diff options
Diffstat (limited to 'shaders')
22 files changed, 409 insertions, 434 deletions
diff --git a/shaders/crt.ci.metal b/shaders/crt.ci.metal index c7e91a7e..9159af18 100644 --- a/shaders/crt.ci.metal +++ b/shaders/crt.ci.metal @@ -1,7 +1,6 @@ // Native macOS panel and scene postprocess. Panel kernels consume the core's -// plain tracks; the final full-window kernel ports crt.frag.glsl and combines -// CRT, ripple and glitch. Scene constants and sampling geometry stay in step -// with GLSL, while panel easing/noise stays in step with panel_animation.zig. +// plain tracks; the final full-window kernel is the CRT. Panel easing/noise +// stays in step with panel_animation.zig. // // The three entry points are `extern "C" [[stitchable]]`. Both halves are // load-bearing: this source is compiled at runtime by @@ -38,24 +37,6 @@ float pardesCellNoise(float2 serialParts, float colValue, float rowValue) { return float(x & 0xffffu) / 65535.0; } -float2 pardesSceneUV(float2 uv, float timeSeconds, float rippleOn, float glitchOn) { - if (rippleOn > 0.5) { - float2 centered = uv - 0.5; - float radius = length(centered); - // Reversed smoothstep edges are undefined in GLSL and Metal alike. - float envelope = 1.0 - smoothstep(0.04, 0.72, radius); - float wave = sin(radius * 42.0 - timeSeconds * 5.2); - uv += centered / max(radius, 0.00001) * wave * envelope * 0.0032; - } - if (glitchOn > 0.5) { - float band = floor(uv.y * 96.0); - float seed = pardesNoise(float2(band, floor(timeSeconds * 13.0))); - float tear = smoothstep(0.955, 1.0, seed); - uv.x += (pardesNoise(float2(seed, band)) - 0.5) * tear * 0.020; - } - return uv; -} - float4 pardesSceneSample( coreimage::sampler source, float2 origin, @@ -66,42 +47,13 @@ float4 pardesSceneSample( source.sample(source.transform(origin + uv * size))); } -// Keep this ordering identical to crt.frag.glsl's sceneSrgb: every caller -// supplies its own pre-warp coordinate, then ripple/glitch move that sample, -// then glitch splits its red/blue channels around the moved center. -float4 pardesSceneSrgb( - coreimage::sampler source, - float2 origin, - float2 size, - float2 uv, - float timeSeconds, - float rippleOn, - float glitchOn -) { - float2 warped = pardesSceneUV(uv, timeSeconds, rippleOn, glitchOn); - float4 center = pardesSceneSample(source, origin, size, warped); - if (glitchOn <= 0.5) return center; - - float band = floor(warped.y * 96.0); - float seed = pardesNoise(float2(band, floor(timeSeconds * 13.0))); - float tear = smoothstep(0.955, 1.0, seed); - float2 chroma = float2((0.35 + 1.25 * tear) / size.x, 0.0); - float4 red = pardesSceneSample(source, origin, size, warped + chroma); - float4 blue = pardesSceneSample(source, origin, size, warped - chroma); - return float4(red.r, center.g, blue.b, center.a); -} - float3 pardesSceneLinear( coreimage::sampler source, float2 origin, float2 size, - float2 uv, - float timeSeconds, - float rippleOn, - float glitchOn + float2 uv ) { - return coreimage::srgb_to_linear(pardesSceneSrgb( - source, origin, size, uv, timeSeconds, rippleOn, glitchOn).rgb); + return coreimage::srgb_to_linear(pardesSceneSample(source, origin, size, uv).rgb); } bool pardesInside(float2 p, float4 box) { @@ -242,8 +194,6 @@ extern "C" [[stitchable]] float4 pardesScene( float timeSeconds, float frame, float crtOn, - float rippleOn, - float glitchOn, float2 sceneSize, float2 sceneOrigin, coreimage::destination destination @@ -277,24 +227,18 @@ extern "C" [[stitchable]] float4 pardesScene( // transparent theme. if (crtOn > 0.5 && edge <= 0.0) return float4(0.0, 0.0, 0.0, 1.0); - float4 center = pardesSceneSrgb( - source, origin, size, uv, timeSeconds, rippleOn, glitchOn); + float4 center = pardesSceneSample(source, origin, size, uv); float3 scene = center.rgb; - // Ripple/glitch alone are coordinate effects. Returning the sampled sRGB - // values directly keeps exact theme colors exact. + // Without the CRT the scene passes through, exact. if (crtOn <= 0.5) { return coreimage::premultiply(float4(clamp(scene, 0.0, 1.0), center.a)); } float3 centerLinear = coreimage::srgb_to_linear(scene); float2 radialChroma = cc * (chromaPx * r2) * texel; - float3 redSample = pardesSceneLinear( - source, origin, size, uv + radialChroma, - timeSeconds, rippleOn, glitchOn); - float3 blueSample = pardesSceneLinear( - source, origin, size, uv - radialChroma, - timeSeconds, rippleOn, glitchOn); + float3 redSample = pardesSceneLinear(source, origin, size, uv + radialChroma); + float3 blueSample = pardesSceneLinear(source, origin, size, uv - radialChroma); float3 col = float3( redSample.r, centerLinear.g, @@ -308,8 +252,7 @@ extern "C" [[stitchable]] float4 pardesScene( float2(0.0, bloom.y), float2(0.0, -bloom.y) }; for (uint i = 0; i < 4; i++) { - // Deliberately raw, like GLSL brightPass: bloom belongs to the source - // image and does not recursively warp through the scene effects. + // Deliberately raw, like GLSL brightPass. float4 sampleValue = pardesSceneSample( source, origin, size, uv + bloomOffsets[i]); float3 linearValue = coreimage::srgb_to_linear(sampleValue.rgb); diff --git a/shaders/crt.frag.glsl