add gristleVHS shaders and preset

blurs/sunset_gaussian/sunset_horz.slang

@@ -0,0 +1,48 @@
+#version 450
+
+layout(push_constant) uniform Push
+{
+	vec4 SourceSize;
+	vec4 OriginalSize;
+	vec4 OutputSize;
+	uint FrameCount;
+} params;
+
+layout(std140, set = 0, binding = 0) uniform UBO
+{
+	mat4 MVP;
+} global;
+
+#pragma stage vertex
+layout(location = 0) in vec4 Position;
+layout(location = 1) in vec2 TexCoord;
+layout(location = 0) out vec2 vTexCoord;
+layout(location = 1) out vec2 blurCoordinates[5];
+
+void main()
+{
+   gl_Position = global.MVP * Position;
+   vTexCoord = TexCoord;
+	blurCoordinates[0] = vTexCoord.xy;
+	blurCoordinates[1] = vTexCoord.xy + params.OutputSize.zw * vec2(1.407333,0.0);
+	blurCoordinates[2] = vTexCoord.xy - params.OutputSize.zw * vec2(1.407333,0.0);
+	blurCoordinates[3] = vTexCoord.xy + params.OutputSize.zw * vec2(3.294215,0.0);
+	blurCoordinates[4] = vTexCoord.xy - params.OutputSize.zw * vec2(3.294215,0.0);
+}
+
+#pragma stage fragment
+layout(location = 0) in vec2 vTexCoord;
+layout(location = 1) in vec2 blurCoordinates[5];
+layout(location = 0) out vec4 FragColor;
+layout(set = 0, binding = 2) uniform sampler2D Source;
+
+void main()
+{
+	vec4 sum = vec4(0.0);
+	sum += texture(Source, blurCoordinates[0]) * 0.204164;
+	sum += texture(Source, blurCoordinates[1]) * 0.304005;
+	sum += texture(Source, blurCoordinates[2]) * 0.304005;
+	sum += texture(Source, blurCoordinates[3]) * 0.093913;
+	sum += texture(Source, blurCoordinates[4]) * 0.093913;
+	FragColor = sum;
+}

blurs/sunset_gaussian/sunset_vert.slang

@@ -0,0 +1,48 @@
+#version 450
+
+layout(push_constant) uniform Push
+{
+	vec4 SourceSize;
+	vec4 OriginalSize;
+	vec4 OutputSize;
+	uint FrameCount;
+} params;
+
+layout(std140, set = 0, binding = 0) uniform UBO
+{
+	mat4 MVP;
+} global;
+
+#pragma stage vertex
+layout(location = 0) in vec4 Position;
+layout(location = 1) in vec2 TexCoord;
+layout(location = 0) out vec2 vTexCoord;
+layout(location = 1) out vec2 blurCoordinates[5];
+
+void main()
+{
+   gl_Position = global.MVP * Position;
+   vTexCoord = TexCoord;
+	blurCoordinates[0] = vTexCoord.xy;
+	blurCoordinates[1] = vTexCoord.xy + params.OutputSize.zw * vec2(0.0,1.407333);
+	blurCoordinates[2] = vTexCoord.xy - params.OutputSize.zw * vec2(0.0,1.407333);
+	blurCoordinates[3] = vTexCoord.xy + params.OutputSize.zw * vec2(0.0,3.294215);
+	blurCoordinates[4] = vTexCoord.xy - params.OutputSize.zw * vec2(0.0,3.294215);
+}
+
+#pragma stage fragment
+layout(location = 0) in vec2 vTexCoord;
+layout(location = 1) in vec2 blurCoordinates[5];
+layout(location = 0) out vec4 FragColor;
+layout(set = 0, binding = 2) uniform sampler2D Source;
+
+void main()
+{
+	vec4 sum = vec4(0.0);
+	sum += texture(Source, blurCoordinates[0]) * 0.204164;
+	sum += texture(Source, blurCoordinates[1]) * 0.304005;
+	sum += texture(Source, blurCoordinates[2]) * 0.304005;
+	sum += texture(Source, blurCoordinates[3]) * 0.093913;
+	sum += texture(Source, blurCoordinates[4]) * 0.093913;
+	FragColor = sum;
+}

