Burst effect with opacity on Android

[error454]

If using burst effect where effect map 0 contains opacity, the burst map is not visible on Android devices (Tegra 3). This is with the texture alpha mode set to Opacity.

You can make the burst map visible if you either:
* Set alpha mode to Effect Map 1 Mask and turn up alpha ref
* Set alpha mode to Opacity Ignored

[lcocea]

Thank you, good tip. Also works on iOS.