Font baking issue.

[DampireX]

Seems like a font baking via stbtt is quite broken. This is how looks the default font with default settings on SDL3 on GPU side. Custom TTF fonts looks the same - unnecessary wide.

[DampireX]

For an unknown reason nk_font_config::oversample_h is 3 while nk_font_config::oversample_v is 1. After specifying it manually texture is crisp and clear. Renderer is still blurred, but I've just fixed it through fixing text metrics to int.

        /* calculate and draw glyph drawing rectangle and image */
        gx = x + int(g.offset.x);
        gy = rect.y + int(g.offset.y);
        gw = int(g.width); gh = int(g.height);
        char_width = int(g.xadvance);
        nk_draw_list_push_rect_uv(list, nk_vec2(gx,gy), nk_vec2(gx + gw, gy+ gh),
            g.uv[0], g.uv[1], fg);

[sleeptightAnsiC]

Hah, I remember hitting this some time ago, and was wondering if this is a bug or some rendering trick. I still have a screenshot of it from that exact moment. Thanks for reporting this.

[DampireX]

I wonder why all layout engine is not pixel perfect. It will fix any blurring artifacts and even simplistic AA approach of stbtt font rasterizer will look like okay.