b/shaders/crt.frag.glsl deleted file mode 100644 index b0b0b93b..00000000 --- a/shaders/crt.frag.glsl +++ /dev/null @@ -1,175 +0,0 @@ -#version 450 - -// The Crt builtin's post-process. Screen point cc shows the scene at -// uv' = cc*(1 + BARREL*r2), and src/gui/crt.zig maps mouse input through that -// same transform — keep them equal or clicks drift near the edges. - -layout(set = 2, binding = 0) uniform sampler2D u_scene; -layout(std140, set = 3, binding = 0) uniform CrtUniforms { - float time_seconds; - float frame; - vec2 viewport; - // x = CRT, y = ripple, z = glitch. One scene pass can combine them. - vec4 effects; -} u_crt; - -layout(location = 0) out vec4 o_col; - -const float TAU = 6.28318530718; -const float BARREL = 0.016; // MUST match src/gui/crt.zig barrel -const float EDGE_SOFTNESS_PX = 3.5; -const float CHROMA_PX = 0.28; // radial R/B separation in physical pixels at r2=1 -const float BLOOM_RADIUS_PX = 1.75; -const float BLOOM_THRESHOLD = 0.60; // linear-light channel peak -const float BLOOM_SOFTNESS = 0.25; -const float BLOOM_STRENGTH = 0.045; -const float SCAN_PERIOD_PX = 3.0; -const float SCAN_STRENGTH = 0.055; -const float MASK_PERIOD_PX = 3.0; -const float MASK_STRENGTH = 0.015; -const float VIGNETTE_STRENGTH = 0.11; // 11% only at the extreme corners -const float HUM_STRENGTH = 0.0025; -const float NOISE_STRENGTH = 0.0020; -const float EXPOSURE = 1.012; - -vec3 srgbToLinear(vec3 c) { - vec3 low = c / 12.92; - vec3 high = pow((c + 0.055) / 1.055, vec3(2.4)); - return mix(high, low, lessThanEqual(c, vec3(0.04045))); -} - -vec3 linearToSrgb(vec3 c) { - c = max(c, vec3(0.0)); - vec3 low = c * 12.92; - vec3 high = 1.055 * pow(c, vec3(1.0 / 2.4)) - 0.055; - return mix(high, low, lessThanEqual(c, vec3(0.0031308))); -} - -vec3 sceneLinear(vec2 uv) { - return srgbToLinear(texture(u_scene, uv).rgb); -} - -vec3 brightPass(vec2 uv) { - vec3 c = sceneLinear(uv); - float peak = max(c.r, max(c.g, c.b)); - return c * smoothstep(BLOOM_THRESHOLD, BLOOM_THRESHOLD + BLOOM_SOFTNESS, peak); -} - -float noiseAt(vec2 p) { - vec3 q = fract(vec3(p.xyx) * 0.1031); - q += dot(q, q.yzx + 33.33); - return fract((q.x + q.y) * q.z); -} - -// The non-CRT scene effects deliberately distort the source coordinates, -// rather than remapping the final colors. Themes retain their palette and the -// effects remain composable with the linear-light CRT treatment below. -vec2 sceneUv(vec2 uv) { - if (u_crt.effects.y > 0.5) { - vec2 centered = uv - 0.5; - float radius = length(centered); - float envelope = 1.0 - smoothstep(0.04, 0.72, radius); - float wave = sin(radius * 42.0 - u_crt.time_seconds * 5.2); - uv += centered / max(radius, 0.00001) * wave * envelope * 0.0032; - } - if (u_crt.effects.z > 0.5) { - float band = floor(uv.y * 96.0); - float seed = noiseAt(vec2(band, floor(u_crt.time_seconds * 13.0))); - float tear = smoothstep(0.955, 1.0, seed); - uv.x += (noiseAt(vec2(seed, band)) - 0.5) * tear * 0.020; - } - return uv; -} - -// The scene, ALPHA INCLUDED: with a see-through ground the grid arrives -// premultiplied and partly empty, and a pass that dropped .a would turn the -// desktop behind a `*_transparent` theme into opaque black the moment Crt, -// Ripple or Glitch came on. -vec4 sceneSrgb(vec2 uv) { - vec2 warped = sceneUv(uv); - vec4 center = texture(u_scene, warped); - if (u_crt.effects.z <= 0.5) return center; - - float band = floor(warped.y * 96.0); - float seed = noiseAt(vec2(band, floor(u_crt.time_seconds * 13.0))); - float tear = smoothstep(0.955, 1.0, seed); - vec2 chroma = vec2((0.35 + 1.25 * tear) / u_crt.viewport.x, 0.0); - return vec4( - texture(u_scene, warped + chroma).r, - center.g, - texture(u_scene, warped - chroma).b, - center.a - ); -} - -vec3 effectSceneLinear(vec2 uv) { - return srgbToLinear(sceneSrgb(uv).rgb); -} - -void main() { - vec2 size = u_crt.viewport; - vec2 texel = 1.0 / size; - vec2 cc = gl_FragCoord.xy / size * 2.0 - 1.0; - float r2 = dot(cc, cc); - vec2 uv = cc * (1.0 + BARREL * r2 * u_crt.effects.x) * 0.5 + 0.5; - - // Ripple and glitch are useful without the CRT. They only move samples; - // skip every tube-specific light/mask/exposure adjustment. - if (u_crt.effects.x <= 0.5) { - // The scene texture is already sRGB. Avoid a needless transfer-curve - // round trip so a coordinate-only effect preserves theme bytes. - vec4 s = sceneSrgb(uv); - o_col = vec4(clamp(s.rgb, 0.0, 1.0), clamp(s.a, 0.0, 1.0)); - return; - } - - vec3 col = vec3(0.0); - // Outside the tube nothing is drawn, so nothing is covered either: the - // old opaque black there would have punched a rectangle out of the - // compositor's backdrop. - float alpha = 0.0; - float edge = min(min(uv.x, uv.y), min(1.0 - uv.x, 1.0 - uv.y)); - if (edge > 0.0) { - vec3 center = effectSceneLinear(uv); - vec2 chroma = cc * (CHROMA_PX * r2) * texel; - // Each radial sample follows the same ripple/glitch path from its own - // pre-warp coordinate. This is also how the Metal kernel composes the - // effects; sampling a once-warped center here made combined effects - // diverge between the two GUI backends. - col = vec3( - effectSceneLinear(uv + chroma).r, - center.g, - effectSceneLinear(uv - chroma).b - ); - - vec2 bloom_px = texel * BLOOM_RADIUS_PX; - vec3 bloom = brightPass(uv + vec2(bloom_px.x, 0.0)) + - brightPass(uv - vec2(bloom_px.x, 0.0)) + - brightPass(uv + vec2(0.0, bloom_px.y)) + - brightPass(uv - vec2(0.0, bloom_px.y)); - col += bloom * (0.25 * BLOOM_STRENGTH); - - // The mask has unit mean and the scan loss stays small; neither needs - // the old global lift that remapped every theme toward white. - float scan_wave = 0.5 + 0.5 * cos(gl_FragCoord.y * TAU / SCAN_PERIOD_PX); - col *= 1.0 - SCAN_STRENGTH * scan_wave * scan_wave; - vec3 mask = 1.0 + MASK_STRENGTH * cos( - gl_FragCoord.x * TAU / MASK_PERIOD_PX + vec3(0.0, TAU / 3.0, 2.0 * TAU / 3.0) - ); - col *= mask; - - vec2 edge_px = min(uv, 1.0 - uv) * size; - float tube = smoothstep(0.0, EDGE_SOFTNESS_PX, min(edge_px.x, edge_px.y)); - float vignette = 1.0 - VIGNETTE_STRENGTH * pow(clamp(r2 * 0.5, 0.0, 1.0), 1.6); - float hum = 1.0 + HUM_STRENGTH * sin((uv.y * 1.35 - u_crt.time_seconds * 0.11) * TAU); - col *= tube * vignette * hum * EXPOSURE; - // The tube's edge falloff dims coverage as well as colour; everything - // else here is a light adjustment and leaves it alone. - alpha = sceneSrgb(uv).a * tube; - - float luma = dot(col, vec3(0.2126, 0.7152, 0.0722)); - vec2 noise_seed = gl_FragCoord.xy + vec2(u_crt.frame * 17.0, u_crt.frame * 59.0); - col += (noiseAt(noise_seed) - 0.5) * NOISE_STRENGTH * (0.15 + 0.85 * clamp(luma, 0.0, 1.0)); - } - o_col = vec4(linearToSrgb(clamp(col, 0.0, 1.0)), clamp(alpha, 0.0, 1.0)); -} diff --git a/shaders/crt.vert.glsl b/shaders/crt.vert.glsl deleted file mode 100644 index 4e15fcdf..00000000 --- a/shaders/crt.vert.glsl +++ /dev/null @@ -1,9 +0,0 @@ -#version 450 - -// CRT post-process pass: one fullscreen triangle from gl_VertexIndex, no -// vertex buffer. The fragment shader derives uv from gl_FragCoord. - -void main() { - vec2 p = vec2(float((gl_VertexIndex << 1) & 2), float(gl_VertexIndex & 2)); - gl_Position = vec4(p * 2.0 - 1.0, 0.0, 1.0); -} diff --git a/shaders/decor.frag.glsl b/shaders/decor.frag.glsl new file mode 100644 index 00000000..4c2bd6d8 --- /dev/null +++ b/shaders/decor.frag.glsl @@ -0,0 +1,24 @@ +#version 450 + +// Decor: a flat, hard-edged fill (a rule, a rail, a grip mark, a bar cursor) +// that ui.vert.glsl places like a cell, its track's transition included. Its +// colour rides in the cell's ground (a_bg) and its coverage in a_fg.r. The +// pipeline blends it as the overlay pipeline does (backgroundLayerBlend), so +// a fading rule shows through, and the result is that pipeline's exactly. +// Ink (a cursor) is drawn with the opacity uniform at 1. + +layout(std140, set = 3, binding = 0) uniform UiUniforms { + float background_opacity; +} u_ui; + +layout(location = 1) in vec3 v_fg; +layout(location = 2) in vec3 v_bg; +layout(location = 5) flat in vec4 v_clip; + +layout(location = 0) out vec4 o_col; + +void main() { + if (v_clip.z >= v_clip.x && (gl_FragCoord.x < v_clip.x || gl_FragCoord.x >= v_clip.z || + gl_FragCoord.y < v_clip.y || gl_FragCoord.y >= v_clip.w)) discard; + o_col = vec4(v_bg * clamp(u_ui.background_opacity, 0.0, 1.0), v_fg.r); +} diff --git a/shaders/post.vert.glsl b/shaders/post.vert.glsl new file mode 100644 index 00000000..86739a65 --- /dev/null +++ b/shaders/post.vert.glsl @@ -0,0 +1,10 @@ +#version 450 + +// A post pass (docs/render-pipeline.md §6): one fullscreen triangle from +// gl_VertexIndex, no vertex buffer. The Shadertoy fragment shader works from +// gl_FragCoord, y down, as its fragCoord. + +void main() { + vec2 p = vec2(float((gl_VertexIndex << 1) & 2), float(gl_VertexIndex & 2)); + gl_Position = vec4(p * 2.0 - 1.0, 0.0, 1.0); +} diff --git a/shaders/post/crt.glsl b/shaders/post/crt.glsl new file mode 100644 index 00000000..768157ef --- /dev/null +++ b/shaders/post/crt.glsl @@ -0,0 +1,83 @@ +// Crt: a slot-mask tube's light, with nothing that moves a pixel. There is +// no barrel: every click lands where it is drawn, rails and grips at the +// window's edges included. What is left is light: a beam profile for the +// scanlines, an aperture mask, a soft bloom of the brightest ink, a faint +// vignette and the hum of a live tube. Everything is worked out in linear +// light and dithered back into 8 bits, so the vignette never bands. It is a +// Shadertoy file: pardes puts its prefix before it (shaders/post/prefix.glsl). + +const float TAU = 6.28318530718; +// Level 3 glows wider and from dimmer ink. +float bloomRadiusPx() { return pardesByLevel(1.75, 1.75, 3.0); } +float bloomThreshold() { return pardesByLevel(0.6, 0.6, 0.3); } // linear-light channel peak +const float BLOOM_SOFTNESS = 0.25; +const float SCAN_PERIOD_PX = 3.0; +const float MASK_PERIOD_PX = 3.0; +const float HUM_HZ = 0.11; + +// Each strength at levels 1, 2 and 3 (`Crt 1`..