Hi Markus,
osgTerrain does set CLAMP_TO_EDGE on all textures it generates, but in
your code you don't even try to use osgTerrain's built in texturing,
rather you go and create your own textures for some reason.
The right way to do what you want is to simple create an ImageLayer
with the
Hi Markus,
On Sun, Jul 26, 2009 at 2:14 AM, Markus Husseinimar...@husseini.de wrote:
@robertosfield: Can i use the Imagelayer to load the heigthmaptile form an
heightmapimage too?
Sorry I don't understand what you mean. An ImageLayer is an
osg::Image Layer, you use it with an osg::Image...
Hi Markus,
How did you create this model? What texturing if any are you
applying? Is it one mesh? Its it many? You *really* have to
provide more specific information about what you did to create this
model, and also the hardware/OS you are using as all provide clues to
what might be up as
@robertosfield: Itry to explain it but my English is not very well.
The Terrain is loadet by many heightfields. The black lines u see are the
borders form the singel heightfieldmeshes. Every Heightfield mesh has his own
texture, because i dont know how i can load a textur to the whole Terrain.
So hi again.
Now i tryed the osgTerrain Nodekit. To gernerate my Terrain. i greated 2
TerrianTiles. But now the whole Terrian is very dark. Look at the code pls and
picture:
Sorry but the code tag dont work right.
osg::ref_ptrosgTerrain::Locator Locator1
Ok i fixed it i forgett to define a color layer.
But the border ist also black between the Terraintiles.
Please help
[Image: http://www.husseini.de/markus/Terrain4.jpg ]
--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=15453#15453
[mailto:osg-users-boun...@lists.openscenegraph.org] On Behalf Of Markus
Husseini
Sent: Sunday, July 26, 2009 12:13 PM
To: osg-users@lists.openscenegraph.org
Subject: Re: [osg-users] Terrain by Heightmap
Ok i fixed it i forgett to define a color layer.
But the border ist also black between
@robertosfield: Can i use the Imagelayer to load the heigthmaptile form an
heightmapimage too?
--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=15445#15445
___
osg-users mailing list
Ok now it works. Thanks a lot.
--
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=15327#15327
___
osg-users mailing list
osg-users@lists.openscenegraph.org
Hi Markus,
The OSG has an osgTerrain NodeKit dedicated to the task of rendering
terrain. All you need to do is create an osgTerrain::TerrainTile and
assign your osg::HeightField to this as the elevation layer, and then
assign an osgTerrain::GeometryTechnique to handle the actual rendering
scene
Thanks a lot again for the answers.
@Kim Bale: Your solution voice good. But i dont understand how i can get the
pixel height infomation from an image obeject. Can You give me a example code,
it would be very helpfull. If i have the Pixelinformation i can write my own
Terrainclass too.
osg::Image* img = osgDB::readImageFile(name);
unsigned char pixel = img-data( x, y );
But as Pierre says, OSG offers a lot of support for rendering Height field
data out of the box. It's worth digging around before reinventing the wheel
as OSG has usually got there first.
Regards,
Kim.
Hi,
i did this
Code:
osg::Image* img = osgDB::readImageFile(test.tga);
osg::ref_ptrosg::HeightField heightmap = new osg::HeightField;
for(int z=0; z256; z++)
{
for(int x=0; x256; x++)
{
heightmap-setHeight( x, z, img-data( x,z ) );
Hi Markus,
Take a look at the documentation online:
http://blogninja.com/doc/openscenegraph-doc/openscenegraph/classosg_1_1HeightField.html
http://blogninja.com/doc/openscenegraph-doc/openscenegraph/classosg_1_1HeightField.htmlShould
answer your questions. OSG function names are in general
Hello,
I want to create a Terrain form a heightmap picture. Does someone know a good
tutorial or can explain me the steps to realize this problem with osg.
I am sitting here the whole day and search for tutorials or something else but
i cant find something.
I would be happy for your help.
Hi Markus
Take a look at VirtualPlanetBuilder :
http://www.openscenegraph.org/projects/VirtualPlanetBuilder
Regards
--
Christophe Loustaunau
On Wed, Jul 22, 2009 at 9:33 PM, Markus Husseini mar...@husseini.de wrote:
Hello,
I want to create a Terrain form a heightmap picture. Does someone
Or for a more hands on approach try:
http://www.lighthouse3d.com/opengl/terrain/index.php3?heightmap
http://www.lighthouse3d.com/opengl/terrain/index.php3?heightmapIt's a pure
OGL example but it should be pretty simple to translate for use in OSG.
Good luck.
Kim.
2009/7/22 Markus Husseini
Thanks for the answers.
@declic creation: I think this is a little bit to much for my project.
@Kim Bale: This looks nice, but my problem is that i have to use the osg API
only and there I need the opengl libs ;(. Or i must write my own Code to load
an image and get there data.
I read
Hi Markus,
Assuming you're using a simple grayscale image as your heightmap. A very
quick way would be to use the osg::HeightField shape in conjunction with the
osg::ShapeDrawable class.
You would load the image into an osg::Image class and then extract the
height information, in this case the
2009/7/22 Markus Husseini mar...@husseini.de:
Thanks for the answers.
@declic creation: I think this is a little bit to much for my project.
@Kim Bale: This looks nice, but my problem is that i have to use the osg API
only and there I need the opengl libs ;(. Or i must write my own Code to
2009/7/22 Pierre BOURDIN bour...@imerir.com:
2009/7/22 Markus Husseini mar...@husseini.de:
Thanks for the answers.
@declic creation: I think this is a little bit to much for my project.
@Kim Bale: This looks nice, but my problem is that i have to use the osg API
only and there I need the
21 matches
Mail list logo
