add godot vhs_and_crt shader and slight tweak to shock

2024-06-02 11:28:21 -04:00 · 2022-10-12 22:33:22 -05:00 · 2022-10-12 22:33:22 -05:00 · c642c86348
parent 971dc41f2e
commit c642c86348
4 changed files with 698 additions and 1 deletions
--- a/anti-aliasing/shaders/shock.slang
+++ b/anti-aliasing/shaders/shock.slang
@ -3,6 +3,8 @@
 // based on Nvidia's GPU Gems article:
 // https://developer.nvidia.com/gpugems/GPUGems2/gpugems2_chapter27.html
 // slang shader by torridgristle and hunterk
+// This shader needs several iterations for a noticeable deblur effect
+// Nvidia's example uses 5 passes at 0.05 intensity, which seems good

 layout(push_constant) uniform Push
 {
@ -13,7 +15,7 @@ layout(push_constant) uniform Push
 	float shockMagnitude;
 } params;

-#pragma parameter shockMagnitude "Shock Magnitude" 0.0 0.0 4.0 0.1
+#pragma parameter shockMagnitude "Shock Magnitude" 0.05 0.0 4.0 0.01

 layout(std140, set = 0, binding = 0) uniform UBO
 {
--- a/vhs/shaders/vhs_and_crt_godot.slang
+++ b/vhs/shaders/vhs_and_crt_godot.slang
@ -0,0 +1,288 @@
+#version 450
+
+/*
+Shader from Godot Shaders - the free shader library.
+godotshaders.com/shader/VHS-and-CRT-monitor-effect
+
+This shader is under CC0 license. Feel free to use, improve and 
+change this shader according to your needs and consider sharing 
+the modified result to godotshaders.com.
+*/
+
+layout(push_constant) uniform Push
+{
+	vec4 SourceSize;
+	vec4 OriginalSize;
+	vec4 OutputSize;
+	uint FrameCount;
+	int FrameDirection;
+} params;
+
+layout(std140, set = 0, binding = 0) uniform UBO
+{
+	mat4 MVP;
+	float godot_scanlines_opacity, godot_scanlines_width, godot_grille_opacity, godot_pixelate, godot_roll, godot_roll_speed,
+		godot_roll_size, godot_roll_variation, godot_distort_intensity, godot_noise_opacity, godot_noise_speed, godot_static_noise_intensity,
+		godot_aberration, godot_brightness, godot_discolor, godot_warp_amount, godot_clip_warp, godot_vignette_intensity,
+		godot_vignette_opacity, godot_moire;
+} global;
+// useless for slang, but I'm leaving it in just to avoid changing the original code unnecessarily
+bool overlay = false;
+
+#pragma parameter godot_scanlines_opacity "Scanlines Opacity" 0.4 0.0 1.0 0.01
+float scanlines_opacity = global.godot_scanlines_opacity;
+#pragma parameter godot_scanlines_width "Scanlines Width" 0.25 0.0 0.5 0.05
+float scanlines_width = global.godot_scanlines_width;
+#pragma parameter godot_grille_opacity "Grille Opacity" 0.3 0.0 1.0 0.01
+float grille_opacity = global.godot_grille_opacity;
+
+// hook this one up to the actual image resolution
+vec2 resolution = params.SourceSize.xy; //vec2(640.0, 480.0); // Set the number of rows and columns the texture will be divided in. Scanlines and grille will make a square based on these values
+
+// another unnecessary one, but we'll leave it for now
+bool pixelate = false; // Fill each square ("pixel") with a sampled color, creating a pixel look and a more accurate representation of how a CRT monitor would work.
+
+#pragma parameter godot_roll "Roll Toggle" 1.0 0.0 1.0 1.0
+bool roll = bool(global.godot_roll);
+#pragma parameter godot_roll_speed "Roll Speed" 8.0 -20.0 20.0 0.1
+float roll_speed = global.godot_roll_speed / 100.; // Positive values are down, negative are up
+#pragma parameter godot_roll_size "Roll Size" 15.0 0.0 100.0 1.0
+float roll_size = global.godot_roll_size / 8.;
+#pragma parameter godot_roll_variation "Roll Variation" 1.8 0.1 5.0 0.1
+float roll_variation = global.godot_roll_variation; // This valie is not an exact science. You have to play around with the value to find a look you like. How this works is explained in the code below.
+#pragma parameter godot_distort_intensity "Distortion Intensity" 0.05 0.0 0.2 0.01
+float distort_intensity = global.godot_distort_intensity; // The distortion created by the rolling effect.