`Crt 3`): 2 is the default, +// 3 as strong as the old barrel CRT looked. +float chromaPx() { return pardesByLevel(0.2, 0.35, 2.2); } // red and blue apart, at the corners +float bloomStrength() { return pardesByLevel(0.03, 0.05, 0.3); } +float scanStrength() { return pardesByLevel(0.035, 0.07, 0.42); } +float maskStrength() { return pardesByLevel(0.01, 0.018, 0.12); } +float vignetteStrength() { return pardesByLevel(0.06, 0.12, 0.42); } // at the far corners only +float humStrength() { return pardesByLevel(0.002, 0.004, 0.012); } +float exposure() { return pardesByLevel(1.008, 1.015, 1.1); } + +vec3 toLinear(vec3 c) { + return mix(pow((c + 0.055) / 1.055, vec3(2.4)), c / 12.92, lessThanEqual(c, vec3(0.04045))); +} + +vec3 toSrgb(vec3 c) { + c = max(c, vec3(0.0)); + return mix(1.055 * pow(c, vec3(1.0 / 2.4)) - 0.055, c * 12.92, lessThanEqual(c, vec3(0.0031308))); +} + +vec3 scene(vec2 uv) { + return toLinear(texture(iChannel0, uv).rgb); +} + +vec3 brightPass(vec2 uv) { + vec3 c = scene(uv); + float peak = max(c.r, max(c.g, c.b)); + return c * smoothstep(bloomThreshold(), bloomThreshold() + BLOOM_SOFTNESS, peak); +} + +// Interleaved gradient noise: a dither with no visible pattern. +float ign(vec2 p) { + return fract(52.9829189 * fract(dot(p, vec2(0.06711056, 0.00583715)))); +} + +void mainImage(out vec4 fragColor, in vec2 fragCoord) { + vec2 size = iResolution.xy; + vec2 texel = 1.0 / size; + vec2 uv = fragCoord / size; + vec2 cc = uv * 2.0 - 1.0; + float r2 = dot(cc, cc); + + // The beam converges least at the corners: red and blue drift apart + // there, by a third of a pixel. + vec2 chroma = cc * (chromaPx() * r2 * 0.5) * texel; + vec3 col = vec3(scene(uv + chroma).r, scene(uv).g, scene(uv - chroma).b); + + vec2 b = texel * bloomRadiusPx(); + vec3 bloom = brightPass(uv + vec2(b.x, 0.0)) + brightPass(uv - vec2(b.x, 0.0)) + + brightPass(uv + vec2(0.0, b.y)) + brightPass(uv - vec2(0.0, b.y)); + col += bloom * (0.25 * bloomStrength()); + + // A beam is brightest on its line and falls off between lines; the + // mask is three phosphor stripes a triad. Both average to one, so the + // theme keeps its brightness. + float line = 0.5 + 0.5 * cos(fragCoord.y * TAU / SCAN_PERIOD_PX); + col *= 1.0 - scanStrength() * (line * line - 0.375) / 0.625; + col *= 1.0 + maskStrength() * cos(fragCoord.x * TAU / MASK_PERIOD_PX + vec3(0.0, TAU / 3.0, 2.0 * TAU / 3.0)); + + float vignette = 1.0 - vignetteStrength() * pow(clamp(r2 * 0.5, 0.0, 1.0), 1.6); + float hum = 1.0 + humStrength() * sin((uv.y * 1.35 - iTime * HUM_HZ) * TAU); + col *= vignette * hum * exposure(); + + vec3 srgb = toSrgb(col); + srgb += (ign(fragCoord + float(iFrame % 64) * vec2(5.588238, 5.588238)) - 0.5) / 255.0; + fragColor = vec4(clamp(srgb, 0.0, 1.0), texture(iChannel0, uv).a); +} diff --git a/shaders/post/prefix.glsl b/shaders/post/prefix.glsl new file mode 100644 index 00000000..e718a98f --- /dev/null +++ b/shaders/post/prefix.glsl @@ -0,0 +1,74 @@ +#version 450 +// pardes's Shadertoy prefix (docs/render-pipeline.md §6), put before every +// post pass: a bundled one in shaders/post/ at build time, a user's file at +// run time. The uniform names, types and std140 order are ghostty 1.3.2's +// (src/renderer/shaders/shadertoy_prefix.glsl), so a shader written for +// ghostty runs here; only the bindings are SDL GPU's (a fragment shader's +// textures in set 2, its uniform blocks in set 3). Y is down everywhere, as +// on ghostty's Metal renderer: fragCoord, iChannel0's uv and the cursor +// rectangles share one top-left space, and iCurrentCursor is (left x, +// BOTTOM-edge y, width, height) in framebuffer pixels. + +layout(set = 3, binding = 0, std140) uniform Globals { + uniform vec3 iResolution; + uniform float iTime; + uniform float iTimeDelta; + uniform float iFrameRate; + uniform int iFrame; + uniform float iChannelTime[4]; + uniform vec3 iChannelResolution[4]; + uniform vec4 iMouse; + uniform vec4 iDate; + uniform float iSampleRate; + uniform vec4 iCurrentCursor; + uniform vec4 iPreviousCursor; + uniform vec4 iCurrentCursorColor; + uniform vec4 iPreviousCursorColor; + uniform int iCurrentCursorStyle; + uniform int iPreviousCursorStyle; + uniform int iCursorVisible; + uniform float iTimeCursorChange; + uniform float iTimeFocus; + uniform int iFocus; + uniform vec3 iPalette[256]; + uniform vec3 iBackgroundColor; + uniform vec3 iForegroundColor; + uniform vec3 iCursorColor; + uniform vec3 iCursorText; + uniform vec3 iSelectionForegroundColor; + uniform vec3 iSelectionBackgroundColor; +}; + +// pardes's own: pardesOpaque is 1 when the window is opaque, so a pass +// cannot punch holes in it through its alpha; pardesLevel is a bundled +// pass's strength, 1 to 3 (`Crt 3`), and 0 for a user's file. +layout(set = 3, binding = 1, std140) uniform PardesPost { + float pardesOpaque; + float pardesLevel; +}; + +// A bundled pass's constant at levels 1, 2 and 3. +float pardesByLevel(float one, float two, float three) { + return pardesLevel < 1.5 ? one : (pardesLevel < 2.5 ? two : three); +} + +#define CURSORSTYLE_BLOCK 0 +#define CURSORSTYLE_BLOCK_HOLLOW 1 +#define CURSORSTYLE_BAR 2 +#define CURSORSTYLE_UNDERLINE 3 +#define CURSORSTYLE_LOCK 4 + +layout(set = 2, binding = 0) uniform sampler2D iChannel0; + +layout(location = 0) out vec4 _fragColor; + +#define texture2D texture + +void mainImage(out vec4 fragColor, in vec2 fragCoord); +void main() { + mainImage(_fragColor, gl_FragCoord.xy); + if (pardesOpaque > 0.5) _fragColor.a = 1.0; +} + +// The shader's own lines count from 1, so glslc's errors name them. +#line 1 diff --git a/shaders/prebuilt/crt.frag.glsl b/shaders/prebuilt/crt.frag.glsl deleted file mode 100644 index b0b0b93b..00000000 --- a/shaders/prebuilt/crt.frag.glsl +++ /dev/null @@ -1,175 +0,0 @@ -#version 450 - -// The Crt builtin's post-process. Screen point cc shows the scene at -// uv' = cc*(1 + BARREL*r2), and src/gui/crt.zig maps mouse input through that -// same transform — keep them equal or clicks drift near the edges. - -layout(set = 2, binding = 0) uniform sampler2D u_scene; -layout(std140, set = 3, binding = 0) uniform CrtUniforms { - float time_seconds; - float frame; - vec2 viewport; - // x = CRT, y = ripple, z = glitch. One scene pass can combine them. - vec4 effects; -} u_crt; - -layout(location = 0) out vec4 o_col; - -const float TAU = 6.28318530718; -const float BARREL = 0.016; // MUST match src/gui/crt.zig barrel -const float EDGE_SOFTNESS_PX = 3.5; -const float CHROMA_PX = 0.28; // radial R/B separation in physical pixels at r2=1 -const float BLOOM_RADIUS_PX = 1.75; -const float BLOOM_THRESHOLD = 0.60; // linear-light channel peak -const float BLOOM_SOFTNESS = 0.25; -const float BLOOM_STRENGTH = 0.045; -const float SCAN_PERIOD_PX = 3.0; -const float SCAN_STRENGTH = 0.055; -const float MASK_PERIOD_PX = 3.0; -const float MASK_STRENGTH = 0.015; -const float VIGNETTE_STRENGTH = 0.11; // 11% only at the extreme corners -const float HUM_STRENGTH = 0.0025; -const float NOISE_STRENGTH = 0.0020; -const float EXPOSURE = 1.012; - -vec3 srgbToLinear(vec3 c) { - vec3 low = c / 12.92; - vec3 high = pow((c + 0.055) / 1.055, vec3(2.4)); - return mix(high, low, lessThanEqual(c, vec3(0.04045))); -} - -vec3 linearToSrgb(vec3 c) { - c = max(c, vec3(0.0)); - vec3 low = c * 12.92; - vec3 high = 1.055 * pow(c, vec3(1.0 / 2.4)) - 0.055; - return mix(high, low, lessThanEqual(c, vec3(0.0031308))); -} - -vec3 sceneLinear(vec2 uv) { - return srgbToLinear(texture(u_scene, uv).rgb); -} - -vec3 brightPass(vec2 uv) { - vec3 c = sceneLinear(uv); - float peak = max(c.r, max(c.g, c.b)); - return c * smoothstep(BLOOM_THRESHOLD, BLOOM_THRESHOLD + BLOOM_SOFTNESS, peak); -} - -float noiseAt(vec2 p) { - vec3 q = fract(vec3(p.xyx) * 0.1031); - q += dot(q, q.yzx + 33.33); - return fract((q.x + q.y) * q.z); -} - -// The non-CRT scene effects deliberately distort the source coordinates, -// rather than remapping the final colors. Themes retain their palette and the -// effects remain composable with the linear-light CRT treatment below. -vec2 sceneUv(vec2 uv) { - if (u_crt.effects.y > 0.5) { - vec2 centered = uv - 0.5; - float radius = length(centered); - float envelope = 1.0 - smoothstep(0.04, 0.72, radius); - float wave = sin(radius * 42.0 - u_crt.time_seconds * 5.2); - uv += centered / max(radius, 0.00001) * wave * envelope * 0.0032; - } - if (u_crt.effects.z > 0.5) { - float band = floor(uv.y * 96.0); - float seed = noiseAt(vec2(band, floor(u_crt.time_seconds * 13.0))); - float tear = smoothstep(0.955, 1.0, seed); - uv.x += (noiseAt(vec2(seed, band)) - 0.5) * tear * 0.020; - } - return uv; -} - -// The scene, ALPHA INCLUDED: with a see-through ground the grid arrives -// premultiplied and partly empty, and a pass that dropped .a would turn the -// desktop behind a `*_transparent` theme into opaque black the moment Crt, -// Ripple or Glitch came on. -vec4 sceneSrgb(vec2 uv) { - vec2 warped = sceneUv(uv); - vec4 center = texture(u_scene, warped); - if (u_crt.effects.z <= 0.5) return center; - - float band = floor(warped.y * 96.0); - float seed = noiseAt(vec2(band, floor(u_crt.time_seconds * 13.0))); - float tear = smoothstep(0.955, 1.0, seed); - vec2 chroma = vec2((0.35 + 1.25 * tear) / u_crt.viewport.x, 0.0); - return vec4( - texture(u_scene, warped + chroma).r, - center.g, - texture(u_scene, warped - chroma).b, - center.a - ); -} - -vec3 effectSceneLinear(vec2 uv) { - return srgbToLinear(sceneSrgb(uv).rgb); -} - -void main() { - vec2 size = u_crt.viewport; - vec2 texel = 1.0 / size; - vec2 cc = gl_FragCoord.xy / size * 2.0 - 1.0; - float r2 = dot(cc, cc); - vec2 uv = cc * (1.0 + BARREL * r2 * u_crt.effects.x) * 0.5 + 0.5; - - // Ripple and glitch are useful without the CRT. They only move samples; - // skip every tube-specific light/mask/exposure adjustment. - if (u_crt.effects.x <= 0.5) { - // The scene texture is already sRGB. Avoid a needless transfer-curve - // round trip so a coordinate-only effect preserves theme bytes. - vec4 s = sceneSrgb(uv); - o_col = vec4(clamp(s.rgb, 0.0, 1.0), clamp(s.a, 0.0, 1.0)); - return; - } - - vec3 col = vec3(0.0); - // Outside the tube nothing is drawn, so nothing is covered either: the - // old opaque black there would have punched a rectangle out of the - // compositor's backdrop. - float alpha = 0.0; - float edge = min(min(uv.x, uv.y), min(1.0 - uv.x, 1.0 - uv.y)); - if (edge > 0.0) { - vec3 center = effectSceneLinear(uv); - vec2 chroma = cc * (CHROMA_PX * r2) * texel; - // Each radial sample follows the same ripple/glitch path from its own - // pre-warp coordinate. This is also how