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I put a UV Project Modifier on a Suzanne. I added an image plane with the texture I want to project onto Suzanne and positioned it.

Image plane pointed at Suz

Note: The texture is not showing as transparent in the screen shot because I forgot to check the settings for that in the menu when I used the Add Images as Planes add-on, but trust me that the texture does have alpha data.

I UV unwrapped Suzanne. The Image plane is already UV unwrapped because the add-on takes care of that. In the modifier's settings I specified the image plane as the projector object. I specified the UV map to be the only one that exists on my Suzanne ("UV Map"). I did not specify an image because I understand this is for Blender Internal only (correct me if I am mistaken - also I tried this once just in case but it made no difference).

UV Project Modifier settings

I created a Cycles material for Suzanne that uses the image from the image plane, and specified the coordinates to be from Suzanne's the UV map (which I expected to be modified by the modifier). The alpha from the image is supposed to factor between a plain Diffuse Shader and a textured one. However, nothing is showing up at all and although I read the Blender manual page on the UV Project Modifier I did not glean any answers from it. Can somebody please tell me what I've missed?

My material setup for Suzanne

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  • $\begingroup$ I've never used the UV project modifier, but I think you can accomplish what you are trying to do using object coordinates. $\endgroup$ – PGmath Oct 27 '15 at 3:53
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You need to select the image to use in the UV project modifier and enable Override image. Your Diffuse nodes need to be flipped:

enter image description here

enter image description here

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  • $\begingroup$ Thanks! Any idea how to get it to use the size of the image plane? On the model it's showing up much larger, which is unexpected. $\endgroup$ – Mentalist Oct 27 '15 at 16:01
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    $\begingroup$ the size of the texture is determined by the projector. Of you resize it the texture,will be resized in the,other object as well $\endgroup$ – cegaton Oct 27 '15 at 16:24

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