feat: multiple lights kinda shadow support (shader is missing)

src/shaders/simple.vs

@@ -15,7 +15,6 @@ out vec4 fragPosLightSpace;
 uniform mat4 u_model;       // Model matrix: transforms from local space to world space
 uniform mat4 u_view;        // View matrix: transforms from world space to camera space (view space)
 uniform mat4 u_projection;  // Projection matrix: transforms from camera space to clip space
-uniform mat4 u_lightSpace;
 
 void main()
 {
@@ -27,7 +26,7 @@ void main()
 
     TexCoords = texCoord;
 
-    fragPosLightSpace = u_lightSpace * vec4(vertexPos, 1.0);
+    // fragPosLightSpace = u_lightSpace * vec4(vertexPos, 1.0);
 
     gl_Position = u_projection * u_view * vec4(vertexPos, 1.0);
 }