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 Post subject: Re: Environment Mapped Text Tutorial
PostPosted: Sun Sep 01, 2013 3:45 pm  (#61) 
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molly wrote:
I did the whole thing again step by step, except at the end I colorized it. I don't know why my letters turn out dull and indented, especially the P. The G is fine but I don't have the shine like yours Tux. :gaah
Image

I was able to duplicate the washed out effect you got, starting with white text and running colorize. The lighter the text you start with, the more washed the image will be after the initial lighting effect is applied. I didn't run the LE filter again, with the emap deselected, just ran the LE once, with a bumpmap at a blur of 20. Here is what I ended up with.
Image

So, I would suggest that you start with black (or very dark) text unless your emap is very dark to begin with. The distance slider, under the options tab, can also dramatically effect the overall brightness of the result.

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 Post subject: Re: Environment Mapped Text Tutorial
PostPosted: Sun Sep 01, 2013 3:48 pm  (#62) 
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I just tried another one and it turned out awful. I used a med gray this time b2b2b2. I tried white and it wouldn't bump map. I didn't know how to use the new envMap filter. I couldn't make a new layer out of a gradient so I gave up on that.
I will try again and go back to black text with Tux original red_map. Mine just won't go shiny.

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 Post subject: Re: Environment Mapped Text Tutorial
PostPosted: Sun Sep 01, 2013 3:50 pm  (#63) 
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GnuTux wrote:
molly wrote:
I did the whole thing again step by step, except at the end I colorized it. I don't know why my letters turn out dull and indented, especially the P. The G is fine but I don't have the shine like yours Tux. :gaah
Image

I was able to duplicate the washed out effect you got, starting with white text and running colorize. The lighter the text you start with, the more washed the image will be after the initial lighting effect is applied. I didn't run the LE filter again, with the emap deselected, just ran the LE once, with a bumpmap at a blur of 20. Here is what I ended up with.
[ Image ]

So, I would suggest that you start with black (or very dark) text unless your emap is very dark to begin with. The distance slider, under the options tab, can also dramatically effect the overall brightness of the result.

ok, thanks tux, I am starting it again and see what happens. I am a :geek :gaah

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 Post subject: Re: Environment Mapped Text Tutorial
PostPosted: Sun Sep 01, 2013 3:54 pm  (#64) 
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I really had to work at it to get the washed out effect so I'm not sure what's going on with your results. I recommend following the tut exactly (black text). Seems that if you follow the tut, the results would be exactly the same.

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 Post subject: Re: Environment Mapped Text Tutorial
PostPosted: Sun Sep 01, 2013 4:09 pm  (#65) 
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Esper wrote:
you cant really bumpmap black, can you ?
you can bumpmap white, but then you just see the dark bits
thats why i use the 50ies grey for all my bumpmapping stuff (#808080)

my guess is bumpmapping black, as in this tutorial, works because of the change in colour from the environment-map

Well, it works because of the blur. Solid black is flat and solid white is the max height so the blur in the bumpmap image gives you the grayscale needed to produce the height/depth in the image to be bumped.

Image

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 Post subject: Re: Environment Mapped Text Tutorial
PostPosted: Sun Sep 01, 2013 4:28 pm  (#66) 
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Woo Hoo, I finally did it. :yes
I changed the blur from 15 to 20.

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 Post subject: Re: Environment Mapped Text Tutorial
PostPosted: Sun Sep 01, 2013 4:29 pm  (#67) 
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Esper wrote:
you cant really bumpmap black, can you ?
you can bumpmap white, but then you just see the dark bits
thats why i use the 50ies grey for all my bumpmapping stuff (#808080)

my guess is bumpmapping black, as in this tutorial, works because of the change in colour from the environment-map

Using the same settings, changing only the initial color of the text, I got the following results. (for text in white, black and gray)
Image

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 Post subject: Re: Environment Mapped Text Tutorial
PostPosted: Sun Sep 01, 2013 4:31 pm  (#68) 
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molly wrote:
Woo Hoo, I finally did it. :yes
I changed the blur from 15 to 20.

[ [url]Image[/url] ]

:yes :coolthup :drum :grooving :vic
Nice Molly!!

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 Post subject: Re: Environment Mapped Text Tutorial
PostPosted: Sun Sep 01, 2013 4:32 pm  (#69) 
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Looks great, Molly! :hi5

I think you also have the Maximum Height > 0.01 in the Bump Map tab of the lighting effects filter. Either that or you have the drop shadow very dark. Looks really good tho. :hehe

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 Post subject: Re: Environment Mapped Text Tutorial
PostPosted: Sun Sep 01, 2013 4:41 pm  (#70) 
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I think it is the drop shadow. I forgot to lighten it. I had the 0.01 in the Bump Map tab.
I was so excited when it came out okay, I couldn't wait till I posted it. Now I want to know how I get that new envir filter to work in that tute. I don't know how to open one of the gradients as a new layer.

