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2D All the way! / Hidden sprites

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Old Wrinkly
23
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Joined: 14th Dec 2002
Location: Nth Devon UK
Posted: 16th Sep 2004 05:31
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If I Hide a sprite when it is offscreen, does it use less memory than if I don't Hide it.

OldWrinkly
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IanM
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Joined: 11th Sep 2002
Location: In my moon base
Posted: 17th Sep 2004 03:55
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Nope. It just stops the sprite being drawn

*** Coming soon - Network Plug-in - Check my site for info ***
For free Plug-ins, source and the Interface library for Visual C++ 6, .NET and now for Dev-C++ http://www.matrix1.demon.co.uk
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Old Wrinkly
23
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Location: Nth Devon UK
Posted: 17th Sep 2004 04:35
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Thanks Moderator, but if it is not being drawn, does it increase the speed of those that are being redrawn in an animation.

OldWrinkly
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IanM
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Posted: 17th Sep 2004 05:29
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Yes, unless it was already positioned off-screen in which case it was already not being rendered.

*** Coming soon - Network Plug-in - Check my site for info ***
For free Plug-ins, source and the Interface library for Visual C++ 6, .NET and now for Dev-C++ http://www.matrix1.demon.co.uk
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Old Wrinkly
23
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Joined: 14th Dec 2002
Location: Nth Devon UK
Posted: 17th Sep 2004 18:08
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Thanks Moderator.
The reason I ask this is that I want to produce a seamless scrolling backround with a 3d effect.
To do this, I have 2 pair of 1200x480 bitmaps with black transparency.
As sprites I scroll one pair accross the screen and as one moves off screen to the left, it rejoins the other on the right and so on.
I then have the other pair do the same thing in the background, running at a different speed, which is seen through the front one.
I then have my animated sprites running at different levels.
The whole thing gives quite a good 3d effect but is obviously quite slow.
I have tried Deleting off screen and recalling them as need be.
It works OK but I am not sure if it helps. I only have the basic DB to work with. Thank You

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