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feat: ghostty config

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Ted Kulp
2024-12-30 06:32:48 -05:00
parent aeac236a8c
commit d24409d0f0
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155
.config/ghostty/config Normal file
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#~~~~~~~~~~~~~~~~~~~~~~~#
# Ghostty configuration #
#~~~~~~~~~~~~~~~~~~~~~~~#
# vim: set filetype=dosini :
font-family = "Iosevka NFM"
font-size = 15
font-thicken = false
grapheme-width-method = unicode
freetype-load-flags = hinting,force-autohint,monochrome,autohint
theme = "catppuccin-mocha"
cursor-opacity = 1
#cursor-style = block
#cursor-style-blink =
#cursor-text =
cursor-click-to-move = true
mouse-hide-while-typing = false
mouse-shift-capture = false
mouse-scroll-multiplier = 1
background-opacity = .90
background-blur-radius = 40
unfocused-split-opacity = 0.2
unfocused-split-fill =
scrollback-limit = 10000000
link-url = true
fullscreen = false
title =
class =
keybind = super+page_up=scroll_page_up
keybind = super+ctrl+equal=equalize_splits
keybind = super+physical:four=goto_tab:4
keybind = super+shift+down=jump_to_prompt:1
keybind = super+shift+w=close_window
keybind = super+shift+left_bracket=previous_tab
keybind = super+alt+i=inspector:toggle
keybind = super+w=close_surface
keybind = super+physical:eight=goto_tab:8
keybind = super+alt+right=goto_split:right
keybind = shift+up=adjust_selection:up
keybind = super+down=jump_to_prompt:1
keybind = super+enter=toggle_fullscreen
keybind = super+t=new_tab
keybind = super+c=copy_to_clipboard
keybind = super+shift+right_bracket=next_tab
keybind = super+physical:one=goto_tab:1
keybind = shift+left=adjust_selection:left
keybind = super+equal=increase_font_size:1
keybind = shift+page_up=adjust_selection:page_up
keybind = super+physical:three=goto_tab:3
keybind = super+physical:zero=last_tab
keybind = super+right=text:\x05
keybind = super+d=new_split:right
keybind = super+ctrl+down=resize_split:down,10
keybind = shift+end=adjust_selection:end
keybind = super+plus=increase_font_size:1
keybind = super+q=quit
keybind = super+home=scroll_to_top
keybind = super+ctrl+left=resize_split:left,10
keybind = alt+left=esc:b
keybind = super+ctrl+up=resize_split:up,10
keybind = super+left=text:\x01
keybind = super+shift+up=jump_to_prompt:-1
keybind = shift+right=adjust_selection:right
keybind = super+comma=open_config
keybind = super+shift+comma=reload_config
keybind = super+minus=decrease_font_size:1
keybind = shift+page_down=adjust_selection:page_down
keybind = ctrl+tab=next_tab
keybind = super+a=select_all
keybind = alt+right=esc:f
keybind = super+shift+enter=toggle_split_zoom
keybind = super+alt+down=goto_split:bottom
keybind = super+ctrl+f=toggle_fullscreen
keybind = super+ctrl+right=resize_split:right,10
keybind = super+alt+shift+j=write_scrollback_file:open
keybind = shift+down=adjust_selection:down
keybind = ctrl+shift+tab=previous_tab
keybind = super+n=new_window
keybind = super+alt+left=goto_split:left
keybind = super+page_down=scroll_page_down
keybind = super+alt+shift+w=close_all_windows
keybind = super+alt+up=goto_split:top
keybind = super+left_bracket=goto_split:previous
keybind = super+physical:nine=goto_tab:9
keybind = super+right_bracket=goto_split:next
keybind = super+end=scroll_to_bottom
keybind = super+shift+j=write_scrollback_file:paste
keybind = super+shift+d=new_split:down
keybind = super+zero=reset_font_size
keybind = super+physical:five=goto_tab:5
keybind = shift+home=adjust_selection:home
keybind = super+physical:seven=goto_tab:7
keybind = super+up=jump_to_prompt:-1
keybind = super+k=clear_screen
keybind = super+physical:two=goto_tab:2
keybind = super+physical:six=goto_tab:6
keybind = super+v=paste_from_clipboard
window-padding-x = 2
window-padding-y = 2
window-padding-balance = false
window-padding-color = background
window-vsync = true
window-inherit-working-directory = true
window-inherit-font-size = true
window-decoration = true
window-title-font-family =
window-theme = auto
window-colorspace = srgb
window-height = 0
window-width = 0
window-save-state = default
window-step-resize = false
window-new-tab-position = current
resize-overlay = after-first
resize-overlay-position = center
resize-overlay-duration = 750ms
focus-follows-mouse = false
clipboard-read = allow
clipboard-write = allow
clipboard-trim-trailing-spaces = false
clipboard-paste-protection = true
clipboard-paste-bracketed-safe = true
image-storage-limit = 320000000
copy-on-select = false
click-repeat-interval = 0
config-file =
config-default-files = true
confirm-close-surface = true
quit-after-last-window-closed = false
quit-after-last-window-closed-delay =
initial-window = true
quick-terminal-position = top
quick-terminal-screen = main
quick-terminal-animation-duration = 0.2
quick-terminal-autohide = true
shell-integration = detect
shell-integration-features = cursor,no-sudo,title
osc-color-report-format = 16-bit
vt-kam-allowed = false
custom-shader =
custom-shader-animation = true
macos-non-native-fullscreen = false
macos-titlebar-style = hidden
macos-titlebar-proxy-icon = visible
macos-option-as-alt = true
macos-window-shadow = true
macos-auto-secure-input = true
macos-secure-input-indication = true
macos-icon = official
macos-icon-frame = aluminum
macos-icon-ghost-color =
macos-icon-screen-color =
desktop-notifications = true
bold-is-bright = true

33
.config/ghostty/shaders/bettercrt.glsl Normal file
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// Original shader collected from: https://www.shadertoy.com/view/WsVSzV
// Licensed under Shadertoy's default since the original creator didn't provide any license. (CC BY NC SA 3.0)
// Slight modifications were made to give a green-ish effect.
