diff options
Diffstat (limited to 'shaders/prebuilt/ui.frag.glsl')
| -rw-r--r-- | shaders/prebuilt/ui.frag.glsl | 60 |
1 files changed, 0 insertions, 60 deletions
diff --git a/shaders/prebuilt/ui.frag.glsl b/shaders/prebuilt/ui.frag.glsl index 2113f6ae..ddc1cde0 100644 --- a/shaders/prebuilt/ui.frag.glsl +++ b/shaders/prebuilt/ui.frag.glsl @@ -23,31 +23,6 @@ float cellNoise(uint serial, uint col, uint row) { return float(x & 0xffffu) / 65535.0; } -float asciiGlyph(vec2 uv, int glyph) { - vec2 p = uv * 2.0 - 1.0; - float thin = 0.12; - float dotShape = 1.0 - smoothstep(0.10, 0.20, length(p - vec2(0.0, 0.45))); - float barH = 1.0 - smoothstep(thin, thin + 0.08, abs(p.y)); - float barV = 1.0 - smoothstep(thin, thin + 0.08, abs(p.x)); - if (glyph == 0) return dotShape; - if (glyph == 1) return max(dotShape, 1.0 - smoothstep(0.10, 0.20, length(p + vec2(0.0, 0.45)))); - if (glyph == 2) return max(barH, barV); - if (glyph == 3) { - float d0 = 1.0 - smoothstep(thin, thin + 0.08, abs(p.x - p.y)); - float d1 = 1.0 - smoothstep(thin, thin + 0.08, abs(p.x + p.y)); - return max(max(d0, d1), max(barH, barV)); - } - if (glyph == 4) { - float rails = max( - 1.0 - smoothstep(thin, thin + 0.08, abs(abs(p.x) - 0.34)), - 1.0 - smoothstep(thin, thin + 0.08, abs(abs(p.y) - 0.34)) - ); - return rails; - } - float ring = 1.0 - smoothstep(thin, thin + 0.08, abs(length(p * vec2(0.8, 1.0)) - 0.48)); - return max(ring, glyph == 6 ? dotShape : 0.0); -} - void main() { float a = texture(u_atlas, v_uv).r; bool oldLayer = (v_effect.x & 0x80000000u) != 0u; @@ -69,41 +44,6 @@ void main() { return; } - // 4 = ASCII materialization. A diagonal/noise threshold matches the TTY - // compositor's idea: cells briefly become punctuation, then their real - // atlas glyph arrives. The procedural marks keep the GUI implementation - // entirely shader-side. - if (effect == 4u) { - if (progress <= 0.0) { - if (!oldLayer) discard; - o_col = vec4(cell, 1.0); - return; - } - if (progress >= 1.0) { - if (oldLayer) discard; - o_col = vec4(cell, 1.0); - return; - } - float diagonal = float((cellCol + cellRow * 2u) % 17u) / 17.0; - float threshold = noise * 0.72 + diagonal * 0.28; - if (progress >= threshold) { - if (oldLayer) discard; - o_col = vec4(cell, 1.0); - return; - } - if (progress + 0.22 >= threshold) { - if (oldLayer) discard; - int glyph = int(floor(noise * 7.0)); - float ink = asciiGlyph(v_cell_uv, min(glyph, 6)); - vec3 dimInk = mix(v_bg, v_fg, 0.62); - o_col = vec4(mix(v_bg, dimInk, ink), 1.0); - return; - } - if (!oldLayer) discard; - o_col = vec4(cell, 1.0); - return; - } - // FreeType's hinted grayscale bitmap is already the intended coverage. // Preserve it exactly; weight-changing gamma hacks blur small stems. o_col = vec4(cell, 1.0); |