19.0

51Cinema 4D Renderer
Cinema4D will automatically turn on Auto Light in a scene if there are no light objects present. When using Global
Illumination, this automatic function is excluded since it would make the scene much too bright.
Create a sphere (Create/Object/Sphere). Move the sphere along the X-axis a little to the right and a Y-position of 100
until it’s next to the Torus. Copy the sky material (Ctrl + drag into the Material Manager) and switch to the Luminance
channel of the new material. Use the color sliders to create a bright blue. Drag the material onto the sphere.
We now want to use the blue sphere as a light. We don’t want the sphere to be visible, but only to emit its blue color.
You achieve this by using the Compositing tag.
Apply a Compositing tag to the sphere in the Object Manager (Tags/Cinema4D Tags/Compositing). Switch to the
Attribute Manager and deactivate all options except Seen by GI (Global Illumination). Render the scene.