vhs/gristleVHS.slangp

@@ -0,0 +1,24 @@
+shaders = 4
+
+shader0 = shaders/gristleVHS/HorizontalSoften.slang
+scale_type0 = absolute
+scale_y0 = 480
+scale_x0 = 333
+frame_count_mod0 = 256
+filter_linear0 = true
+
+shader1 = ../blurs/sunset_gaussian/sunset_horz.slang
+scale_type1 = absolute
+scale_x1 = 80
+scale_y1 = 480
+filter_linear1 = true
+
+shader2 = shaders/gristleVHS/VHS.slang
+scale_type2 = absolute
+scale_y2 = 480
+scale_x2 = 333
+frame_count_mod2 = 256
+filter_linear2 = true
+
+shader3 = ../stock.slang
+filter_linear3 = true

vhs/shaders/gristleVHS/HorizontalSoften.slang

@@ -0,0 +1,42 @@
+#version 450
+
+layout(push_constant) uniform Push
+{
+	vec4 SourceSize;
+	vec4 OriginalSize;
+	vec4 OutputSize;
+	uint FrameCount;
+} params;
+
+layout(std140, set = 0, binding = 0) uniform UBO
+{
+	mat4 MVP;
+} 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;
+
+const float rndtable[256] = float[](
+    0.000, 0.031, 0.427, 0.863, 0.871, 0.945, 0.584, 0.420, 0.294, 0.973, 0.996, 0.549, 0.063, 0.259, 0.290, 0.082, 0.827, 0.184, 0.314, 0.949, 0.604, 0.106, 0.804, 0.502, 0.631, 0.349, 0.302, 0.141, 0.373, 0.431, 0.333, 0.188, 0.831, 0.549, 0.827, 0.976, 0.086, 0.310, 0.784, 0.196, 0.110, 0.737, 0.204, 0.549, 0.792, 0.471, 0.267, 0.569, 0.243, 0.275, 0.722, 0.745, 0.357, 0.773, 0.596, 0.878, 0.584, 0.408, 0.098, 0.698, 0.988, 0.714, 0.792, 0.714, 0.553, 0.773, 0.016, 0.318, 0.710, 0.949, 0.569, 0.165, 0.153, 0.890, 0.612, 0.776, 0.882, 0.757, 0.859, 0.365, 0.478, 0.686, 0.976, 0.000, 0.686, 0.561, 0.275, 0.937, 0.180, 0.965, 0.639, 0.208, 0.639, 0.427, 0.659, 0.529, 0.008, 0.922, 0.098, 0.361, 0.078, 0.569, 0.541, 0.302, 0.271, 0.651, 0.306, 0.690, 0.678, 0.831, 0.651, 0.443, 0.369, 0.631, 0.161, 0.196, 0.937, 0.192, 0.435, 0.643, 0.275, 0.235, 0.008, 0.145, 0.671, 0.294, 0.533, 0.612, 0.043, 0.220, 0.165, 0.573, 0.541, 0.898, 0.286, 0.573, 0.302, 0.239, 0.384, 0.769, 0.529, 0.416, 0.247, 0.773, 0.765, 0.337, 0.376, 0.796, 0.443, 0.396, 0.667, 0.969, 0.710, 0.443, 0.314, 0.980, 0.424, 0.027, 1.000, 0.929, 0.506, 0.886, 0.310, 0.420, 0.439, 0.651, 0.404, 0.945, 0.094, 0.875, 0.937, 0.471, 0.776, 0.227, 0.235, 0.322, 0.502, 0.012, 0.722, 0.259, 0.561, 0.878, 0.569, 0.878, 0.318, 0.808, 0.639, 0.176, 0.247, 0.353, 0.659, 0.447, 0.231, 0.129, 0.624, 0.373, 0.110, 0.545, 0.482, 0.384, 0.490, 0.769, 0.059, 0.275, 0.761, 0.992, 0.212, 0.055, 0.427, 0.886, 0.278, 0.067, 0.631, 0.365, 0.729, 0.341, 0.957, 0.541, 0.078, 0.204, 0.482, 0.984, 0.102, 0.141, 0.067, 0.180, 0.204, 0.906, 0.910, 0.298, 0.122, 0.867, 0.329, 0.145, 0.847, 0.647, 0.831, 0.416, 0.773, 0.949, 0.384, 0.169, 0.153, 0.686, 0.996, 0.569, 0.745, 0.329, 0.463, 0.871, 0.733, 0.533, 0.471, 0.639, 0.925, 0.976
+);
+
+void main()
+{
+	vec3 Image = texture(Source, vTexCoord + vec2(params.SourceSize.z * rndtable[params.FrameCount] * 0.4, 0.0)).xyz
+               + texture(Source, vTexCoord - vec2(params.SourceSize.z * rndtable[params.FrameCount] * 0.4, 0.0)).xyz;
+
+	FragColor = vec4(Image * 0.5, 1.0);
+}

