GIMP :: Brush Spacing And Alpha
Oct 14, 2013How do I set the spacing to make this brush draw seamlessly?
Attached File(s) brush_spacing.jpg (25.86K)
How do I set the spacing to make this brush draw seamlessly?
Attached File(s) brush_spacing.jpg (25.86K)
In an older version of gimp I was able to set the spacing of a brush (for smudging and such) and I currently have gimp 2.8 but I don't have the option to anymore. How to change the spacing of a brush now?
View 1 Replies View RelatedI've run into two problems using the brush tool:
1. When I use a low opacity to gradually build up highlights in a drawing the opacity seems to skip a few strokes: Nothing is actually happening after a fes brush strokes and then suddenly there's a bright line, nothing inbetween. It looks like i was drawing with 50% opacity even though it was actually 5%. All other option such as pressure sensitivity are turend off.
2. When drawing a straight line with the brushtool, and then zooming in, I can see the individual spots that make up the brushstroke. It looks like brushspacing was on even though it wasn't.
I use cs6 on a windows 7 platform and have a wacom intuos 4.
my graphic card is a GeForceGT 540M
Can I disable brush "spacing" for all brushes, and save the settings?
(For those that don't know: Brush spacing is set to 25% by default for all brushes. Brush spacing makes the brush jump 25% of its size as you move the mouse, no matter how fast or how slow. This is great if you want evenly spaced brush "clicks" to be simulated. However, I want pixel-perfect accuracy with larger brushes, i.e., I don't want the brush to jump by this spacing, so I need to disable this!)
Can I disable brush "spacing" for all brushes, and save the settings?
(For those that don't know: Brush spacing is set to 25% by default for all brushes. Brush spacing makes the brush jump 25% of its size as you move the mouse, no matter how fast or how slow. This is great if you want evenly spaced brush "clicks" to be simulated. However, I want pixel-perfect accuracy with larger brushes, i.e., I don't want the brush to jump by this spacing, so I need to disable this!)
My PSCS brushes are all set to about 12% spacing as default..
When I digitally paint, I have to manually move the spacing down for each one..Is there a way to set the spacing down for a whole set of brushes?
I'm using PS CS2. 'How to make a dotted line brush in Photoshop', it describes how to do this. It shows a brush palette that I can only assume is an older version (attachment 'Palette B.pdf'), because it is showing a spacing slider that mine doesn't (attachment 'Palette A.pdf').
View 1 Replies View Related1. original
2. doubled horizontal size of the line
I'm using scatter brush to draw multiple lines with random size and angle(image 1.), and trying to increase only the horizontal size(image 2.), keeping the interval the same. But when I do, the interval is also increased since 'Spacing' option follows the size of the base object. I could adjust and decrease the spacing value, but the problem is, spacing option cannot go below 1%. So if want to increase the line size and maintain the interval, there's no way to do it. expending then scaling could work, but that's not what I want.
How would I get text letters to run along a path evenly spaced when the path begins at a fixed point in the middle of the screen?
I've read about:
1) Starting later letters on later frames
2) Incorporating subsequent delay times in the layer names
3) Manipulating the From and To points in the path setup.
I just could not seem to modify the instruction from the "FOLLOW" tut to my situation. See attachments. The jumbled up letters on the first attachment are circled in red.
t1dAttached File(s) Text Space 1.JPG (63.71K)
Number of downloads: 19 Test Space 3.JPG (68.21K)
Number of downloads: 20
I'd like to use a grid to snap a lot(!) of small images into a larger(!) one. That works alright.
Problem: the large image has places the small images need to be snapped into, but they are not spaced an integer number of pixels apart. So the grid slowly wanders off the places as I move over the sheet. The places are 127.5 pixels apart (alternately 127 and 128, I guess). I cannot scale the image up, because the image is already 2.7 GB in size and my computer cannot handle the quadrupled size.
Is there a way to make GIMP accept a non-integer width for grid spacing?
It is absolutely ok if GIMP alternately places the grid lines a pixel shorter and a pixel longer.
Edit: I'm using GIMP 2.6.11, could install another version.
When using a hard-edged brush (round in this case), and using Shift+click to draw a continuous segment, the segment isn't perfectly straight at top and bottom. I know this is because of the "spacing" value of the brush, so the question is... can you make a global change for ALL brushes to have a spacing value of 1%?
