fixed inputs, added phong lighting

shaders/world.frag.glsl

@@ -11,6 +11,8 @@ in vec3 normal;
 
 out vec4 outColor;
 
+const vec3 lightDir = normalize(vec3(0.5, -1, -1));
+
 vec3 phongLighting(in vec3 kd, in vec3 ks, in float ns, in vec3 color, in vec3 normal, in vec3 lightDir, in vec3 halfVec){
     float diffuseComponent = max(dot(normal, lightDir), 0);
     float specularComponent = max(dot(halfVec, normal), 0);
@@ -19,7 +21,7 @@ vec3 phongLighting(in vec3 kd, in vec3 ks, in float ns, in vec3 color, in vec3 n
 
 void main()
 {
-    vec2 worldCoord = texCoord*worldSize + camera.xy;
+    vec2 worldCoord = texCoord*worldSize + camera.xy*worldSize.y/screenSize;
     ivec2 nbRevolutions = ivec2(floor(worldCoord / worldSize));
     if(abs(mod(nbRevolutions.y, 2)) > 0.5)
     {
@@ -28,6 +30,7 @@ void main()
     }
     worldCoord = worldCoord - nbRevolutions*worldSize;
     vec3 texColor = texelFetch(colorMap, ivec2(worldCoord)).xyz;
-    float pseudoLighting = 0.4+dot(normal, normalize(vec3(-0.5))); // TODO : use phong lighting
-    outColor = vec4(texColor*pseudoLighting, 1.0);
+
+    vec3 lighting = phongLighting(texColor, vec3(0.5), 10, vec3(1), normal, lightDir, normalize(lightDir+vec3(0, 0, -1)));
+    outColor = vec4(texColor*0.2 + 0.8*lighting, 1.0);
 }

shaders/world.vert.glsl

@@ -12,7 +12,7 @@ out vec3 normal;
 
 void main(void)
 {
-    texCoord = inTexCoord.xy;
+    texCoord = vec2(inTexCoord.x/2, inTexCoord.y);
     normal = inNormal.xyz;
     gl_Position = mvp * vec4(inPosition*camera.z, 1.0);
 }

src/pixelpipeline.cpp

@@ -53,7 +53,7 @@ public:
         float clockAngle = atan2(relUV.y, relUV.x);
         float depthAngle = glm::length(relUV)*3.1416f*MAGIC_RATIO;
         float r = sin(depthAngle);
-        return glm::vec3(r*cos(clockAngle), r*sin(clockAngle), cos(depthAngle));
+        return glm::vec3(r*cos(clockAngle), r*sin(clockAngle), cos(depthAngle)-1);
     }
 };
 

src/pixelpipeline.h

@@ -41,7 +41,7 @@ public:
     virtual void renderGL(Scene *scene);
     virtual void resizeGL(int w, int h);
     
-    void cameraMove(int x, int y) { m_camera.x -= x; m_camera.y += y; }
+    void cameraMove(int x, int y) { m_camera.x -= x/m_camera.z; m_camera.y += y/m_camera.z; }
     void cameraZoom(int nbScrolls);
 };