the Metal kernel composes the - // effects; sampling a once-warped center here made combined effects - // diverge between the two GUI backends. - col = vec3( - effectSceneLinear(uv + chroma).r, - center.g, - effectSceneLinear(uv - chroma).b - ); - - vec2 bloom_px = texel * BLOOM_RADIUS_PX; - vec3 bloom = brightPass(uv + vec2(bloom_px.x, 0.0)) + - brightPass(uv - vec2(bloom_px.x, 0.0)) + - brightPass(uv + vec2(0.0, bloom_px.y)) + - brightPass(uv - vec2(0.0, bloom_px.y)); - col += bloom * (0.25 * BLOOM_STRENGTH); - - // The mask has unit mean and the scan loss stays small; neither needs - // the old global lift that remapped every theme toward white. - float scan_wave = 0.5 + 0.5 * cos(gl_FragCoord.y * TAU / SCAN_PERIOD_PX); - col *= 1.0 - SCAN_STRENGTH * scan_wave * scan_wave; - vec3 mask = 1.0 + MASK_STRENGTH * cos( - gl_FragCoord.x * TAU / MASK_PERIOD_PX + vec3(0.0, TAU / 3.0, 2.0 * TAU / 3.0) - ); - col *= mask; - - vec2 edge_px = min(uv, 1.0 - uv) * size; - float tube = smoothstep(0.0, EDGE_SOFTNESS_PX, min(edge_px.x, edge_px.y)); - float vignette = 1.0 - VIGNETTE_STRENGTH * pow(clamp(r2 * 0.5, 0.0, 1.0), 1.6); - float hum = 1.0 + HUM_STRENGTH * sin((uv.y * 1.35 - u_crt.time_seconds * 0.11) * TAU); - col *= tube * vignette * hum * EXPOSURE; - // The tube's edge falloff dims coverage as well as colour; everything - // else here is a light adjustment and leaves it alone. - alpha = sceneSrgb(uv).a * tube; - - float luma = dot(col, vec3(0.2126, 0.7152, 0.0722)); - vec2 noise_seed = gl_FragCoord.xy + vec2(u_crt.frame * 17.0, u_crt.frame * 59.0); - col += (noiseAt(noise_seed) - 0.5) * NOISE_STRENGTH * (0.15 + 0.85 * clamp(luma, 0.0, 1.0)); - } - o_col = vec4(linearToSrgb(clamp(col, 0.0, 1.0)), clamp(alpha, 0.0, 1.0)); -} diff --git a/shaders/prebuilt/crt.frag.spv b/shaders/prebuilt/crt.frag.spv Binary files differdeleted file mode 100644 index f0e14627..00000000 --- a/shaders/prebuilt/crt.frag.spv +++ /dev/null diff --git a/shaders/prebuilt/crt.vert.glsl b/shaders/prebuilt/crt.vert.glsl deleted file mode 100644 index 4e15fcdf..00000000 --- a/shaders/prebuilt/crt.vert.glsl +++ /dev/null @@ -1,9 +0,0 @@ -#version 450 - -// CRT post-process pass: one fullscreen triangle from gl_VertexIndex, no -// vertex buffer. The fragment shader derives uv from gl_FragCoord. - -void main() { - vec2 p = vec2(float((gl_VertexIndex << 1) & 2), float(gl_VertexIndex & 2)); - gl_Position = vec4(p * 2.0 - 1.0, 0.0, 1.0); -} diff --git a/shaders/prebuilt/decor.frag.glsl b/shaders/prebuilt/decor.frag.glsl new file mode 100644 index 00000000..4c2bd6d8 --- /dev/null +++ b/shaders/prebuilt/decor.frag.glsl @@ -0,0 +1,24 @@ +#version 450 + +// Decor: a flat, hard-edged fill (a rule, a rail, a grip mark, a bar cursor) +// that ui.vert.glsl places like a cell, its track's transition included. Its +// colour rides in the cell's ground (a_bg) and its coverage in a_fg.r. The +// pipeline blends it as the overlay pipeline does (backgroundLayerBlend), so +// a fading rule shows through, and the result is that pipeline's exactly. +// Ink (a cursor) is drawn with the opacity uniform at 1. + +layout(std140, set = 3, binding = 0) uniform UiUniforms { + float background_opacity; +} u_ui; + +layout(location = 1) in vec3 v_fg; +layout(location = 2) in vec3 v_bg; +layout(location = 5) flat in vec4 v_clip; + +layout(location = 0) out vec4 o_col; + +void main() { + if (v_clip.z >= v_clip.x && (gl_FragCoord.x < v_clip.x || gl_FragCoord.x >= v_clip.z || + gl_FragCoord.y < v_clip.y || gl_FragCoord.y >= v_clip.w)) discard; + o_col = vec4(v_bg * clamp(u_ui.background_opacity, 0.0, 1.0), v_fg.r); +} diff --git a/shaders/prebuilt/decor.frag.spv b/shaders/prebuilt/decor.frag.spv Binary files differnew file mode 100644 index 00000000..7e162f5a --- /dev/null +++ b/shaders/prebuilt/decor.frag.spv diff --git a/shaders/prebuilt/post-crt.frag.glsl b/shaders/prebuilt/post-crt.frag.glsl new file mode 100644 index 00000000..c2cadfa2 --- /dev/null +++ b/shaders/prebuilt/post-crt.frag.glsl @@ -0,0 +1,157 @@ +#version 450 +// pardes's Shadertoy prefix (docs/render-pipeline.md §6), put before every +// post pass: a bundled one in shaders/post/ at build time, a user's file at +// run time. The uniform names, types and std140 order are ghostty 1.3.2's +// (src/renderer/shaders/shadertoy_prefix.glsl), so a shader written for +// ghostty runs here; only the bindings are SDL GPU's (a fragment shader's +// textures in set 2, its uniform blocks in set 3). Y is down everywhere, as +// on ghostty's Metal renderer: fragCoord, iChannel0's uv and the cursor +// rectangles share one top-left space, and iCurrentCursor is (left x, +// BOTTOM-edge y, width, height) in framebuffer pixels. + +layout(set = 3, binding = 0, std140) uniform Globals { + uniform vec3 iResolution; + uniform float iTime; + uniform float iTimeDelta; + uniform float iFrameRate; + uniform int iFrame; + uniform float iChannelTime[4]; + uniform vec3 iChannelResolution[4]; + uniform vec4 iMouse; + uniform vec4 iDate; + uniform float iSampleRate; + uniform vec4 iCurrentCursor; + uniform vec4 iPreviousCursor; + uniform vec4 iCurrentCursorColor; + uniform