Finished Forward Shading option as a means of FPS comparison

BaseGLProject/DSGeometryPass.frag

@@ -12,8 +12,6 @@ uniform sampler2D tex;
 void main()
 { 	
 	gPosition = FragPos;
-	//
-    //gPosition = normalize(abs(FragPos));
     gNormal = normalize(Normal);
     gAlbedoSpec.rgb = texture(tex, TexCoords).rgb;
 	gAlbedoSpec.a = 1;

BaseGLProject/DSLightPass.frag

@@ -29,12 +29,13 @@ void main()
    vec3 viewDir = normalize(view_pos - FragPos);
    for (int i = 0; i < NLights; ++i)
    {
-// diffuse
-        vec3 lightDir = normalize(lights[i].Position - FragPos);
-        vec3 diffuse = max(dot(Normal, lightDir), 0.0) * Albedo * lights[i].Color;
+		vec3 L = normalize(lights[i].Position.xyz - FragPos);
+		vec3 V = normalize(view_pos - FragPos);
+		vec3 H = normalize(V + L);
+        
+        vec3 diffuse = max(dot(Normal, L), 0.0) * Albedo * lights[i].Color;
         // specular        
-        vec3 halfwayDir = normalize(lightDir + viewDir);  
-        float spec = pow(max(dot(Normal, halfwayDir), 0.0), 16.0);
+        float spec = pow(max(dot(Normal, H), 0.0), 16.0);
         vec3 specular = lights[i].Color * spec * Specular;        
         lighting += diffuse + specular;   
     }

BaseGLProject/Models/Mesh.cpp

@@ -370,14 +370,11 @@ void Mesh::draw(SceneContext &ctx) {
 		// Setting the space matrixes uniques to the object
 		ctx.modelMatrix = model.getMatrix();				
 		ctx.mvpMatrix = ctx.projectionMatrix * ctx.viewMatrix * ctx.modelMatrix;		
-		ctx.modelViewMatrix = ctx.viewMatrix * ctx.modelMatrix;		
+		//ctx.modelViewMatrix = ctx.viewMatrix * ctx.modelMatrix;		
 		ctx.normalMatrix = glm::transpose(glm::inverse(glm::mat3(ctx.modelMatrix)));
 
 		shader->addUniform("mvp", ctx.mvpMatrix);
 		shader->addUniform("NormalMatrix", ctx.normalMatrix);					
-		if (ctx.renderMode == FORWARD_LIGHT)
-			shader->addUniform("ModelViewMatrix", ctx.modelViewMatrix);
-		else
 		shader->addUniform("ModelMatrix", ctx.modelMatrix);
 
 		glActiveTexture(GL_TEXTURE0);

BaseGLProject/Multipass.cpp

@@ -79,6 +79,9 @@ void Multipass::gBufferSetup(SceneContext &scnctx, std::map<std::string, Mesh *>
 
 void Multipass::recomputeDeferredLights(SceneContext &scnctx)
 {
+	if (scnctx.renderMode != DEFERRED_LIGHT)
+		return;
+
 	int i = 0;
 	for (auto light : scnctx.lights)
 	{

BaseGLProject/MyGLWindow.cpp

@@ -249,7 +249,19 @@ void MyGlWindow::drawForwardLight()
 	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
 	for (auto it = meshes.begin(); it != meshes.end(); it++)
+	{
+		(*it).second->shader->addUniform("view_pos", scnctx.camPos);
+		int i = 0;
+		for (auto light : scnctx.lights)
+		{
+			(*it).second->shader->addUniform("lights[" + std::to_string(i) + "].Position", glm::vec3(light.location));
+			(*it).second->shader->addUniform("lights[" + std::to_string(i) + "].Color", light.intensity);
+			i++;
+		}
+
+		(*it).second->shader->addUniform("NLights", (int)scnctx.lights.size());
 		(*it).second->draw(scnctx);
+	}
 
 }
 

BaseGLProject/Source.cpp

@@ -288,13 +288,13 @@ int loop(GLFWwindow *window)
 
