Added Shadows to project

shaders/programDepth.frag

@@ -0,0 +1,5 @@
+#version 430 core
+
+void main()
+{             
+}

shaders/programDepth.vert

@@ -0,0 +1,13 @@
+#version 330 core
+
+layout(location = 0) in vec3 vertexPosition;
+layout(location = 1) in vec3 vertexNormal;
+layout(location = 2) in vec2 vertexTexCoord;
+
+uniform mat4 viewProjectionMatrix;
+uniform mat4 modelMatrix;
+
+void main()
+{
+    gl_Position = viewProjectionMatrix * modelMatrix * vec4(vertexPosition, 1.0);
+}

shaders/shader_9_1.frag

@@ -4,6 +4,9 @@ float AMBIENT = 0.03;
 float PI = 3.14;
 
 uniform sampler2D depthMap;
+//uniform sampler2D depthMaplamp;
+uniform sampler2D depthMapflash;
+
 
 uniform vec3 cameraPos;
 
@@ -35,9 +38,28 @@ in vec3 viewDirTS;
 in vec3 lightDirTS;
 in vec3 spotlightDirTS;
 in vec3 sunDirTS;
+in vec4 sunSpacePos;
+in vec4 lampSpacePos;
+in vec4 flashSpacePos;
 
 in vec3 test;
+float calculateShadow()
+{
+    vec4 lightSpacePosNormalized = (0.5*sunSpacePos / (sunSpacePos.w)) + 0.5;
+    float closestDepth = texture2D(depthMap, lightSpacePosNormalized.xy).x;
+    float diff = (0.001+closestDepth) - lightSpacePosNormalized.z;//lightSpacePosNormalized.z;
 
+    return (0.5*(diff)/abs(diff))+0.5;
+}
+
+float calculateShadowOtherLigths(vec4 ligthSpacePos, sampler2D ligthDepthMap)
+{
+    vec4 lightSpacePosNormalized = (0.5*ligthSpacePos / (ligthSpacePos.w)) + 0.5;
+    float closestDepth = texture2D(ligthDepthMap, lightSpacePosNormalized.xy).x;
+    float diff = (0.001+closestDepth) - lightSpacePosNormalized.z;//lightSpacePosNormalized.z;
+
+    return (0.5*(diff)/abs(diff))+0.5;
+}
 float DistributionGGX(vec3 normal, vec3 H, float roughness){
     float a      = roughness*roughness;
     float a2     = a*a;
@@ -123,13 +145,13 @@ void main()
 
     float angle_atenuation = clamp((dot(-normalize(spotlightPos-worldPos),spotlightConeDir)-0.5)*3,0,1);
 	attenuatedlightColor = angle_atenuation*spotlightColor/pow(length(spotlightPos-worldPos),2);
-	ilumination=ilumination+PBRLight(spotlightDir,attenuatedlightColor,normal,viewDir);
+	ilumination=ilumination+PBRLight(spotlightDir,attenuatedlightColor*calculateShadowOtherLigths(flashSpacePos, depthMapflash),normal,viewDir);
 
 	//sun
-	ilumination=ilumination+PBRLight(sunDir,sunColor,normal,viewDir);
+	ilumination=ilumination+PBRLight(sunDir,sunColor*calculateShadow(),normal,viewDir);
 
     
 	outColor = vec4(vec3(1.0) - exp(-ilumination*exposition),1);
-	//outColor = vec4(roughness,metallic,0,1);
+	//outColor = (0.5*sunSpacePos / (sunSpacePos.w+0.0001)) + 0.5;
     //outColor = vec4(test;
 }

shaders/shader_9_1.vert

@@ -9,9 +9,6 @@ layout(location = 4) in vec3 vertexBitangent;
 uniform mat4 transformation;
 uniform mat4 modelMatrix;
 
