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I know nothing about Blender and I need to do a very simple 3D terrain with texture map.

I have a 1000 x 700 height map: enter image description here

And I have a 1000 x 700 texture map: enter image description here

And I want to combine them into a 3D model that I can view. I have done this before, about 8 years ago, in XNA but none of my old code will compile anymore under Visual Studio 2010.

I apologize that this is a very simple question. I'm not a CGI artist and I don't anything about Blender but I know that it can do this simple thing.

What are the steps to do this with Blender?

Thanks for posting the steps but I don't have Import -> images as planes. I just have this: enter image description here

Am I in the wrong place? Thanks in advance!

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Import the height map using Import images as planes.

Enter edit mode and subdivide the mesh like a 100 times.

enter image description here

Add a Displacement modifier.

enter image description here

Set the texture to use the height map. Set the color space to Non-Color (height maps should be treated as data, and have no "gamma" curves)

enter image description here

Don't worry if the displacement seems exaggerated for now.

Back in the displacement modifier, set the displacement axis to Normal and to use the UV map.

The height for the displacement can be conrolled moving the strength slider.

For a better level of detail add a subsurf modifier before the displacement:

enter image description here

(be careful not to set the subsurf modifer to a high number, 1 or 2 subdivision levels should be enough, otherwise you might end up with an unmanageable amount of vertices and your computer might slow down or crash)

Then assign the color texture image as the color for your material.

enter image description here

Why the funky edges on the surface? Your height map needs a bit of cleanup before doing all of this

NOTE:

Usually the import images as planes plugin is enabled by default. If it isn't, you'll have to enable it manually. In the top menu find Edit > Preferences. Then from menu navigate to the add-ons section and find Import-Export: Import Images as Planes.

To enable the add on check on the box to the left of the add on name:

enter image description here

For versions previous to 2.8 the settings can be found here:

enter image description here enter image description here

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    $\begingroup$ Or just scale down the UVs so the edges aren't used. $\endgroup$
    – David
    Jul 16, 2016 at 13:20

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