Got phong shading working.

Shader/HelloWorld.fsh

@@ -6,6 +6,7 @@ in vec2 vTexCoord;
 out vec4 oColor;
 
 uniform sampler2D uTexture;
+uniform int lightCount;
 uniform vec3 lightSources[128];
 uniform vec3 ambientIntensity;
 uniform float ambientFactor;
@@ -15,7 +16,10 @@ uniform float diffuseFactor;
 void main()
 {   
     vec3 ambientColor = ambientFactor * ambientIntensity;
-    vec3 diffuseColor = dot(normalize(vNormal),vec3(0,0,1))*diffuseFactor*diffuseIntensity;
+    vec3 diffuseColor = vec3(0.0, 0.0, 0.0);
+    for(int i = 0; i<lightCount; i++) {
+        diffuseColor += dot(normalize(vNormal), normalize(lightSources[i]))*diffuseFactor*diffuseIntensity;
+    }
     vec3 finalColor = diffuseColor + ambientColor;
 
     vec3 texture = texture(uTexture, vTexCoord).rgb;

graphics.cc

@@ -51,20 +51,20 @@ void draw( float runTime )
     //set lighting parameters
     shader.getReference()->setUniform("ambientIntensity", level.getAmbientLight());
     shader.getReference()->setUniform("ambientFactor", 1.0f);
-    shader.getReference()->setUniform("diffuseIntensity", glm::vec3(1.0f, 1.0f, 1.0f));
-    shader.getReference()->setUniform("diffuseFactor", 1.0f);
+    if (level.getLights().size() > 0) {
+        shader.getReference()->setUniform("diffuseIntensity", glm::vec3(1.0f, 1.0f, 1.0f));
+        shader.getReference()->setUniform("diffuseFactor", 1.0f);
+        shader.getReference()->setUniform("lightCount", (int) level.getLights().size());
 
-    
-    // TODO look into doing this less often 
-    // Build light position array
-    glm::vec3 lights[level.getLights().size()];
-    for(int i = 0; i<level.getLights().size(); i++) {
-        lights[i] = level.getLights()[i].getPosition();
+        // TODO look into doing this less often
+        // Build light position array
+        glm::vec3 lights[level.getLights().size()];
+        for(int i = 0; i<level.getLights().size(); i++) {
+            lights[i] = level.getLights()[i].getPosition();
+        }
+        glUniform3fv(shader.getReference()->getUniformLocation("lightSources"), sizeof(lights),  (GLfloat*) lights);
     }
 
-    shader.getReference()->setUniform("lightSources", lights);
-    //glUniform1fv(glGetUniformLocation(shader.getReference(), "lightSources", 128, lights);
-
     // render the level(currently only a bunny):
     level.render();
 }

level.cc

@@ -23,6 +23,10 @@ void Level::load(Shader shader) {
     objects.push_back(object);
     //set lighting parameters
     ambientLight = glm::vec3(0.1f, 0.1f, 0.1f);
+    Light light = Light(glm::vec3(1.0f, 0.0f, 0.0f), glm::vec3(0.0f, 0.0f, 0.0f), glm::vec3(0.0f, 0.0f, 1.0f), 1.0f);
+    lights.push_back(light);
+    Light light2 = Light(glm::vec3(0.0f, 0.0f, 1.0f), glm::vec3(0.0f, 0.0f, 0.0f), glm::vec3(1.0f, 0.0f, 0.0f), 1.0f);
+    lights.push_back(light2);
 }
 
 void Level::render() {