-out vec3 vecNormal;
-out vec3 worldPos;
-
 uniform vec3 lightPos;
 uniform vec3 spotlightPos;
 uniform vec3 cameraPos;
@@ -21,6 +18,17 @@ out vec3 viewDirTS;
 out vec3 lightDirTS;
 out vec3 spotlightDirTS;
 out vec3 sunDirTS;
+out vec3 worldPos;
+out vec3 vecNormal;
+out vec4 sunSpacePos;
+out vec4 lampSpacePos;
+out vec4 flashSpacePos;
+
+
+
+uniform mat4 LightVP;
+uniform mat4 LightVPlamp;
+uniform mat4 LightVPflash;
 
 void main()
 {
@@ -40,4 +48,8 @@ void main()
 	spotlightDirTS = TBN*SL;
 	sunDirTS = TBN*sunDir;
 
+	sunSpacePos=LightVP*modelMatrix*vec4(vertexPosition,1);
+	lampSpacePos=LightVPlamp*modelMatrix*vec4(vertexPosition,1);
+	flashSpacePos=LightVPflash*modelMatrix*vec4(vertexPosition,1);
+
 }

src/ex_9_1.hpp

@@ -36,13 +36,18 @@ namespace models {
 	Core::RenderContext testContext;
 }
 
-GLuint depthMapFBO;
+GLuint depthMapFBOsun;
-GLuint depthMap;
+GLuint depthMapFBOlamp;
+GLuint depthMapFBOflash;
+GLuint depthMapsun;
+GLuint depthMaplamp;
+GLuint depthMapflash;
 
 GLuint program;
 GLuint programSun;
 GLuint programTest;
 GLuint programTex;
+GLuint programDepth;
 
 Core::Shader_Loader shaderLoader;
 
@@ -74,20 +79,11 @@ glm::vec3 spotlightColor = glm::vec3(0.4, 0.4, 0.9)*3;
 float spotlightPhi = 3.14 / 4;
 
 
+glm::mat4 lightVPsun;
+glm::mat4 lightVPlamp;
+glm::mat4 lightVPflash;
 
-float lastTime = -1.f;
-float deltaTime = 0.f;
 
-void updateDeltaTime(float time) {
-	if (lastTime < 0) {
-		lastTime = time;
-		return;
-	}
-
-	deltaTime = time - lastTime;
-	if (deltaTime > 0.1) deltaTime = 0.1;
-	lastTime = time;
-}
 glm::mat4 createCameraMatrix()
 {
 	glm::vec3 cameraSide = glm::normalize(glm::cross(cameraDir,glm::vec3(0.f,1.f,0.f)));
@@ -124,6 +120,24 @@ glm::mat4 createPerspectiveMatrix()
 
 	return perspectiveMatrix;
 }
+glm::mat4 createPerspectiveMatrixC(float n, float f)
+{
+
+	glm::mat4 perspectiveMatrix;
+	float a1 = glm::min(aspectRatio, 1.f);
+	float a2 = glm::min(1 / aspectRatio, 1.f);
+	perspectiveMatrix = glm::mat4({
+		1,0.,0.,0.,
+		0.,aspectRatio,0.,0.,
+		0.,0.,(f + n) / (n - f),2 * f * n / (n - f),
+		0.,0.,-1.,0.,
+		});
+
+
+	perspectiveMatrix = glm::transpose(perspectiveMatrix);
+
+	return perspectiveMatrix;
+}
 
 void drawObjectPBR(Core::RenderContext& context, glm::mat4 modelMatrix, glm::vec3 color, float roughness, float metallic) {
 
