After post-processing
Breakdown:
• The scene have 3 objects that have volumetric material, one of the color is
orange and other are of blue color.
• Withour fog.
• There are 3 layer of clouds(3 spheres) having different alpha value.
• Background objects also have outline, that was created using solidify modifier
• Outline created using solidify modifier with normal flip set to checked and
material offset to outline material index.
• Outline material is simple black emissive material with backface culling set
to checked
Viewport:
