Huge stuff. camera, input manager (mouse + keyboard), can move around scene now

resources/backpack/backpack.mtl

@@ -10,7 +10,7 @@ Ke 0.0 0.0 0.0
 Ni 1.450000
 d 1.000000
 illum 2
-map_Kd backpack/diffuse.jpg
-map_Bump backpack/normal.png
-map_Ks backpack/specular.jpg
+map_Kd diffuse.jpg
+map_Bump normal.png
+map_Ks specular.jpg
 

resources/standard.frag

@@ -6,7 +6,8 @@ in vec3 Position;
 in vec2 TexCoord;
 in vec3 Normal;
 
-uniform sampler2D diffuse;
+uniform sampler2D diffuseMap;
+uniform sampler2D specularMap;
 
 uniform vec3 viewPosition;
 
@@ -15,22 +16,30 @@ uniform vec3 phongDiffuse;
 uniform vec3 phongSpecular;
 uniform float phongShininess;
 
+uniform vec3 lightPosition;
 uniform vec3 lightDirection;
 uniform vec3 lightAmbient;
 uniform vec3 lightDiffuse;
 uniform vec3 lightSpecular;
 
 void main() {
-    vec4 diffuseColor = texture(diffuse, TexCoord);
+    vec3 diffuseColor = texture(diffuseMap, TexCoord).rgb;
+    vec3 specularColor = texture(specularMap, TexCoord).rgb;
 
     vec3 norm = normalize(Normal);
     vec3 lightDir = normalize(-lightDirection);
+    vec3 viewDir = normalize(viewPosition - Position);
 
-    vec3 ambient = phongAmbient * vec3(diffuseColor);
+    vec3 ambient = lightAmbient * (diffuseColor * phongAmbient);
 
     float diffImpact = max(dot(norm, lightDir), 0.0);
-    vec3 diffuse = (phongDiffuse * vec3(diffuseColor)) * diffImpact;
+    vec3 diffuse = lightDiffuse * (diffImpact * diffuseColor * phongDiffuse);
 
-    vec3 result = ambient + diffuse;
+    vec3 reflectDir = reflect(-lightDir, norm);
+    float effectiveShininess = max(phongShininess, 1.0);
+    float spec = pow(max(dot(viewDir, reflectDir), 0.0), effectiveShininess);
+    vec3 specular = lightSpecular * (spec * specularColor * phongSpecular);
+
+    vec3 result = ambient + diffuse + specular;
     FragColor = vec4(result, 1.0);
 }