// This shader was modified by April Hall (arithefirst)
// Sourced from https://github.com/m-ahdal/ghostty-shaders/blob/main/retro-terminal.glsl
// Changes made:
// - Removed tint
// - Made the boundaries match ghostty's background color
float warp = 0.20; // simulate curvature of CRT monitor
float scan = 1.00; // simulate darkness between scanlines
void mainImage(out vec4 fragColor, in vec2 fragCoord)
{
// squared distance from center
vec2 uv = fragCoord / iResolution.xy;
vec2 dc = abs(0.5 - uv);
dc *= dc;
// warp the fragment coordinates
uv.x -= 0.5; uv.x *= 1.0 + (dc.y * (0.3 * warp)); uv.x += 0.5;
uv.y -= 0.5; uv.y *= 1.0 + (dc.x * (0.4 * warp)); uv.y += 0.5;
// determine if we are drawing in a scanline
float apply = abs(sin(fragCoord.y) * 0.25 * scan);
// sample the texture
vec3 color = texture(iChannel0, uv).rgb;
// mix the sampled color with the scanline intensity
fragColor = vec4(mix(color, vec3(0.0), apply), 1.0);
}

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.config/ghostty/shaders/bloom.glsl Normal file
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// source: https://gist.github.com/qwerasd205/c3da6c610c8ffe17d6d2d3cc7068f17f
// credits: https://github.com/qwerasd205
// Golden spiral samples, [x, y, weight] weight is inverse of distance.
const vec3[24] samples = {
vec3(0.1693761725038636, 0.9855514761735895, 1),
vec3(-1.333070830962943, 0.4721463328627773, 0.7071067811865475),
vec3(-0.8464394909806497, -1.51113870578065, 0.5773502691896258),
vec3(1.554155680728463, -1.2588090085709776, 0.5),
vec3(1.681364377589461, 1.4741145918052656, 0.4472135954999579),
vec3(-1.2795157692199817, 2.088741103228784, 0.4082482904638631),
vec3(-2.4575847530631187, -0.9799373355024756, 0.3779644730092272),
vec3(0.5874641440200847, -2.7667464429345077, 0.35355339059327373),
vec3(2.997715703369726, 0.11704939884745152, 0.3333333333333333),
vec3(0.41360842451688395, 3.1351121305574803, 0.31622776601683794),
vec3(-3.167149933769243, 0.9844599011770256, 0.30151134457776363),
vec3(-1.5736713846521535, -3.0860263079123245, 0.2886751345948129),
vec3(2.888202648340422, -2.1583061557896213, 0.2773500981126146),
vec3(2.7150778983300325, 2.5745586041105715, 0.2672612419124244),
vec3(-2.1504069972377464, 3.2211410627650165, 0.2581988897471611),
vec3(-3.6548858794907493, -1.6253643308191343, 0.25),
vec3(1.0130775986052671, -3.9967078676335834, 0.24253562503633297),
vec3(4.229723673607257, 0.33081361055181563, 0.23570226039551587),
vec3(0.40107790291173834, 4.340407413572593, 0.22941573387056174),
vec3(-4.319124570236028, 1.159811599693438, 0.22360679774997896),
vec3(-1.9209044802827355, -4.160543952132907, 0.2182178902359924),
vec3(3.8639122286635708, -2.6589814382925123, 0.21320071635561041),
vec3(3.3486228404946234, 3.4331800232609, 0.20851441405707477),
vec3(-2.8769733643574344, 3.9652268864187157, 0.20412414523193154)
};
float lum(vec4 c) {
return 0.299 * c.r + 0.587 * c.g + 0.114 * c.b;
}
void mainImage(out vec4 fragColor, in vec2 fragCoord) {
vec2 uv = fragCoord.xy / iResolution.xy;
vec4 color = texture(iChannel0, uv);
vec2 step = vec2(1.414) / iResolution.xy;
for (int i = 0; i < 24; i++) {
vec3 s = samples[i];
vec4 c = texture(iChannel0, uv + s.xy * step);
float l = lum(c);
if (l > 0.2) {
color += l * s.z * c * 0.2;
}
}
fragColor = color;
}

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.config/ghostty/shaders/crt.glsl Normal file
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// source: https://gist.github.com/qwerasd205/c3da6c610c8ffe17d6d2d3cc7068f17f
// credits: https://github.com/qwerasd205
//==============================================================
//
// [CRTS] PUBLIC DOMAIN CRT-STYLED SCALAR by Timothy Lottes
//
// [+] Adapted with alterations for use in Ghostty by Qwerasd.
