Brushes and Filters on 300dpi CMYK mode

[Mudcake]

Hi all,

I use Photoshop 5.5

When I use a brush for example, the star sparkle brush on a 300dpi canvas, the star is just like a small dot at 100% view. Is it possible to use sparkle brush on a 300dpi canvas?

Also, the lighting filter option gets turned off when I work on CMYK mode. Is that normal? Are certain filters only meant for RGB mode?

If I work on RGB mode and convert it to CMYK mode later, will there be much color shift in printing?

Thanks for all your help guys!!

[Edited on 28-2-2003 by Mudcake]

[Stellor]

All the options work in RGB, but they don't all work in CMYK. If you work in RGB and pay close attention to the gamet warning triangle in the color picker converting to CMYK should be no problem. I just opened 5.5 for the first time in a long time, and I can't find a way to change the size of the custom brushes, 72ppi is about 4X smaller then 300ppi but if you look in the help menu under brushes it tells you how to create your own brushes
I hope this helps.

Sam

[Edited on 2/28/2003 by Stellor]

[Demise]

There is a tut for making your own brushes…. but dammed if I can remember where I saw it!! If you can make your own, it makes sense that you could manip the ones that already exist?

[Phil_The_Rodent]

If the brush is designed for 72 dpi, yeah, sometimes it's way to small for a 300 dpi canvas (because its size is defined in number of pixels). Some brushes are scaleable ( "[" and "]" keys) and some are packaged with a large number of different sizes. In the case where neither is true, you can define a brush just exactly the same way you define a pattern (Edit>Define Brush). At least in PS6. You may want to make a single small black spot with your brush and blow it up and redefine it.

EDIT: Said font instead of brush...

[Edited on 28-2-2003 by Phil_The_Rodent]

[Stellor]

In 5.5 define brush is in the brush pallett menu, click the triangle at the top right.

Sam

[Mudcake]

Thanks so much guys - you're my blessings! I usually blow up the brushes like the star or other shape but it's impossible to blow up the sparkle brush.

I will upgrade to PS 7 since it has the option of defining the brush size. I only realize now how outdated I am with PS 5.5

I understand now that certain filters like lighting doesn't work on CMYK mode. Does it work on CMYK mode in Illustrator? I am just curious as to the advantages of Illustrator over PS?

Thanks so much guys!!

[Phil_The_Rodent]

CMYK mode is for printing, but many filters will only run in RGB in PS. But you can turn on a CMYK preview mode in RGB so you can make sure that everything you're doing will work in CMYK. Also, if you're in the colour picker, and small exclamation point will appear beside any colour that is not in the CMYK gamut. Convert to CMYK after all this and you will be fine.

Illustrator is an entirely different animal than PS. Hmm. let me dig up that thread again...

Here it is.

http://www.photoshopcafe.com/cafe/vi...ad.php?tid=705

PS: Cybrghst, I think this makes 6....

[Edited on 1-3-2003 by Phil_The_Rodent]

[Mudcake]

Thanks Phil!

To anyone:

When I work on a new canvas in CMYK mode, I noticed that in the color picker, sometimes the triangle with exclamation mark appears when I chose a shade that is outside the gamut. Does it mean that even if I work on a new canvas in CMYK mode, I still have to pay close attention to the warning in the color picker?

If I am on CMYK mode but halfway need to use the lighting filter, can I convert it temporarily to RGB in order to use the filter and revert back to CMYK after that?

Thanks for all your input.



[Edited on 1-3-2003 by Mudcake]

[Phil_The_Rodent]

Work in RGB with CMYK preview turned on until the very very end. Save your final PSD, convert to CMYK, and save as tiff.

Pay VERY close attention to the warning in the colour picker if you are intending to go to print.

If you are not working for print, don't work in CMYK colour mode. It has the lowest gamut except maybe greyscale, and it creates bigger files.

[Mudcake]

Thanks Phil, your input has helped a lot and is greatly appreciated. Yes I am working on illustrations for a storybook.
Thanks so much again!