Big Screenshots and Panorama plugin

patmurris · 11-12-2006, 10:38 PM

Bull recently droped to me the idea of a 'panorama' plugin for WW, and after giving it some thoughts i decided to simply make a plugin that takes bigger than the screen screen shots.

So if you want a panorama, just squiz vertically the WW window into a wide panorama and shoot it at twice - or more that size. And of course, there are many other use for such a tool (print size screenshots, antialiased rendering...).

After gathering code here and there, i have something working but there is a ZBuffer (depth) issue. See this shot here.

The actual version simply ask for a file name and try to save the current view at twice the current window size (sizeFactor = 2 in the source). When using same screen size (sizeFactor = 1) it works, but as soon as it is bigger, it seems that the ZBuffer stay smaller or is not used at all...

Here is BigScreenshot plugin 0.1 alpha 1 (Zip 248k) with the ZBuffer bug... if anyone can help on that

Note : i first did the rendering in the onClick menu handler and then moved it to a renderable layer Render() method with a different approach (without RenderToSurface helper). Same results though...

Guest_Jim_* · 11-12-2006, 11:58 PM

I'm not sure if this is related to the zbuffer but, me for, it only has a quarter image, the other three fourths are black. Here's the screenshot.
http://forum.worldwindcentral.com/at...1&d=1163372281

patmurris · 11-13-2006, 12:12 AM

Quote:

Originally Posted by Guest_Jim_*

me for, it only has a quarter image, the other three fourths are black. Here's the screenshot.

Strange... for me it at least gives a full pict on 1.3.5 and in 1.4 beta...

http://www.alpix.com/3d/worldwin/BigScreenshot_17.jpg

EDIT: more screenshots :
Zbuffer not really involved : http://www.alpix.com/3d/worldwin/BigScreenshot_19.jpg
Zbuffer badly needed here : http://www.alpix.com/3d/worldwin/BigScreenshot_20.jpg. Modern art ?!

patmurris · 11-13-2006, 06:53 AM

I fixed the ZBuffer bug and it works up to a certain size...
Here is BigScreenshot plugin 0.1 (Zip 5k). 2X screenshot magnifier.

Some panoramas (click for full size) :

Nice and the French/Italian Riviera

San Francisco bay

On my cheap and dated GeForce 4 MX it fails if i try to go beyond 2048 x 2048 pixels. There is a limit to how big a texture can be. Can we go above with other video boards ?

Edit: it now checks the hardware capabilities and down scale the resulting image if necessary to match the maximum allowed. Above link updated.

PostFatal_ · 11-13-2006, 09:18 AM

I haven't spoken to Bull so I don't know for sure what he meant by "panoramic" but to me it doesn't mean widescreen. Panoramic to me would be to stand in the middle and "pan" around me in 360 degrees. I've been hopeing for such a feature that would allow me to glue myself to a position and release my mouse to "freelook" in any direction left, right, down or up. This could open up a whole new possibility for viewing the night sky, it could even allow for a planetarium plugin. That's not to say that what you have done isn't great because it is. Thank you very much for your hard work.

patmurris · 11-13-2006, 08:13 PM

Quote:

Originally Posted by PostFatal_

I haven't spoken to Bull so I don't know for sure what he meant by "panoramic" but to me it doesn't mean widescreen.

I agree it is not as good as it should be - and the final size is limited... but it is much easier to code than shooting and stitching a serie of views while rotating the camera. Thats also why i called it BigScreenshot and not Panorama plug-in.

As for rotating freely the camera in WW... it has been on the community wish list for a long time... but never made it. I think Punt has it.

m_k · 11-13-2006, 08:33 PM

Another issue:

2 suns in the screenshot (no, it's not Tatooine)

But still very good plugin - just mix it with the Movie Recorder and we can create HD movies

Guest_Jim_* · 11-13-2006, 11:08 PM

Found another bug, although this one probably isn't that important. If you take an image that has the measure tool in it the line is in the right place but the lenght isn't. Here's the screenshot.
http://forum.worldwindcentral.com/at...1&d=1163455705

patmurris · 11-14-2006, 01:39 AM

Fixed the two above bugs... here is BigScreenshot plugin 0.2 (Zip 5k)

