diff --git a/include/Engine/Rendering/ShadowPass.h b/include/Engine/Rendering/ShadowPass.h index 301af9a5..e26045db 100644 --- a/include/Engine/Rendering/ShadowPass.h +++ b/include/Engine/Rendering/ShadowPass.h @@ -51,16 +51,17 @@ private: GLuint m_DepthFBO; - GLfloat m_NearFarPlane[2] = { -40.f, 30.f }; - GLfloat m_LRBT[4] = { -40.f, 100.f, -50.f, 50.f }; + GLfloat m_NearFarPlane[2] = { -84.f, 28.f }; + GLfloat m_LRBT[4] = { -77.f, 75.f, -89.f, 89.f }; glm::mat4 m_LightProjection; glm::mat4 m_LightView; glm::mat4 m_LightSpaceMatrix; - GLuint resolutionSizeWidth = 2048; - GLuint resolutionSizeHeigth = 2048; + GLuint resolutionSizeWidth = 2048 * 4; + GLuint resolutionSizeHeigth = 2048 * 4; + bool m_ShadowOn = true; }; #endif \ No newline at end of file diff --git a/resources/Shaders/ForwardPlus.frag.glsl b/resources/Shaders/ForwardPlus.frag.glsl index cf3b3ed0..a82555c8 100644 --- a/resources/Shaders/ForwardPlus.frag.glsl +++ b/resources/Shaders/ForwardPlus.frag.glsl @@ -124,7 +124,8 @@ vec2 poissonDisk[4] = vec2[]( float CalcShadowValue(vec4 positionLightSpace, vec4 normal, vec4 lightDir, sampler2D depthTexture) { - float bias = max(0.05 * (1.0 - dot(normal, -lightDir)), 0.005); + float bias = 0.005; + //float bias = max(0.05 * (1.0 - dot(normal, -lightDir)), 0.005); // perform perspective divide vec3 projCoords = positionLightSpace.xyz / positionLightSpace.w; // Transform to [0,1] range @@ -136,21 +137,26 @@ float CalcShadowValue(vec4 positionLightSpace, vec4 normal, vec4 lightDir, sampl //float currentDepth = positionLightSpace.z; float currentDepth = projCoords.z; // Check whether current frag pos is in shadow - //float shadow = currentDepth - bias > closestDepth ? 1.0 : 0.0; - // float shadow = currentDepth > closestDepth ? 1.0 : 0.0; + float shadow = currentDepth - bias > closestDepth ? 1.0 : 0.0; + //float shadow = currentDepth > closestDepth ? 1.0 : 0.0; - float shadow = 0.0; - //soft shadow - using percentage-closer filtering (PCF) is to simply sample the surrounding texels of the depth map and average the results: - vec2 texelSize = 1.0 / textureSize(depthTexture, 0); - for(int x = -1; x <= 1; ++x) + //float shadow = 0.0; + ////soft shadow - using percentage-closer filtering (PCF) is to simply sample the surrounding texels of the depth map and average the results: + //vec2 texelSize = 1.0 / textureSize(depthTexture, 0); + //for(int x = -1; x <= 1; ++x) + //{ + // for(int y = -1; y <= 1; ++y) + // { + // float pcfDepth = texture(depthTexture, projCoords.xy + vec2(x, y) * texelSize).r; + // shadow += currentDepth - bias > pcfDepth ? 1.0 : 0.0; + // } + //} + //shadow /= 9.0; + // + if(projCoords.z > 0.9) { - for(int y = -1; y <= 1; ++y) - { - float pcfDepth = texture(depthTexture, projCoords.xy + vec2(x, y) * texelSize).r; - shadow += currentDepth - bias > pcfDepth ? 1.0 : 0.0; - } + shadow = 1.0; } - shadow /= 9.0; return shadow; diff --git a/src/Engine/Rendering/ShadowPass.cpp b/src/Engine/Rendering/ShadowPass.cpp index c6bb4313..61e37da3 100644 --- a/src/Engine/Rendering/ShadowPass.cpp +++ b/src/Engine/Rendering/ShadowPass.cpp @@ -25,13 +25,14 @@ void ShadowPass::InitializeFrameBuffers() // Depth texture glGenTextures(1, &m_DepthMap); glBindTexture(GL_TEXTURE_2D, m_DepthMap); - glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, resolutionSizeWidth, resolutionSizeHeigth, 0, GL_DEPTH_COMPONENT, GL_FLOAT, nullptr); + glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT32, resolutionSizeWidth, resolutionSizeHeigth, 