUniforms(GLuint shaderHandle, std::shared_ptrGlowIntensity); + + glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "LightP"), MAX_SPLITS, GL_FALSE, glm::value_ptr(*m_ShadowPass->LightP().data())); + glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "LightV"), MAX_SPLITS, GL_FALSE, glm::value_ptr(*m_ShadowPass->LightV().data())); + glUniform1fv(glGetUniformLocation(shaderHandle, "FarDistance"), MAX_SPLITS, m_ShadowPass->FarDistance().data()); GLERROR("END"); } @@ -1121,8 +1134,11 @@ void DrawFinalPass::BindModelUniforms(GLuint shaderHandle, std::shared_ptrGlowIntensity); - glUniform1f(Location_GlowIntensity, job->GlowIntensity); + glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "LightP"), MAX_SPLITS, GL_FALSE, glm::value_ptr(*m_ShadowPass->LightP().data())); + glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "LightV"), MAX_SPLITS, GL_FALSE, glm::value_ptr(*m_ShadowPass->LightV().data())); + glUniform1fv(glGetUniformLocation(shaderHandle, "FarDistance"), MAX_SPLITS, m_ShadowPass->FarDistance().data()); GLERROR("END"); } diff --git a/src/Engine/Rendering/FrameBuffer.cpp b/src/Engine/Rendering/FrameBuffer.cpp index da438e7a..ee02db94 100644 --- a/src/Engine/Rendering/FrameBuffer.cpp +++ b/src/Engine/Rendering/FrameBuffer.cpp @@ -53,16 +53,20 @@ void FrameBuffer::Generate() case GL_TEXTURE_2D: glFramebufferTexture2D(GL_FRAMEBUFFER, (*it)->m_Attachment, (*it)->m_ResourceType, *(*it)->m_ResourceHandle, 0); GLERROR("FrameBuffer generate: glFramebufferTexture2D"); - break; case GL_RENDERBUFFER: glFramebufferRenderbuffer(GL_FRAMEBUFFER, (*it)->m_Attachment, (*it)->m_ResourceType, *(*it)->m_ResourceHandle); GLERROR("FrameBuffer generate: glFramebufferRenderbuffer"); break; + case GL_TEXTURE_2D_ARRAY: + glFramebufferTexture(GL_FRAMEBUFFER, (*it)->m_Attachment, *(*it)->m_ResourceHandle, 0); + GLERROR("FrameBuffer generate: glFramebufferTexture2DArray"); + break; } GLERROR("2"); - if ((*it)->m_Attachment != GL_DEPTH_ATTACHMENT && (*it)->m_Attachment != GL_STENCIL_ATTACHMENT && (*it)->m_Attachment != GL_DEPTH_STENCIL_ATTACHMENT) { + // Need GL_DEPTH_ATTACHMENT for shadows + if (/*(*it)->m_Attachment != GL_DEPTH_ATTACHMENT &&*/ (*it)->m_Attachment != GL_STENCIL_ATTACHMENT && (*it)->m_Attachment != GL_DEPTH_STENCIL_ATTACHMENT) { attachments.push_back((*it)->m_Attachment); } GLERROR("Attachment"); diff --git a/src/Engine/Rendering/Renderer.cpp b/src/Engine/Rendering/Renderer.cpp index 3ce985b6..b9a6aa05 100644 --- a/src/Engine/Rendering/Renderer.cpp +++ b/src/Engine/Rendering/Renderer.cpp @@ -133,6 +133,8 @@ void Renderer::Draw(RenderFrame& frame) m_DrawFinalPass->ClearBuffer(); m_DrawBloomPass->ClearBuffer(); m_SSAOPass->ClearBuffer(); + m_ShadowPass->ClearBuffer(); + m_ShadowPass->DebugGUI(); PerformanceTimer::StopTimer("Renderer-ClearBuffers"); GLERROR("ClearBuffers"); for (auto scene : frame.RenderScenes) { @@ -148,6 +150,9 @@ void Renderer::Draw(RenderFrame& frame) PerformanceTimer::StartTimer("Renderer-Depth"); SortRenderJobsByDepth(*scene); GLERROR("SortByDepth"); + PerformanceTimer::StartTimerAndStopPrevious("Draw shadow maps"); + m_ShadowPass->Draw(*scene); + GLERROR("Draw shadow