Findings:

• Illumination riddle: River
• Blackpool Illuminations
• ILLUMINATIONS (user)
• Dark Stars and Other Illuminations
• Global Illumination
• Phong illumination model
• illumination equation
• global illumination model
• Illuminations
• Illumination riddle: Grass
• Peter Anspach : Illumination
• Illumination riddle: Wheel
• Silent Illumination
• Diffuse
• Illumination riddle: Coin-toss
• Illumination riddle: Bubble
• Illumination
• These tender circumstances diffuse a dawn of serenity over the soul
• diffuse reflection
• How I then tried to diffuse the Theory of Three Dimensions by other means, and of the result
• Diffused

If you Log in you could create a "diffuse illumination" node. If you don't already have an account, you can register here.