Why Gray Render

Hello,
This time I making a fluid pooring down steps.

I dont understand why render become gray, when I press render/Anim

Why domain disapherd after I bake ??

Can you help me out

Thank you in advance

Attachments

StepBlender.blend (262 KB)


The domain disappears because it is the domain which becomes the fluid in the simulation not the fluid object itself. The fluid object in effect just tells the domain object the fluid starting state. The properties of the fluid simulation are all properties of the domain object. In the simulation, the fluid colour and materials are applied to the domain object not the fluid object.

Richard

Richard, thanks for reply. I solved the problem with the gray render. I delated front side of the cube infront of the camera