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 Post subject: Re: Environment Mapped Text Tutorial
PostPosted: Sun Sep 01, 2013 4:52 pm  (#71) 
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molly wrote:
Now I want to know how I get that new envir filter to work in that tute. I don't know how to open one of the gradients as a new layer.

Instead of opening the bumpmap: envmap_red.jpg specified in Step #6b, just create a new 400x400 pixel image and run the enviromap.scm script to generate the map. You can tab between the two images and keep generating a new environment map, applying the new map to the text image until you find one you like.

If I don't like the results, I use Ctrl-z to undo the lighting effect, tab to the enviromap image and generate another, then back to the text tab to try the new map with the lighting filter.

I've assigned the Lighting Effects filter and the EnviroMap script to "Alt key" strokes so I don't have to wade though the menus to pull them up. It makes testing new maps a lot easier. :hehe

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 Post subject: Re: Environment Mapped Text Tutorial
PostPosted: Sun Sep 01, 2013 4:55 pm  (#72) 
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Thank you tux, I will write all this down.

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 Post subject: Re: Environment Mapped Text Tutorial
PostPosted: Sun Sep 01, 2013 7:01 pm  (#73) 
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GnuTux wrote:
Esper wrote:
you cant really bumpmap black, can you ?
you can bumpmap white, but then you just see the dark bits
thats why i use the 50ies grey for all my bumpmapping stuff (#808080)

my guess is bumpmapping black, as in this tutorial, works because of the change in colour from the environment-map

Well, it works because of the blur. Solid black is flat and solid white is the max height so the blur in the bumpmap image gives you the grayscale needed to produce the height/depth in the image to be bumped.

[ Image ]
you misunderstood me

i was talking about the color of the text, not the bumpmap


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 Post subject: Re: Environment Mapped Text Tutorial
PostPosted: Sun Sep 01, 2013 7:57 pm  (#74) 
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Yes, I was just pointing out that it was the bumpmap itself and not the color of the text that was the determining factor. The initial color of the text does factor into the lightness of the result when you apply the environment map, whether you apply a bumpmap or not.

Just bump mapping..

Black Text Bumped
Image

Gray Text Bumped
Image

White Text Bumped
Image

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 Post subject: Re: Environment Mapped Text Tutorial
PostPosted: Sun Sep 01, 2013 8:11 pm  (#75) 
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Cool I like the black one ,looks like licorice.

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 Post subject: Re: Environment Mapped Text Tutorial
PostPosted: Sun Sep 01, 2013 8:17 pm  (#76) 
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Here is a result using the same blending technique used for glitter but this time with a pattern. :smiley2

Image

This is with the pattern bumped before overlaying..

Image

And another notch..
Image

This is another result I'm calling golden backlight..

Image

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 Post subject: Re: Environment Mapped Text Tutorial
PostPosted: Sun Sep 01, 2013 8:19 pm  (#77) 
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@GnuTux:
hmm, im not sure if we talk past each other
or if im the one who misunderstands you
Akros already pointed out how different coloured text changes the brightness of the environment-bumped text

i just repeated your experiment with the Render -> BumpMap filter and i do get nothing with black text
no white highlights as you have in your demonstration- it just stays the same

so it seems the Lighting Effect BumpMap is not the same as the ordinary BumpMap filter


EDIT: actually this is all quite obvious, Lighting Effects is doing more than the BumpMap Filter
sorry about the confusion, GnuTux, please ignore my post

GnuTux wrote:
Here is a result using the same blending technique used for glitter but this time with a pattern. :smiley2

[ Image ]

This is golden backlight..

[ Image ]

thats extremely nice !


Last edited by Esper on Sun Sep 01, 2013 8:29 pm, edited 1 time in total.

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 Post subject: Re: Environment Mapped Text Tutorial
PostPosted: Sun Sep 01, 2013 8:26 pm  (#78) 
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GnuTux wrote:
Here is a result using the same blending technique used for glitter but this time with a pattern. :smiley2

[ Image ]

This is golden backlight..

[ Image ]

Q
That is really cool It looks like the text is lying right on the grate.
Are you sure you aren!t using PS? :lol :mrgreen:
I never saw text that shiny before.

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 Post subject: Re: Environment Mapped Text Tutorial
PostPosted: Sun Sep 01, 2013 8:38 pm  (#79) 
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Esper wrote:
i just repeated your experiment with the Render -> BumpMap filter and i do get nothing with black text
no white highlights as you have in your demonstration- it just stays the same

so it seems the Lighting Effect BumpMap is not the same as the ordinary BumpMap filter

Yes, I see what you are saying now. When bump mapping outside of the lighting effects filter, there is no light to create the highlights so there is no effect on black text. Good point!

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 Post subject: Re: Environment Mapped Text Tutorial
PostPosted: Sun Sep 01, 2013 8:42 pm  (#80) 
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GnuTux wrote:
Yes, I see what you are saying now. When bump mapping outside of the lighting effects filter, there is no light to create the highlights so there is no effect on black text. Good point!
yes, i edited my post already, lol

i did a lot of bumpmapping experiments some time ago, you can see the results here:
viewtopic.php?f=12&t=6202&start=0


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