0, GL_DEPTH_COMPONENT, GL_FLOAT, nullptr); //glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB16F, m_Renderer->GetViewportSize().Width, m_Renderer->GetViewportSize().Height, 0, GL_RGB, GL_FLOAT, 0); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); + m_DepthBuffer.AddResource(std::shared_ptr(new Texture2D(&m_DepthMap, GL_DEPTH_ATTACHMENT))); //m_DepthBuffer.AddResource(std::shared_ptr(new Texture2D(&m_DepthMap, GL_COLOR_ATTACHMENT0))); m_DepthBuffer.Generate(); @@ -66,47 +67,51 @@ void ShadowPass::Draw(RenderScene & scene) m_ShadowProgram->Bind(); glViewport(0, 0, resolutionSizeWidth, resolutionSizeHeigth); - glCullFace(GL_FRONT); - + glCullFace(GL_BACK); + //state->Disable(GL_CULL_FACE); ImGui::DragFloat4("ShadowMapCam", m_LRBT, 1.f, -1000.f, 1000.f); ImGui::DragFloat2("ShadowMapNearFar", m_NearFarPlane, 1.f, -1000.f, 1000.f); + ImGui::Checkbox("EnableShadow", &m_ShadowOn); - for (auto &job : scene.DirectionalLightJobs) { - auto directionalLightJob = std::dynamic_pointer_cast(job); + if (m_ShadowOn == true) + { + for (auto &job : scene.DirectionalLightJobs) { + auto directionalLightJob = std::dynamic_pointer_cast(job); - if(directionalLightJob) { - //m_LightProjection = glm::ortho(m_LRBT[Left], m_LRBT[Right], m_LRBT[Bottom], m_LRBT[Top], m_NearFarPlane[Near], m_NearFarPlane[Far]); - m_LightProjection = glm::ortho(m_LRBT[Left], m_LRBT[Right], m_LRBT[Bottom], m_LRBT[Top], m_NearFarPlane[Near], m_NearFarPlane[Far]); - m_LightView = glm::lookAt(-glm::normalize(glm::vec3(directionalLightJob->Direction)), glm::vec3(0.f,0.f,0.f), glm::vec3(0.f,1.f,0.f)); - //m_LightView = glm::lookAt(glm::vec3(-20.0f, 20.0f, -20.0f), glm::vec3(0.0f), glm::vec3(1.0)); - m_LightSpaceMatrix = m_LightProjection * m_LightView; + if(directionalLightJob) { + //m_LightProjection = glm::ortho(m_LRBT[Left], m_LRBT[Right], m_LRBT[Bottom], m_LRBT[Top], m_NearFarPlane[Near], m_NearFarPlane[Far]); + m_LightProjection = glm::ortho(m_LRBT[Left], m_LRBT[Right], m_LRBT[Bottom], m_LRBT[Top], m_NearFarPlane[Near], m_NearFarPlane[Far]); + m_LightView = glm::lookAt(-glm::normalize(glm::vec3(directionalLightJob->Direction)), glm::vec3(0.f,0.f,0.f), glm::vec3(0.f,1.f,0.f)); + //m_LightView = glm::lookAt(glm::vec3(-20.0f, 20.0f, -20.0f), glm::vec3(0.0f), glm::vec3(1.0)); + m_LightSpaceMatrix = m_LightProjection * m_LightView; - glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "P"), 1, GL_FALSE, glm::value_ptr(m_LightProjection)); - glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "V"), 1, GL_FALSE, glm::value_ptr(m_LightView)); + glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "P"), 1, GL_FALSE, glm::value_ptr(m_LightProjection)); + glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "V"), 1, GL_FALSE, glm::value_ptr(m_LightView)); - GLERROR("ShadowLight ERROR"); + GLERROR("ShadowLight ERROR"); - for (auto &objectJob : scene.OpaqueObjects) { - auto modelJob = std::dynamic_pointer_cast(objectJob); + for (auto &objectJob : scene.OpaqueObjects) { + auto modelJob = std::dynamic_pointer_cast(objectJob); - glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "M"), 1, GL_FALSE, glm::value_ptr(modelJob->Matrix)); + glUniformMatrix4fv(glGetUniformLocation(shaderHandle, "M"), 1, GL_FALSE, glm::value_ptr(modelJob->Matrix)); - 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))); + 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"); + GLERROR("Shadow Draw ERROR"); - } + } + } + + m_DepthBuffer.Unbind(); + + delete state; + + } - - m_DepthBuffer.Unbind(); - - delete state; - - }