Specular Map in a BumpedSpecular shader?

Anybody have a shader for this? Maybe I missed it somewhere? Really need to be able to map the specular channel of the shader with a texture map. Thanks in advance for any help.

Sincerely,

Gary

 

Hi, you should try the BumpColorSpec shader from the Unity Wiki: http://www.unifycommunity.com/wiki/index.php?title=BumpColorSpec

This use texture maps for the diffuse, normal and specular.

 

I'm confused. How does the Bumped Specular shader that ships with Unity not meet your needs here?

 

I missed that BumpColorSpec shader on the wiki. Thank you. Works perfectly!


The standard Bumped Specular does NOT have a specular channel that I can insert a specular map into. In other words I want to vary the specularity on the surface by having areas more shiny than others. The default shader has specular but it is only color and shininess. Does that make sense?

 

As far as I remember, indeed it has that supports, it just works efficientely (and the common way it is done) by using the alpha channel for it which has otherwise no purpose.

using distinct maps and that way 4 unused color channels in total is a great way to waste rendering performance

 

Thanks everybody. I understand that now.

Gary

 

Useful side note. Unity doesn't use the alpha for specular mapping with Targa files, but it works with TIFFs.

 

Sorry to revive an old thread, but how would one go about taking a diffuse texture and edit the alpha levels of it for Bumped Specular shader?

Example: I have a PSD file that I'm using as the diffuse map. Would I just open it up in Photoshop and start messing around with opacity of parts that I want to respond to shininess? Would I leave the layer underneath black, or fill it in with white or black?

 

Selecting the texture in the Project panel, there is an "Alpha from Grayscale" checkbox in the inspector.

 

Having the same problem. I'm not to familiar with channels.

I've checked Alpha from Grayscale but it just makes everything a little shiny.

I'd like to have only the skin shiny, and the cloth not.

Any tips?

 

How do I get BumpColorSpec shader to install/work?

 

The best way to do this (the way to get the best results anyway) is to create a new Photoshop (or whichever image editor you use) file - or better yet, a new layer group - and create your custom spec map there. When done, copy it (copy merged) and paste it into the alpha channel of your diffuse map.

 

Thx a lot for that answer for there's no more struggles for me, I'm using alphas now ^^