 			ImGui::ListBox("Lights", &current_light, strings, lights_strs.size());
 			if (ImGui::SliderFloat("Selected light X", &glWin.scnctx.lights[current_light].location.x, -10, 10)
-				&& glWin.scnctx.renderMode != GBUF_DEBUG)
+				&& glWin.scnctx.renderMode == DEFERRED_LIGHT)
 				glWin.multipassManager.recomputeDeferredLights(glWin.scnctx);
 			if (ImGui::SliderFloat("Selected light Y", &glWin.scnctx.lights[current_light].location.y, -10, 10)
-				&& glWin.scnctx.renderMode != GBUF_DEBUG)
+				&& glWin.scnctx.renderMode == DEFERRED_LIGHT)
 				glWin.multipassManager.recomputeDeferredLights(glWin.scnctx);
 			if (ImGui::SliderFloat("Selected light Z", &glWin.scnctx.lights[current_light].location.z, -10, 10)
-				&& glWin.scnctx.renderMode != GBUF_DEBUG)
+				&& glWin.scnctx.renderMode == DEFERRED_LIGHT)
 				glWin.multipassManager.recomputeDeferredLights(glWin.scnctx);
 
 

BaseGLProject/tex_base_light.frag

@@ -3,26 +3,22 @@
 in vec3 f_color;
 out vec4 FragColors;
 
-uniform vec3 Kd;
-uniform vec3 Ka;
-uniform vec3 Ks;
-uniform float Shininess;
-
 struct Light {
-  vec4 Position; 
+  vec3 Position; 
   vec3 Color; 
 };
 
 uniform Light lights[64];
 uniform int NLights;
 
-
 in vec3 fNormal;
 in vec3 pos;
 
 in vec2 texCoord;
 uniform sampler2D tex;
 
+uniform vec3 view_pos;
+
 void main()
 { 
 	vec3 finalColor;
@@ -30,21 +26,21 @@ void main()
 	vec3 specular_sum;
 	vec3 ambient;
 	
-	ambient = Ka * lights[0].Color;
+	vec4 texColor = texture(tex, texCoord);		
+	//Hardcoded ambient
+	ambient = texColor.rgb * 0.1;
 	for (int i = 0; i < NLights; i++) 
 	{   		
 		vec3 L = normalize(lights[i].Position.xyz - pos);
 		vec3 N = fNormal;
-		vec3 V = normalize(-pos);
+		vec3 V = normalize(view_pos - pos);
 		vec3 H = normalize(V + L);
 
-		vec3 diffuse = Kd * lights[i].Color * max(dot(L, N), 0.0);	
-		vec3 specular = Ks * lights[i].Color * pow(max(dot(H, N), 0.0), Shininess);	
+		vec3 diffuse = lights[i].Color * texColor.rgb * max(dot(L, N), 0.0);	
+		vec3 specular = lights[i].Color * pow(max(dot(H, N), 0.0), 16.0) * 0.5;	
 		diffuse_sum += diffuse;
 		specular_sum += specular;
     }
 	
-	vec4 texColor = texture(tex, texCoord);		
-	FragColors = (vec4(diffuse_sum + ambient, 1) * texColor + vec4(specular_sum, 1.0)); 
-	FragColors = texColor + (FragColors * 0.01);
+	FragColors = (vec4(ambient + diffuse_sum + specular_sum, 1)); 	
 }

BaseGLProject/tex_base_light.vert

@@ -7,7 +7,7 @@ layout(location=3) in vec2 v_texmap;
 
 uniform mat4 mvp;
 uniform mat3 NormalMatrix;
-uniform mat4 ModelViewMatrix;
+uniform mat4 ModelMatrix;
 
 out vec3 fNormal;
 out vec3 pos;
@@ -16,9 +16,7 @@ out vec2 texCoord;
 void main(void)
 {
 	fNormal = normalize(NormalMatrix * v_normal);
-	pos = (ModelViewMatrix * vec4(coord3d, 1.0)).xyz;
-	
+	pos = (ModelMatrix * vec4(coord3d, 1.0)).xyz;	
 	texCoord = v_texmap;
-
 	gl_Position = mvp * vec4(coord3d, 1.0f);
 }