@anssi said:

Hi,

The effect is very easy to achieve in Photoshop. Export a colour image with shadows etc. but with edges turned off. Export a second image, as a hidden-line line drawing without shadows. Put the line drawing as a layer above the colour image, set the layer mode to Multiply or Darken, and adjust the layer transparency slider until you get what you want.

Thank you, Anssi, - it's a very useful technique for standalone pictures!

It’s a pity, but according to my task I would like to have the opacity adjusting inside SketchUp session.
I have got that in current version of SketchUp it’s impossible.

Good luck!

@alan fraser said:

In other words, your red example logically ought to show the same difference as the green...but it doesn't...because it's red.

OK! Thank you for your opinion and for the really pretty phrase I have quoted !

In my task I have to work with lines (edges) on the faces backgrounds. Therefore the relation between the edge screen colors (stable) and the faces screen colors (changeable) is very important to me. So I really see a problem .

Thank you again for your answer. I will take into consideration the SketchUp color visualization properties you have mentioned. Good luck!

@jim said:

I've moved this to the Tutorials section:

http://www.sketchucation.com/forums/scf/viewtopic.php?f=26&t=6067

It works! Thank you very much for your assistance. I agree that your decision of WebDialog positioning problem must be in the Tutorial section - it’s very useful.

@unknownuser said:

Google search engine is your friend.

Read this, then apply that information to your HTML.

http://www.mollerus.net/tom/blog/2007/10/javascript_for_centering_a_popup_window_to_the_scr.html

Thank you for this link.

I have got that I can activate WebDialog, show it and INSIDE html use Javascript for screen sizes obtaining and open the SECOND WebDialog window, using screensize information I have obtained. So I need the FIRST WebDialog for correct positioning of the SECOND WebDialog. Therefore I can set the right position of the SECOND Web Dialog box only.

But the task is to set the position of the FIRST Web Dialog box in the center of the screen. I can't understand how I can use Javascript before Web Dialog activation.

Sorry for my stupidity . It may be very simple, but it is not clear to me yet.

@wikii said:

to all,
I hava tried to get screen size using JavaScript in html with get_element_value methods,it can work in SU ruby panel.

In html:

@unknownuser said:

<script language="javascript">
document.write('<div style="display:none;" ><input type="text" name="textfield" id="screen_width" style="width:150px;" value="'+ screen.width + '" /></div>')</javascript>

In rb program:

@unknownuser said:

$dlg.get_element_value "screen.width"

when the program is running, $dlg.get_element_value "screen.width" always get nothing;but in ruby panel,$dlg.get_element_value "screen.width" return "1680",that's exact my screen width!

I have tried too, but I have some problems. Would you be so kind as to send the whole sources (html+rb), please?

Thank you very much for saving of my time from useless experiments!

@unknownuser said:

arl,
Isn't orbiting your solution?
Unselect 'Display Shadows' and orbit to see what happens to the visibility.

Thank you for answer.

I know that the color on a face will alter based on the angle you're looking at it.

But what about the situation you can see on the screenshot in my question? Angle IS the SAME (top view), but the color visualization principles for green and red faces are NOT! Visualization of Red color -> true (screen color = entity color) but visualization of green color -> wrong SIMULTANEOUSLY (?!). What is the rule for such behaviour prediction?

Thank you for immediate answer!

Would you like to clear some details:

1. How I can find the current screen resolution in this case?

2. I can use javascripts inside (later), but when I activate WebDialog Box I have to use coordinates at the beginning. How I can find coordinates on this "initial" stage?

Can I set the position of WebDialog Dialog Box to the center of the SCREEN (not to the view (viewport) center, but to the SCREEN center)?

I can get the visual results of the material/color opacity adjusting, when the material/color assigned to a FACE. But when the material/color assigned to an EDGE I can't get any visual effect, after adjusting of the material/color opacity.

Why?