Pixel resolving and blurring ?
Posted: Fri Apr 22, 2005 14:31
by kristian
At release 2.0 Crazy Eddie wrote this line in the changelog:
Bug Fix: All imagery aligned to whole pixels resolving twinkling and blurring issues.
What is "whole pixels resolving" ? and what where the blurring issues ?
Where in the code did he change that ?
Re: Pixel resolving and blurring ?
Posted: Fri Apr 22, 2005 14:59
by lindquist
the CEGUIConfig.h has this setting:
Code: Select all
//////////////////////////////////////////////////////////////////////////
// Comment this line to remove the alignment of elements to pixel
// boundaries. This may give you a performance boost at the expense
// of visual quality
//////////////////////////////////////////////////////////////////////////
#define CEGUI_ALIGN_ELEMENTS_TO_PIXELS 1and then in CEGUIBase.h:
Code: Select all
/*!
\brief
Macro used to return a float value rounded to the nearest integer.
This macro is used throughout the library to ensure that elements are
kept at integer pixel positions on the display.
\param x
Expression to be rounded to nearest whole number
\return
\a x after having been rounded
*/
#if defined(CEGUI_ALIGN_ELEMENTS_TO_PIXELS)
# define PixelAligned(x) ( (float)(int)(( x ) + 0.5f) )
#else
# define PixelAligned(x) ( x )
#endifso... it means that everything is aligned to nearest-integer coordinates when renderered.
try commenting out the config... it makes quite a difference! there are screenshots in some of the older help-threads I think.