Hello Sajjadul,
Sajjadul Islam wrote:
> Hello,
>
> I am trying to generate height map terrain by reading a tga file.
you might want to take a look at the code in Source/Contrib/Terrain (by
default it is not compiled into the library though - see
Source/Contrib/README).
> Is there any function within Image class to detect if the image read
> is RGB image or greyscale
Image::getPixelformat() returns the format of the data stored in the
image (see Source/System/Image/OSGImage.h for possible values). For a
greyscale image it would be OSG_L_PF, for RGB OSG_RGB_PF and for RGBA
OSG_RGBA_PF.
> and if it is an RGB is there any functionality
> to convert that to greyscale image?
You can use Image::reformat to convert to a different pixel format; it
will do a pretty simple conversion, nothing fancy.
Hope it helps,
Carsten
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