vec4 iPreviousCursorColor; + uniform int iCurrentCursorStyle; + uniform int iPreviousCursorStyle; + uniform int iCursorVisible; + uniform float iTimeCursorChange; + uniform float iTimeFocus; + uniform int iFocus; + uniform vec3 iPalette[256]; + uniform vec3 iBackgroundColor; + uniform vec3 iForegroundColor; + uniform vec3 iCursorColor; + uniform vec3 iCursorText; + uniform vec3 iSelectionForegroundColor; + uniform vec3 iSelectionBackgroundColor; +}; + +// pardes's own: pardesOpaque is 1 when the window is opaque, so a pass +// cannot punch holes in it through its alpha; pardesLevel is a bundled +// pass's strength, 1 to 3 (`Crt 3`), and 0 for a user's file. +layout(set = 3, binding = 1, std140) uniform PardesPost { + float pardesOpaque; + float pardesLevel; +}; + +// A bundled pass's constant at levels 1, 2 and 3. +float pardesByLevel(float one, float two, float three) { + return pardesLevel < 1.5 ? one : (pardesLevel < 2.5 ? two : three); +} + +#define CURSORSTYLE_BLOCK 0 +#define CURSORSTYLE_BLOCK_HOLLOW 1 +#define CURSORSTYLE_BAR 2 +#define CURSORSTYLE_UNDERLINE 3 +#define CURSORSTYLE_LOCK 4 + +layout(set = 2, binding = 0) uniform sampler2D iChannel0; + +layout(location = 0) out vec4 _fragColor; + +#define texture2D texture + +void mainImage(out vec4 fragColor, in vec2 fragCoord); +void main() { + mainImage(_fragColor, gl_FragCoord.xy); + if (pardesOpaque > 0.5) _fragColor.a = 1.0; +} + +// The shader's own lines count from 1, so glslc's errors name them. +#line 1 +// Crt: a slot-mask tube's light, with nothing that moves a pixel. There is +// no barrel: every click lands where it is drawn, rails and grips at the +// window's edges included. What is left is light: a beam profile for the +// scanlines, an aperture mask, a soft bloom of the brightest ink, a faint +// vignette and the hum of a live tube. Everything is worked out in linear +// light and dithered back into 8 bits, so the vignette never bands. It is a +// Shadertoy file: pardes puts its prefix before it (shaders/post/prefix.glsl). + +const float TAU = 6.28318530718; +// Level 3 glows wider and from dimmer ink. +float bloomRadiusPx() { return pardesByLevel(1.75, 1.75, 3.0); } +float bloomThreshold() { return pardesByLevel(0.6, 0.6, 0.3); } // linear-light channel peak +const float BLOOM_SOFTNESS = 0.25; +const float SCAN_PERIOD_PX = 3.0; +const float MASK_PERIOD_PX = 3.0; +const float HUM_HZ = 0.11; + +// Each strength at levels 1, 2 and 3 (`Crt 1`..`Crt 3`): 2 is the default, +// 3 as strong as the old barrel CRT looked. +float chromaPx() { return pardesByLevel(0.2, 0.35, 2.2); } // red and blue apart, at the corners +float bloomStrength() { return pardesByLevel(0.03, 0.05, 0.3); } +float scanStrength() { return pardesByLevel(0.035, 0.07, 0.42); } +float maskStrength() { return pardesByLevel(0.01, 0.018, 0.12); } +float vignetteStrength() { return pardesByLevel(0.06, 0.12, 0.42); } // at the far corners only +float humStrength() { return pardesByLevel(0.002, 0.004, 0.012); } +float exposure() { return pardesByLevel(1.008, 1.015, 1.1); } + +vec3 toLinear(vec3 c) { + return mix(pow((c + 0.055) / 1.055, vec3(2.4)), c / 12.92, lessThanEqual(c, vec3(0.04045))); +} + +vec3 toSrgb(vec3 c) { + c = max(c, vec3(0.0)); + return mix(1.055 * pow(c, vec3(1.0 / 2.4)) - 0.055, c * 12.92, lessThanEqual(c, vec3(0.0031308))); +} + +vec3 scene(vec2 uv) { + return toLinear(texture(iChannel0, uv).rgb); +} + +vec3 brightPass(vec2 uv) { + vec3 c = scene(uv); + float peak = max(c.r, max(c.g, c.b)); + return c * smoothstep(bloomThreshold(), bloomThreshold() + BLOOM_SOFTNESS, peak); +} + +// Interleaved gradient noise: a dither with no visible pattern. +float ign(vec2 p) { + return fract(52.9829189 * fract(dot(p, vec2(0.06711056, 0.00583715)))); +} + +void mainImage(out vec4 fragColor, in vec2 fragCoord) { + vec2 size = iResolution.xy; + vec2 texel = 1.0 / size; + vec2 uv = fragCoord / size; + vec2 cc = uv * 2.0 - 1.0; + float r2 = dot(cc, cc); + + // The beam converges least at the corners: red and blue drift apart + // there, by a third of a pixel. + vec2 chroma = cc * (chromaPx() * r2 * 0.5) * texel; + vec3 col = vec3(scene(uv + chroma).r, scene(uv).g, scene(uv - chroma).b); + + vec2 b = texel * bloomRadiusPx(); + vec3 bloom = brightPass(uv + vec2(b.x, 0.0)) + brightPass(uv - vec2(b.x, 0.0)) + + brightPass(uv + vec2(0.0, b.y)) + brightPass(uv - vec2(0.0, b.y)); + col += bloom * (0.25 * bloomStrength()); + + // A beam is brightest on its line and falls off between lines; the + // mask is three phosphor stripes a triad. Both average to one, so the + // theme keeps its brightness. + float line = 0.5 + 0.5 * cos(fragCoord.y * TAU / SCAN_PERIOD_PX); + col *= 1.0 - scanStrength() * (line * line - 0.375) / 0.625; + col *= 1.0 + maskStrength() * cos(fragCoord.x * TAU / MASK_PERIOD_PX + vec3(0.0, TAU / 3.0, 2.0 * TAU / 3.0)); + + float vignette = 1.0 - vignetteStrength() * pow(clamp(r2 * 0.5, 0.0, 1.0), 1.6); + float hum = 1.0 + humStrength() * sin((uv.y * 1.35 - iTime * HUM_HZ) * TAU); + col *= vignette * hum * exposure(); + + vec3 srgb = toSrgb(col); + srgb += (ign(fragCoord + float(iFrame % 