How to create Arnold light fog effect?

Renderwow - 1/3/19 16:22

1.There is a room simulated by pcube in the scene, drilling holes to simulate windows, Material is aistandardsurface1.

How to create Arnold light fog effect?

How to create Arnold light fog effect?

Create spotlight light, Adjust the position with exposure set to 15:

How to create Arnold light fog effect?

Rendering effect:

How to create Arnold light fog effect?

3. In render seting, under Environment, click the menu to the right of Atmosphere, choose to create aiAtmosphereVolume.

How to create Arnold light fog effect?

4.Set the value of aiAtmosphereVolume, density was set at 0.1, the color value is set as shown in the figure below。

How to create Arnold light fog effect?

Set the attenuation to 0.2:

How to create Arnold light fog effect?

Render results are as follows:

How to create Arnold light fog effect?

5. In the same scenario, set the volume of visibility of the light to 0, this lamp will not have the effect of light volume.

How to create Arnold light fog effect?