Author Topic: opacity map  (Read 1731 times)

airnan

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opacity map
« on: June 05, 2014, 01:21:14 pm »
June 05, 2014, 01:21:14 pm
Hello again,

I'd like to know if there's a way to actually use a short of opacity map in Lumion engine, or if it's even a posible feature that could be added to future versions.
I was thinking on how I could make a map that, for example, shows a mesh as a metallic mesh (one of those fencing meses, see attached image) without modelling a real 3D mesh, just using an opacity map.

Re: opacity map
« Reply #1 on: June 05, 2014, 03:16:23 pm »
June 05, 2014, 03:16:23 pm
Hi airnan, this is indeed possible.

You'll need to create a 32-bit texture with an 8-bit alpha channel that will act as a clipping mask.
Make sure that the diffuse texture is a 32-bit texture that includes the alpha channel, e.g. TGA/TIFF/DDS.

In Lumion, assign this texture to the first texture slot in a Standard material.

Then set the Reflection/Clip/Bright slider to 0.5, so that the alpha channel is used as a clipping mask.
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