// For more information on changes, see comment below license.
//
//==============================================================
//
// LICENSE = UNLICENSE (aka PUBLIC DOMAIN)
//
//--------------------------------------------------------------
// This is free and unencumbered software released into the
// public domain.
//--------------------------------------------------------------
// Anyone is free to copy, modify, publish, use, compile, sell,
// or distribute this software, either in source code form or as
// a compiled binary, for any purpose, commercial or
// non-commercial, and by any means.
//--------------------------------------------------------------
// In jurisdictions that recognize copyright laws, the author or
// authors of this software dedicate any and all copyright
// interest in the software to the public domain. We make this
// dedication for the benefit of the public at large and to the
// detriment of our heirs and successors. We intend this
// dedication to be an overt act of relinquishment in perpetuity
// of all present and future rights to this software under
// copyright law.
//--------------------------------------------------------------
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
// KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
// WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
// AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT
// OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//--------------------------------------------------------------
// For more information, please refer to
// <http://unlicense.org/>
//==============================================================
// This shader is a modified version of the excellent
// FixingPixelArtFast by Timothy Lottes on Shadertoy.
//
// The original shader can be found at:
// https://www.shadertoy.com/view/MtSfRK
//
// Modifications have been made to reduce the verbosity,
// and many of the comments have been removed / reworded.
// Additionally, the license has been moved to the top of
// the file, and can be read above. I (Qwerasd) choose to
// release the modified version under the same license.
// The appearance of this shader can be altered
// by adjusting the parameters defined below.
// "Scanlines" per real screen pixel.
// e.g. SCALE 0.5 means each scanline is 2 pixels.
// Recommended values:
// o High DPI displays: 0.33333333
// - Low DPI displays: 0.66666666
#define SCALE 0.66666666
// "Tube" warp
#define CRTS_WARP 1
// Darkness of vignette in corners after warping
// 0.0 = completely black
// 1.0 = no vignetting
#define MIN_VIN 0.25
// Try different masks
// #define CRTS_MASK_GRILLE 1
// #define CRTS_MASK_GRILLE_LITE 1
// #define CRTS_MASK_NONE 1
#define CRTS_MASK_SHADOW 1
// Scanline thinness
// 0.50 = fused scanlines
// 0.70 = recommended default
// 1.00 = thinner scanlines (too thin)
#define INPUT_THIN 0.70
// Horizonal scan blur
// -3.0 = pixely
// -2.5 = default
// -2.0 = smooth
// -1.0 = too blurry
#define INPUT_BLUR -2.75
// Shadow mask effect, ranges from,
// 0.25 = large amount of mask (not recommended, too dark)
// 0.50 = recommended default
// 1.00 = no shadow mask
#define INPUT_MASK 0.65
float FromSrgb1(float c) {
return (c <= 0.04045) ? c * (1.0 / 12.92) :
pow(c * (1.0 / 1.055) + (0.055 / 1.055), 2.4);
}
vec3 FromSrgb(vec3 c) {
return vec3(
FromSrgb1(c.r), FromSrgb1(c.g), FromSrgb1(c.b));
}
vec3 CrtsFetch(vec2 uv) {
return FromSrgb(texture(iChannel0, uv.xy).rgb);
}
#define CrtsRcpF1(x) (1.0/(x))
#define CrtsSatF1(x) clamp((x),0.0,1.0)
float CrtsMax3F1(float a, float b, float c) {
return max(a, max(b, c));
}
vec2 CrtsTone(
float thin,
float mask) {
#ifdef CRTS_MASK_NONE
mask = 1.0;
#endif
#ifdef CRTS_MASK_GRILLE_LITE
// Normal R mask is {1.0,mask,mask}
// LITE R mask is {mask,1.0,1.0}
mask = 0.5 + mask * 0.5;
#endif
vec2 ret;
float midOut = 0.18 / ((1.5 - thin) * (0.5 * mask + 0.5));
float pMidIn = 0.18;
ret.x = ((-pMidIn) + midOut) / ((1.0 - pMidIn) * midOut);
ret.y = ((-pMidIn) * midOut + pMidIn) / (midOut * (-pMidIn) + midOut);
return ret;
}
vec3 CrtsMask(vec2 pos, float dark) {
