Glass Refraction Texture Needs Inversion?

[Nick Stinger]

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.

http://www.babylonjs-playground.com/#19JGPR#15

 

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.

 

[Sebavan]

Hello,

Using the probe, the refraction texture is inverted on Y, you are right. You may want to inverse it using this: glass.invertRefractionY = true;

http://www.babylonjs-playground.com/#19JGPR#16

Sorry to not have placed this in the documentation, I ll add it later today.

Thanks,

 

[Nick Stinger]

Working great and simple enough. Thanks for the help.