> I'm currently doing some rendering of game models by exporting through 
> MilkShape, and while the basic textures work fine, I'm having some color 
> issues. I've found that in the game itself, the same image can be loaded 
> for multiple textures, then multiplied by a solid color to give it a 
> different hue/brightness.
> 
> Is there any way to do this in povray, without having to manually edit 
> the .tga files in gimp/photoshop? (I've converted them from .dds to 
> .tga, but could use other formats if it would make it easier). The 
> majority are multiplied by a <0.6,0.6,0.6> color which at first glance 
> is the same as applying 'diffuse 0.6', except many textures also have 
> ambient and this doesn't affect the color of that. Also, some have 
> non-gray colors, which I can't do with a simple diffuse statement.
> 
> Thanks!
> Cshake
> 
> An example of the textures generated by the exporter:
> -----------------------------------------------------
> #declare uvtexture_0 = texture{
>   uv_mapping pigment{
>     image_map{
>       tga "hw_p2_fr1.tga"
>       map_type 0
>       interpolate 2
>       transmit all 0.000000
>     }
>   }
>   finish{
>     ambient rgb <0.200000 0.200000 0.200000>
>     specular 0.100000
>     roughness 0.000781
>   }
> }
If you use that texture in a radiosity scene, you must replace the 
ambient by ambient 0. Otherwise, it will actualy illuminate it's 
surrounding.

In some cases, you can use a layered texture.
Use a fully transparent uper texture with some transmit or filter, like:
pigment{rgbf <1, 0.5, 0.1, 1>}
This will add an orange cast to the underlying pigment.
You can use a filter or transmit larger than 1 to create some 
interesting effect.
You can use a negative filter or transmit. It result in a negative effect.


Alain

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