+
+#pragma parameter godot_noise_opacity "Noise Opacity" 0.4 0.0 1.0 0.01
+float noise_opacity = global.godot_noise_opacity;
+#pragma parameter godot_noise_speed "Noise Speed" 5.0 0.0 20.0 0.5
+float noise_speed = global.godot_noise_speed; // There is a movement in the noise pattern that can be hard to see first. This sets the speed of that movement.
+
+#pragma parameter godot_static_noise_intensity "Static Noise Intensity" 0.06 0.0 1.0 0.01
+float static_noise_intensity = global.godot_static_noise_intensity;
+
+#pragma parameter godot_aberration "Aberration" 0.03 -1.0 1.0 0.01
+float aberration = global.godot_aberration / 2.; // Chromatic aberration, a distortion on each color channel.
+#pragma parameter godot_brightness "Brightness" 1.4 0.0 2.0 0.01
+float brightness = global.godot_brightness; // When adding scanline gaps and grille the image can get very dark. Brightness tries to compensate for that.
+#pragma parameter godot_discolor "Discolor Toggle" 0.0 0.0 1.0 1.0
+bool discolor = bool(global.godot_discolor); // Add a discolor effect simulating a VHS
+
+#pragma parameter godot_warp_amount "Warp Amount" 1.0 0.0 5.0 0.1
+float warp_amount = global.godot_warp_amount; // Warp the texture edges simulating the curved glass of a CRT monitor or old TV.
+#pragma parameter godot_clip_warp "Clip Warp Toggle" 0.0 0.0 1.0 1.0
+bool clip_warp = bool(global.godot_clip_warp);
+
+#pragma parameter godot_vignette_intensity "Vignette Intensity" 0.4 0.0 1.0 0.01
+float vignette_intensity = global.godot_vignette_intensity; // Size of the vignette, how far towards the middle it should go.
+#pragma parameter godot_vignette_opacity "Vignette Opacity" 0.5 0.0 1.0 0.01
+float vignette_opacity = global.godot_vignette_opacity;
+
+#pragma parameter godot_moire "Warp Scanlines/Mask (Moire!)" 0.0 0.0 1.0 1.0
+bool moire = bool(global.godot_moire);
+
+#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;
+
+// compatibility macros
+#define COLOR FragColor
+#define SCREEN_TEXTURE Source
+#define TIME float(params.FrameCount)
+#define SCREEN_UV (vTexCoord.xy * params.OutputSize.xy)
+#define UV vTexCoord.xy
+
+// Used by the noise functin to generate a pseudo random value between 0.0 and 1.0
+vec2 random(vec2 uv){
+    uv = vec2( dot(uv, vec2(127.1,311.7) ),
+               dot(uv, vec2(269.5,183.3) ) );
+    return -1.0 + 2.0 * fract(sin(uv) * 43758.5453123);
+}
+
+// Generate a Perlin noise used by the distortion effects
+float noise(vec2 uv) {
+    vec2 uv_index = floor(uv);
+    vec2 uv_fract = fract(uv);
+
+    vec2 blur = smoothstep(0.0, 1.0, uv_fract);
+
+    return mix( mix( dot( random(uv_index + vec2(0.0,0.0) ), uv_fract - vec2(0.0,0.0) ),
+                     dot( random(uv_index + vec2(1.0,0.0) ), uv_fract - vec2(1.0,0.0) ), blur.x),
+                mix( dot( random(uv_index + vec2(0.0,1.0) ), uv_fract - vec2(0.0,1.0) ),
+                     dot( random(uv_index + vec2(1.0,1.0) ), uv_fract - vec2(1.0,1.0) ), blur.x), blur.y) * 0.5 + 0.5;
+}
+
+// Takes in the UV and warps the edges, creating the spherized effect
+vec2 warp(vec2 uv){
+	vec2 delta = uv - 0.5;
+	float delta2 = dot(delta.xy, delta.xy);
+	float delta4 = delta2 * delta2;
+	float delta_offset = delta4 * warp_amount;
+	
+	return uv + delta * delta_offset;
+}
+
+// Adds a black border to hide stretched pixel created by the warp effect
+float border (vec2 uv){
+	float radius = min(warp_amount, 0.08);
+	radius = max(min(min(abs(radius * 2.0), abs(1.0)), abs(1.0)), 1e-5);
+	vec2 abs_uv = abs(uv * 2.0 - 1.0) - vec2(1.0, 1.0) + radius;
+	float dist = length(max(vec2(0.0), abs_uv)) / radius;
+	float square = smoothstep(0.96, 1.0, dist);
+	return clamp(1.0 - square, 0.0, 1.0);
+}
+
+// Adds a vignette shadow to the edges of the image
+float vignette(vec2 uv){
+	uv *= 1.0 - uv.xy;
+	float vignette = uv.x * uv.y * 15.0;
+	return pow(vignette, vignette_intensity * vignette_opacity);
+}
+
+void main()
+{
+	vec2 uv = overlay ? warp(SCREEN_UV) : warp(UV); // Warp the uv. uv will be used in most cases instead of UV to keep the warping
+	vec2 text_uv = uv;
+	vec2 roll_uv = vec2(0.0);
+	float time = roll ? TIME : 0.0;
+	
+
+	// Pixelate the texture based on the given resolution.
