Hello 国梁,
please send your FreeType questions always to the e-mail list.
> Firstly, I want to use freetype to render fonts like the fonts on
> windows. I use the truetype fonts and load `msyh.ttf'. When I
> build `freetype.lib', I define FT_CONFIG_OPTION_SUBPIXEL_RENDERING.
> When I use FT_Load_char(), I set FT_LOAD_TARGET_LCD_V.
Really LCD_V? What output device are you using?
> When I use FT_Glyph_To_Bitmap(), I set FT_RENDER_MODE_LCD_V. I use
> the bitmap as a texture in openGLES. However, I cannot get very
> clear font on the screen when font is small (about setting 16
> pixels). I want get render effect like cleartype on windows.
I don't know what ClearType on Windows does with this font – please
send a (small!) PNG image that shows a sample, taken from your output
device. Usually, embedded bitmaps are used at font sizes <= 24ppem,
thus completely bypassing ClearType.
Werner
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