64) * vec2(5.588238, 5.588238)) - 0.5) / 255.0; + fragColor = vec4(clamp(srgb, 0.0, 1.0), texture(iChannel0, uv).a); +} diff --git a/shaders/prebuilt/post-crt.frag.spv b/shaders/prebuilt/post-crt.frag.spv Binary files differnew file mode 100644 index 00000000..6599abd9 --- /dev/null +++ b/shaders/prebuilt/post-crt.frag.spv diff --git a/shaders/prebuilt/post.vert.glsl b/shaders/prebuilt/post.vert.glsl new file mode 100644 index 00000000..86739a65 --- /dev/null +++ b/shaders/prebuilt/post.vert.glsl @@ -0,0 +1,10 @@ +#version 450 + +// A post pass (docs/render-pipeline.md §6): one fullscreen triangle from +// gl_VertexIndex, no vertex buffer. The Shadertoy fragment shader works from +// gl_FragCoord, y down, as its fragCoord. + +void main() { + vec2 p = vec2(float((gl_VertexIndex << 1) & 2), float(gl_VertexIndex & 2)); + gl_Position = vec4(p * 2.0 - 1.0, 0.0, 1.0); +} diff --git a/shaders/prebuilt/crt.vert.spv b/shaders/prebuilt/post.vert.spv Binary files differindex 8a75ebb3..8a75ebb3 100644 --- a/shaders/prebuilt/crt.vert.spv +++ b/shaders/prebuilt/post.vert.spv diff --git a/shaders/prebuilt/ui.frag.glsl b/shaders/prebuilt/ui.frag.glsl index 3c366602..0b099db3 100644 --- a/shaders/prebuilt/ui.frag.glsl +++ b/shaders/prebuilt/ui.frag.glsl @@ -17,6 +17,7 @@ layout(location = 1) in vec3 v_fg; layout(location = 2) in vec3 v_bg; layout(location = 3) in vec2 v_cell_uv; layout(location = 4) flat in uvec4 v_effect; +layout(location = 5) flat in vec4 v_clip; layout(location = 0) out vec4 o_col; @@ -31,6 +32,8 @@ float cellNoise(uint serial, uint col, uint row) { } void main() { + if (v_clip.z >= v_clip.x && (gl_FragCoord.x < v_clip.x || gl_FragCoord.x >= v_clip.z || + gl_FragCoord.y < v_clip.y || gl_FragCoord.y >= v_clip.w)) discard; float a = texture(u_atlas, v_uv).r; bool oldLayer = (v_effect.x & 0x80000000u) != 0u; // A block cursor is foreground chrome even though its fill occupies the diff --git a/shaders/prebuilt/ui.frag.spv b/shaders/prebuilt/ui.frag.spv Binary files differindex 120438e7..033c10ab 100644 --- a/shaders/prebuilt/ui.frag.spv +++ b/shaders/prebuilt/ui.frag.spv diff --git a/shaders/prebuilt/ui.vert.glsl b/shaders/prebuilt/ui.vert.glsl index d23b609c..c1779add 100644 --- a/shaders/prebuilt/ui.vert.glsl +++ b/shaders/prebuilt/ui.vert.glsl @@ -19,12 +19,17 @@ layout(location = 5) in vec4 a_present_rect; // the id is what is left below them; integer transport preserves the exact // cross-backend hash. layout(location = 6) in uvec4 a_effect; +// A clip rectangle in target pixels (x0, y0, x1, y1): the fragment shader +// drops what lies outside it. x1 < x0 is none. A vertical transition clips +// its pane's instances to the box the pane is growing into. +layout(location = 7) in vec4 a_clip; layout(location = 0) out vec2 v_uv; layout(location = 1) out vec3 v_fg; layout(location = 2) out vec3 v_bg; layout(location = 3) out vec2 v_cell_uv; layout(location = 4) flat out uvec4 v_effect; +layout(location = 5) flat out vec4 v_clip; void main() { vec2 pos; @@ -70,5 +75,6 @@ void main() { v_fg = a_fg; v_bg = a_bg; v_effect = a_effect; + v_clip = a_clip; gl_Position = vec4(pos, 0.0, 1.0); } diff --git a/shaders/prebuilt/ui.vert.spv b/shaders/prebuilt/ui.vert.spv Binary files differindex 659049dd..619a9690 100644 --- a/shaders/prebuilt/ui.vert.spv +++ b/shaders/prebuilt/ui.vert.spv diff --git a/shaders/ui.frag.glsl b/shaders/ui.frag.glsl index 3c366602..0b099db3 100644 --- a/shaders/ui.frag.glsl +++ b/shaders/ui.frag.glsl @@ -17,6 +17,7 @@ layout(location = 1) in vec3 v_fg; layout(location = 2) in vec3 v_bg; layout(location = 3) in vec2 v_cell_uv; layout(location = 4) flat in uvec4 v_effect; +layout(location = 5) flat in vec4 v_clip; layout(location = 0) out vec4 o_col; @@ -31,6 +32,8 @@ float cellNoise(uint serial, uint col, uint row) { } void main() { + if (v_clip.z >= v_clip.x && (gl_FragCoord.x < v_clip.x || gl_FragCoord.x >= v_clip.z || + gl_FragCoord.y < v_clip.y || gl_FragCoord.y >= v_clip.w)) discard; float a = texture(u_atlas, v_uv).r; bool oldLayer = (v_effect.x & 0x80000000u) != 0u; // A block cursor is foreground chrome even though its fill occupies the diff --git a/shaders/ui.vert.glsl b/shaders/ui.vert.glsl index d23b609c..c1779add 100644 --- a/shaders/ui.vert.glsl +++ b/shaders/ui.vert.glsl @@ -19,12 +19,17 @@ layout(location = 5) in vec4 a_present_rect; // the id is what is left below them; integer transport preserves the exact // cross-backend hash. layout(location = 6) in uvec4 a_effect; +// A clip rectangle in target pixels (x0, y0, x1, y1): the fragment shader +// drops what lies outside it. x1 < x0 is none. A vertical transition clips +// its pane's instances to the box the pane is growing into. +layout(location = 7) in vec4 a_clip; layout(location = 0) out vec2 v_uv; layout(location = 1) out vec3 v_fg; layout(location = 2) out vec3 v_bg; layout(location = 3) out vec2 v_cell_uv; layout(location = 4) flat out uvec4 v_effect; +layout(location = 5) flat out vec4 v_clip; void main() { vec2 pos; @@ -70,5 +75,6 @@ void main() { v_fg = a_fg; v_bg = a_bg; v_effect = a_effect; + v_clip = a_clip; gl_Position = vec4(pos, 0.0, 1.0); } |