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Glass Refraction Texture Needs Inversion?

Nick Stinger

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Still completely new to this, so I'm not quite sure how to get glass working right.

I took the glass reflection & refraction demo and added a square beneath the ball.



That square is not visible from the top of the glass ball, where I was hoping to see it. Rather, its visible from the bottom (like a reflection).

Both the dull reflected square and strongly refracted square are visible from the bottom.

I think I have to invert the refraction texture to make this work. In my case, I want to clone() the reflection texture, invert on the y axis, and then set the refractionTexture to the cloned texture. I see the Texture constructor has an inverty parameter, but the clone method does not (and probably should not) have an inverty parameter.  How can I invert the texture after I have cloned it?


Or perhaps I'm going about this the wrong way.

At any rate, thanks again for the help.


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