maps"); PerformanceTimer::StartTimerAndStopPrevious("Renderer-Generate Frustrums"); m_LightCullingPass->GenerateNewFrustum(*scene); GLERROR("Generate frustums"); @@ -244,7 +249,8 @@ void Renderer::InitializeRenderPasses() m_LightCullingPass = new LightCullingPass(this); m_CubeMapPass = new CubeMapPass(this); m_SSAOPass = new SSAOPass(this, m_Config); - m_DrawFinalPass = new DrawFinalPass(this, m_LightCullingPass, m_CubeMapPass, m_SSAOPass); + m_ShadowPass = new ShadowPass(this); + m_DrawFinalPass = new DrawFinalPass(this, m_LightCullingPass, m_CubeMapPass, m_SSAOPass, m_ShadowPass); m_DrawScreenQuadPass = new DrawScreenQuadPass(this); m_DrawBloomPass = new DrawBloomPass(this, m_Config); m_DrawColorCorrectionPass = new DrawColorCorrectionPass(this); diff --git a/src/Engine/Rendering/ShadowPass.cpp b/src/Engine/Rendering/ShadowPass.cpp new file mode 100644 index 00000000..daf63ef2 --- /dev/null +++ b/src/Engine/Rendering/ShadowPass.cpp @@ -0,0 +1,305 @@ +#include "Rendering/ShadowPass.h" + +ShadowPass::ShadowPass(IRenderer * renderer, int shadow_res_x, int shadow_res_y) +{ + m_Renderer = renderer; + m_ResolutionSizeWidth = shadow_res_x; + m_ResolutionSizeHeight = shadow_res_y; + + InitializeFrameBuffers(); + InitializeShaderPrograms(); +} + +ShadowPass::ShadowPass(IRenderer * renderer) +{ + m_Renderer = renderer; + + InitializeFrameBuffers(); + InitializeShaderPrograms(); +} + +ShadowPass::~ShadowPass() +{ + +} + +void ShadowPass::DebugGUI() +{ + ImGui::Checkbox("EnableShadows", &m_EnableShadows); + ImGui::DragFloat2("ShadowMapNearFar", m_NearFarPlane, 1.f, -1000.f, 1000.f); + ImGui::DragFloat("ShadowClippingWeight", &m_SplitWeight, 0.001f, 0.f, 1.f); + ImGui::Checkbox("ShadowTransparentObjects", &m_TransparentObjects); + ImGui::Checkbox("ShadowOnTextureAlphas", &m_TexturedShadows); +} + +void ShadowPass::InitializeCameras(RenderScene & scene) +{ + for (int i = 0; i < m_CurrentNrOfSplits; i++) { + m_shadowFrusta[i].AspectRatio = scene.Camera->AspectRatio(); + m_shadowFrusta[i].FOV = scene.Camera->FOV(); + } +} + +// UpdateSplitDist computes the near and far distances for every frustum slice +// in camera eye space - that is, at what distance does a slice start and end +void ShadowPass::UpdateSplitDist(std::array& frusta, float near_distance, float far_distance) +{ + float lambda = m_SplitWeight; + float ratio = far_distance / near_distance; + + frusta[0].NearClip = near_distance; + + for (int i = 1; i < m_CurrentNrOfSplits; i++) { + float si = i / static_cast(m_CurrentNrOfSplits); + + frusta[i].NearClip = lambda * (near_distance * powf(ratio, si)) + (1 - lambda) * (near_distance + (far_distance - near_distance) * si); + frusta[i - 1].FarClip = frusta[i].NearClip * 1.005f; + } + + frusta[m_CurrentNrOfSplits - 1].FarClip = far_distance; +} + +void ShadowPass::UpdateFrustumPoints(ShadowFrustum& frustum, glm::mat4 p, glm::mat4 v) +{ + std::array CornerPoint = { + glm::vec4(-1.f, -1.f, -1.f, 1.f), + glm::vec4(-1.f, 1.f, -1.f, 1.f), + glm::vec4(1.f, 1.f, -1.f, 1.f), + glm::vec4(1.f, -1.f, -1.f, 1.f), + glm::vec4(-1.f, -1.f, 1.f, 1.f), + glm::vec4(-1.f, 1.f, 1.f, 1.f), + glm::vec4(1.f, 1.f, 1.f, 1.f), + glm::vec4(1.f, -1.f, 