FGFS-4.1/OpenSceneGraph
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Updated wiht OpenSceneGraph-Data/shader version that introduced use of textureLOD to reduce aliasing artifacts with SDF

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Robert Osfield
2017-09-26 10:57:09 +01:00
parent 845e1d4463
commit ca5a8a81a2
1 changed files with 3 additions and 1 deletions
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4
src/osgText/shaders/text_sdf_frag.cpp
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@@ -25,9 +25,11 @@ char text_sdf_frag[] = "$OSG_GLSL_VERSION\n"
"\n"
"#if __VERSION__>=130\n"
" #define TEXTURE texture\n"
" #define TEXTURELOD textureLod\n"
" out vec4 osg_FragColor;\n"
"#else\n"
" #define TEXTURE texture2D\n"
" #define TEXTURELOD texture2DLod\n"
" #define osg_FragColor gl_FragColor\n"
"#endif\n"
"\n"
@@ -68,7 +70,7 @@ char text_sdf_frag[] = "$OSG_GLSL_VERSION\n"
"#ifdef SIGNED_DISTNACE_FIELD_SUPPORTED\n"
"vec4 distanceFieldColor()\n"
"{\n"
" float center_alpha = TEXTURE(glyphTexture, texCoord).r;\n"
" float center_alpha = TEXTURELOD(glyphTexture, texCoord, 0.0).r;\n"
"\n"
" float blend_width = 0.005;\n"
" float distance_scale = 0.25;\n"