#ifdef CRTS_MASK_GRILLE
vec3 m = vec3(dark, dark, dark);
float x = fract(pos.x * (1.0 / 3.0));
if (x < (1.0 / 3.0)) m.r = 1.0;
else if (x < (2.0 / 3.0)) m.g = 1.0;
else m.b = 1.0;
return m;
#endif
#ifdef CRTS_MASK_GRILLE_LITE
vec3 m = vec3(1.0, 1.0, 1.0);
float x = fract(pos.x * (1.0 / 3.0));
if (x < (1.0 / 3.0)) m.r = dark;
else if (x < (2.0 / 3.0)) m.g = dark;
else m.b = dark;
return m;
#endif
#ifdef CRTS_MASK_NONE
return vec3(1.0, 1.0, 1.0);
#endif
#ifdef CRTS_MASK_SHADOW
pos.x += pos.y * 3.0;
vec3 m = vec3(dark, dark, dark);
float x = fract(pos.x * (1.0 / 6.0));
if (x < (1.0 / 3.0)) m.r = 1.0;
else if (x < (2.0 / 3.0)) m.g = 1.0;
else m.b = 1.0;
return m;
#endif
}
vec3 CrtsFilter(
vec2 ipos,
vec2 inputSizeDivOutputSize,
vec2 halfInputSize,
vec2 rcpInputSize,
vec2 rcpOutputSize,
vec2 twoDivOutputSize,
float inputHeight,
vec2 warp,
float thin,
float blur,
float mask,
vec2 tone
) {
// Optional apply warp
vec2 pos;
#ifdef CRTS_WARP
// Convert to {-1 to 1} range
pos = ipos * twoDivOutputSize - vec2(1.0, 1.0);
// Distort pushes image outside {-1 to 1} range
pos *= vec2(
1.0 + (pos.y * pos.y) * warp.x,
1.0 + (pos.x * pos.x) * warp.y);
// TODO: Vignette needs optimization
float vin = 1.0 - (
(1.0 - CrtsSatF1(pos.x * pos.x)) * (1.0 - CrtsSatF1(pos.y * pos.y)));
vin = CrtsSatF1((-vin) * inputHeight + inputHeight);
// Leave in {0 to inputSize}
pos = pos * halfInputSize + halfInputSize;
#else
pos = ipos * inputSizeDivOutputSize;
#endif
// Snap to center of first scanline
float y0 = floor(pos.y - 0.5) + 0.5;
// Snap to center of one of four pixels
float x0 = floor(pos.x - 1.5) + 0.5;
// Inital UV position
vec2 p = vec2(x0 * rcpInputSize.x, y0 * rcpInputSize.y);
// Fetch 4 nearest texels from 2 nearest scanlines
vec3 colA0 = CrtsFetch(p);
p.x += rcpInputSize.x;
vec3 colA1 = CrtsFetch(p);
p.x += rcpInputSize.x;
vec3 colA2 = CrtsFetch(p);
p.x += rcpInputSize.x;
vec3 colA3 = CrtsFetch(p);
p.y += rcpInputSize.y;
vec3 colB3 = CrtsFetch(p);
p.x -= rcpInputSize.x;
vec3 colB2 = CrtsFetch(p);
p.x -= rcpInputSize.x;
vec3 colB1 = CrtsFetch(p);
p.x -= rcpInputSize.x;
vec3 colB0 = CrtsFetch(p);
// Vertical filter
// Scanline intensity is using sine wave
// Easy filter window and integral used later in exposure
float off = pos.y - y0;
float pi2 = 6.28318530717958;
float hlf = 0.5;
float scanA = cos(min(0.5, off * thin) * pi2) * hlf + hlf;
float scanB = cos(min(0.5, (-off) * thin + thin) * pi2) * hlf + hlf;
// Horizontal kernel is simple gaussian filter
float off0 = pos.x - x0;
float off1 = off0 - 1.0;
float off2 = off0 - 2.0;
float off3 = off0 - 3.0;
float pix0 = exp2(blur * off0 * off0);
float pix1 = exp2(blur * off1 * off1);
float pix2 = exp2(blur * off2 * off2);
float pix3 = exp2(blur * off3 * off3);
float pixT = CrtsRcpF1(pix0 + pix1 + pix2 + pix3);
#ifdef CRTS_WARP
// Get rid of wrong pixels on edge
pixT *= max(MIN_VIN, vin);
#endif
scanA *= pixT;
scanB *= pixT;
// Apply horizontal and vertical filters
vec3 color =
(colA0 * pix0 + colA1 * pix1 + colA2 * pix2 + colA3 * pix3) * scanA +
(colB0 * pix0 + colB1 * pix1 + colB2 * pix2 + colB3 * pix3) * scanB;
// Apply phosphor mask
color *= CrtsMask(ipos, mask);
// Tonal control, start by protecting from /0
float peak = max(1.0 / (256.0 * 65536.0),
CrtsMax3F1(color.r, color.g, color.b));
// Compute the ratios of {R,G,B}
vec3 ratio = color * CrtsRcpF1(peak);
// Apply tonal curve to peak value
peak = peak * CrtsRcpF1(peak * tone.x + tone.y);
// Reconstruct color
return ratio * peak;
}
float ToSrgb1(float c) {
return (c < 0.0031308 ? c * 12.92 : 1.055 * pow(c, 0.41666) - 0.055);
}
vec3 ToSrgb(vec3 c) {
return vec3(
ToSrgb1(c.r), ToSrgb1(c.g), ToSrgb1(c.b));
}
void mainImage(out vec4 fragColor, in vec2 fragCoord) {
float aspect = iResolution.x / iResolution.y;
fragColor.rgb = CrtsFilter(
fragCoord.xy,
vec2(1.0),
iResolution.xy * SCALE * 0.5,
1.0 / (iResolution.xy * SCALE),
1.0 / iResolution.xy,
2.0 / iResolution.xy,
iResolution.y,
vec2(1.0 / (50.0 * aspect), 1.0 / 50.0),
INPUT_THIN,
INPUT_BLUR,
INPUT_MASK,
CrtsTone(INPUT_THIN, INPUT_MASK)
);
// Linear to SRGB for output.