View 4 Replies View RelatedI am having an odd problem with Gimp all of a sudden, I NEVER play with line spacing and according to the input box, it is still set to 0. but Gimp still is double spacing my lines when I type using the text tool!!
View 2 Replies View RelatedI am on SUSE 12.2 kde, gimp-2.8.0
The icon spacing in the toolbox randomly changes its inter iconspacing, see [URL] .........
The only way I can get it back to normal seems to be to close gimp downand restart it
Maybe it has been corrected in 2.8.4 but SUSE haven't offered this intheir repositories.
Is there another setting that I can tweak to restore the inter iconspacing.
I'm using a tablet with gimp and I want to be able to set the brush size for the paint brush and also for the eraser, separately. What happens now is that I'll set the paintbrush size to 10px, paint for a little while, turn the pen over to erase and the eraser will now be at 10px. So I'll adjust the eraser size to something like 50px, erase, turn over, and now the paintbrush is at 50px. Grrrrrrr... I tried creating new brushes for both the paintbrush and the eraser, but there's no brush size option. This is my first time using gimp so I'm probably missing something.
View 4 Replies View RelatedI have a 24bit PNG image to be used as a texture in my little game. I want to blend this texture with other colors which require it to have an extra alpha channel. I did some search online and tried some methods including add another layer and add transparency to the image, but neither worked(after I exported the image to png and reopened it, it still only contains 24 bits for every pixel).
View 4 Replies View RelatedI'm using 2.6. How do I add an Alpha Channel?
I can't find it in the selections.
When I color a the background of a photo to alpha it works just fine, I save it and export.
But when I try to open that same photo anywhere else the background is white .
How to do the steps described in the article "How do I Import Alpha Textures?" (
[URL].... butwith GIMP?
Is special, how can I create an explicit alpha channel that I can manipulate?
making a alpha channel transparency; Funny thing is. I made it work once a few days ago. I went to bed and forgot to write down how i did it (Tried everything, almost)
In the link right here [URL] n i have 4 files; Q3a_arrow_gimp_ver4.tga (TGA that works as i want it, you'll notice ALL the alpha channels have a black layer channel in the channels tab, how do i recreate that?) Q3a_arrow_methodtry.tga (tried to recreate with THIS tutorial [URL] with no success P.S. i tried loooads of tutorials but this recreation seems rather close to the working .TGA i need) Q3a_arrow.ai (sourcematerial all vector from Adobe Illustrator) Q3a_arrow.png (picture with transparency intact if needed for comparison)
So; Now... What i did to make the working picture was making a .PNG - drag it into gimp.. I recall doing some Alpha and or masking or selection thing with it, then rendered it for .TGA since Illustrator does not support the kind of .TGA i needed. Worked flawlessly in the engine where i use a function called alphafunc GE128 (blend with black as invisible layer and white as solid)
Is there an easy way in GIMP to invert the alpha channel of an image? Transparent should be opaque, opaque should be transparent, almost transparent should be almost opaque, etc.
View 4 Replies View RelatedI have a B&W images. It's actually in RGB but all shades are gray. I would like to create an alpha channel whose values equal the brightness of each pixel. How do I do that?
View 3 Replies View RelatedSome .BMP files.
I need to save some images with transparency that are in .BMP format, but said images seem to have what's called an alpha channel, which covers all of the image's background and not the transparency that I need. I've tried to use the "Convert color to alpha" option, but it appears that that only works in the image that I want and not in the alpha channel itself (yeah, I didn´t know what alpha channel was until then).
I leave an example of one of the various .BMP files that I want converted to .PNG with transparency.
I'm trying to create an image which emulates a solar corona (it's basically just a blurry circle). It's as easy as making one brush stroke in gimp, but my problem is that i can't get all the channels to be correctly set.
Ultimately i just want to edit the alpha channel, NOT the RGB ones. They should all be pure white, or 255, 255, 255. But for some reason, no matter how much masking or color selection or clicking only the alpha channel and not the RGB ones or anything that i do, i cannot keep the RGB white while editing the alpha channel, every stroke that affects alpha seems to invariably affect the other three.
How can i edit ONLY the alpha channel?
