Hi All I'm working on a flight simulator project where I have to generated the database and render it in real time. I would like to know to use VTP for the...
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Ben Discoe
bdiscoe
Mar 2, 2011 5:06 pm
Vijeesh, I recommend to start with the tutorials. You will find them with all the documentation at http://vterrain.org/Doc/ The vert first tutorial shows you...
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Ben Discoe
bdiscoe
Mar 5, 2011 9:24 pm
... Seems reasonable; i thought that was SVN's default already. I wasn’t seeing any trouble with CRs appearing when i checked out on Linux, but i guess it ...
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Ben Discoe
bdiscoe
Mar 14, 2011 4:50 pm
Xinrongfan, "mini/mini.h" is the header file for libMini. As you are compiling on Windows, the Windows build instructions tell you how to how install libMini...
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Kirsten
griffiki
Mar 17, 2011 5:48 pm
In Enviro, the option to "Derive Texture from Elevation" is only available for Grid terrains. I'd like to do this for tiled terrains. Can you tell me what it...
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Lars Fricke
oldgreyeagle
Mar 18, 2011 4:15 pm
Hello Kirsten, once you will create a tiled DTM, VTBuilder will ask you if you want to create color texture tiles, too. Does this solve your problem? In...
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Ben Discoe
bdiscoe
Mar 19, 2011 11:26 pm
Kirsten, You can't derive texture from tileset elevation at runtime (in Enviro), but as Lars said, you can do it in VTBuilder at the time you're building your ...
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Vijeesh
vijeesh_then...
Mar 21, 2011 11:12 am
Hi Ben I was going through the doc and trying to render a small terrain. I just have few doublts in that. First Will the real time generation of scenegraph...
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Kirsten
griffiki
Mar 21, 2011 3:00 pm
Thanks Lars and Ben, Do you think it would be difficult for me to modify the Enviro code to derive the tileset texture from the tileset elevation using code...
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Stefan Roettger
stefan.roettger
Mar 21, 2011 4:05 pm
As an alternative, you could write a pixel shader that takes the elevation of a given fragment and modifies its color on-the-fly. cheers, stefan ... [Non-text...
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Kirsten
griffiki
Mar 22, 2011 5:20 pm
Stefan, We're testing to see if we can run an Enviro-based application on Windows Server 2003 R2. What I'm finding is when we load a tiled terrain it fails...
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Stefan Roettger
stefan.roettger
Mar 22, 2011 6:19 pm
This means, that the current OpenGL implementation/driver does not support 3D Textures (but probably 2D textures). This is may be due to a lo-end graphics card...
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Ben Discoe
bdiscoe
Mar 23, 2011 2:42 am
Hi Vijeesh, The generation of a scenegraph at runtime isn't slower, generally speaking. It does depend on whether you are talking about the terrain surface,...
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Ben Discoe
bdiscoe
Mar 23, 2011 3:12 am
If the only goal was to convert elevation to color, it could be done with a 1D texture, with no pixel shader. If that was sufficient then vtlib could save a...
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Ben Discoe
bdiscoe
Mar 23, 2011 4:37 am
Lars, If you could give a little more description of what you are trying to do, i'm sure i could suggest a solution. Specifically, which "web application" are...
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Lars Fricke
oldgreyeagle
Mar 23, 2011 7:35 am
Hi Ben, I was thinking of using VTP to generate a 3D scenario with plants which I then could use in a 3D Web app like Google Earth plugin or similar. Actually...
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Stefan Roettger
stefan.roettger
Mar 23, 2011 4:48 pm
The libmini viewer has a simple contour line pixel shader to experiment with. Just load any tileset with the viewer and enable the shader. For example load the...
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Kirsten
griffiki
Mar 24, 2011 2:19 pm
Thanks Stefan (and Ben), I'll take a look at the libmini viewer and let you know how it goes. Kirsten...
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Ben Discoe
bdiscoe
Mar 28, 2011 12:13 am
Hi Roger, ... Great! I spent some time today checking things out. I built and ran Enviro, fixed up some minor memleaks, tweaked my own project files to bring...
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Ben Discoe
bdiscoe
Mar 28, 2011 1:20 am
Lars, You need to be very specific about what you attempting; a plugin "like" GE will not be similar to GE, in how to export data to it. If your specific goal...
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Pascal
magellani
Mar 28, 2011 2:53 pm
Hi Ben, as I got problems running Enviro on openSUSE (I think the grafic driver is not yet very stable) I switched to windows 7. Two questions: * What are the...
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Ben Discoe
bdiscoe
Mar 28, 2011 4:02 pm
Pascal, I'm currently using OSG 2.8.3, libpng 1.5.0, and libMini 9.9.2. However, generally, version numbers are not too important. If you have older versions...
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Bram van Rooij
bram_vanrooij
Mar 29, 2011 1:30 pm
Hello group, I'm fairly new to VTP and I've ran into a problem. I want to use the roof function of VTBuilder on my shapefile. On some buildings it adds a roof,...
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Pascal
magellani
Mar 29, 2011 2:38 pm
Hi Ben, that works great, thanks a lot! Now I got an issue that I already read somewhere else concerning the path to texture files from within ac3d-files. I...
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Roger James
rogerjames99
Mar 29, 2011 4:14 pm
... By "roof function" do you mean the "Roof type:" fields in the "Import Structures" dialog. If so then this only sets the edge slopes of the top most level...
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Ben Discoe
bdiscoe
Mar 30, 2011 4:48 pm
Pascal, I'm not certain whether you want to extend OSG's path, or VTP's path. Both are possible. With OSG, set the OSG_FILE_PATH environment variable. With...
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Pascal
magellani
Mar 31, 2011 6:28 am
I got a problem when using a shp-file (containing points that are connected by lines to represent conductor lines) embedded in an abstract layer. The LOD...
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Ben Discoe
bdiscoe
Mar 31, 2011 4:44 pm
Hi Pascal, The behavior you are seeing is correct: pixel size is pixel size, regardless of distance. This is just how 3d graphics cards draw line primitives. ...
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Pascal
magellani
Mar 31, 2011 6:11 pm
Hi Ben, thanks for that hint. I will do it then using triangles or quads (the conductor lines are normally merely visible). Should I use the itf file format to...
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Ben Discoe
bdiscoe
Apr 1, 2011 1:06 am
Pascal, I do not recommend solid geometry for wires. See the recommendation below about anti-aliasing. -Ben ... to ... about ... fence ... to ... than 1...
