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Dark GDK / Fading a bitmap background

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Ca11um

Years of Service

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Joined: 3rd Jul 2010

Location:

Posted: 5th Sep 2011 09:43

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I am trying to fade my background onto the screen over a duration of 2 seconds. The code I'm using (below) just makes the bitmap instantly appear fully visible, but I fail to see why. Hopefully you guys will know what my problem is.

+ Code Snippet

bool MenuCreated;
int MenuFadeStart,fade;

void Menu::RenderMenu(void)
{
	if(MenuCreated == false)
	{
		dbLoadBitmap("menu.bmp",0);
		dbFadeBitmap(0,0);
		MenuFadeStart = dbTimer();
		MenuCreated = true;
	}
	fade = (100/2000)*(dbTimer()-MenuFadeStart);
	dbFadeBitmap(0,fade);
	dbText(1,1,dbChr(fade));
}

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Hawkblood

Years of Service

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Joined: 5th Dec 2009

Location:

Posted: 7th Sep 2011 00:08

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I think bitmap stuff is broken in DGDK....?...
I would use a black background with a plane (made to face the camera and exactly the size of the view). Use dbSetAlphaMappingOn(obj,%).

The fastest code is the code never written.

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