+	if (pixelate)
+	{
+		text_uv = ceil(uv * resolution) / resolution;
+	}
+	
+	// Create the rolling effect. We need roll_line a bit later to make the noise effect.
+	// That is why this runs if roll is true OR noise_opacity is over 0.
+	float roll_line = 0.0;
+	if ((params.FrameDirection < 0.0 && roll))
+	{
+		// Create the areas/lines where the texture will be distorted.
+		roll_line = smoothstep(0.3, 0.5, sin(uv.y * (roll_size*global.godot_roll * 10.) - (time * roll_speed / 50.) ) );
+		// Create more lines of a different size and apply to the first set of lines. This creates a bit of variation.
+		roll_line *= roll_line * smoothstep(0.3, 0.4, sin(uv.y * (roll_size*global.godot_roll) * roll_variation - (0.1*time * roll_speed / 12. * roll_variation) ) );
+		// Distort the UV where where the lines are
+		roll_uv = vec2(( roll_line * distort_intensity * (1.-UV.x)), 0.0);
+	}
+	
+	vec4 text;
+	if (roll)
+	{
+		// If roll is true distort the texture with roll_uv. The texture is split up into RGB to 
+		// make some chromatic aberration. We apply the aberration to the red and green channels accorging to the aberration parameter
+		// and intensify it a bit in the roll distortion.
+		text.r = texture(SCREEN_TEXTURE, text_uv + roll_uv * 0.8 + vec2(aberration, 0.0) * .1).r;
+		text.g = texture(SCREEN_TEXTURE, text_uv + roll_uv * 1.2 - vec2(aberration, 0.0) * .1 ).g;
+		text.b = texture(SCREEN_TEXTURE, text_uv + roll_uv).b;
+		text.a = 1.0;
+	}
+	else
+	{
+		// If roll is false only apply the aberration without any distorion. The aberration values are very small so the .1 is only 
+		// to make the slider in the Inspector less sensitive.
+		text.r = texture(SCREEN_TEXTURE, text_uv + vec2(aberration, 0.0) * .1).r;
+		text.g = texture(SCREEN_TEXTURE, text_uv - vec2(aberration, 0.0) * .1).g;
+		text.b = texture(SCREEN_TEXTURE, text_uv).b;
+		text.a = 1.0;
+	}
+	
+	float r = text.r;
+	float g = text.g;
+	float b = text.b;
+	
+	// don't warp the scanlines and mask unless you want moire
+	uv = (moire) ? warp(UV) : UV;
+	
+	// CRT monitors don't have pixels but groups of red, green and blue dots or lines, called grille. We isolate the texture's color channels 
+	// and divide it up in 3 offsetted lines to show the red, green and blue colors next to each other, with a small black gap between.
+	if (grille_opacity > 0.0){
+		
+		float g_r = smoothstep(0.85, 0.95, abs(sin(uv.x * (resolution.x * 3.14159265))));
+		r = mix(r, r * g_r, grille_opacity);
+		
+		float g_g = smoothstep(0.85, 0.95, abs(sin(1.05 + uv.x * (resolution.x * 3.14159265))));
+		g = mix(g, g * g_g, grille_opacity);
+		
+		float b_b = smoothstep(0.85, 0.95, abs(sin(2.1 + uv.x * (resolution.x * 3.14159265))));
+		b = mix(b, b * b_b, grille_opacity);
+		
+	}
+
+	// Apply the grille to the texture's color channels and apply Brightness. Since the grille and the scanlines (below) make the image very dark you
+	// can compensate by increasing the brightness.
+	text.r = clamp(r * brightness, 0.0, 1.0);
+	text.g = clamp(g * brightness, 0.0, 1.0);
+	text.b = clamp(b * brightness, 0.0, 1.0);
+	
+	// Scanlines are the horizontal lines that make up the image on a CRT monitor. 
+	// Here we are actual setting the black gap between each line, which I guess is not the right definition of the word, but you get the idea  
+	float scanlines = 0.5;
+	if (scanlines_opacity > 0.0)
+	{
+		// Same technique as above, create lines with sine and applying it to the texture. Smoothstep to allow setting the line size.
+		scanlines = smoothstep(scanlines_width, scanlines_width + 0.5, abs(sin(uv.y * (resolution.y * 3.14159265))));
+		text.rgb = mix(text.rgb, text.rgb * vec3(scanlines), scanlines_opacity);
+	}
+	uv = warp(UV);	
+	// Apply the banded noise.
