I have a very naive algorithm to generate an hsv c...

# compose

[eygraber]

I have a very naive algorithm to generate an hsv color palette by using a nested loop to walk through each pixel, calculate the correct color for it, and then draw it to a canvas (using Painter), and then creating an Image for it.

The problem is that it doesn't scale well for sizes larger than a few hundred pixels.

Is there a more performant API I can use in common compose, or would I have to delegate to the platforms (Android and desktop in this case)?

[Louis Pullen-Freilich [G]]

It's a lot more efficient to use a gradient shader, like here: https://cs.android.com/androidx/platform/frameworks/support/+/androidx-main:compose/[…]java/androidx/compose/material/demos/ColorPickerDemo.kt;l=274

[eygraber]

Excellent, thank you. I wasn't aware you could work with an ImageBitmap that way.