I'm at basic level in Terragen and having spent 4 days trying to crack this nut I figured I should ask you guys if what I'm attempting is even possible.
Is there a way to add specular highlights over an image texture? The first attached picture shows a wood grain image UV mapped to an object, the second is based on Hannes' 'fake wood' preset. I'm trying to get somewhere between these two images - a polished wood appearance (with a bump channel). It seems to me that when an image texture is added to an object surface shader, the specular channel is disabled.
I think there might be a way of doing it with layers but, honestly, I don't know how to achieve this, nor do I have much idea how to construct a shader tree. I've looked in vain for tutorials that might help but there doesn't seem to be much out there. Any help would be greatly appreciated. Thanks.