+	if (roll || params.FrameDirection < 0.0)
+	{
+		// Generate a noise pattern that is very stretched horizontally, and animate it with noise_speed
+		float noise = smoothstep(0.4, 0.5, noise(uv * vec2(2.0, 200.0) + vec2(10.0, (TIME * (noise_speed))) ) );
+		
+		// We use roll_line (set above) to define how big the noise should be vertically (multiplying cuts off all black parts).
+		// We also add in some basic noise with random() to break up the noise pattern above. The noise is sized according to 
+		// the resolution value set in the inspector. If you don't like this look you can 
+		// change "ceil(uv * resolution) / resolution" to only "uv" to make it less pixelated. Or multiply resolution with som value
+		// greater than 1.0 to make them smaller.
+		roll_line *= noise * scanlines * clamp(random((ceil(uv * resolution) / resolution) + vec2(TIME * 0.8, 0.0)).x + 0.8, 0.0, 1.0);
+		// Add it to the texture based on noise_opacity
+		text.rgb = clamp(mix(text.rgb, text.rgb + roll_line, noise_opacity), vec3(0.0), vec3(1.0));
+	}
+	
+	// Apply static noise by generating it over the whole screen in the same way as above
+	if (static_noise_intensity > 0.0)
+	{
+		text.rgb += clamp(random((ceil(uv * resolution) / resolution) + fract(TIME / 100)).x, 0.0, 1.0) * static_noise_intensity;
+	}
+	
+	// Apply a black border to hide imperfections caused by the warping.
+	// Also apply the vignette
+	text.rgb *= border(uv);
+	text.rgb *= vignette(uv);
+	// Hides the black border and make that area transparent. Good if you want to add the the texture on top an image of a TV or monitor.
+	if (clip_warp)
+	{
+		text.a = border(uv);
+	}
+	
+	// Apply discoloration to get a VHS look (lower saturation and higher contrast)
+	// You can play with the values below or expose them in the Inspector.
+	float saturation = 0.5;
+	float contrast = 1.2;
+	if (discolor)
+	{
+		// Saturation
+		vec3 greyscale = vec3(text.r + text.g + text.b) / 3.;
+		text.rgb = mix(text.rgb, greyscale, saturation);
+		
+		// Contrast
+		float midpoint = pow(0.5, 2.2);
+		text.rgb = (text.rgb - vec3(midpoint)) * contrast + midpoint;
+	}
+	
+	COLOR = text;
+}
--- a/vhs/shaders/vhs_font.slang
+++ b/vhs/shaders/vhs_font.slang
@ -0,0 +1,397 @@
+#version 450
+
+// Text with VHS font
+// by Astherix
+// https://www.shadertoy.com/view/NdGyDK
+// adapted for slang by hunterk
+
+layout(push_constant) uniform Push
+{
+	vec4 SourceSize;
+	vec4 OriginalSize;
+	vec4 OutputSize;
+	uint FrameCount;
+	int FrameDirection;
+	float godot_warp_amount;
+} params;
+
+#pragma parameter godot_warp_amount "Warp Amount" 1.0 0.0 5.0 0.1
+float warp_amount = params.godot_warp_amount; // Warp the texture edges simulating the curved glass of a CRT monitor or old TV.
+
+layout(std140, set = 0, binding = 0) uniform UBO
+{
+	mat4 MVP;
+} global;
+
+// shadertoy compatibility macros
+#define iChannel0 Source
+#define iResolution params.OutputSize.xy
+#define fragCoord (vTexCoord.xy * params.OutputSize.xy)
+#define fragColor FragColor
+#define iFrame params.FrameCount
+#define iTime (params.FrameCount / 60.)
