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[Solved] Opacity/Transparency


Cybergooch
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There's something I'm not understanding about opacity and the paint room...I've watched a number of tutorials dealing with things like glass shaders, etc.

But when I try to adjust the opacity of layer 0, or hide layer 0, or make opacity changes to layers above 0, nothing happens other than it getting lighter or darker.

I never see any variation in opacity, or being able to see through an object. Do I need to have some special view mode turned on?

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Carlosan
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About 3d coat, think opacity as  RBGA color alpha value.   To get opacity variation (add semi-transparent mat etc)

you only need to paint with alpha value. then when you hide layer 0  now you see semi transparent or full transparent with the layer color alpha value.

or you can set layer opacity , eg if you set layer 1 opacity value as 0.3,  then hide "layer 0" now you should see 0.3 alpha color of the layer. (semi transparent)

The reason why 3d coat keep "layer 0" as visible,,  it make user easy to color  (overwrite layer 0) mesh.. (layer 0 keep alpha as 1.0 (no transparent)  and color perfect 0.5 0.5 0.5 RGB) . if there is not layer 0,   you may not see any suface untill you import map, or actually paint on surface in anotther layer. it make us difficult to paint.

After paint or add smart material with alpha value,, hide layer 0, then export color (diffuese alberto)  map as RGBA (png, tiff etc)  Then the exported color  map keep alpha value.

or you can choose option to export  "Black and white opacity"  map  with RBG color map.

Use alpha value of color , or export as opacity map (black and white)  depend on which render aprication you may use.  

(though I suppose most of render engine and shader can use alpha of color map correctly)

Edited by tokikake
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Then if you can not get any transparent, even though you change layer 1 opacity as 0.5 etc, I suppose you have another top layer which paint over.   or you may change "color blend "way.  (in layer panell , you can choose how color will blend with below layer. default = Standard blend)

And if you show pic (SS) and discribe what you hope to do,  you may get more infomation I suppose.  (how color with opacity(alpha) with use stencill freeze mask,  or how use smart material with add mask etc):)

If it is only view render issue,  I suppose if you only need to set "backface Culling as OFF" and "Correct alpha ordering" in view menu.  like this.

getalpha.thumb.JPG.59b73583b75cffe5b91777dddc57fbce.JPG

 

 

Edited by tokikake
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  • Carlosan changed the title to [Solved] Opacity/Transparency

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