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Subject: equal gradients


antevark ( ) posted Fri, 04 April 2003 at 10:59 PM · edited Wed, 20 November 2024 at 9:02 AM

file_53254.jpg

i need to make all of these dots a gradient to the next dot. i don't really know how else to word it.... the red backgrounds just so that you can see both the white and black dots. i played played around with multiple gradients on different layers and blending modes, but i'm stumped.


antevark ( ) posted Sat, 05 April 2003 at 3:16 PM

not quite, i need to have the whole thing filled up with the gradients


Andini ( ) posted Sat, 05 April 2003 at 9:13 PM

I'm surprised that a radial gradient wouldn't work. What exactly, are you needing this for?


antevark ( ) posted Sun, 06 April 2003 at 12:33 AM

file_53256.jpg

ok, here's what i have to do: i have bryce, which can make terrains out of height maps(where white is the highest and black is the lowest). I need to make a height map out of these measurements. I made it so that white(255) is 43, and black(0) is... 0. This makes it so that in order to make all of these relative to each other, i multiplied all of the numbers by 5.9. Then i used that number as the colour value. now i have to make it so that there's a perfect gradient to each other adjacent point. not easy, i think.


antevark ( ) posted Sun, 06 April 2003 at 12:34 AM

oh, and those numbers are heights on a real terrain.


kd_kedar ( ) posted Sun, 06 April 2003 at 3:23 AM

What exactly, are you needing this for? do u want that every circle have an equal gradient or what?


Rosemaryr ( ) posted Sun, 06 April 2003 at 8:35 AM

Actually, what I think you need is Illustrator's Gradient Mesh tool, which can create this sort of multi-point gradient. Let me see if I can whip up something for you.....Be back shortly..........

RosemaryR
---------------------------
"This...this is magnificent!"
"Oh, yeah. Ooooo. Aaaaah. That's how it starts.
Then, later, there's ...running. And....screaming."


gremli9 ( ) posted Sun, 06 April 2003 at 9:53 AM

file_53257.jpg

im not sure what you mean. but imagining the circles were exactly the same size, one cut out of the gradient from right next to the other, then those dots pasted where you need them. would that help?


Rosemaryr ( ) posted Sun, 06 April 2003 at 9:56 AM

file_53258.jpg

Okay, here's a *very* rough attempt---(I'm just learning Illustrator, so my vector work is still at beginner's level...). There are some obvious artifacts from the mesh formation, and some of the points on the edges had to be guessed at. I can do a more detailed and larger version with more time, if this is what you're after. Email direct (rosemaryr1@prodigy.net) or IM me through R'osity if you're interested.....

RosemaryR
---------------------------
"This...this is magnificent!"
"Oh, yeah. Ooooo. Aaaaah. That's how it starts.
Then, later, there's ...running. And....screaming."


Rosemaryr ( ) posted Sun, 06 April 2003 at 11:35 AM

Karosnikov: Not to my knowlege, in the current PS capabilities, except by very very careful use of the Image warp....Maybe in the next version, we hope?? Much easier in Illustrator, as you can set the actual values and positions of the mesh points quickly. It's a matter of the right tool for the job. :)
I would, of course, take this into PS to smooth out the gradient transitions before taking it into Bryce for terrain use.

RosemaryR
---------------------------
"This...this is magnificent!"
"Oh, yeah. Ooooo. Aaaaah. That's how it starts.
Then, later, there's ...running. And....screaming."


Andini ( ) posted Sun, 06 April 2003 at 12:22 PM

You might be able to use the airbrush on a seperate layer (using your dots as a guide). Just by making solid, bigger, areas of the correct color and blend them by hand by blending two areas together. Does this make sense?


antevark ( ) posted Sun, 06 April 2003 at 2:34 PM

andini: i think i kno what you're talking about, but that can get very tricky, i tried it for a little bit earlier, but gave up rosemaryr: you got it. that's what i need. That also that adds to the list of things that PS lacks, but other programs have. Was illustrator included with PS6? I kno that Image Ready was included with PS7, but if it was included in 6, then I have it. I can check later tonight(I've got 5.5 thru 7 still on my comp). So how exactly did you do that? I've been meaning to learn some of adobe's other programs, but havn't really gotten around to it.


Rosemaryr ( ) posted Sun, 06 April 2003 at 10:44 PM

No, Illustrator is still a separate proggie...but things do tend to converge. We can hope!:) It would be useful to have one package that does it all.

How? I assumed a black square base--since you mentioned it was for a Bryce terrain, I figured you wanted to start at a zero elevation. (let me know if that's wrong- otherwise you'll have some funky cliffs at that lower edge of the terrain pic...g)
Next, after converting it to a "mesh object", you start adding mesh control points, and adjusting the greyscale values and positions individually for each. Since each point is connected to the nearest others with Bexier curve lines, you can adjust the 'pull' between each point. Add enough points, and voila!

I'll work on a more carefully laid-out version for you--let me know what final size you want for the pic to work in Bryce.

RosemaryR
---------------------------
"This...this is magnificent!"
"Oh, yeah. Ooooo. Aaaaah. That's how it starts.
Then, later, there's ...running. And....screaming."


antevark ( ) posted Sun, 06 April 2003 at 10:54 PM

Don't worry about this version, I'll have a more accurate version by the end of the week. I'll fiddle around with Vectorworks, see if I can get it to do this.


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