+
+// Font data gotten from STV5730's ROM, modified for size
+
+/* stv5730.bin (6/18/2022 2:37:22 PM)
+   StartOffset(h): 00000000, EndOffset(h): 00000A1F, Length(h): 00000A20 */
+
+int[] font = int[](
+	0x00000000, 0x1F803FC0, 0x70E06060,
+	0x60606060, 0x60606060, 0x60606060,
+	0x606070E0, 0x3FC01F80, 0x00000000,
+	0x00000000, 0x06000600, 0x1E001E00,
+	0x06000600, 0x06000600, 0x06000600,
+	0x06000600, 0x1F801F80, 0x00000000,
+	0x00000000, 0x1F803FC0, 0x70E06060,
+	0x006000E0, 0x1FC03F80, 0x70006000,
+	0x60006000, 0x7FE07FE0, 0x00000000,
+	0x00000000, 0x1F803FC0, 0x70E06060,
+	0x006000E0, 0x07C007C0, 0x00E00060,
+	0x606070E0, 0x3FC01F80, 0x00000000,
+	0x00000000, 0x07800F80, 0x1D803980,
+	0x71806180, 0x61806180, 0x7FE07FE0,
+	0x01800180, 0x01800180, 0x00000000,
+	0x00000000, 0x7FE07FE0, 0x60006000,
+	0x7F807FC0, 0x00E00060, 0x00600060,
+	0x606070E0, 0x3FC01F00, 0x00000000,
+	0x00000000, 0x1F803FC0, 0x70E06060,
+	0x60006000, 0x7F807FC0, 0x60E06060,
+	0x606070C0, 0x3FC01F80, 0x00000000,
+	0x00000000, 0x7FE07FE0, 0x006000C0,
+	0x01800300, 0x06000600, 0x06000600,
+	0x06000600, 0x06000600, 0x00000000,
+	0x00000000, 0x1F803FC0, 0x70E06060,
+	0x606070E0, 0x3FC03FC0, 0x70E06060,
+	0x606070E0, 0x3FC01F80, 0x00000000,
+	0x00000000, 0x1F803FC0, 0x70E06060,
+	0x60607060, 0x3FE01FE0, 0x00600060,
+	0x606070E0, 0x3FC01F80, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x3FC03FC0, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x06000F00, 0x1F8039C0,
+	0x70E06060, 0x60606060, 0x7FE07FE0,
+	0x60606060, 0x60606060, 0x00000000,
+	0x00000000, 0x7F807FC0, 0x60E06060,
+	0x606060E0, 0x7FC07FC0, 0x60E06060,
+	0x606060E0, 0x7FC07F80, 0x00000000,
+	0x00000000, 0x1F803FC0, 0x70E06060,
+	0x60006000, 0x60006000, 0x60006000,
+	0x606070E0, 0x3FC01F80, 0x00000000,
+	0x00000000, 0x7F807FC0, 0x60E06060,
+	0x60606060, 0x60606060, 0x60606060,
+	0x606060E0, 0x7FC07F80, 0x00000000,
+	0x00000000, 0x7FE07FE0, 0x60006000,
+	0x60006000, 0x7F807F80, 0x60006000,
+	0x60006000, 0x7FE07FE0, 0x00000000,
+	0x00000000, 0x7FE07FE0, 0x60006000,
+	0x60006000, 0x7F807F80, 0x60006000,
+	0x60006000, 0x60006000, 0x00000000,
+	0x00000000, 0x1F803FC0, 0x70E06060,
+	0x60006000, 0x63E063E0, 0x60606060,
+	0x606070E0, 0x3FC01F80, 0x00000000,
+	0x00000000, 0x60606060, 0x60606060,
+	0x60606060, 0x7FE07FE0, 0x60606060,
+	0x60606060, 0x60606060, 0x00000000,
+	0x00000000, 0x1F801F80, 0x06000600,
+	0x06000600, 0x06000600, 0x06000600,
+	0x06000600, 0x1F801F80, 0x00000000,
+	0x00000000, 0x07E007E0, 0x01800180,
+	0x01800180, 0x01800180, 0x01800180,
+	0x61807380, 0x3F001E00, 0x00000000,
+	0x00000000, 0x606060E0, 0x61C06380,
+	0x67007E00, 0x7C007C00, 0x6E006700,
+	0x638061C0, 0x60E06060, 0x00000000,
+	0x00000000, 0x60006000, 0x60006000,
+	0x60006000, 0x60006000, 0x60006000,
+	0x60006000, 0x7FE07FE0, 0x00000000,
+	0x00000000, 0x60606060, 0x70E079E0,
+	0x7FE06F60, 0x66606060, 0x60606060,
+	0x60606060, 0x60606060, 0x00000000,
+	0x00000000, 0x60606060, 0x60607060,
+	0x78607C60, 0x6E606760, 0x63E061E0,
+	0x60E06060, 0x60606060, 0x00000000,
+	0x00000000, 0x1F803FC0, 0x70E06060,
+	0x60606060, 0x60606060, 0x60606060,
+	0x606070E0, 0x3FC01F80, 0x00000000,
+	0x00000000, 0x7F807FC0, 0x60E06060,
+	0x606060E0, 0x7FC07F80, 0x60006000,
+	0x60006000, 0x60006000, 0x00000000,
+	0x00000000, 0x1F803FC0, 0x70E06060,
+	0x60606060, 0x60606060, 0x66606760,
+	0x63E071C0, 0x3FE01E60, 0x00000000,
+	0x00000000, 0x7F807FC0, 0x60E06060,
