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yuanhao_viva
says

anyone can draw a contorted rainbow by code?im trying curve() to draw the shape,but color cant contorted with shape,so i try matrix but no luck.anyone can help me?

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KurtBilisim
says

Maybe with displacement map filter?

Though if you just need a curved rainbow maybe using radial gradient?

I don’t really understand how a contorted rainbow should look like otherwise.

<— Primary language is not English.

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yuanhao_viva
says

Maybe with displacement map filter?

Though if you just need a curved rainbow maybe using radial gradient?

I don’t really understand how a contorted rainbow should look like otherwise.

<— Primary language is not English.
yeah,just use radial gradient with a little trick then i got what i want. im not quite familiar with the graphics draw.
ps:displacementmap filter,i try a lot,but still dont look good. sorry for my poor english
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