Without global illumination
With global illumination
Global illumination is the result of photons being emitted into the scene by each light source. As the photons bounce around the scene and hit objects, they store the color information. Global illumination typically affects most objects in the scene.
For global illumination effects to appear:
Enable global illumination selected in the Options dialog box.
One or more materials must be set to cast global illumination photons.
One or more materials must be set to receive global illumination photons.
A light source must emit global illumination photons. Directional, point, and spot lights can emit global illumination photons.
To render an image with global illumination effects:
Select Enable global illumination on the Illumination tab of the Options dialog box.
Select Cast on the Illumination tab of the Materials Illumination PropertyManager for one or more materials.
Select Receive on the Illumination tab of the Materials Illumination PropertyManager for one or more materials.
Cast and Receive are unavailable if you select All materials cast and receive global illumination by default on the Illumination tab of the Options dialog box. You cannot control the effects on individual materials.
Enable a directional, point, or spot light to emit global illumination photons. From the directional, point, or spot PropertyManager, click PhotoWorks Properties to set:
Energy to determine the total amount of radiated energy from the light.
G photons to determine the distribution of the energy.
Render the image.
Consider a hollow box. Without global illumination, the directional light is unable to illuminate the walls or box inside the hollow box. With global illumination, the inner walls of the hollow box, the floor, and the box inside the hollow box are all visible.
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Without global illumination |
With global illumination |
Back to Illumination Options.