How do I fix a screen flashing error?

First of all, please understand that I’m not an English speaker and my writing is weird.

It might be an easy question because I just learned to touch designer, but I can’t find the answer anywhere, so I’m asking. I made it like the file below because I wanted to make it look like waves, but I want to get rid of the color on the screen that keeps flashing. I don’t know what’s wrong, can you help me? Thanks

NewProject.toe (6.6 KB)

Hi @huw,

The flickering comes from the Environment Map being set to the “bg” texture. The Render TOP has a little warning telling you that a MAT is Normal Mapping but the SOP being used does not have Tangent attributes.

To fix this either remove the Environment Map from the material, or add a Attribute Create SOP to the Torus in the geometry, enable the “Compute Tangents” parameter and switch the Display and Render flag from the Torus to the Attribute Create.

There is a good overview of SOPs and rendering in our curriculum at learn.derivative.ca which you might find useful to learn more on this topic:

cheers
Markus

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Sorry for the delay in checking! I solved it thanks to you, thank you.