+	0x606060E0, 0x7FC07F80, 0x6E006700,
+	0x638061C0, 0x60E06060, 0x00000000,
+	0x00000000, 0x1FE03FE0, 0x70006000,
+	0x60007000, 0x3F801FC0, 0x00E00060,
+	0x006000E0, 0x7FC07F80, 0x00000000,
+	0x00000000, 0x7FE07FE0, 0x06000600,
+	0x06000600, 0x06000600, 0x06000600,
+	0x06000600, 0x06000600, 0x00000000,
+	0x00000000, 0x60606060, 0x60606060,
+	0x60606060, 0x60606060, 0x60606060,
+	0x606070E0, 0x3FC01F80, 0x00000000,
+	0x00000000, 0x60606060, 0x60606060,
+	0x60606060, 0x60606060, 0x606070E0,
+	0x39C01F80, 0x0F000600, 0x00000000,
+	0x00000000, 0x60606060, 0x60606060,
+	0x60606060, 0x60606660, 0x6F607FE0,
+	0x79E070E0, 0x60606060, 0x00000000,
+	0x00000000, 0x60606060, 0x606070E0,
+	0x39C01F80, 0x0F000F00, 0x1F8039C0,
+	0x70E06060, 0x60606060, 0x00000000,
+	0x00000000, 0x60606060, 0x60606060,
+	0x70E039C0, 0x1F800F00, 0x06000600,
+	0x06000600, 0x06000600, 0x00000000,
+	0x00000000, 0x7FE07FE0, 0x006000E0,
+	0x01C00380, 0x07000E00, 0x1C003800,
+	0x70006000, 0x7FE07FE0, 0x00000000,
+	0x00000000, 0x00000000, 0x06000600,
+	0x00000000, 0x00000000, 0x00000000,
+	0x06000600, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x60006000, 0x00000000,
+	0x00000000, 0x00000000, 0x006000E0,
+	0x01C00380, 0x07000E00, 0x1C003800,
+	0x70006000, 0x00000000, 0x00000000,
+	0x00000000, 0x06000600, 0x02000400,
+	0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000,
+	0x1F003F80, 0x31C000C0, 0x1FC03FC0,
+	0x70C060C0, 0x7FE03F60, 0x00000000,
+	0x00000000, 0x60006000, 0x60006000,
+	0x6F807FC0, 0x70E06060, 0x60606060,
+	0x606060E0, 0x7FC07F80, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000,
+	0x1F803FC0, 0x70E06000, 0x60006000,
+	0x600070E0, 0x3FC01F80, 0x00000000,
+	0x00000000, 0x00C000C0, 0x00C000C0,
+	0x1FC03FC0, 0x30C060C0, 0x60C060C0,
+	0x60C030C0, 0x3FE01FE0, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000,
+	0x1F803FC0, 0x70E06060, 0x7FE07FE0,
+	0x600070E0, 0x3FC01F80, 0x00000000,
+	0x00000000, 0x07800FC0, 0x0CC00C00,
+	0x0C003F00, 0x3F000C00, 0x0C000C00,
+	0x0C000C00, 0x0C000C00, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000,
+	0x1F603FE0, 0x70E06060, 0x70E03FE0,
+	0x1F600060, 0x70E03FC0, 0x1F800000,
+	0x00000000, 0x60006000, 0x60006000,
+	0x67806FC0, 0x78E07060, 0x60606060,
+	0x60606060, 0x60606060, 0x00000000,
+	0x00000000, 0x06000600, 0x00000000,
+	0x0E000600, 0x06000600, 0x06000600,
+	0x06000600, 0x06001F80, 0x00000000,
+	0x00000000, 0x01800180, 0x00000000,
+	0x03800180, 0x01800180, 0x01800180,
+	0x01803180, 0x3B801F00, 0x0E000000,
+	0x00000000, 0x60006000, 0x60006000,
+	0x606060E0, 0x61C06380, 0x67006F00,
+	0x7F8079C0, 0x60E06060, 0x00000000,
+	0x00000000, 0x0E000600, 0x06000600,
+	0x06000600, 0x06000600, 0x06000600,
+	0x06000680, 0x07800300, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000,
+	0x6DC076C0, 0x66606660, 0x66606660,
+	0x66606660, 0x66606660, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000,
+	0x6F807FC0, 0x70E07060, 0x60606060,
+	0x60606060, 0x60606060, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000,
+	0x1F803FC0, 0x70E06060, 0x60606060,
+	0x606070E0, 0x3FC01F80, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000,
+	0x6F807FC0, 0x70E06060, 0x606070E0,
+	0x7FC06F80, 0x60006000, 0x60000000,
+	0x00000000, 0x00000000, 0x00000000,
+	0x1F603FE0, 0x70E06060, 0x606070E0,
+	0x3FE01F60, 0x00600060, 0x00600000,
+	0x00000000, 0x00000000, 0x00000000,
+	0x6F807FC0, 0x78E07060, 0x60006000,