I want to use the Threshold Alpha command on a Layer of Solid Noise, but nothing happens. If I set the threshold to 255 everything goes transparent, anything below that the clouds are supremely unimpressed. It's an RGB image, has an alpha channel, no Alpha channel lock, the Threshold tool works fine. I also tried creating another test picture with several gradient in greys and colors, and they are equally unaffected by Threshold Alpha.
I'm using GIMP 2.6.11 on WinXP SP3.
My task is to do a batch processing over an folder with images. I want to add an alpha layer to every image (png). The alpha layer is from a static second image (bmp).
I can accomplish the task in the GIMP front end manually, but the exactly same steps in my script aren't working.
Here's the script:
(define (script-fu-batch-alpha-add globalpha globpics) (let* ((filelist (cadr (file-glob globpics 1))) (filealpha (car(cadr (file-glob globalpha 1)))) (imgalpha (car (gimp-file-load RUN-NONINTERACTIVE
filealpha filealpha))) (drawablealpha (car (gimp-image-get-active-layer imgalpha)))
[code].......
Thought I'd try Gimp on my new laptop instead of Photoshop. I'm making graphics for a game.
I needed to add an alpha channel to an image and edit it, including pasting into the alpha channel from the clipboard. Easiest thing in the world on Photoshop, but seems utterly impossible on Gimp.
I've looked at a few threads that discuss editing the alpha channel, and they make it sound like rocket science. Notable, most seem to involve juggline multiple other images and then following convoluted pasting operations to get anything down. Or using layer "Masks" which, as best I can see, are impossible to paste into (and I couldn't find how to convert these masks to alpha channels either.)
As it stands, I've failed to get anything onto an alpha channel at all, except some scribble that showed up in the tiny side icon but couldn't be seen in the main image.
I'm new to Gimp, and I'm hoping I've just missed something. What is the straight forward way to edit the alpha channel (drawing on it, pasting into it from the clipboard), and seeing the results at the same time. I've tried everything intuitive and nothing works.
Is there anything that can be done using an alpha channel, that can'tbe done using masks and layers, or vice versa? Context of question: I've worked extensively with masks and layers.I've never worked with alpha channels.For example:
Using an alpha channel:
1. Open two single layer images, A and B, neither one of which has analpha channel.
2. Drag the image B over to A and close B.3. Now image A has two layers, A and B. Put layer A on top, selectlayer A, set the blend mode to Normal, and add an alpha channel.4. Erase part of layer A, where-ever you want layer B to show through.At this point, layer A has an alpha channel with white where you wantlayer A to show, and black where you want layer B to show, but it doesnot have a mask.
OR
Using a layer mask:
1. Open two single layer images, A and B, neither one of which has analpha channel.
2. Drag image B over to A and close B.3. Now image A has two layers, A and B. Put layer A on top, selectlayer A, and set the blend mode to Normal (don't add an alphachannel).
4. Create a solid white mask for layer A. Paint black on the maskwhere you want layer B to show through.At this point, layer A has a mask with white where you want layer A toshow, and black where you want layer B to show., but it does not havean alpha channel.
In both cases, using a mask or using an alpha channel, the net resultis the same.So again, is there anything that can be done using an alpha channel,that can't be done using masks and layers, or vice versa?
My link but when I get to the part where it says to add the alpha channel - add alpha channel is greyed out in gimp.
I'm using Gimp 2.6 - windows xp.
Is it possible to directly edit the alpha channel? I need to edit it for a 3D model I've made, and its showing up as too shiney (The engine is looking at the alpha for reflectivity).
However, I have yet to see a way to edit the alpha channel directly.
I had a .JPEG of a leaf photographed against a white background. When I went to turn that white background into a transparent alpha channel, it seemed to work okay....except for the fact that when I then went to select the new alpha channel via the Fuzzy Select Tool, it wasn't selecting all these newly transparent pixels.
View 6 Replies View RelatedBasically I need to be able to add different information into each channel including the alpha without the image being transparent at all.
Not to compare at all, but in photoshop i could work solely in the alpha channel without the RGB channels visible, then enabling the RGB channels would allow me to see the entire image without any transparency.
Basically, i want to be able to use the alpha channel for things other than transparency. For storing different masks in each channel for use in shaders.