fragColor.rgb = ToSrgb(fragColor.rgb);
}

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.config/ghostty/shaders/glitchy.glsl Normal file
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// modified version of https://www.shadertoy.com/view/wld3WN
// amount of seconds for which the glitch loop occurs
#define DURATION 10.
// percentage of the duration for which the glitch is triggered
#define AMT .01
#define SS(a, b, x) (smoothstep(a, b, x) * smoothstep(b, a, x))
#define UI0 1597334673U
#define UI1 3812015801U
#define UI2 uvec2(UI0, UI1)
#define UI3 uvec3(UI0, UI1, 2798796415U)
#define UIF (1. / float(0xffffffffU))
// Hash by David_Hoskins
vec3 hash33(vec3 p)
{
uvec3 q = uvec3(ivec3(p)) * UI3;
q = (q.x ^ q.y ^ q.z)*UI3;
return -1. + 2. * vec3(q) * UIF;
}
// Gradient noise by iq
float gnoise(vec3 x)
{
// grid
vec3 p = floor(x);
vec3 w = fract(x);
// quintic interpolant
vec3 u = w * w * w * (w * (w * 6. - 15.) + 10.);
// gradients
vec3 ga = hash33(p + vec3(0., 0., 0.));
vec3 gb = hash33(p + vec3(1., 0., 0.));
vec3 gc = hash33(p + vec3(0., 1., 0.));
vec3 gd = hash33(p + vec3(1., 1., 0.));
vec3 ge = hash33(p + vec3(0., 0., 1.));
vec3 gf = hash33(p + vec3(1., 0., 1.));
vec3 gg = hash33(p + vec3(0., 1., 1.));
vec3 gh = hash33(p + vec3(1., 1., 1.));
// projections
float va = dot(ga, w - vec3(0., 0., 0.));
float vb = dot(gb, w - vec3(1., 0., 0.));
float vc = dot(gc, w - vec3(0., 1., 0.));
float vd = dot(gd, w - vec3(1., 1., 0.));
float ve = dot(ge, w - vec3(0., 0., 1.));
float vf = dot(gf, w - vec3(1., 0., 1.));
float vg = dot(gg, w - vec3(0., 1., 1.));
float vh = dot(gh, w - vec3(1., 1., 1.));
// interpolation
float gNoise = va + u.x * (vb - va) +
u.y * (vc - va) +
u.z * (ve - va) +
u.x * u.y * (va - vb - vc + vd) +
u.y * u.z * (va - vc - ve + vg) +
u.z * u.x * (va - vb - ve + vf) +
u.x * u.y * u.z * (-va + vb + vc - vd + ve - vf - vg + vh);
return 2. * gNoise;
}
// gradient noise in range [0, 1]
float gnoise01(vec3 x)
{
return .5 + .5 * gnoise(x);
}
// warp uvs for the crt effect
vec2 crt(vec2 uv)
{
float tht = atan(uv.y, uv.x);
float r = length(uv);
// curve without distorting the center
r /= (1. - .1 * r * r);
uv.x = r * cos(tht);
uv.y = r * sin(tht);
return .5 * (uv + 1.);
}
void mainImage( out vec4 fragColor, in vec2 fragCoord )
{
vec2 uv = fragCoord / iResolution.xy;
float t = iTime;
// smoothed interval for which the glitch gets triggered
float glitchAmount = SS(DURATION * .001, DURATION * AMT, mod(t, DURATION));
float displayNoise = 0.;
vec3 col = vec3(0.);
vec2 eps = vec2(5. / iResolution.x, 0.);
vec2 st = vec2(0.);
// analog distortion
float y = uv.y * iResolution.y;
float distortion = gnoise(vec3(0., y * .01, t * 500.)) * (glitchAmount * 4. + .1);
distortion *= gnoise(vec3(0., y * .02, t * 250.)) * (glitchAmount * 2. + .025);
++displayNoise;
distortion += smoothstep(.999, 1., sin((uv.y + t * 1.6) * 2.)) * .02;
distortion -= smoothstep(.999, 1., sin((uv.y + t) * 2.)) * .02;
st = uv + vec2(distortion, 0.);
// chromatic aberration
col.r += textureLod(iChannel0, st + eps + distortion, 0.).r;
col.g += textureLod(iChannel0, st, 0.).g;
col.b += textureLod(iChannel0, st - eps - distortion, 0.).b;
// white noise + scanlines
displayNoise = 0.2 * clamp(displayNoise, 0., 1.);
col += (.15 + .65 * glitchAmount) * (hash33(vec3(fragCoord, mod(float(iFrame),
1000.))).r) * displayNoise;
col -= (.25 + .75 * glitchAmount) * (sin(4. * t + uv.y * iResolution.y * 1.75))
* displayNoise;
fragColor = vec4(col, 1.0);
}