@@ -151,15 +165,85 @@ void drawObjectPBR(Core::RenderContext& context, glm::mat4 modelMatrix, glm::vec
 	glUniform3f(glGetUniformLocation(program, "spotlightPos"), spotlightPos.x, spotlightPos.y, spotlightPos.z);
 	glUniform3f(glGetUniformLocation(program, "spotlightColor"), spotlightColor.x, spotlightColor.y, spotlightColor.z);
 	glUniform1f(glGetUniformLocation(program, "spotlightPhi"), spotlightPhi);
+
+
+	glUniformMatrix4fv(glGetUniformLocation(program, "LightVP"), 1, GL_FALSE, (float*)&lightVPsun);
+	//glUniformMatrix4fv(glGetUniformLocation(program, "LightVPlamp"), 1, GL_FALSE, (float*)&lightVPlamp);
+	glUniformMatrix4fv(glGetUniformLocation(program, "LightVPflash"), 1, GL_FALSE, (float*)&lightVPflash);
+
+
+	//glUniform1i(glGetUniformLocation(program, "depthMap"), depthMap);
+	//glActiveTexture(GL_TEXTURE0);
+	//glBindTexture(GL_TEXTURE_2D, depthMap);
+	//void Core::SetActiveTexture(GLuint textureID, const char* shaderVariableName, GLuint programID, int textureUnit)
+	//{
+		//glUniform1i(glGetUniformLocation(programID, shaderVariableName), textureUnit);
+		//glActiveTexture(GL_TEXTURE0 + textureUnit);
+		//glBindTexture(GL_TEXTURE_2D, textureID);
+	//}
+	glUniform1i(glGetUniformLocation(program, "depthMapflash"), 1);
+	glActiveTexture(GL_TEXTURE0+1);
+	glBindTexture(GL_TEXTURE_2D, depthMapflash);
+	//glActiveTexture(GL_TEXTURE0 + 1);
+	//glBindTexture(GL_TEXTURE_2D, depthMaplamp);
+	glUniform1i(glGetUniformLocation(program, "depthMap"), 2);
+	glActiveTexture(GL_TEXTURE0 + 2);
+	glBindTexture(GL_TEXTURE_2D, depthMapsun);
+
 	Core::DrawContext(context);
 
 }
 
-void renderShadowapSun() {
+void drawObjectDepth(Core::RenderContext& RenderContext, glm::mat4 viewProjection, glm::mat4 modelMatrix)
+{
+
+	glUniformMatrix4fv(glGetUniformLocation(programDepth, "viewProjectionMatrix"), 1, GL_FALSE, (float*)&viewProjection);
+	glUniformMatrix4fv(glGetUniformLocation(programDepth, "modelMatrix"), 1, GL_FALSE, (float*)&modelMatrix);
+	Core::DrawContext(RenderContext);
+}
+void renderShadowapSun(GLuint depthMapFBO, glm::mat4 lightVP) {
 	float time = glfwGetTime();
 	glViewport(0, 0, SHADOW_WIDTH, SHADOW_HEIGHT);
 	//uzupelnij o renderowanie glebokosci do tekstury
+	glUseProgram(programDepth);
 
