update

assets/shaders/phong-solid.vertex.glsl

@@ -8,19 +8,13 @@ uniform mat4 view;
 uniform mat4 projection;
 uniform vec3 light_pos;
 
-out vec3 normal_cameraspace;
-out vec3 light_direction_cameraspace;
-out vec3 eye_direction_cameraspace;
-out vec3 position_worldspace;
+out vec3 normal;
+out vec3 frag_position;
 
 void main() {
-    vec3 vertex_cameraspace = (view * model * vec4(a_xyz, 1)).xyz;
-    vec3 light_pos_cameraspace = (view * vec4(light_pos, 1)).xyz;
+    vec4 a_xyz_vec4 = vec4(a_xyz, 1);
 
-    normal_cameraspace = (transpose(inverse(view * model)) * vec4(a_normal, 0)).xyz;
-    light_direction_cameraspace = light_pos_cameraspace + eye_direction_cameraspace;
-    eye_direction_cameraspace = vec3(0, 0, 0) - vertex_cameraspace;
-    position_worldspace = (model * vec4(a_xyz, 1)).xyz;
-
-    gl_Position = projection * view * model * vec4(a_xyz, 1);
+    frag_position = (model * a_xyz_vec4).xyz;
+    normal = mat3(transpose(inverse(model))) * a_normal;
+    gl_Position = projection * view * model * a_xyz_vec4;
 }