Multimarkers and resolution again

[Vikki]

Well, I've taken a break from one piece to work on this one...I still don't have a *child's face* all the way but I was going to go with this one...anyway after looking at the tomatoe thread I decided to look up multimarkers and try it out. Oish! Argh! Ick! :D

When I use the multimarker tool I only get some of the parts to the girl...and each time I try I get different parts...hehe .. one time I had two eyeballs a full dress and one sock...urgh! Should I be markering each piece as I add it? I obviously don't get it. :D

Anyway here's what I'm working on tonight...and yes the girl alone is totally out of proportion...that's what happens when you don't plan ahead...so her legs got a little short. :D

I just put the frog in there cause I had him handy...something else will be there later.

I'm also having trouble with resolution see notes under the two larger images....

http://www2.zbrushcentral.com/zbc_uploads/user_image-1026195386bzu.jpg

http://www2.zbrushcentral.com/zbc_uploads/user_image-1026195481cxf.jpg

The above image was exported out of Z at 600x600. I created it in 1000x1000... opened in Corel...resampled to 300 dpi and not resized.

http://www2.zbrushcentral.com/zbc_uploads/user_image-1026195603lzb.jpg

The above image was exported out of Z at 1000x1000 opened in Corel ... resampled to 300 dpi and resized.

What am I missing here? I know I've asked a lot of questions, my first intent was just to ask about multi markers but then when I tried to get the image out of Z I ran into the other troubles. :D Any help would be muchly appreciated!

[DLee]

Remember this is from a newbie, so wait till the pro's give better advice than me. ~g~

Multi markers. Make each part seperatly. save them. Then bring them in a new document multi marking each one. clear the layer, bring up the M tool which will be all your parts, position them make mesh.

Make sense? I'm very new at the helping someone else part. Just that lately I've been having some luck with the multimark tool. I use EZ's script for making the mesh, seems to work better than the convert to mesh tool. At least for me.

Cute pic btw.

[aurick]

I find that the multiple marker tool works best when you save each piece separately before adding them to the canvas. And of course, you need to place a marker for each one as you place it on the canvas. You may also want to reduce the marker radius in your preferences before you actually use the MM tool. That can help overcome conflicts where pieces are too close together (if two markers are within the marker radius of one another, it can get ugly).

[Vikki]

Thank you both for your answers! Wow and so quick too! :D

Aurick, yep, that was part of the problem. I needed to turn down my marker size. Thanks!

You both of course got the other part dead on. :D

Thanks again!

[DeeVee]

Hi Vikki I am glad you got the help you needed. Nice image!
Your branches are certainly getting better and better! congratulations ! :D :tu: :tu:

[Mentat7]

Hi Vikki! About the resizing/dpi thing... If you resize your document AND increase the DPI then you will get the results you posted above every time. The reason is that you are reducing the pixel count when you resize and then you turn around and increase the dpi. You taketh away then attempt to addeth back in. It is difficult to add detail where there was none before. The best outcome you will get will be a general extrapolation. Understand? If you are wanting to print this document at 300 DPI and your screen size is at 1000 then you must start with a document size of 4166 pix x 4166 pix! There are two approaches to changing the DPI in Photoshop (I use Photoshop as the example but Corel probably has a similar feature). The first is to change the pixel DPI to 300 and choose Resample Image. This will change the physiscal size of the image by interpolating and adding pixel information into the document. The result is a larger more blurry rendition of the original. The other method (and prefered) is to make the document larger then change the DPI in Photoshop but uncheck the resample image. This will take all the extra image data and compress it into the smaller (physical print) 300 dpi area. What you have done is created all the extra image data it needs to make the smaller 300 dpi image so it will remain crisp and clear.

Now if you are making your image for display on a computer monitor then don't worry about dpi. It will not make a difference as your monitor can not display anything different than 72 dpi. In this case make the image larger say around 1500 x 1500 then just reduce it to around 1000 x 1000 or whatever fits your monitor best. Leave the dpi alone at 72. This will get rid of the jaggies.

Now with all that said it is not always necessary to change the dpi settings if you are going to print your document to say a home inkjet printer. It depends entirely on the quality of the printer. For example I can take a regular 72 dpi image that was created at 1500 x 1500 and simply resize it to fit a standard sheet of paper and print it on my HP 970. It looks quite acceptable. However if you are wanting to create professional level output then you will need to go the route of LARGE IMAGE>INCREASE DPI (NO RESAMPLE)>POSSIBLE RESIZE/CROP.

Here is a quick way to figure what your original document size will need to be to get you where you want to go.

PHYSICAL PRINT SIZE x DPI

For example if you want to print at 300 dpi and the printed output needs to be 5" x 8" then the document size needs to be (5x300) by (8x300) or 1500 pixels by 2400 pixels. Then open it in your favorite image editing program. Change the dpi from 72 to 300 but do not resample it. Originally it will show the printed size to be around 20" by 33" (at 72 dpi). Once you change the dpi without resampling it will reduce the print size to 5x8 and you will retain all the glorious detail! I hope this is clear enough. If you have additional questions please feel free to email me!
:)

[Hanuman]

<BLOCKQUOTE>quote:</font><HR> If you are wanting to print this document at 300 DPI and your screen size is at 1000 then you must start with a document size of 300000 pix x 300000 pix! <HR></BLOCKQUOTE>

This is incorrect.

If you start with a document size in ZBrush of 1000 pixels square this is almost 14 inches square at 72ppi.

If you want to print the image at the same dimensions (14" x 14") at 300 dpi then you would need your Zbrush document to be 4,167 x 4,167 which would give you a 50mb file, and is almost within the current ZBrush limit of 4096 x 4096

[Mentat7]

Correct...my fingers got ahead of my thoughts as I was working on another tangent (I was thinking 1000 inches!). Actually it would exceed the 4096 x 4096 limit by about 71 pixels on each side. Thank you for catching that Han.

[Vikki]

Mentat! Thanks for the explanation. Now I've got it. No wonder I couldn't see any difference. :rolleyes: That explains it very well. I was jumping through all those hoops and couldn't see why since it all looked pretty much the same to me. Now I got it, I'll make the image in Z at 1000 x 1000 and then just reduce it in half leaving it at 72 dpi.

Thanks again! :D