+	//ustawianie przestrzeni rysowania 
+	glViewport(0, 0, SHADOW_WIDTH, SHADOW_HEIGHT);
+	//bindowanie FBO
+	glBindFramebuffer(GL_FRAMEBUFFER, depthMapFBO);
+	//czyszczenie mapy głębokości 
+	glClear(GL_DEPTH_BUFFER_BIT);
+	//ustawianie programu
+	glUseProgram(programDepth);
+
+
+	drawObjectDepth(sphereContext, lightVP, glm::translate(pointlightPos) * glm::scale(glm::vec3(0.1)) * glm::eulerAngleY(time / 3) * glm::translate(glm::vec3(4.f, 0, 0)) * glm::scale(glm::vec3(0.3f)));
+
+	drawObjectDepth(sphereContext,
+		lightVP, glm::translate(pointlightPos) * glm::scale(glm::vec3(0.1)) * glm::eulerAngleY(time / 3) * glm::translate(glm::vec3(4.f, 0, 0)) * glm::eulerAngleY(time) * glm::translate(glm::vec3(1.f, 0, 0)) * glm::scale(glm::vec3(0.1f)));
+
+	drawObjectDepth(models::bedContext, lightVP, glm::mat4());
+	drawObjectDepth(models::chairContext, lightVP, glm::mat4());
+	drawObjectDepth(models::deskContext, lightVP, glm::mat4());
+	drawObjectDepth(models::doorContext, lightVP, glm::mat4());
+	drawObjectDepth(models::drawerContext, lightVP, glm::mat4());
+	drawObjectDepth(models::marbleBustContext, lightVP, glm::mat4());
+	drawObjectDepth(models::materaceContext, lightVP, glm::mat4());
+	drawObjectDepth(models::pencilsContext, lightVP, glm::mat4());
+	drawObjectDepth(models::planeContext, lightVP, glm::mat4());
+	drawObjectDepth(models::roomContext, lightVP, glm::mat4());
+	drawObjectDepth(models::windowContext, lightVP, glm::mat4());
+
+	glm::vec3 spaceshipSide = glm::normalize(glm::cross(spaceshipDir, glm::vec3(0.f, 1.f, 0.f)));
+	glm::vec3 spaceshipUp = glm::normalize(glm::cross(spaceshipSide, spaceshipDir));
+	glm::mat4 specshipCameraRotrationMatrix = glm::mat4({
+		spaceshipSide.x,spaceshipSide.y,spaceshipSide.z,0,
+		spaceshipUp.x,spaceshipUp.y,spaceshipUp.z ,0,
+		-spaceshipDir.x,-spaceshipDir.y,-spaceshipDir.z,0,
+		0.,0.,0.,1.,
+		});
+	drawObjectDepth(shipContext, lightVP,
+		glm::translate(spaceshipPos)* specshipCameraRotrationMatrix* glm::eulerAngleY(glm::pi<float>())* glm::scale(glm::vec3(0.03f)));
 
 
 
@@ -174,8 +258,14 @@ void renderScene(GLFWwindow* window)
 	glClearColor(0.4f, 0.4f, 0.8f, 1.0f);
 	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 	float time = glfwGetTime();
-	updateDeltaTime(time);
+
-	renderShadowapSun();
+	lightVPsun = glm::ortho(-3.f, 2.3f, -1.3f, 3.f, -1.0f, 40.0f) * glm::lookAt(sunPos, sunPos - sunDir, glm::vec3(0, 1, 0));
+	lightVPlamp = createPerspectiveMatrixC(0.5, 30) * glm::lookAt(pointlightPos, glm::vec3(0, -1, 0), glm::vec3(0, 1, 0));
+	lightVPflash = createPerspectiveMatrixC(0.05, 20) * glm::lookAt(spotlightPos, spotlightConeDir, glm::vec3(0, 1, 0));
+
+	renderShadowapSun(depthMapFBOsun, lightVPsun);
+	renderShadowapSun(depthMapFBOlamp, lightVPlamp);
+	renderShadowapSun(depthMapFBOflash, lightVPflash);
 
 	//space lamp
 	glUseProgram(programSun);
@@ -231,11 +321,11 @@ void renderScene(GLFWwindow* window)
 
 
 
-	//test depth buffer
+	////test depth buffer
 	//glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 	//glUseProgram(programTest);
 	//glActiveTexture(GL_TEXTURE0);
-	//glBindTexture(GL_TEXTURE_2D, depthMap);
+	//glBindTexture(GL_TEXTURE_2D, depthMaplamp);
 	//Core::DrawContext(models::testContext);
 
 	glUseProgram(0);
@@ -261,14 +351,74 @@ void loadModelToContext(std::string path, Core::RenderContext& context)
 	context.initFromAssimpMesh(scene->mMeshes[0]);
 }
 
