From 7c3c324b81812c49fa160b5970c0808840c4fc57 Mon Sep 17 00:00:00 2001 From: Arzed Five Date: Thu, 11 Aug 2016 15:58:13 +0100 Subject: [PATCH] (nonfunctional) Ported crt-easymode-halation. I assume the last pass has some mistake in it, which results in chromatic aberration and/or color shifting. --- .../crt-easymode-halation.slangp | 36 +++ .../crt-easymode-halation/blur_horiz.slang | 45 ++++ .../crt-easymode-halation/blur_params.inc | 5 + .../crt-easymode-halation.slang | 247 ++++++++++++++++++ .../crt-easymode-halation/linearize.slang | 37 +++ .../crt-easymode-halation/threshold.slang | 33 +++ 6 files changed, 403 insertions(+) create mode 100644 test/nonfunctional/crt-easymode-halation.slangp create mode 100644 test/nonfunctional/shaders/crt-easymode-halation/blur_horiz.slang create mode 100644 test/nonfunctional/shaders/crt-easymode-halation/blur_params.inc create mode 100644 test/nonfunctional/shaders/crt-easymode-halation/crt-easymode-halation.slang create mode 100644 test/nonfunctional/shaders/crt-easymode-halation/linearize.slang create mode 100644 test/nonfunctional/shaders/crt-easymode-halation/threshold.slang diff --git a/test/nonfunctional/crt-easymode-halation.slangp b/test/nonfunctional/crt-easymode-halation.slangp new file mode 100644 index 0000000..6275020 --- /dev/null +++ b/test/nonfunctional/crt-easymode-halation.slangp @@ -0,0 +1,36 @@ +shaders = "5" + +shader0 = "shaders/crt-easymode-halation/linearize.slang" +filter_linear0 = "false" +srgb_framebuffer0 = "true" +scale_type_x0 = "source" +scale_x0 = "1.000000" +scale_type_y0 = "source" +scale_y0 = "1.000000" + +shader1 = "shaders/crt-easymode-halation/blur_horiz.slang" +filter_linear1 = "false" +srgb_framebuffer1 = "true" +scale_type_x1 = "source" +scale_x1 = "1.000000" +scale_type_y1 = "source" +scale_y1 = "1.000000" + +shader2 = "shaders/glow/blur_vert.slang" +filter_linear2 = "false" +srgb_framebuffer2 = "true" +scale_type_x2 = "source" +scale_x2 = "1.000000" +scale_type_y2 = "source" +scale_y2 = "1.000000" + +shader3 = "shaders/crt-easymode-halation/threshold.slang" +filter_linear3 = "false" +srgb_framebuffer3 = "true" +scale_type_x3 = "source" +scale_x3 = "1.000000" +scale_type_y3 = "source" +scale_y3 = "1.000000" + +shader4 = "shaders/crt-easymode-halation/crt-easymode-halation.slang" +filter_linear4 = "true" diff --git a/test/nonfunctional/shaders/crt-easymode-halation/blur_horiz.slang b/test/nonfunctional/shaders/crt-easymode-halation/blur_horiz.slang new file mode 100644 index 0000000..96f2075 --- /dev/null +++ b/test/nonfunctional/shaders/crt-easymode-halation/blur_horiz.slang @@ -0,0 +1,45 @@ +#version 450 + +layout(std140, set = 0, binding = 0) uniform UBO +{ + mat4 MVP; + vec4 OutputSize; + vec4 OriginalSize; + vec4 SourceSize; +} global; + +#pragma stage vertex +layout(location = 0) in vec4 Position; +layout(location = 1) in vec2 TexCoord; +layout(location = 0) out vec2 vTexCoord; + +void main() +{ + gl_Position = global.MVP * Position; + vTexCoord = TexCoord; +} + +#pragma stage fragment +layout(location = 0) in vec2 vTexCoord; +layout(location = 0) out vec4 FragColor; +layout(set = 0, binding = 2) uniform sampler2D Source; + +#include "blur_params.inc" + +#define kernel(x) exp(-GLOW_FALLOFF * (x) * (x)) + +void main() +{ + vec3 col = vec3(0.0); + float dx = global.SourceSize.z; + + float k_total = 0.0; + for (int i = -TAPS; i <= TAPS; i++) + { + float k = kernel(i); + k_total += k; + col += k * texture(Source, vTexCoord + vec2(float(i) * dx, 0.0)).rgb; + } + + FragColor = vec4(col / k_total, 1.0); +} diff --git a/test/nonfunctional/shaders/crt-easymode-halation/blur_params.inc b/test/nonfunctional/shaders/crt-easymode-halation/blur_params.inc new file mode 100644 index 0000000..1a8615c --- /dev/null +++ b/test/nonfunctional/shaders/crt-easymode-halation/blur_params.inc @@ -0,0 +1,5 @@ +// Higher value, more centered glow. +// Lower values might need more taps. +#define GLOW_FALLOFF 0.35 +#define TAPS 4 + diff --git a/test/nonfunctional/shaders/crt-easymode-halation/crt-easymode-halation.slang b/test/nonfunctional/shaders/crt-easymode-halation/crt-easymode-halation.slang new file mode 100644 index 0000000..b45477e --- /dev/null +++ b/test/nonfunctional/shaders/crt-easymode-halation/crt-easymode-halation.slang @@ -0,0 +1,247 @@ +#version 450 + +/* + CRT Shader by EasyMode + License: GPL +*/ + +layout(push_constant) uniform Push +{ + float BRIGHTNESS; + float DIFFUSION; + float GAMMA_OUTPUT; + float GEOM_CORNER_SIZE; + float GEOM_CORNER_SMOOTH; + float GEOM_CURVATURE; + float GEOM_WARP; + float HALATION; + float INTERLACING_TOGGLE; + float MASK_SIZE; + float MASK_STRENGTH_MAX; + float MASK_STRENGTH_MIN; + float MASK_TYPE; + float SCANLINE_BEAM_MAX; + float SCANLINE_BEAM_MIN; + float SCANLINE_STRENGTH_MAX; + float SCANLINE_STRENGTH_MIN; + float SHARPNESS_H; + float SHARPNESS_V; +} param; + +#pragma parameter GAMMA_OUTPUT "Gamma Output" 2.2 0.1 5.0 0.01 +#pragma parameter SHARPNESS_H "Sharpness Horizontal" 0.6 0.0 1.0 0.05 +#pragma parameter SHARPNESS_V "Sharpness Vertical" 1.0 0.0 1.0 0.05 +#pragma parameter MASK_TYPE "Mask Type" 4.0 0.0 7.0 1.0 +#pragma parameter MASK_STRENGTH_MIN "Mask Strength Min." 0.2 0.0 0.5 0.01 +#pragma parameter MASK_STRENGTH_MAX "Mask Strength Max." 0.2 0.0 0.5 0.01 +#pragma parameter MASK_SIZE "Mask Size" 1.0 1.0 100.0 1.0 +#pragma parameter SCANLINE_STRENGTH_MIN "Scanline Strength Min." 0.2 0.0 1.0 0.05 +#pragma parameter SCANLINE_STRENGTH_MAX "Scanline Strength Max." 0.4 0.0 1.0 0.05 +#pragma parameter SCANLINE_BEAM_MIN "Scanline Beam Min." 1.0 0.25 5.0 0.05 +#pragma parameter SCANLINE_BEAM_MAX "Scanline Beam Max." 1.0 0.25 5.0 0.05 +#pragma parameter GEOM_CURVATURE "Geom Curvature" 0.0 0.0 0.1 0.01 +#pragma parameter GEOM_WARP "Geom Warp" 0.0 0.0 0.1 0.01 +#pragma parameter GEOM_CORNER_SIZE "Geom Corner Size" 0.0 0.0 0.1 0.01 +#pragma parameter GEOM_CORNER_SMOOTH "Geom Corner Smoothness" 150.0 50.0 1000.0 25.0 +#pragma parameter INTERLACING_TOGGLE "Interlacing Toggle" 1.0 0.0 1.0 1.0 +#pragma parameter HALATION "Halation" 0.03 0.0 1.0 0.01 +#pragma parameter