Jump to content

Graphic file formats


LadyCrimson

Recommended Posts

Not being an expert in this area, I'm wondering if there's any major quality difference between .bmp and .tga. The file size is almost the same, so they both contain approx. the same amount of information...does that mean they're about equal in quality?

 

And...on my screen, I don't see a lot of visual difference between .psd and .png files, despite the .psd's major file-size difference, even when blown up 500% - seems like .psd is mostly if you want to save files seperate layers.

 

Any expert input on what is the best to use for your "original" file? I've tried googling it a bit but haven't yet found a satisfactory answer (for my non-techie brain...), if indeed there is one. There's a lot of artists here so I thought I'd ask opinions...

Edited by LadyCrimson
“Things are as they are. Looking out into the universe at night, we make no comparisons between right and wrong stars, nor between well and badly arranged constellations.” – Alan Watts
Link to comment
Share on other sites

I'm concerned with both the master-file one uses to work/edit from, and the final-master that you actually send to the printer.

 

The minor issue I have with .psd is that while it's currently very popular, it's a proprietary format and assumes whoever you might send it to has a program that can read it.

 

After much googling and a mild headache from too many numbers/on-line reading I think .tif sounds like it's still the best and most universal for printing/final version archive concerns, particuarly with photos. .psd is good for the working copy if you have layers and if you're concerned with space it's slightly smaller than a .tif for the print-master.

“Things are as they are. Looking out into the universe at night, we make no comparisons between right and wrong stars, nor between well and badly arranged constellations.” – Alan Watts
Link to comment
Share on other sites

Always keep your original works as PSD with all the layers, adjustment layers, etc.

Difference between BMP and TGA? Well, the BMB only saves the Color information (24 bit), while the TGA supports Alpha channels as well (24bit color + 8 bit Alpha = 32 bit). HTH.

 

Edit: For printing, you might want to use Post Script (*.eps) and try to adjust your colors via Color Proof, because Printers usually use the CMYK color scheme.

Edited by Morgoth
Link to comment
Share on other sites

Sigh. Well I was trying to compare .psd vs. "hi-quality" .jpg vs. 8-bit tif and it was interesting because the psd definitely showed the slight beginnings of more artifacts. In the pic you can see it at the top portion of the eye stalk, little more grey in the middle of the brown. Not much tho. And actually, the .jpg didn't fare too bad considering, even tho it's obviously far inferior at that magnification.

 

It's all so confusing. Sometimes I think there's really not enough difference between the 'expert' formats to really matter beyond a certain point. Each has a little failing in one area vs another.

Edited by LadyCrimson
“Things are as they are. Looking out into the universe at night, we make no comparisons between right and wrong stars, nor between well and badly arranged constellations.” – Alan Watts
Link to comment
Share on other sites

For important photographs or graphic works like digital paintings, use PSD or TIF. For successful proffessional printing they also need to have a resolution of atleast 300 DPI

 

 

 

TGA is primarily used for textures with alpha channels.

DISCLAIMER: Do not take what I write seriously unless it is clearly and in no uncertain terms, declared by me to be meant in a serious and non-humoristic manner. If there is no clear indication, asume the post is written in jest. This notification is meant very seriously and its purpouse is to avoid misunderstandings and the consequences thereof. Furthermore; I can not be held accountable for anything I write on these forums since the idea of taking serious responsability for my unserious actions, is an oxymoron in itself.

 

Important: as the following sentence contains many naughty words I warn you not to read it under any circumstances; botty, knickers, wee, erogenous zone, psychiatrist, clitoris, stockings, bosom, poetry reading, dentist, fellatio and the department of agriculture.

 

"I suppose outright stupidity and complete lack of taste could also be considered points of view. "

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...