A graphical mod for Sins of a Solar Empire: Rebellion that brings new PBR shaders and updates the look of the game.
One of the new custom skyboxes included in Sins: Remastered v1.00.
Each skybox is generated from a 3D scene of volumentric nebula clouds and then baked down to panoramic textures for color, bloom and distance from the camera data used to create the parallax depth of field effect for the new shaders. Additional procefural mid-field parallax-enabled stars are then added by the shader to create the final in-game scene.
That is gorgeous.