 
    Not wanting to double-post anything, I thought it best to come here.
@Grabandt requested a Pool Party type of scene so... I made one. Basic stuff really. I took a static background image that Grabandt provided and I cropped/resized it to 1920 x 1080 or 16:9 ratio. So far so good. I then tried numerous ways to make the girls look like they're really in the pool. As I said in his other thread, not a simple task :( 
So, I made a mask image of the lower part of the background, cutting out the water and reflected the 2 models' clipSprites, hoping to make it look more natural and no reflections on the pool's tiled area. (BTW, I'm intending to try a couple of shaders to make the reflections 'jiggle' around a little so it looks more realistic. Bear with me on that :) )
My problem is, I can't for the life of me figure out where to put the Mask code so that it covers the poolside tiling and the reflections only show in the water.
It's been a while since I made a new scene and I've gone thru the PPS .scn code, ET's stuff, No'6's stuff. I thought I'd done it all correctly :(
Anyway, I've triple checked my file naming and all seems to be correct.
Here's the scene code...
clip {
 id: Clip Left
 allow: behindtable
}
clip {
 id: Clip Right
 allow: behindtable
}
////////////////////////////////////////////////////////////////////////////////
texture {
 id: Pool
 source: Images\Pool Party1.jpg
}
texture {
 id: Mask
 source: Images\Mask 1.png
}
////////////////////////////////////////////////////////////////////////////////
camera {
 type: 2D
 pos: 0, 0
 size: 800, 450
//Background
 sprite {
 pos: 0, 450
 hotspot: 0, 1
 source: Pool
 opacity: 1.0
 size: 800, 450
 material: false
 blend: false
 resolution: 20
}
//Left Model Clip
 clipSprite {
 pos: 160, 340
 source: Clip Left
 standingHeight: 320
 resolution: 20
 material: false
}
//Left Model Clip Reflection
 clipSprite {
 pos: 160, 340
 source: Clip Left
 standingHeight: 320
 opacity: .1
 Rot: 180,0,0
}
 clipNameSprite {
 pos: 160, 400
 scale: 0.25
 hotspot: 0.5, 1
 source: Clip Left
} 
//Right Model Clip
 clipSprite {
 pos: 620, 340
 source: Clip Right
 standingHeight: 320
 resolution: 20
 material: false
 scale: -1, 1, 1
}
 
//Right Model Clip Reflection
 clipSprite {
 pos: 620, 340
 source: Clip Right
 standingHeight: 320
 opacity: .1
 Rot: 180,0,0
 scale: -1, 1, 1
}
 clipNameSprite {
 pos: 620, 400
 scale: 0.25
 hotspot: 0.5, 1
 source: Clip Right
}
 sprite {
 pos: 0, 450
 hotspot: 0, 1
 size; 800, 450
 source: Mask
} 
}
Any help would be much appreciated, guys. I'm tearing out my hair here!
A snap of the scene...