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fixup font lookup, solving off-by-one-pixel issue
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@ -253,7 +253,7 @@ static const char *text_fragment_shader = "\n\
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character = character - 224u + 64u;\n\
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character = character - 224u + 64u;\n\
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else \n\
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else \n\
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character = 33u;\n\
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character = 33u;\n\
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uvec2 inglyph = uvec2(uint(raster_coords.x) % 7u, uint(raster_coords.y) % 8u);\n\
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uvec2 inglyph = uvec2(uint(raster_coords.x) % 7u + 1u, uint(raster_coords.y) % 8u);\n\
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uvec2 infont = inglyph + uvec2(0, character * 8u);\n\
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uvec2 infont = inglyph + uvec2(0, character * 8u);\n\
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uint pixel = texture(font_texture, infont).x;\n\
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uint pixel = texture(font_texture, infont).x;\n\
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float value;\n\
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float value;\n\
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