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.config/ghostty/shaders/gradient-background.glsl Normal file
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// credits: https://github.com/unkn0wncode
void mainImage(out vec4 fragColor, in vec2 fragCoord)
{
// Normalize pixel coordinates (range from 0 to 1)
vec2 uv = fragCoord.xy / iResolution.xy;
// Create a gradient from bottom right to top left as a function (x + y)/2
float gradientFactor = (uv.x + uv.y) / 2.0;
// Define gradient colors (adjust to your preference)
vec3 gradientStartColor = vec3(0.1, 0.1, 0.5); // Start color (e.g., dark blue)
vec3 gradientEndColor = vec3(0.5, 0.1, 0.1); // End color (e.g., dark red)
vec3 gradientColor = mix(gradientStartColor, gradientEndColor, gradientFactor);
// Sample the terminal screen texture including alpha channel
vec4 terminalColor = texture(iChannel0, uv);
// Make a mask that is 1.0 where the terminal content is not black
float mask = 1 - step(0.5, dot(terminalColor.rgb, vec3(1.0)));
vec3 blendedColor = mix(terminalColor.rgb, gradientColor, mask);
// Apply terminal's alpha to control overall opacity
fragColor = vec4(blendedColor, terminalColor.a);
}

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.config/ghostty/shaders/just-snow.glsl Normal file
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// Copyright (c) 2013 Andrew Baldwin (twitter: baldand, www: http://thndl.com)
// License = Attribution-NonCommercial-ShareAlike (http://creativecommons.org/licenses/by-nc-sa/3.0/deed.en_US)
// "Just snow"
// Simple (but not cheap) snow made from multiple parallax layers with randomly positioned
// flakes and directions. Also includes a DoF effect. Pan around with mouse.
#define LIGHT_SNOW // Comment this out for a blizzard
#ifdef LIGHT_SNOW
#define LAYERS 50
#define DEPTH .5
#define WIDTH .3
#define SPEED .6
#else // BLIZZARD
#define LAYERS 200
#define DEPTH .1
#define WIDTH .8
#define SPEED 1.5
#endif
void mainImage( out vec4 fragColor, in vec2 fragCoord )
{
const mat3 p = mat3(13.323122,23.5112,21.71123,21.1212,28.7312,11.9312,21.8112,14.7212,61.3934);
vec2 uv = fragCoord.xy / iResolution.xy;
vec3 acc = vec3(0.0);
float dof = 5.0 * sin(iTime * 0.1);
for (int i = 0; i < LAYERS; i++) {
float fi = float(i);
vec2 q =-uv*(1.0 + fi * DEPTH);
q += vec2(q.y * (WIDTH * mod(fi * 7.238917, 1.0) - WIDTH * 0.5), SPEED * iTime / (1.0 + fi * DEPTH * 0.03));
vec3 n = vec3(floor(q), 31.189 + fi);
vec3 m = floor(n) * 0.00001 + fract(n);
vec3 mp = (31415.9 + m) / fract(p * m);
vec3 r = fract(mp);
vec2 s = abs(mod(q, 1.0) - 0.5 + 0.9 * r.xy - 0.45);
s += 0.01 * abs(2.0 * fract(10.0 * q.yx) - 1.0);
float d = 0.6 * max(s.x - s.y, s.x + s.y) + max(s.x, s.y) - 0.01;
float edge = 0.005 + 0.05 * min(0.5 * abs(fi - 5.0 - dof), 1.0);
acc += vec3(smoothstep(edge, -edge, d) * (r.x / (1.0 + 0.02 * fi * DEPTH)));
}
// Sample the terminal screen texture including alpha channel
vec4 terminalColor = texture(iChannel0, uv);
// Combine the snow effect with the terminal color
vec3 blendedColor = terminalColor.rgb + acc;
// Use the terminal's original alpha
fragColor = vec4(blendedColor, terminalColor.a);
}

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.config/ghostty/shaders/retro-terminal.glsl Normal file
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// Original shader collected from: https://www.shadertoy.com/view/WsVSzV
// Licensed under Shadertoy's default since the original creator didn't provide any license. (CC BY NC SA 3.0)
// Slight modifications were made to give a green-ish effect.
