Point light shadows for the first point light does something. Seems pretty broken.

Shader/phong.fsh

@@ -13,6 +13,7 @@ uniform sampler2D uTexture;
 uniform sampler2DShadow shadowMap_near;
 uniform sampler2DShadow shadowMap_middle;
 uniform sampler2DShadow shadowMap_far;
+uniform samplerCubeShadow shadowMap_cube;
 uniform vec3 ambientColor;
 uniform float ambientFactor;
 uniform float diffuseFactor;
@@ -49,7 +50,7 @@ vec2 poissonDisk[16] = vec2[](
    vec2( 0.14383161, -0.14100790 )
 );
 
-float sampleShadow(sampler2DShadow shadowMap, vec4 shadowCoord) {
+float sampleDirectionalShadow(sampler2DShadow shadowMap, vec4 shadowCoord) {
     float visibility = 1.0;
     float bias = 0.001*tan(acos(clamp(dot(vNormal, -directionalLightVector), 0.0, 1.0)));
     bias = clamp(bias, 0.0, 0.01);
@@ -68,6 +69,11 @@ float sampleShadow(sampler2DShadow shadowMap, vec4 shadowCoord) {
     return visibility;
 }
 
+float samplePointShadow(samplerCubeShadow shadowMap, vec3 lightDirection) {
+    float bias = 0.005;
+    return texture(shadowMap, vec4(lightDirection.xyz , length(lightDirection) - bias));
+}
+
 float distanceToBorder(vec2 vector) {
     float xDistance = min(vector.x, 1.0-vector.x);
     float yDistance = min(vector.y, 1.0-vector.y);
@@ -92,8 +98,10 @@ void main()
     }
 
     // point lights
+    float visibility = 1.0;
     for(int i = 0; i<lightCount; i++) {
-        float distance = distance(lightSources[i], vec3(fragPosition));
+        vec3 lightDirection = vec3(fragPosition) - lightSources[i];
+        float distance = length(lightDirection);
         // only take lights into account with meaningful contribution
         if (distance > 0.001f) {
             vec3 lightVector = normalize(lightSources[i]-vec3(fragPosition));
@@ -103,21 +111,21 @@ void main()
             vec3 cameraVector = normalize(camera - vec3(fragPosition));
             specularColor += clamp(pow((dot((cameraVector+lightVector),normalize(vNormal))/(length(cameraVector+lightVector)*length(normalize(vNormal)))),shininess), 0.0, 1.0)
             *specularFactor*intensity*lightColors[i];
+            visibility = samplePointShadow(shadowMap_cube, lightDirection);
         }
     }
 
     // shadows 
-    float visibility = 1.0;
     if (distanceToBorder(shadowCoord_middle.xy) <= 0.5 && distanceToBorder(shadowCoord_middle.xy) > 0.0) {
         if (distanceToBorder(shadowCoord_near.xy) <= 0.5 && distanceToBorder(shadowCoord_near.xy) > 0.0) {
-                visibility = sampleShadow(shadowMap_near, shadowCoord_near);
+                visibility *= sampleDirectionalShadow(shadowMap_near, shadowCoord_near);
         }
         else {
-            visibility = sampleShadow(shadowMap_middle, shadowCoord_middle);
+            visibility *= sampleDirectionalShadow(shadowMap_middle, shadowCoord_middle);
         }
     }
     else {
-        visibility = sampleShadow(shadowMap_far, shadowCoord_far);
+        visibility *= sampleDirectionalShadow(shadowMap_far, shadowCoord_far);
     }
 
     specularColor *= visibility;

graphics.cc

@@ -70,8 +70,10 @@ void Graphics::init(Level* level) {
     framebuffer_far->setDepthTexture(depthTexture_far);
     framebuffer_far->validate();
 
-    depth_cubeMaps = std::vector<ACGL::OpenGL::SharedTextureCubeMap>(level->getLights()->size());
+    /*depth_cubeMaps = std::vector<ACGL::OpenGL::SharedTextureCubeMap>(level->getLights()->size());
-    for (unsigned int i = 0; i<depth_cubeMaps.size(); i++) {
+    for (unsigned int i = 0; i<depth_cubeMaps.size(); i++) {*/
+    depth_cubeMaps = std::vector<ACGL::OpenGL::SharedTextureCubeMap>(1);
+    for (unsigned int i = 0; i<1; i++) {
         depth_cubeMaps.at(i) = SharedTextureCubeMap(new TextureCubeMap(glm::vec2(cube_size, cube_size), GL_DEPTH_COMPONENT16));
         depth_cubeMaps.at(i)->setMinFilter(GL_NEAREST);
         depth_cubeMaps.at(i)->setMagFilter(GL_NEAREST);
@@ -102,14 +104,14 @@ void Graphics::render()
         glm::vec3(0.0f, -1.0f, 0.0f), glm::vec3(0.0f, 0.0f, 1.0f), glm::vec3(0.0f, 0.0f, -1.0f)};
 
     framebuffer_cube->bind();
-    for (unsigned int i_pointlight = 0; i_pointlight<level->getLights()->size(); i_pointlight++) {
+    //for (unsigned int i_pointlight = 0; i_pointlight<level->getLights()->size(); i_pointlight++) {
+    for (unsigned int i_pointlight = 0; i_pointlight<1; i_pointlight++) {
         // render each side of the cube
         for (int i_face = 0; i_face<6; i_face++) {
             glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_CUBE_MAP_POSITIVE_X + i_face, depth_cubeMaps.at(i_pointlight)->getObjectName(), 0);
             glClear(GL_DEPTH_BUFFER_BIT);
             glm::mat4 depthViewProjectionMatrix_face = depthProjectionMatrix_pointlights * glm::lookAt(level->getLights()->at(i_pointlight).getPosition(),
                 level->getLights()->at(i_pointlight).getPosition() + looking_directions[i_face], glm::vec3(0.0f, 1.0f, 0.0f));
-            depthShader->setUniform("viewProjectionMatrix", depthViewProjectionMatrix_face);
             level->render(depthShader, false, &depthViewProjectionMatrix_face);
             if (!framebuffer_cube->isFrameBufferObjectComplete()) {
                 printf("Framebuffer incomplete, unknown error occured during shadow generation!\n");
@@ -182,6 +184,8 @@ void Graphics::render()
         }
         glUniform1fv(lightingShader->getUniformLocation("lightIntensities"),
             sizeof(lightIntensities),  (GLfloat*) lightIntensities);
+
+        lightingShader->setTexture("shadowMap_cube", depth_cubeMaps.at(0), 4);
     }
     // set directional Light
     if(level->getDirectionalLight()) {