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[Solved] how to add an opacity mask to a smart material

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Hi, I have an an opacity mask I made in Photoshop.

I want to add it to a smart material so it only effects the parts I want to be effected by the mask.

Can you tell me how to do this or is there a tutorial available?

Cheerio

lululee

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Hope it help

 

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Hi Carlosan,

I watched this tutorial a number of times.

He is "painting" on the layers. I want to bring in a premade alpha mask so this is no help to me.

Cheerio

lululee

 

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Ah ok, please check this.

In the video you will learn how to import an texture to be used as layer transparency information (Alpha channel) inside 3D Coat. At the moment actually it is not possible to import alpha informations directly into 3D Coat but I show a short workaround to do it anyway.

 

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I find this is really confusing.

I can't get it to work.

To me this is a real drawback to texturing in Coat if one uses a lot of alphas.

Cheerio

lululee

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I'm going to keep at this until I figure it out because I really like 3dCoat.

I'll just have to watch the video a few more times.

Thanks so much for all of your help.

Cheerio

lululee

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On 7/8/2019 at 4:41 PM, lululee said:

Hi Carlosan,

I watched this tutorial a number of times.

He is "painting" on the layers. I want to bring in a premade alpha mask so this is no help to me.

Cheerio

lululee

 

At the bottom of each layer in the Smart Material Editor, is a MASK channel where you would import an alpha channel mask. Have you tried that?

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Mask.jpg

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Hi,

   I apologize taking so long to get back to this. I was away from the computer.

With all of your help I think I am getting close to understanding how to work with the masks.

I still haven't got it to work but I think there must be a step I'm missing.

I'm attaching some files.

The first one shows the basic concept. Different smart material layers masked off. I did this in photoshop so you can see what I am trying to do.

I put the mask in the mask channels in 3dc but they did not mask properly.

I truly appreciate all of your help.

Cheerio

lululee

Goal.jpg

Mask-Center.jpg

Base.jpg

Mask.jpg

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Try switching Preferred Mapping to UV mapping

image.png

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For what you are trying to do, would it not be best to simply paint a freeze mask on the model and apply the Smart Material like normal? I thought you may have had some particular pattern stretched across a map, but you seem to want specific placement on the body. That's what a freeze mask is for.

 

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Hi,

Carlosan,

    Thanks sooooo much.  I did get it to work once I changed the mapping.

Hi

AbnRanger

 I am impressed with the ability to use the freeze. I did not know what the tool did.

Excellent video. I will experiment with this. I think this will be very useful and it really opens up

a lot of possibilities.

Thanks so much for all of your help.

Cheerio

lululee

 

  

 

 

Cheerio

lululee

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Hi,

How to export textures.

Now, I have the mask applied with the first method.

When I export the the textures with either the "Export objects or textures" or "Edit all layers in external editor"

Only the bottom layer comes in.

How do I export the textures to keep the masks in place?

Cheerio

lululee

TS_Torso_BaseColor.jpg

Leotard.jpg

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Use this please

Export.jpg

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Hi,

   That's what I did.

You can see by the image "Here's all that shows" that it did not bring in the image with the mask.

It only saved the flat image of the denim.

Do I have to do something special to get it to save both?

Cheerio

lululee

 

 

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Try textures > Export

 

Export.jpg

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Ok, I am trying to understand... You want to export a white mask to be used in another application to apply a different texture to the model in the mask area.

If that is the case. Create the mask on a different layer. Fill the mask area with white. Hide all other color layers. Under the texture window, use export color/albedo. Only the mask layer will be exported.

if the above does not meet your need, I endeavored to understand what you wanted.

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21 hours ago, digman said:

I see I did not look to close at your problem. My answer does not relate to you specific problem. 

You created the mask. Filled the mask with a texture but upon export the masked filled area is not exported in the final uv texture map. Is this correct. Can you share the 3DC file so I can look at it.

 

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Hi,

First, Thank all of you who have taken your valuable time to help me with this learning curve.

What I am trying to achieve:

I am working in Daz. I did a  sculpt in ZBrush with the Genesis 8 model .

Now I want to paint the model in 3dc with my ZBrush normal map. No problems with that part.

The attached model is an grainy test render of a leotard I am working on.

Because I cannot make seperate material zones on the on the Genesis 8 template I have to render in Daz with 1 geometry shell that is leather and a second geometry shell that is metal.

Very clumsy and time consuming for the user and too much development time.

A lot of my sculpting is done in ZBrush  with masks. I want to use the masks because they are precise for my sculpts.

In 3dc I am trying to:

1-fill a layer with smart material leather

2-add a new layer of smart material metal and use my mask show the metal masked over the leather.

That should leave me with a material like the attached image.

I am having problems getting the mask to work properly ( I think there may be something making it tile?)

Also when I export with the "Export objects and textures" only 1 flattened layer on the bottom shows up, not the masked part.

I did get a win using the freeze tool but I do not know how to use a mask with the freeze tool. I really need the masks because they are

precisely where I want the metals to line up with my ZBrush sculpt.

I hope this is doable. I really appreciate all of your help.

Here is the link to my 3dc files

www.moon-dragon.com/lululee/Testing/07-14-Lululee-Coat.zip

Cheerio

lululee

 

 

 

07-14-Test.jpg

Edited by lululee
clarify

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