Does anyone manage to go above 2048x2048 ?

patmurris · 11-15-2006, 01:27 AM

Geology maps and WW 1.4 SunShading... sweet

French Maritime Alps with BRGM layer and shading

11-12-2006, 10:38 PM	#1
patmurris WWJ Consultant Join Date: Jun 2005 Location: Saint-Paul de Vence, Alpes Maritimes, France Posts: 3,412	Big Screenshots and Panorama plugin Bull recently droped to me the idea of a 'panorama' plugin for WW, and after giving it some thoughts i decided to simply make a plugin that takes bigger than the screen screen shots. So if you want a panorama, just squiz vertically the WW window into a wide panorama and shoot it at twice - or more that size. And of course, there are many other use for such a tool (print size screenshots, antialiased rendering...). After gathering code here and there, i have something working but there is a ZBuffer (depth) issue. See this shot here. The actual version simply ask for a file name and try to save the current view at twice the current window size (sizeFactor = 2 in the source). When using same screen size (sizeFactor = 1) it works, but as soon as it is bigger, it seems that the ZBuffer stay smaller or is not used at all... Here is BigScreenshot plugin 0.1 alpha 1 (Zip 248k) with the ZBuffer bug... if anyone can help on that Note : i first did the rendering in the onClick menu handler and then moved it to a renderable layer Render() method with a different approach (without RenderToSurface helper). Same results though... __________________ My World Wind Java Blog & WW.net Plugins page Last edited by patmurris; 11-23-2006 at 10:08 AM.

11-13-2006, 06:53 AM	#4
patmurris WWJ Consultant Join Date: Jun 2005 Location: Saint-Paul de Vence, Alpes Maritimes, France Posts: 3,412	BigScreenshot 0.1 I fixed the ZBuffer bug and it works up to a certain size... Here is BigScreenshot plugin 0.1 (Zip 5k). 2X screenshot magnifier. Some panoramas (click for full size) : Nice and the French/Italian Riviera San Francisco bay On my cheap and dated GeForce 4 MX it fails if i try to go beyond 2048 x 2048 pixels. There is a limit to how big a texture can be. Can we go above with other video boards ? Edit: it now checks the hardware capabilities and down scale the resulting image if necessary to match the maximum allowed. Above link updated. __________________ My World Wind Java Blog & WW.net Plugins page Last edited by patmurris; 11-13-2006 at 08:40 AM. Reason: No more beta, updated links

11-13-2006, 08:33 PM	#7
m_k Bored Explorer Join Date: Nov 2004 Location: Warsaw, Poland Posts: 1,737	Another issue: 2 suns in the screenshot (no, it's not Tatooine) But still very good plugin - just mix it with the Movie Recorder and we can create HD movies __________________ Hot stuff: FAQ, forum search, DirectX, .NET, Video Card Compatibility list

11-14-2006, 01:39 AM	#9
patmurris WWJ Consultant Join Date: Jun 2005 Location: Saint-Paul de Vence, Alpes Maritimes, France Posts: 3,412	BigScreenshot plugin 0.2 Fixed the two above bugs... here is BigScreenshot plugin 0.2 (Zip 5k) Does anyone manage to go above 2048x2048 ? __________________ My World Wind Java Blog & WW.net Plugins page

11-15-2006, 01:27 AM	#10
patmurris WWJ Consultant Join Date: Jun 2005 Location: Saint-Paul de Vence, Alpes Maritimes, France Posts: 3,412	Geology maps and WW 1.4 SunShading... sweet French Maritime Alps with BRGM layer and shading __________________ My World Wind Java Blog & WW.net Plugins page

11-13-2006, 09:18 AM	#5
PostFatal_ Senior Member Join Date: Aug 2006 Posts: 100	I haven't spoken to Bull so I don't know for sure what he meant by "panoramic" but to me it doesn't mean widescreen. Panoramic to me would be to stand in the middle and "pan" around me in 360 degrees. I've been hopeing for such a feature that would allow me to glue myself to a position and release my mouse to "freelook" in any direction left, right, down or up. This could open up a whole new possibility for viewing the night sky, it could even allow for a planetarium plugin. That's not to say that what you have done isn't great because it is. Thank you very much for your hard work.

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