DIFFUSION "Diffusion" 0.0 0.0 1.0 0.01 +#pragma parameter BRIGHTNESS "Brightness" 1.0 0.0 2.0 0.05 + +#define FIX(c) max(abs(c), 1e-5) +#define PI 3.141592653589 +#define TEX2D(c) texture(tex, c) + +layout(std140, set = 0, binding = 0) uniform UBO +{ + mat4 MVP; + vec4 OutputSize; + vec4 OriginalSize; + vec4 SourceSize; + uint FrameCount; +} global; + +#pragma stage vertex +layout(location = 0) in vec4 Position; +layout(location = 1) in vec2 TexCoord; +layout(location = 0) out vec2 vTexCoord; + +void main() +{ + gl_Position = global.MVP * Position; + vTexCoord = TexCoord; +} + +#pragma stage fragment +layout(location = 0) in vec2 vTexCoord; +layout(location = 0) out vec4 FragColor; +layout(set = 0, binding = 2) uniform sampler2D Source; +layout(set = 0, binding = 3) uniform sampler2D PassOutput0; + +float curve_distance(float x, float sharp) +{ + float x_step = step(0.5, x); + float curve = 0.5 - sqrt(0.25 - (x - x_step) * (x - x_step)) * sign(0.5 - x); + + return mix(x, curve, sharp); +} + +mat4x4 get_color_matrix(sampler2D tex, vec2 co, vec2 dx) +{ + return mat4x4(TEX2D(co - dx), TEX2D(co), TEX2D(co + dx), TEX2D(co + 2.0 * dx)); +} + +vec4 filter_lanczos(vec4 coeffs, mat4x4 color_matrix) +{ + vec4 col = coeffs * color_matrix; + vec4 sample_min = min(color_matrix[1], color_matrix[2]); + vec4 sample_max = max(color_matrix[1], color_matrix[2]); + + return clamp(col, sample_min, sample_max); +} + +float get_scanline_weight(float pos, float beam, float strength) +{ + float weight = 1.0 - pow(cos(pos * 2.0 * PI) * 0.5 + 0.5, beam); + + return weight * strength * 2.0 + (1.0 - strength);; +} + +vec2 curve_coordinate(vec2 co, float curvature) +{ + vec2 curve = vec2(curvature, curvature * 0.75); + vec2 co2 = co + co * curve - curve * 0.5; + vec2 co_weight = vec2(co.y, co.x) * 2.0 - 1.0; + + return mix(co, co2, co_weight * co_weight); +} + +float get_corner_weight(vec2 co, vec2 corner, float smoothness) +{ + co = min(co, vec2(1.0) - co) * vec2(1.0, 0.75); + co = (corner - min(co, corner)); + float corner_weight = clamp((corner.x - sqrt(dot(co, co))) * smoothness, 0.0, 1.0); + + return mix(1.0, corner_weight, ceil(corner.x)); +} + +void main() +{ + vec2 tex_size = global.SourceSize.xy; + vec2 midpoint = vec2(0.5, 0.5); + float scan_offset = 0.0; + + if (param.INTERLACING_TOGGLE > 0.0 && global.SourceSize.y >= 400) + { + tex_size.y *= 0.5; + + if (mod(float(global.FrameCount), 2.0) > 0.0) + { + midpoint.y = 0.75; + scan_offset = 0.5; + } + else + midpoint.y = 0.25; + } + + vec2 co = vTexCoord * tex_size * global.SourceSize.zw; + vec2 xy = curve_coordinate(co, param.GEOM_WARP); + xy *= global.SourceSize.xy / tex_size; + + vec2 dx = vec2(1.0 / tex_size.x, 0.0); + vec2 dy = vec2(0.0, 1.0 / tex_size.y); + vec2 pix_co = xy * tex_size - midpoint; + vec2 tex_co = (floor(pix_co) + midpoint) / tex_size; + vec2 dist = fract(pix_co); + + vec2 curve = vec2( + curve_distance(dist.x, param.SHARPNESS_H * param.SHARPNESS_H), + curve_distance(dist.y, param.SHARPNESS_V * param.SHARPNESS_V) + ); + + mat2x4 coeffs = mat2x4( + PI * vec4(1.0 + curve.x, curve.x, 1.0 - curve.x, 2.0 - curve.x), + PI * vec4(1.0 + curve.y, curve.y, 1.0 - curve.y, 2.0 - curve.y) + ); + + coeffs[0] = FIX(coeffs[0]); + coeffs[0] = 2.0 * sin(coeffs[0]) * sin(coeffs[0] * 0.5) / (coeffs[0] * coeffs[0]); + coeffs[0] /= dot(coeffs[0], vec4(1.0)); + + coeffs[1] = FIX(coeffs[1]); + coeffs[1] = 2.0 * sin(coeffs[1]) * sin(coeffs[1] * 0.5) / (coeffs[1] * coeffs[1]); + coeffs[1] /= dot(coeffs[1], vec4(1.0)); + + mat4x4 color_matrix = mat4x4( + filter_lanczos(coeffs[0], get_color_matrix(PassOutput0, tex_co - dy, dx)), + filter_lanczos(coeffs[0], get_color_matrix(PassOutput0, tex_co, dx)), + filter_lanczos(coeffs[0], get_color_matrix(PassOutput0, tex_co + dy, dx)), + filter_lanczos(coeffs[0], get_color_matrix(PassOutput0, tex_co + 2.0 * dy, dx)) + ); + + vec3 col = filter_lanczos(coeffs[1], color_matrix).rgb; + vec3 diff = texture(Source, xy).rgb; + + float rgb_max = max(col.r, max(col.g, col.b)); + float sample_offset = (global.SourceSize.y * global.OutputSize.w) * 0.5; + float scan_pos = xy.y * tex_size.y + scan_offset; + float scan_strength = mix(param.SCANLINE_STRENGTH_MAX, param.SCANLINE_STRENGTH_MIN, rgb_max); + float scan_beam = clamp(rgb_max * param.SCANLINE_BEAM_MAX, param.SCANLINE_BEAM_MIN, param.SCANLINE_BEAM_MAX); + + vec4 mask_config = vec4(0.0); + if (param.MASK_TYPE == 1) mask_config = vec4(2.0, 1.0, 1.0, 0.0); + else if (param.MASK_TYPE == 2) mask_config = vec4(3.0, 1.0, 1.0, 0.0); + else if (param.MASK_TYPE == 3) mask_config = vec4(2.1, 1.0, 1.0, 0.0); + else if (param.MASK_TYPE == 4) mask_config = vec4(3.1, 1.0, 1.0, 0.0); + else if (param.MASK_TYPE == 5) mask_config = vec4(2.0, 1.0, 1.0, 1.0); + else if (param.MASK_TYPE == 6) mask_config = vec4(3.0, 2.0, 1.0, 3.0); + else if (param.MASK_TYPE == 7) mask_config = vec4(3.0, 2.0, 2.0, 3.0); + + float mask_colors = floor(mask_config.x); + float mask_dot_width = mask_config.y; + float mask_dot_height = mask_config.z; + float mask_stagger = mask_config.w; + float mask_dither = fract(mask_config.x) * 10.0; + + vec2 mod_fac = floor( + vTexCoord * global.OutputSize.xy * global.SourceSize.xy / + (global.SourceSize.xy * vec2(param.MASK_SIZE, mask_dot_height * param.MASK_SIZE)) + ); + + int dot_no = int(mod((mod_fac.x + mod(mod_fac.y, 2.0) * mask_stagger) / mask_dot_width, mask_colors)); + int dither = int(mod(mod_fac.y + mod(floor(mod_fac.x / mask_colors), 2.0), 2.0)); + + float mask_strength = mix(param.MASK_STRENGTH_MAX, param.MASK_STRENGTH_MIN, rgb_max); + float mask_dark = 1.0 - mask_strength; + float mask_bright = 1.0 + mask_strength * 2.0; + + vec3 mask_weight = vec3(mask_dark, mask_dark, mask_bright); + if (dot_no == 0) mask_weight = mix(vec3(mask_bright), vec3(mask_bright, mask_dark, mask_dark), mask_colors - 2.0); + else if (dot_no == 1) mask_weight = mix(vec3(mask_dark), vec3(mask_dark, mask_bright, mask_dark), mask_colors - 2.0); + + float mask_mul = dither > 0 ? mask_dark : mask_bright; + mask_weight *= mix(1.0, mask_mul, mask_dither); + mask_weight = mix(vec3(1.0), mask_weight, clamp(param.MASK_TYPE, 0.0, 1.0)); + + vec3 col2 = (col * mask_weight) * param.BRIGHTNESS; + float scan_weight = get_scanline_weight(scan_pos - sample_offset, scan_beam, scan_strength); + col = clamp(col2 * scan_weight, 0.0, 1.0); + scan_weight = get_scanline_weight(scan_pos, scan_beam, scan_strength); + col += clamp(col2 * scan_weight, 0.0, 1.0); + scan_weight = get_scanline_weight(scan_pos + sample_offset, scan_beam, scan_strength); + col += clamp(col2 * scan_weight, 0.0, 1.0); + col *= 0.333333333; + + float corner_weight = get_corner_weight( + curve_coordinate(co, param.GEOM_CURVATURE), + vec2(param.GEOM_CORNER_SIZE), + param.GEOM_CORNER_SMOOTH + ); + + col *= vec3(corner_weight); + col += diff * mask_weight * param.HALATION * vec3(corner_weight); + col += diff * param.DIFFUSION * vec3(corner_weight); + col = pow(col, vec3(1.0 / param.GAMMA_OUTPUT)); + + FragColor = vec4(col, 1.0); +} diff --git a/test/nonfunctional/shaders/crt-easymode-halation/linearize.slang b/test/nonfunctional/shaders/crt-easymode-halation/linearize.slang new file mode 100644 index 0000000..d3320f4 --- /dev/null +++ b/test/nonfunctional/shaders/crt-easymode-halation/linearize.slang @@ -0,0 +1,37 @@ +#version 450 + +layout(push_constant) uniform Push +{ + float GAMMA_INPUT; +} param; + +#pragma parameter GAMMA_INPUT "Gamma Input" 2.4 0.1 5.0 0.01 + +layout(std140, set = 0, binding = 0) uniform UBO +{ + mat4 MVP; + vec4 OutputSize; + vec4 OriginalSize; + vec4 SourceSize; +} global; + +#pragma stage vertex +layout(location = 0) in vec4 Position; +layout(location = 1) in vec2 TexCoord; +layout(location = 0) out vec2 vTexCoord; + +void main() +{ + gl_Position = global.MVP * Position; + vTexCoord = TexCoord; +} + +#pragma stage fragment +layout(location = 0) in vec2 vTexCoord; +layout(location = 0) out vec4 FragColor; +layout(set = 0, binding = 2) uniform sampler2D Source; + +void main() +{ + FragColor = vec4(pow(texture(Source, vTexCoord), vec4(param.GAMMA_INPUT))); +} diff --git a/test/nonfunctional/shaders/crt-easymode-halation/threshold.slang b/test/nonfunctional/shaders/crt-easymode-halation/threshold.slang new file mode 100644 index 0000000..a41507b --- /dev/null +++ b/test/nonfunctional/shaders/crt-easymode-halation/threshold.slang @@ -0,0 +1,33 @@ +#version 450 + +layout(std140, set = 0, binding = 0) uniform UBO +{ + mat4 MVP; + vec4 OutputSize; + vec4 OriginalSize; + vec4 SourceSize; +} global; + +#pragma stage vertex +layout(location = 0) in vec4 Position; +layout(location = 1) in vec2 TexCoord; +layout(location = 0) out vec2 vTexCoord; + +void main() +{ + gl_Position = global.MVP * Position; + vTexCoord = TexCoord; +} + +#pragma stage fragment +layout(location = 0) in vec2 vTexCoord; +layout(location = 0) out vec4 FragColor; +layout(set = 0, binding = 2) uniform sampler2D Source; +layout(set = 0, binding = 3) uniform sampler2D PassOutput0; + +void main() +{ + vec3 diff = clamp(texture(Source, vTexCoord).rgb - texture(PassOutput0, vTexCoord).rgb, 0.0, 1.0); + + FragColor = vec4(diff, 1.0); +}