+	0x60006000, 0x60006000, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000,
+	0x1F803FC0, 0x70E07000, 0x3F803FC0,
+	0x00E070E0, 0x3FC01F80, 0x00000000,
+	0x00000000, 0x06000600, 0x06000600,
+	0x1F801F80, 0x06000600, 0x06000600,
+	0x06000600, 0x07800380, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000,
+	0x60606060, 0x60606060, 0x60606060,
+	0x606070E0, 0x3FE01F60, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000,
+	0x60606060, 0x60606060, 0x606070E0,
+	0x39C01F80, 0x0F000600, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000,
+	0x60606060, 0x66606660, 0x66606660,
+	0x6F607FE0, 0x39C01080, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000,
+	0x606070E0, 0x39C01F80, 0x0F000F00,
+	0x1F8039C0, 0x70E06060, 0x00000000,
+	0x00000000, 0x00000000, 0x00000000,
+	0x60606060, 0x60606060, 0x70603FE0,
+	0x1FE00060, 0x00E01FC0, 0x1F800000,
+	0x00000000, 0x00000000, 0x00000000,
+	0x7FE07FE0, 0x01C00380, 0x07000E00,
+	0x1C003800, 0x7FE07FE0, 0x00000000,
+	0x00000000, 0x00001000, 0x18001C00,
+	0x1E001F00, 0x1F801FC0, 0x1F801F00,
+	0x1E001C00, 0x18001000, 0x00000000,
+	0x00000000, 0x00008400, 0xC600E700,
+	0xF780FFC0, 0xFFE0FFF0, 0xFFE0FFC0,
+	0xF780E700, 0xC6008400, 0x00000000,
+	0x00000000, 0x00000210, 0x06300E70,
+	0x1EF03FF0, 0x7FF0FFF0, 0x7FF03FF0,
+	0x1EF00E70, 0x06300210, 0x00000000,
+	0x00000000, 0x00007FE0, 0x7FE07FE0,
+	0x7FE07FE0, 0x7FE07FE0, 0x7FE07FE0,
+	0x7FE07FE0, 0x7FE07FE0, 0x00000000
+);
+
+#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 flipcoord;
+
+void main()
+{
+   vec4 pos = vec4(Position.x, 1.0 - Position.y, Position.z, Position.w);
+   gl_Position = global.MVP * pos;
+   vTexCoord = TexCoord;
+   flipcoord = vec2(vTexCoord.x, 1.0 - vTexCoord.y);
+}
+
+#pragma stage fragment
+layout(location = 0) in vec2 vTexCoord;
+layout(location = 1) in vec2 flipcoord;
+layout(location = 0) out vec4 FragColor;
+layout(set = 0, binding = 2) uniform sampler2D Source;
+
+// Character values are on the bottom of this document
+// https://github.com/codeman38/vcr-fonts/blob/master/sources/stv5730/STV5730a.pdf
+
+int get_char_pixel(int x, int y, int c, bool inv) {
+    int base = ((x >> 3) + (y * 2) + (c * 0x24)) >> 2;
+    
+    int offset = ((y & 0x1) != 0) ? 0 : 16; 
+    int value = (font[base] >> offset) & 0xffff;
+    
+    if (inv) {
+        return (value & (1 << (0xf - (x & 0xf)))) == 0 ? 1 : 2;
+    } else {
+        return (value & (1 << (0xf - (x & 0xf)))) != 0 ? 1 : 0;
+    }
+}
+
+int print_char(vec2 p, vec2 g, int c, bool inv, bool border) {
+    bool box = (p.x >= (g.x * 12.0)) && (p.x < ((g.x + 1.0) * 12.0)) &&
+               (p.y >= (g.y * 18.0)) && (p.y < ((g.y + 1.0) * 18.0));
+    
+    if (!box) return 0;
+    
+    if (border && !inv) {
+        int pixel = get_char_pixel(int(p.x) % 12, int(p.y) % 18, c, inv);
+        
+        if (pixel != 0) return 1;
+        
+        for (int y = -1; y <= 1; y++) {
+            for (int x = -1; x <= 1; x++) {
+                pixel = get_char_pixel((int(p.x) + x) % 12, (int(p.y) + y) % 18, c, false);
+           
+                if (pixel != 0) return 2;
+            }
+        }
+    }
+
+    return get_char_pixel(int(p.x) % 12, int(p.y) % 18, c, inv);
+}
+
+int characters[2];
+
+void number_to_characters(float n) {
+    int high = int(floor(n / 10.0)),
+        low = int(n) - (high * 10);
+    
+    characters[0] = high;
+    characters[1] = low;
+}
+