vhs/shaders/gristleVHS/VHS.slang

@@ -0,0 +1,48 @@
+#version 450
+
+layout(push_constant) uniform Push
+{
+	vec4 SourceSize;
+	vec4 OriginalSize;
+	vec4 OutputSize;
+	uint FrameCount;
+} params;
+
+layout(std140, set = 0, binding = 0) uniform UBO
+{
+	mat4 MVP;
+} 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 Original;
+
+#define RGB_to_YIQ 	mat3x3( 0.299 , 0.595716 , 0.211456 ,	0.587    , -0.274453 , -0.522591 ,		0.114    , -0.321263 , 0.311135 )
+#define YIQ_to_RGB 	mat3x3( 1.0   , 1.0      , 1.0      ,	0.9563   , -0.2721   , -1.1070   ,		0.6210   , -0.6474   , 1.7046   )
+
+const float rndtable[256] = float[](
+    0.000, 0.031, 0.427, 0.863, 0.871, 0.945, 0.584, 0.420, 0.294, 0.973, 0.996, 0.549, 0.063, 0.259, 0.290, 0.082, 0.827, 0.184, 0.314, 0.949, 0.604, 0.106, 0.804, 0.502, 0.631, 0.349, 0.302, 0.141, 0.373, 0.431, 0.333, 0.188, 0.831, 0.549, 0.827, 0.976, 0.086, 0.310, 0.784, 0.196, 0.110, 0.737, 0.204, 0.549, 0.792, 0.471, 0.267, 0.569, 0.243, 0.275, 0.722, 0.745, 0.357, 0.773, 0.596, 0.878, 0.584, 0.408, 0.098, 0.698, 0.988, 0.714, 0.792, 0.714, 0.553, 0.773, 0.016, 0.318, 0.710, 0.949, 0.569, 0.165, 0.153, 0.890, 0.612, 0.776, 0.882, 0.757, 0.859, 0.365, 0.478, 0.686, 0.976, 0.000, 0.686, 0.561, 0.275, 0.937, 0.180, 0.965, 0.639, 0.208, 0.639, 0.427, 0.659, 0.529, 0.008, 0.922, 0.098, 0.361, 0.078, 0.569, 0.541, 0.302, 0.271, 0.651, 0.306, 0.690, 0.678, 0.831, 0.651, 0.443, 0.369, 0.631, 0.161, 0.196, 0.937, 0.192, 0.435, 0.643, 0.275, 0.235, 0.008, 0.145, 0.671, 0.294, 0.533, 0.612, 0.043, 0.220, 0.165, 0.573, 0.541, 0.898, 0.286, 0.573, 0.302, 0.239, 0.384, 0.769, 0.529, 0.416, 0.247, 0.773, 0.765, 0.337, 0.376, 0.796, 0.443, 0.396, 0.667, 0.969, 0.710, 0.443, 0.314, 0.980, 0.424, 0.027, 1.000, 0.929, 0.506, 0.886, 0.310, 0.420, 0.439, 0.651, 0.404, 0.945, 0.094, 0.875, 0.937, 0.471, 0.776, 0.227, 0.235, 0.322, 0.502, 0.012, 0.722, 0.259, 0.561, 0.878, 0.569, 0.878, 0.318, 0.808, 0.639, 0.176, 0.247, 0.353, 0.659, 0.447, 0.231, 0.129, 0.624, 0.373, 0.110, 0.545, 0.482, 0.384, 0.490, 0.769, 0.059, 0.275, 0.761, 0.992, 0.212, 0.055, 0.427, 0.886, 0.278, 0.067, 0.631, 0.365, 0.729, 0.341, 0.957, 0.541, 0.078, 0.204, 0.482, 0.984, 0.102, 0.141, 0.067, 0.180, 0.204, 0.906, 0.910, 0.298, 0.122, 0.867, 0.329, 0.145, 0.847, 0.647, 0.831, 0.416, 0.773, 0.949, 0.384, 0.169, 0.153, 0.686, 0.996, 0.569, 0.745, 0.329, 0.463, 0.871, 0.733, 0.533, 0.471, 0.639, 0.925, 0.976
+);
+
+void main()
+{
+	vec3 ChromaPass = texture(Source, vTexCoord - vec2(params.SourceSize.z*0.333,0.0)).xyz * RGB_to_YIQ;
+	vec3 LuminaPass = texture(Original, vTexCoord).xyz * RGB_to_YIQ;
+
+	vec3 MergedPass= vec3(LuminaPass.x,ChromaPass.yz) * YIQ_to_RGB;
+
+	FragColor = vec4(MergedPass, 1.0);
+}