William F Pokorny <ano### [at] anonymousorg> wrote:

> Anyhow. Color images work as HF input.

But of course.

> However, in newer versions of
> POV-Ray I'd recommend never using color inputs directly in a grey scale
> application. Too many ways for it to go astray of intent.

So, do we just use image_pattern/pigment_pattern and the color to grayscale
conversion is different there?

Or do we "roll our own" color conversion function and daisy-chain that into the
hf?

I suppose the answer is always, "It depends".

How many color to grayscale conversion equations do you currently have in povr?

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