1.f, 1.f) + }; + + for (int i = 0; i < 8; i++) { + glm::vec4 NDC = glm::inverse(p) * CornerPoint[i]; + NDC = NDC / NDC.w; + frustum.CornerPoint[i] = glm::vec3(glm::inverse(v) * NDC); + } +} + +// Compute the 8 corner points of the current view frustum in world space +void ShadowPass::UpdateFrustumPoints(ShadowFrustum& frustum, glm::vec3 camera_position, glm::vec3 view_dir) +{ + glm::vec3 up = glm::vec3(0.f, 1.f, 0.f); + glm::vec3 right = glm::normalize(glm::cross(view_dir, up)); + + glm::vec3 far_center = camera_position + glm::normalize(view_dir) * frustum.FarClip; + glm::vec3 near_center = camera_position + glm::normalize(view_dir) * frustum.NearClip; + frustum.MiddlePoint = near_center + (far_center - near_center) * 0.5f; + + up = glm::normalize(glm::cross(right, view_dir)); + + // these heights and widths are half the heights and widths of the near and far plane rectangles. + float near_height = tan(frustum.FOV / 2.f) * frustum.NearClip; + float near_width = near_height * frustum.AspectRatio; + float far_height = tan(frustum.FOV / 2.f) * frustum.FarClip; + float far_width = far_height * frustum.AspectRatio; + + frustum.CornerPoint[0] = near_center - up * near_height - right * near_width; + frustum.CornerPoint[1] = near_center + up * near_height - right * near_width; + frustum.CornerPoint[2] = near_center + up * near_height + right * near_width; + frustum.CornerPoint[3] = near_center - up * near_height + right * near_width; + + frustum.CornerPoint[4] = far_center - up * far_height - right * far_width; + frustum.CornerPoint[5] = far_center + up * far_height - right * far_width; + frustum.CornerPoint[6] = far_center + up * far_height + right * far_width; + frustum.CornerPoint[7] = far_center - up * far_height + right * far_width; +} + +float ShadowPass::FindRadius(ShadowFrustum& frustum) +{ + float radius = 0.f; + + for (int i = 0; i < 8; i++) { + float distance = glm::distance(frustum.MiddlePoint, frustum.CornerPoint[i]); + if (distance > radius) { + radius = distance; + } + } + + frustum.Radius = radius; + return radius; +} + +void ShadowPass::InitializeFrameBuffers() +{ + // Depth texture + glGenTextures(1, &m_DepthMap); + + glBindTexture(GL_TEXTURE_2D_ARRAY, m_DepthMap); + glTexStorage3D(GL_TEXTURE_2D_ARRAY, 1, GL_DEPTH_COMPONENT16, m_ResolutionSizeWidth, m_ResolutionSizeHeight, m_CurrentNrOfSplits); + + glTexSubImage3D(GL_TEXTURE_2D_ARRAY, 0, 0, 0, 0, m_ResolutionSizeWidth, m_ResolutionSizeHeight, m_CurrentNrOfSplits, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, nullptr); + + glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER); + glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER); + glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_R_TO_TEXTURE); + glTexParameterfv(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_BORDER_COLOR, glm::vec4(1.f).data); + glTexParameteri(GL_TEXTURE_2D_ARRAY, GL_TEXTURE_COMPARE_FUNC, GL_LEQUAL); + + m_DepthBuffer.AddResource(std::shared_ptr(new Texture2D(&m_DepthMap, GL_DEPTH_ATTACHMENT))); + m_DepthBuffer.Generate(); + + GLERROR("depthMap failed END"); +} + +void ShadowPass::InitializeShaderPrograms() +{ + m_ShadowProgram = ResourceManager::Load("#ShadowProgram"); + m_ShadowProgram->AddShader(std::shared_ptr(new VertexShader("Shaders/Shadow.vert.glsl"))); + m_ShadowProgram->AddShader(std::shared_ptr(new FragmentShader("Shaders/Shadow.frag.glsl"))); + m_ShadowProgram->Compile(); + m_ShadowProgram->BindFragDataLocation(0, "ShadowMap"); + m_ShadowProgram->Link(); + + +} + +void ShadowPass::ClearBuffer() +{ + m_DepthBuffer.Bind(); + + for (int i = 0; i < m_CurrentNrOfSplits; i++) { + glFramebufferTextureLayer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, m_DepthMap, 0, i); + + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); + } + + m_DepthBuffer.Unbind(); +} + +void ShadowPass::PointsToLightspace(ShadowFrustum& frustum, glm::mat4 v) +{ + float left = INFINITY; + float right = -INFINITY; + float bottom = INFINITY; + float top = -INFINITY; + + for (int i = 0; i < 8; i++) + { + glm::vec3 tempPoint = glm::vec3(v * glm::vec4(frustum.CornerPoint[i], 1.f)); + + if (tempPoint.x < left) { left = tempPoint.x; } + if (tempPoint.x > right) { right = tempPoint.x; } + if (tempPoint.y < bottom) { bottom = tempPoint.y; } + if (tempPoint.y > top) { top = tempPoint.y; } + } + + frustum.LRBT = { left, right, bottom, top }; +} + +void ShadowPass::RadiusToLightspace(ShadowFrustum& frustum) +{ + float quantizationStep = 1.0f / m_ResolutionSizeHeight; + + float left = -frustum.Radius; + float right = frustum.Radius; + float bottom = -frustum.Radius; + float top = frustum.Radius; + + frustum.LRBT = { left, right, bottom, top }; +} + +void ShadowPass::Draw(RenderScene & scene) +{ + if (m_EnableShadows) { + InitializeCameras(scene); + UpdateSplitDist(m_shadowFrusta, scene.Camera->NearClip(), scene.Camera->FarClip()); + + ShadowPassState* state = new ShadowPassState(m_DepthBuffer.GetHandle()); + + m_ShadowProgram->Bind(); + GLuint shaderHandle = m_ShadowProgram->GetHandle(); + glViewport(0, 0, m_ResolutionSizeWidth, m_ResolutionSizeHeight); + + for (int i = 0; i < m_CurrentNrOfSplits; i++) { + UpdateFrustumPoints(m_shadowFrusta[i], scene.Camera->Position(), scene.Camera->Forward()); + + glFramebufferTextureLayer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, m_DepthMap, 0, i); + + for (auto &job : scene.Jobs.DirectionalLight) { + auto directionalLightJob = std::dynamic_pointer_cast(job); + + if (directionalLightJob) { + m_LightView[i] = glm::lookAt(glm::vec3(-directionalLightJob->Direction) + m_shadowFrusta[i].MiddlePoint, m_shadowFrusta[i].MiddlePoint, glm::vec3(0.f, 1.f, 0.f)); + + PointsToLightspace(m_shadowFrusta[i], m_LightView[i]); + //FindRadius(m_shadowFrusta[i]); + //RadiusToLightspace(m_shadowFrusta[i]); + m_LightProjection[i] = glm::ortho(m_shadowFrusta[i].LRBT[LEFT], m_shadowFrusta[i].LRBT[RIGHT], m_shadowFrusta[i].LRBT[BOTTOM], m_shadowFrusta[i].LRBT[TOP], m_NearFarPlane[NEAR], m_NearFarPlane[FAR]); + + glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "P"), 1, GL_FALSE, glm::value_ptr(m_LightProjection[i])); + glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "V"), 1, GL_FALSE, glm::value_ptr(m_LightView[i])); + + GLERROR("ShadowLight ERROR"); + + for (auto &objectJob : scene.Jobs.OpaqueObjects) { + if (!std::dynamic_pointer_cast(objectJob)) { + auto modelJob = std::dynamic_pointer_cast(objectJob); + + glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "M"), 1, GL_FALSE, glm::value_ptr(modelJob->Matrix)); + glUniform1f(glGetUniformLocation(shaderHandle, "Alpha"), 1.f); + + glBindVertexArray(modelJob->Model->VAO); + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, modelJob->Model->ElementBuffer); + glDrawElements(GL_TRIANGLES, modelJob->EndIndex - modelJob->StartIndex + 1, GL_UNSIGNED_INT, (void*)(modelJob->StartIndex * sizeof(unsigned int))); + + GLERROR("Shadow Draw ERROR"); + } + } + if (m_TransparentObjects) { + state->CullFace(GL_BACK); + for (auto &objectJob : scene.Jobs.TransparentObjects) { + if (!std::dynamic_pointer_cast(objectJob)) { + auto modelJob = std::dynamic_pointer_cast(objectJob); + + glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "M"), 1, GL_FALSE, glm::value_ptr(modelJob->Matrix)); + glUniform1f(glGetUniformLocation(shaderHandle, "Alpha"), modelJob->Color.a); + + if (m_TexturedShadows) { + switch (modelJob->Type) { + case RawModel::MaterialType::SingleTextures: + case RawModel::MaterialType::Basic: + { + glActiveTexture(GL_TEXTURE24); + if (modelJob->DiffuseTexture.size() > 0 && modelJob->DiffuseTexture[0]->Texture != nullptr) { + glBindTexture(GL_TEXTURE_2D, modelJob->DiffuseTexture[0]->Texture->m_Texture); + glUniform2fv(glGetUniformLocation(shaderHandle, "DiffuseUVRepeat"), 1, glm::value_ptr(modelJob->DiffuseTexture[0]->UVRepeat)); + } + else { + glBindTexture(GL_TEXTURE_2D, m_WhiteTexture->m_Texture); + glUniform2fv(glGetUniformLocation(shaderHandle, "DiffuseUVRepeat"), 1, glm::value_ptr(glm::vec2(1.0f, 1.0f))); + } + break; + } + case RawModel::MaterialType::SplatMapping: + { + glActiveTexture(GL_TEXTURE24); + glBindTexture(GL_TEXTURE_2D, m_WhiteTexture->m_Texture); + glUniform2fv(glGetUniformLocation(shaderHandle, "DiffuseUVRepeat"), 1, glm::value_ptr(glm::vec2(1.0f, 1.0f))); + break; + } + } + } + + glBindVertexArray(modelJob->Model->VAO); + glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, modelJob->Model->ElementBuffer); + glDrawElements(GL_TRIANGLES, modelJob->EndIndex - modelJob->StartIndex + 1, GL_UNSIGNED_INT, (void*)(modelJob->StartIndex * sizeof(unsigned int))); + + GLERROR("Shadow Draw ERROR"); + } + } + state->CullFace(GL_FRONT); + } + } + } + } + glViewport(0, 0, m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height); + m_DepthBuffer.Unbind(); + delete state; + } +} \ No newline at end of file diff --git a/src/Engine/Rendering/ShadowPassState.cpp b/src/Engine/Rendering/ShadowPassState.cpp new file mode 100644 index 00000000..2211e3ab --- /dev/null +++ b/src/Engine/Rendering/ShadowPassState.cpp @@ -0,0 +1,19 @@ +#include "Rendering/ShadowPassState.h" + +ShadowPassState::ShadowPassState(GLuint frameBuffer) +{ + BindFramebuffer(frameBuffer); + Enable(GL_DEPTH_TEST); + Enable(GL_CULL_FACE); + Disable(GL_BLEND); + Disable(GL_TEXTURE_2D); + CullFace(GL_FRONT); + ClearColor(glm::vec4(0.f, 0.f, 0.f, 0.f)); + //Enable(GL_ALPHA_TEST); + //glAlphaFunc(GL_GREATER, 0.9f); +} + +ShadowPassState::~ShadowPassState() +{ + +} \ No newline at end of file