float warp = 0.25; // simulate curvature of CRT monitor
float scan = 0.50; // simulate darkness between scanlines
void mainImage(out vec4 fragColor, in vec2 fragCoord)
{
// squared distance from center
vec2 uv = fragCoord / iResolution.xy;
vec2 dc = abs(0.5 - uv);
dc *= dc;
// warp the fragment coordinates
uv.x -= 0.5; uv.x *= 1.0 + (dc.y * (0.3 * warp)); uv.x += 0.5;
uv.y -= 0.5; uv.y *= 1.0 + (dc.x * (0.4 * warp)); uv.y += 0.5;
// sample inside boundaries, otherwise set to black
if (uv.y > 1.0 || uv.x < 0.0 || uv.x > 1.0 || uv.y < 0.0)
fragColor = vec4(0.0, 0.0, 0.0, 1.0);
else
{
// determine if we are drawing in a scanline
float apply = abs(sin(fragCoord.y) * 0.5 * scan);
// sample the texture and apply a teal tint
vec3 color = texture(iChannel0, uv).rgb;
vec3 tealTint = vec3(0.0, 0.8, 0.6); // teal color (slightly more green than blue)
// mix the sampled color with the teal tint based on scanline intensity
fragColor = vec4(mix(color * tealTint, vec3(0.0), apply), 1.0);
}
}

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.config/ghostty/shaders/starfield-colors.glsl Normal file
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// divisions of grid
const float repeats = 30.;
// number of layers
const float layers = 21.;
// star colours
const vec3 blue = vec3(51.,64.,195.)/255.;
const vec3 cyan = vec3(117.,250.,254.)/255.;
const vec3 white = vec3(255.,255.,255.)/255.;
const vec3 yellow = vec3(251.,245.,44.)/255.;
const vec3 red = vec3(247,2.,20.)/255.;
// spectrum function
vec3 spectrum(vec2 pos){
pos.x *= 4.;
vec3 outCol = vec3(0);
if( pos.x > 0.){
outCol = mix(blue, cyan, fract(pos.x));
}
if( pos.x > 1.){
outCol = mix(cyan, white, fract(pos.x));
}
if( pos.x > 2.){
outCol = mix(white, yellow, fract(pos.x));
}
if( pos.x > 3.){
outCol = mix(yellow, red, fract(pos.x));
}
return 1.-(pos.y * (1.-outCol));
}
float N21(vec2 p) {
p = fract(p * vec2(233.34, 851.73));
p += dot(p, p + 23.45);
return fract(p.x * p.y);
}
vec2 N22(vec2 p) {
float n = N21(p);
return vec2(n, N21(p + n));
}
mat2 scale(vec2 _scale) {
return mat2(_scale.x, 0.0,
0.0, _scale.y);
}
// 2D Noise based on Morgan McGuire
float noise(in vec2 st) {
vec2 i = floor(st);
vec2 f = fract(st);
// Four corners in 2D of a tile
float a = N21(i);
float b = N21(i + vec2(1.0, 0.0));
float c = N21(i + vec2(0.0, 1.0));
float d = N21(i + vec2(1.0, 1.0));
// Smooth Interpolation
vec2 u = f * f * (3.0 - 2.0 * f); // Cubic Hermite Curve
// Mix 4 corners percentages
return mix(a, b, u.x) +
(c - a) * u.y * (1.0 - u.x) +
(d - b) * u.x * u.y;
}
float perlin2(vec2 uv, int octaves, float pscale) {
float col = 1.;
float initScale = 4.;
for (int l; l < octaves; l++) {
float val = noise(uv * initScale);
if (col <= 0.01) {
col = 0.;
break;
}
val -= 0.01;
val *= 0.5;
col *= val;
initScale *= pscale;
}
return col;
}
vec3 stars(vec2 uv, float offset) {
float timeScale = -(iTime + offset) / layers;
float trans = fract(timeScale);
float newRnd = floor(timeScale);
vec3 col = vec3(0.);
// Translate uv then scale for center
uv -= vec2(0.5);
uv = scale(vec2(trans)) * uv;
uv += vec2(0.5);
// Create square aspect ratio
uv.x *= iResolution.x / iResolution.y;
// Create boxes
uv *= repeats;
// Get position
vec2 ipos = floor(uv);
// Return uv as 0 to 1
uv = fract(uv);
// Calculate random xy and size
vec2 rndXY = N22(newRnd + ipos * (offset + 1.)) * 0.9 + 0.05;
float rndSize = N21(ipos) * 100. + 200.;
vec2 j = (rndXY - uv) * rndSize;
float sparkle = 1. / dot(j, j);
// Set stars to be pure white
col += spectrum(fract(rndXY*newRnd*ipos)) * vec3(sparkle);
col *= smoothstep(1., 0.8, trans);
return col; // Return pure white stars only
}
void mainImage( out vec4 fragColor, in vec2 fragCoord )
{
// Normalized pixel coordinates (from 0 to 1)
vec2 uv = fragCoord/iResolution.xy;
vec3 col = vec3(0.);
for (float i = 0.; i < layers; i++ ){
