Just wondered if anyone else had experienced this issue.
However they don't and the reason for this is due to the fountain steps being evenly spaced between the "sides of the rectangle", rather than "between colours".
This is problematic for me since if I want a black to white transition in the first 10% of the fountain, it will look really "bandy". The only way I can see of working around this issue is to create independent rectangles and fill them independently.
It would be great if there was an option to chose to have "steps between colours", in addition to the "overall steps".
(Also how do you remove a "node" on the fountain fill? you used to be able to select and delete!)
... I can use the interactive fill tool on a two colour fountain fill to set the fill correctly for a single colour transition obviously buy tweaking the offsets. However I have a need to go:
so still end up having to create two rectangles...
There are two special options when printing to a postscript device :
But ...
They really do need to work with custom and non-linear blends too, but it would need somebody with a high resolution postscript imagesetter to test whether the steps are optimised separately for each section.
PDF creation also needs similar options.
Thanks!
Actually I'm not printing... I'm creating digital graphics (pure bitmaps) for demo images on flexible electrophoretic and OLED displays... a little unusual I know, but the same requirement would be for anyone creating images for the web...
Feature request you think?
In principle, it ought to be possible to optimise blends even for screen display.
You are presumably outputting in RGB so there is a maximum of 256 levels possible. If you have a tint going from 20 to 180 the optimum number of intermediate steps is presumably 159.
The problem comes if you have 159 steps in the R value, 38 steps in the G value and 98 steps in the B value. You would in theory need to render each separately with the optimum steps for each colour to get the best blend. It would take a little longer, but the results would probably be worthwhile,
Hi, yes 8 bits per channel. However if I want to go from white to black to white smoothly I need 512 steps, not 256. Otherwise I need to create the fills in two different objects independently - which I guess defeats the point of the multiple colours in a fountain fill...
Will Reeves said:I need 512 steps, not 256.
How do you get 512 steps in an RGB file ? Or is there some other file type that these devices use?
Assuming you are still limited to RGB a shallow blend could probably be improved by creating half-steps (eg by settiing alternate pixels to levels 37 and 38) and for very shallow blends you might even manage quarter steps or better.
But certainly, the optimum steps need to be calculated separately for each segment of a custom blend.
256 steps from black to white. then another 256 steps from white to black. if you have a fountain fill from white to black to white you need 512 steps. Note the distinction between "steps" and colours. If it were "colours" then indeed I wouldn't have a problem in this particular instance. (although you would if you wanted to go from black to red to white to yellow of course, then you'd need 256 "steps" for each transition ie. 768.
Technically, it is possible to deal with imagery that has greater than 8 bits per channel (most camera raw for example) but that's beyond the scope of this discussion...