Hello Ekaterinam,
Thank you very much for your answers!
Sebastian, according to your last answer, does it mean that it is also possible
to project a texture on top of an object which has some other textures in it?
Which unit for a texture should then I use?
What I want to realize, is to
Thank you very much for your answers!
Sebastian, according to your last answer, does it mean that it is also possible
to project a texture on top of an object which has some other textures in it?
Which unit for a texture should then I use?
What I want to realize, is to mark on the terrain a
Hi Ekaterina:
Hello,
after checking more the forum, I have found another topic
http://forum.openscenegraph.org/viewtopic.php?t=9182=jotschi
with the following code, which I have slightly modified.
I would be very grateful, if someone can explain to me why the basic model is
black and how
Hello,
after checking more the forum, I have found another topic
http://forum.openscenegraph.org/viewtopic.php?t=9182=jotschi
with the following code, which I have slightly modified.
I would be very grateful, if someone can explain to me why the basic model is
black and how to avoid it?
Or
Ekaterina,
The model you are loading has a lot of state in it, like blending,
textures, etc. When you use a shader to render it, your shader needs to
support all the things that OSG would otherwise render using the GL
fixed-function pipeline. For example, the texture does not show up because
your
Hi Ekaterina,
post your code ... We can fix it when time permits ;-)
On Thu, Dec 22, 2016 at 4:27 PM, Christian Buchner <
christian.buch...@gmail.com> wrote:
> Just some wild guesses:
>
> You might have to enable blending in the state set, and set an appropriate
> blend function as (depending
Just some wild guesses:
You might have to enable blending in the state set, and set an appropriate
blend function as (depending on whether your projective texturing is done
in a 2nd render pass or not)
On hardware that does not support opengl border colors
(ARB_texture_border_clamp) in hardware,
Thank you your answers!
Attached there is a printscreen what I get.
For the terrain I am using lz.osgt and the image for the texture file is
osg128.png.
I set the border to transparent, but unfortunatelly it didn´t help...
Guys, could you please give me a hint how is it possible to relocate
Hi Ekaterina,
seems to me it is working properly, although it does not give you the
result you want.
The black surrounding is just a combination of the texture coordinates
going out of range combined with a CLAMP_TO_BORDER wrapping.
the numbers in gl_TextureMatrix[1] are the texture units - the
Ekaterina,
You might try setting your texture border color to transparent.
texture->setBorderColor(osg::Vec4(0,0,0,0));
The index in gl_TextureMatrix[1] is the texture image unit; it should match
the slot you specified in your call to
stateset->setTextureAttributeAndModes(1, texMat,
Hello,
I am trying to understand how to project a texture on a specific part of the
terrain. There are many examples how to project a texture on a whole object,
but not to a part of the oblect. That means the question is how to specify
texture coordinates (using the shader) on order to project
11 matches
Mail list logo
