Add to backdrop limit?

[mobichan]

Is anyone aware of a limit to the number of backdrops you can create from an active object? I have a custom blitter that seems to be hitting some kind of character limit. It blits from a string variable that is populated by a long expression that pulls data from an ini object. But it seems to stop blitting if the string is too long.

[nivram]

Is anyone aware of a limit to the number of backdrops you can create from an active object? I have a custom blitter that seems to be hitting some kind of character limit. It blits from a string variable that is populated by a long expression that pulls data from an ini object. But it seems to stop blitting if the string is too long.

Reg, I don't know if this is what you need but the number of backdrops limit per frame is 65, 536.

Marv

[mobichan]

Hmmmm... I am definitely not hitting that limit. Is it possible that too many complex expressions stored into a string will bork something?

[Konidias]

Don't strings have character limits?

It's not because your object limit is set to the default 500 is it?

[Pixelthief]

The number of created backdrops is limited at the same as the number of active objects, something you can adjust in frame properties. By default this is 500, isn't it? However created backdrops do not contribute to this counter and will be limited only with backdrops, its just one maximum for both. You can set this value up to 20,000 and there is no actual detriment or wild amounts of space allocated up until you actually create enough objects at runtime.

However it might not be your problem, strings have character limits in mmf2 as does the expression editor, which might need you to break extremely large expressions into multiple chunks. As far as I'm aware, the text blitter doesn't actually have the same character limit and uses its own char array instead of the mmf2 string types, so that shouldn't be your issue

[mobichan]

I have an active blitter that can blit glyphs as actives or backdrops. Both have the same issue. And as suggested I have been breaking my blit strings into chunks but the problem still persists. It is kind of weird that this problem has begun to rear its ugly head since I have blitted large chunks of text before but they were coming from a list object. I will try a few other tests but thanks everyone for the info.

[Pixelthief]

Now that I think about it, there might have been a limit on how many backdrops you can add in a single frame of drawing, too.