+// I don't love this, but we have to match the CRT pass' curvature at least somewhat
+// Takes in the UV and warps the edges, creating the spherized effect
+vec2 warp(vec2 uv){
+	vec2 delta = uv - 0.5;
+	float delta2 = dot(delta.xy, delta.xy);
+	float delta4 = delta2 * delta2;
+	float delta_offset = delta4 * warp_amount;
+	
+	return uv + delta * delta_offset;
+}
+
+void main()
+{
+	vec2 uv = warp(flipcoord);
+    vec2 p = uv.xy * vec2(300.,225.);//vec2(fragCoord.x, iResolution.y - fragCoord.y) / 2.;
+    
+    vec4 t = texture(iChannel0, flipcoord);
+	float timer = (params.FrameDirection > 0.5) ? float(params.FrameCount) : 0.0;
+    
+    int acc = 0;
+if(params.FrameDirection < -0.5){ // when rewind is detected, show the REWIND message
+		// Rewind
+		acc += int(print_char(p, vec2(2.0, 1.0) , 0x1d, false, true)); // R
+		acc += int(print_char(p, vec2(3.0, 1.0) , 0x10, false, true)); // E
+		acc += int(print_char(p, vec2(4.0, 1.0) , 0x22, false, true)); // W
+		acc += int(print_char(p, vec2(5.0, 1.0) , 0x14, false, true)); // I
+		acc += int(print_char(p, vec2(6.0, 1.0) , 0x19, false, true)); // N
+		acc += int(print_char(p, vec2(7.0, 1.0) , 0x0f, false, true)); // D
+		acc += int(print_char(p, vec2(9.0, 1.0) , 0x46, false, true)); // <<
+	}
+	// blink the PLAY message for 1000 frames
+	else if((mod(timer, 100.0) < 50.0) && (timer != 0.0) && (timer < 1000.0))
+	{  
+		// Play
+		acc += int(print_char(p, vec2(2.0, 1.0) , 0x1b, false, true)); // P
+		acc += int(print_char(p, vec2(3.0, 1.0) , 0x17, false, true)); // L
+		acc += int(print_char(p, vec2(4.0, 1.0) , 0x0c, false, true)); // A
+		acc += int(print_char(p, vec2(5.0, 1.0) , 0x24, false, true)); // Y
+		acc += int(print_char(p, vec2(7.0, 1.0) , 0x44, false, true)); // >
+	}
+
+    float s = mod(floor(iTime),        60.0);
+    float m = mod(floor(iTime/60.0),   60.0);
+    float h = mod(floor(iTime/3600.0), 24.0);
+
+    // Timecode
+    acc += int(print_char(p, vec2(2.0, 10.0) , 0x1e, false, true)); // S
+    acc += int(print_char(p, vec2(3.0, 10.0) , 0x1b, false, true)); // P
+
+    number_to_characters(h);
+    acc += int(print_char(p, vec2(5.0, 10.0) , characters[0], false, true)); // 0
+    acc += int(print_char(p, vec2(6.0, 10.0) , characters[1], false, true)); // 0
+    acc += int(print_char(p, vec2(7.0, 10.0) , 0x26, false, true)); // :
+
+    number_to_characters(m);
+    acc += int(print_char(p, vec2(8.0, 10.0) , characters[0], false, true)); // 0
+    acc += int(print_char(p, vec2(9.0, 10.0) , characters[1], false, true)); // 0
+    acc += int(print_char(p, vec2(10.0, 10.0), 0x26, false, true)); // :
+
+    number_to_characters(s);
+    acc += int(print_char(p, vec2(11.0, 10.0), characters[0], false, true)); // 0
+    acc += int(print_char(p, vec2(12.0, 10.0), characters[1], false, true)); // 0
+    
+    // This pass lets iChannel0 pass through
+    if (acc == 0) fragColor = t;
+    if (acc == 1) fragColor = vec4(1.0);
+    if (acc == 2) fragColor = vec4(0.0, 0.0, 0.0, 1.0);
+	
+	// only show the OSD when the content first launches or during rewind
+	fragColor = ((timer < 1000.0) || (params.FrameDirection < -0.5)) ? fragColor : t;
+}
--- a/vhs/vhs_and_crt_godot.slangp
+++ b/vhs/vhs_and_crt_godot.slangp
@ -0,0 +1,10 @@
+shaders = 2
+
+shader0 = shaders/vhs_and_crt_godot.slang
+scale_type0 = viewport
+scale0 = 1.0
+filter_linear0 = true
+
+shader1 = shaders/vhs_font.slang
+scale_type1 = viewport
+scale1 = 1.0