+void initDepthMap()
+{
+	glGenFramebuffers(1, &depthMapFBOsun);
+
+	glGenTextures(1, &depthMapsun);
+	glBindTexture(GL_TEXTURE_2D, depthMapsun);
+	glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT,
+		SHADOW_WIDTH, SHADOW_HEIGHT, 0, GL_DEPTH_COMPONENT, GL_FLOAT, NULL);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+
+	glBindFramebuffer(GL_FRAMEBUFFER, depthMapFBOsun);
+	glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, depthMapsun, 0);
+	glDrawBuffer(GL_NONE);
+	glReadBuffer(GL_NONE);
+	glBindFramebuffer(GL_FRAMEBUFFER, 0);
+
+
+
+	glGenFramebuffers(1, &depthMapFBOlamp);
+
+	glGenTextures(1, &depthMaplamp);
+	glBindTexture(GL_TEXTURE_2D, depthMaplamp);
+	glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT,
+		SHADOW_WIDTH, SHADOW_HEIGHT, 0, GL_DEPTH_COMPONENT, GL_FLOAT, NULL);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+
+	glBindFramebuffer(GL_FRAMEBUFFER, depthMapFBOlamp);
+	glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, depthMaplamp, 0);
+	glDrawBuffer(GL_NONE);
+	glReadBuffer(GL_NONE);
+	glBindFramebuffer(GL_FRAMEBUFFER, 0);
+
+
+
+	glGenFramebuffers(1, &depthMapFBOflash);
+
+	glGenTextures(1, &depthMapflash);
+	glBindTexture(GL_TEXTURE_2D, depthMapflash);
+	glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT,
+		SHADOW_WIDTH, SHADOW_HEIGHT, 0, GL_DEPTH_COMPONENT, GL_FLOAT, NULL);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+
+	glBindFramebuffer(GL_FRAMEBUFFER, depthMapFBOflash);
+	glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, depthMapflash, 0);
+	glDrawBuffer(GL_NONE);
+	glReadBuffer(GL_NONE);
+	glBindFramebuffer(GL_FRAMEBUFFER, 0);
+}
+
 void init(GLFWwindow* window)
 {
 	glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
+	initDepthMap();
 
 	glEnable(GL_DEPTH_TEST);
 	program = shaderLoader.CreateProgram("shaders/shader_9_1.vert", "shaders/shader_9_1.frag");
 	programTest = shaderLoader.CreateProgram("shaders/test.vert", "shaders/test.frag");
 	programSun = shaderLoader.CreateProgram("shaders/shader_8_sun.vert", "shaders/shader_8_sun.frag");
+	programDepth = shaderLoader.CreateProgram("shaders/programDepth.vert", "shaders/programDepth.frag");
 
 	loadModelToContext("./models/sphere.obj", sphereContext);
 	loadModelToContext("./models/spaceship.obj", shipContext);
@@ -301,8 +451,8 @@ void processInput(GLFWwindow* window)
 {
 	glm::vec3 spaceshipSide = glm::normalize(glm::cross(spaceshipDir, glm::vec3(0.f,1.f,0.f)));
 	glm::vec3 spaceshipUp = glm::vec3(0.f, 1.f, 0.f);
-	float angleSpeed = 0.05f * deltaTime * 60;
+	float angleSpeed = 0.005f;
-	float moveSpeed = 0.05f * deltaTime * 60;
+	float moveSpeed = 0.005f;
 	if (glfwGetKey(window, GLFW_KEY_ESCAPE) == GLFW_PRESS) {
 		glfwSetWindowShouldClose(window, true);
 	}
@@ -327,9 +477,9 @@ void processInput(GLFWwindow* window)
 	cameraDir = spaceshipDir;
 
 	if (glfwGetKey(window, GLFW_KEY_1) == GLFW_PRESS)
-		exposition -= 0.05;
+		exposition -= 0.005;
 	if (glfwGetKey(window, GLFW_KEY_2) == GLFW_PRESS)
-		exposition += 0.05;
+		exposition += 0.005;
 
 	if (glfwGetKey(window, GLFW_KEY_3) == GLFW_PRESS) {
 		printf("spaceshipPos = glm::vec3(%ff, %ff, %ff);\n", spaceshipPos.x, spaceshipPos.y, spaceshipPos.z);