planets.txt

material sky_material(
    diffuse(uniform(<0, 0, 0>)),
    uniform(<1.0, 0.9, 0.5>) 
)

material ground_material(
    diffuse(checkered(<0.01, 0.01, 0.01>,
                      <0.99, 0.99, 0.99>, 2)),
    uniform(<0.1, 0.1, 0.1>)
)

material earth_material(
    diffuse(image("../examples/texture/earth.pfm")),
    image("../examples/texture/earth.pfm")
)

material moon_material(
    diffuse(image("../examples/texture/moon.pfm")),
    image("../examples/texture/moon.pfm")
)

material mars_material(
    diffuse(image("../examples/texture/mars.pfm")),
    image("../examples/texture/mars.pfm")
)

material mercury_material(
    diffuse(image("../examples/texture/mercury.pfm")),
    image("../examples/texture/mercury.pfm")
)

material venus_material(
    diffuse(image("../examples/texture/venus.pfm")),
    image("../examples/texture/venus.pfm")
)

material jupiter_material(
    diffuse(image("../examples/texture/jupiter.pfm")),
    image("../examples/texture/jupiter.pfm")
)
# You can find other Solar System textures here: https://www.solarsystemscope.com/textures/ 


# background
plane(ground_material, identity)
sphere(sky_material, translation([0, 0, 0.4]) * scaling([200, 200, 200]))

# planets (which dimensions are in scale) 
sphere(mercury_material, translation([-4.5, 0, 0.38299]) * scaling([0.38299, 0.38299, 0.38299]))
sphere(venus_material, translation([-2.2, 0, 0.94993]) * scaling([0.94993, 0.94993, 0.94993]))
sphere(earth_material, translation([0.5, 0, 1]))
sphere(moon_material, translation([1.75, 0, 0.27266]) * scaling([0.27266, 0.27266, 0.27266]))
sphere(mars_material, translation([3.8, 0, 0.53202]) * scaling([0.53202, 0.53202, 0.53202]) )
sphere(jupiter_material, translation([0, 10, 10.97347]) * scaling([10.97347, 10.97347, 10.97347]) )


float angle(90)
float aspect_ratio(1.7777)
float screen_distance(2)

camera(perspective, rotation_x(-20) * rotation_z(angle) * translation([-5, 0, 3]) , aspect_ratio, screen_distance)