col += stars(uv, i);
}
// Sample the terminal screen texture including alpha channel
vec4 terminalColor = texture(iChannel0, uv);
// Make a mask that is 1.0 where the terminal content is not black
float mask = 1 - step(0.5, dot(terminalColor.rgb, vec3(1.0)));
vec3 blendedColor = mix(terminalColor.rgb, col, mask);
// Apply terminal's alpha to control overall opacity
fragColor = vec4(blendedColor, terminalColor.a);
}

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.config/ghostty/shaders/starfield.glsl Normal file
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// divisions of grid
const float repeats = 30.;
// number of layers
const float layers = 21.;
// star colors
const vec3 white = vec3(1.0); // Set star color to pure white
float N21(vec2 p) {
p = fract(p * vec2(233.34, 851.73));
p += dot(p, p + 23.45);
return fract(p.x * p.y);
}
vec2 N22(vec2 p) {
float n = N21(p);
return vec2(n, N21(p + n));
}
mat2 scale(vec2 _scale) {
return mat2(_scale.x, 0.0,
0.0, _scale.y);
}
// 2D Noise based on Morgan McGuire
float noise(in vec2 st) {
vec2 i = floor(st);
vec2 f = fract(st);
// Four corners in 2D of a tile
float a = N21(i);
float b = N21(i + vec2(1.0, 0.0));
float c = N21(i + vec2(0.0, 1.0));
float d = N21(i + vec2(1.0, 1.0));
// Smooth Interpolation
vec2 u = f * f * (3.0 - 2.0 * f); // Cubic Hermite Curve
// Mix 4 corners percentages
return mix(a, b, u.x) +
(c - a) * u.y * (1.0 - u.x) +
(d - b) * u.x * u.y;
}
float perlin2(vec2 uv, int octaves, float pscale) {
float col = 1.;
float initScale = 4.;
for (int l; l < octaves; l++) {
float val = noise(uv * initScale);
if (col <= 0.01) {
col = 0.;
break;
}
val -= 0.01;
val *= 0.5;
col *= val;
initScale *= pscale;
}
return col;
}
vec3 stars(vec2 uv, float offset) {
float timeScale = -(iTime + offset) / layers;
float trans = fract(timeScale);
float newRnd = floor(timeScale);
vec3 col = vec3(0.);
// Translate uv then scale for center
uv -= vec2(0.5);
uv = scale(vec2(trans)) * uv;
uv += vec2(0.5);
// Create square aspect ratio
uv.x *= iResolution.x / iResolution.y;
// Create boxes
uv *= repeats;
// Get position
vec2 ipos = floor(uv);
// Return uv as 0 to 1
uv = fract(uv);
// Calculate random xy and size
vec2 rndXY = N22(newRnd + ipos * (offset + 1.)) * 0.9 + 0.05;
float rndSize = N21(ipos) * 100. + 200.;
vec2 j = (rndXY - uv) * rndSize;
float sparkle = 1. / dot(j, j);
// Set stars to be pure white
col += white * sparkle;
col *= smoothstep(1., 0.8, trans);
return col; // Return pure white stars only
}
void mainImage( out vec4 fragColor, in vec2 fragCoord )
{
// Normalized pixel coordinates (from 0 to 1)
vec2 uv = fragCoord/iResolution.xy;
vec3 col = vec3(0.);
for (float i = 0.; i < layers; i++ ){
col += stars(uv, i);
}
// Output to screen
// fragColor = vec4(col,1.0);
// Sample the terminal screen texture including alpha channel
vec4 terminalColor = texture(iChannel0, uv);
// Make a mask that is 1.0 where the terminal content is not black
float mask = 1 - step(0.5, dot(terminalColor.rgb, vec3(1.0)));
vec3 blendedColor = mix(terminalColor.rgb, col, mask);
// Apply terminal's alpha to control overall opacity
fragColor = vec4(blendedColor, terminalColor.a);
}

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.config/ghostty/shaders/tft.glsl Normal file
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/** Size of TFT "pixels" */
float resolution = 4.0;
/** Strength of effect */
float strength = 0.5;
void _scanline(inout vec3 color, vec2 uv)
{
float scanline = step(1.2, mod(uv.y * iResolution.y, resolution));
float grille = step(1.2, mod(uv.x * iResolution.x, resolution));
color *= max(1.0 - strength, scanline * grille);
}
void mainImage(out vec4 fragColor, in vec2 fragCoord)
{
vec2 uv = fragCoord.xy / iResolution.xy;
vec3 color = texture(iChannel0, uv).rgb;
_scanline(color, uv);
fragColor.xyz = color;
fragColor.w = 1.0;
}