Correct way to sample from a texture array.

[Pryme8]

So what is the correct syntax to sample from a texture array?  The equivalent to: vec4 tile = texture2D(sampler, texCoord);

but for an Array not a single sampler2d.

I have tried : 
vec4 tile = texture3D(sampler, vec3(texCoord.xy, 0); 
and the webGL 2.0 version...
vec4 tile = texture(sampler, vec3(texCoord.xy, 0); 

But I keep dropping:
'texture' : no matching overloaded function found
ERROR: 0:37: '=' : dimension mismatch
ERROR: 0:37: '=' : cannot convert from 'const mediump float' to 'highp 4-component vector of float'

[Pryme8]

Ok I can sample it just fine now, but it seems to drop an error reguardless:

vec4 tile = texture(layers[0], texCoord);

works, but drops the error:
[15:11:42]: Error: ERROR: 0:37: 'texture' : no matching overloaded function found
ERROR: 0:37: '=' : dimension mismatch
ERROR: 0:37: '=' : cannot convert from 'const mediump float' to 'highp 4-component vector of float'

Which is the same error as:
http://www.babylonjs-playground.com/#NJRT3#4

Which was an example @Deltakosh put together to test texture arrays.

[GameMonetize]

"Texture" is now a keyword in webgl2:

https://www.babylonjs-playground.com/#NJRT3#10

[Pryme8]

had to change:

#ifdef LAYERS
uniform highp sampler2DArray layers[LAYERS];
#endif

to 
#ifdef LAYERS
uniform sampler2D layers[LAYERS];
#endif

>_<.... sometimes I feel dumb...