I have made a building and texture for it. I want to make this building for a night scene, which means that I want it to glow or emit light from the window to look realistic. Is it possible to make it glow or emit light from the texture?

Texture Building

screenshot of texture building

Night Render view

dark screenshot with paint lines indicating the desired glow result


screenshot of currently used nodes

What extra nodes should I add to give a light or emission glow from the window?

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    $\begingroup$ blender.stackexchange.com/questions/90064/… $\endgroup$ – Duarte Farrajota Ramos Aug 21 '18 at 4:08
  • $\begingroup$ @DuarteFarrajotaRamos its not glowing.Is there any node like photoshop eye dropper click and separate glow for that shade. $\endgroup$ – atek Aug 21 '18 at 5:40
  • $\begingroup$ select all the windows and assign them an Emission node, and in the Compositing, give this layer a glow effect $\endgroup$ – moonboots Aug 21 '18 at 7:18
  • $\begingroup$ @moonboots i think you did not get what i mean. The building has a single texture how the windows can be selected separately. $\endgroup$ – atek Aug 21 '18 at 8:24
  • $\begingroup$ @p2or but i have texture not just plane material $\endgroup$ – atek Aug 21 '18 at 9:26

Try to bake the building texture to an image and then create an alpha map. Make the window areas white filling the white color in photoshop(precisely) and everything else being dark black...

then load this image as texture in (cycles)Node editor . Mix two shaderes

DIFFUSE -----+-----EMISSION And connect the alpha map to the factor input.. I hope this will help...

there may be other ways to do this, I told you the easiest as it seems to me.

(Even I am learning Blender, so there may be some better solution to it, but I am willing to help with how much I have to share.)

Good luck


Just tweaking with the simple nodes i got this result and satisfied what i need

enter image description here

With the RGB-BW and color ramp i mix it and with emission.

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    $\begingroup$ In your current setup, all the surface that is not emitting is staying black (shadeless). Put a Diffuse Node with the texture into the middle input of the Mix Shader node to have it back. $\endgroup$ – Nicola Sap Aug 21 '18 at 9:26
  • $\begingroup$ @NicolaSap you mean between coloramp and mix shader i have to insert a diffuse node $\endgroup$ – atek Aug 21 '18 at 9:28
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    $\begingroup$ no, in the green empty spot in the Mix shader $\endgroup$ – Nicola Sap Aug 21 '18 at 9:37

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