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dmstraker

Gradient map add point by click - not picking up underlying colour

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  1. Gradient map
  2. Black on left, white on right
  3. Click on line
  4. Colour added is not that from directly beneath point

This is pronounced when adding points in left half.

It seems that rather adding points from 0 to 255, it is adding points 128 to 255.


Dave Straker

Cameras: Sony A7R2, RX100V

Computers: Win10: Chillblast Photo with i7-3770 + 16Gb RAM + Philips 40in 4K; Surface Pro 4 i5

Favourite word: Aha. For me and for others.

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I am not seeing that. It seems to be picking up the color underneath it as far as I can tell 

I am noticing though (not to hijack your thread) that black does not just reveal the  layer below but darkens it. I will start another thread after and if I determine that the error is on my part


Affinity Designer 1.6.5.135 & beta 1.7.0.293 Affinity Photo 1.6.5,.135 beta  1.7.0.293 Affinity Publisher 1.7.0.293

Windows 10 Pro 64-bit 1709

CPU Intel Core i7 4770 @ 3.40GHz Haswell 22nm Technology

RAM 32.0 GB Dual-Channel DDR3 @ 798 MHz (11-11-11-28)

Motherboard Gigabyte Technology Co. Ltd. B85M-D3H (SOCKET 0)

Graphics Intel HD Graphics 4600 (Gigabyte)

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14 hours ago, Rick G said:

I am not seeing that. It seems to be picking up the color underneath it as far as I can tell

Thanks for the check, Rick, but I'm still getting it. I tried with a completely new, empty document and saw the same effect. To see exactly what colour is where, I drag from the colour picker on the right-hand Colour tab.


Dave Straker

Cameras: Sony A7R2, RX100V

Computers: Win10: Chillblast Photo with i7-3770 + 16Gb RAM + Philips 40in 4K; Surface Pro 4 i5

Favourite word: Aha. For me and for others.

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Morning Dave,

Can you attach a screenshot and tell me what document colour format you're using?

The Colour Picker suggests the values are correct however, I might be misunderstanding what you're doing.

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Here you go, Chris. I made a video for you.

 

... and while you're still drinking that cup of coffee ;) could you check out this - I really do think it's a bug.

 


Dave Straker

Cameras: Sony A7R2, RX100V

Computers: Win10: Chillblast Photo with i7-3770 + 16Gb RAM + Philips 40in 4K; Surface Pro 4 i5

Favourite word: Aha. For me and for others.

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Hi Dave,

Thank you for the video! It looks like you're using a printer profile 'Stylus Photo 1400 1410' to create the document. Could you try again using sRGB IEC61966-2.1 and let me know if this still happens?

I'm not entirely sure why the printer profile would still make Affinity pick a different value to what's outside the node so I'll need to look into that bit.

Cheers :) 

P.s. I'll look at the linked thread now. 

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Hi Chris

No worries. Yes, looks like printer profile for new documents is based on an old printer I had. And as you say, it would be odd if this were causing the problem. Anyway, video below. I also tried it with the default red to blue - dragged out the green middle and clicked there. Even more obvious this way (I've tagged a short video on the end showing this).

 

 


Dave Straker

Cameras: Sony A7R2, RX100V

Computers: Win10: Chillblast Photo with i7-3770 + 16Gb RAM + Philips 40in 4K; Surface Pro 4 i5

Favourite word: Aha. For me and for others.

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