[PD] [GEM-dev] Blending mode directly on objects, not pixes?

[Max]

make the rectangle transparent with the alpha channel

[alpha]

&

[colorRGB] <- use last inlet to control the alpha 0...1


Am 28.11.2009 um 17:53 schrieb Matteo Sisti Sette:

> Hi,
> 
> Now, I don't know if this is possible at all.
> 
> Suppose I have a [rectangle] (or whatever primitive indeed) with a texture, and something behind the rectangle.
> Is it possible to have the rectangle "blend" with the background with some blending mode (such as add, multiply, etc)?
> (without having to render all the rest of the scene except the rectangle into a texture via gemframebuffer, and then blending the two textures with pix_add and friends)???
> 
> Isn't it a matter of shaders? I guess it could be achieved using openGL functions... but is there a "simple" way?
> 
> Thanks
> m.
> 
> 
> -- 
> Matteo Sisti Sette
> matteosistisette at gmail.com
> http://www.matteosistisette.com
> 
> _______________________________________________
> GEM-dev mailing list
> GEM-dev at iem.at
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