created 8-bit profile

README.md

@@ -5,6 +5,7 @@ aimed at providing a variety of effects in the vein of its parent project.
 
 ## Features
 
+- Affine Texture Warping
 - Chromatic Aberration
 - Color depth reduction
 - Depth of Field
@@ -12,13 +13,20 @@ aimed at providing a variety of effects in the vein of its parent project.
 - Downscaling
 - Horizontal Blur
 - Interlacing
+- Monochrome Mode & Palettes
 - Scanlines
 - Screen-Space Vertex Warping
-- Affine Texture Warping
 - World Curvature
 
+## Screenshots
+
+![2024-04-18_17 04 13](https://github.com/sleeplessval/aeon/assets/73970075/d2022abe-f39a-4e3d-a0d7-5b6d62147d9f)
+![2024-04-11_12 58 13](https://github.com/sleeplessval/aeon/assets/73970075/7ced7d92-b032-4b5c-b314-d6fce4b0ed41)
+![2024-04-17_11 09 10](https://github.com/sleeplessval/aeon/assets/73970075/b5c7b217-19de-45ca-8e1c-20002286997e)
+![2024-04-21_21 16 47](https://github.com/sleeplessval/aeon/assets/73970075/26961585-845d-4054-9b5a-f0158d6fae9c)
+
 ## Acknowledgements
 
 - [Alex Charlton's post "Dithering on the GPU"](http://alex-charlton.com/posts/Dithering_on_the_GPU/).
-- [BSL Shaders by CaptainTatsu](https://bitslablab.com/bslshaders/), whose downscale effect was my inspiration for forking a shader.
+- [BSL Shaders by CaptainTatsu](https://bitslablab.com/bslshaders/). Combining downscale with dithering is the reason I forked a shader in the first place.
 

shaders/composite.fsh

@@ -125,20 +125,20 @@ void main() {
 	#endif
 	vec3 color = texture2D(gcolor, newcoord).rgb;
 
-    #if colorMode == 0
+    #if colorMode == MODE_HSV
         color = rgb2hsv(color).xyz;
     #endif
 
     vec3 final;
     #ifdef dithering
-        #if colorMode == 0
+        #if colorMode == MODE_HSV
             vec3 filtered = vec3(dither(color.x, hueMax), dither(color.y, satMax), dither(color.z, valMax)).rgb;
             final = hsv2rgb(filtered);
         #else
             final = vec3(dither(color.r, colormax.x), dither(color.g, colormax.y), dither(color.b, colormax.z));
         #endif
     #else
-        #if colorMode == 0
+        #if colorMode == MODE_HSV
             vec3 filtered = vec3(lightnessStep(color.x, hueMax), lightnessStep(color.y, satMax), lightnessStep(color.z, valMax)).rgb;
             final = hsv2rgb(filtered);
         #else
@@ -146,9 +146,11 @@ void main() {
         #endif
     #endif
 
-    #if colorMode == 1 && colorDepth == 1
+    #if colorMode == MODE_RGB && colorDepth == 1
         if(final.r == 1)
-            final = monoColor;
+            final = monoHigh;
+        else
+            final = monoLow;
     #endif
 
 	#ifdef interlacing

shaders/final.fsh

@@ -4,7 +4,6 @@
 
 //#define aberration
 //#define hBlur
-//#define scanlines
 
 varying vec2 texcoord;
 
@@ -13,26 +12,37 @@ uniform float viewWidth;
 
 #include "/module/aberration.frag"
 #include "/module/horizontal_blur.frag"
+#include "/module/scanline.frag"
+#include "/module/signal.frag"
 
 void main() {
 	vec3 color;
+
+
+	//	software post-processing effects
 	#ifdef hBlur
 		color = hblur();
 	#else
 		color = texture2D(gcolor, texcoord).rgb;
 	#endif
 
-	#ifdef aberration
+	#if scanline > 0
-		color.rb = aberrate().rb;
+		color = scanlines(color);
 	#endif
 
-	#ifdef scanlines
+	//	hardware post-processing effects
-		if(mod(int(gl_FragCoord.y / (pixelSize * 2)), 2) == 0)
+	#if		signal == SIGNAL_NTSC
-			color.rgb *= 0.95;
+		color = ntsc(color);
-		else
+	#elif	signal == SIGNAL_PAL
-			color.rgb /= 0.95;
+		color = pal(color);
 	#endif
 
+	//	physical post-processing effects
+	#ifdef aberration
+		color.rb = (color.rb + aberrate().rb) / 2;
+	#endif
+
+
 	gl_FragData[0] = vec4(color, 1);
 }
 

shaders/gbuffers_damagedblock.fsh

@@ -0,0 +1,10 @@
+#version 120
+
+varying vec2 texcoord;
+
+uniform sampler2D texture;
+
+void main() {
+	gl_FragData[0] = texture2D(texture, texcoord);
+}
+

shaders/gbuffers_damagedblock.vsh

@@ -0,0 +1,3 @@
+
+#include "/gbuffers_basic.vsh"
+

shaders/lang/en_US.lang

@@ -3,12 +3,14 @@ profile.DEFAULT=Default
 profile.AEON=Aeon Upstream
 profile.DOS=DOS
 profile.DOTMATRIX=Dot Matrix Game
-profile.OBRADINN=Return of the Obra Dinn
+profile.EIGHTBIT=8-bit
+profile.OBRADINN=Obra Dinn
 profile.PSX=PSX
 profile.REALITY=Project Reality
 profile.SNES=Super Famicom
 profile.VR32=VR32
 
+
 option.pixelSize=Downscaling
 value.pixelSize.1=Off
 value.pixelSize.2=Low (2x)
@@ -16,11 +18,15 @@ value.pixelSize.4=Medium (4x)
 value.pixelSize.8=High (8x)
 value.pixelSize.16=Silly (16x)
 
+
 screen.COLOR=Color
+
 option.colorMode=Color Mode
 value.colorMode.0=HSV
 value.colorMode.1=RGB
+
 option.dithering=Dithering
+
 option.colorDepth=RGB Depth
 value.colorDepth.1=Monochrome
 value.colorDepth.3=3-bit
@@ -30,10 +36,13 @@ value.colorDepth.12=12-bit
 value.colorDepth.15=15-bit
 value.colorDepth.18=18-bit
 value.colorDepth.24=Truecolor
+
 option.monoPalette=Mono Palette
 value.monoPalette.0=Black & White
 value.monoPalette.1=Dot Matrix
 value.monoPalette.2=Paint the Town
+value.monoPalette.3=Noir
+
 option.hueBits=Hue Depth
 suffix.hueBits=-bit
 option.satBits=Saturation Depth
@@ -41,14 +50,32 @@ suffix.satBits=-bit
 option.valBits=Value Depth
 suffix.valBits=-bit
 
+
 screen.SCREEN=Screen
+
+option.signal=Encoding
+value.signal.0=None
+value.signal.1=NTSC
+value.signal.2=PAL
+
+option.wire=Connector
+value.wire.0=Composite
+value.wire.1=S-Video
+
 option.interlacing=Interlacing
-option.scanlines=Scanlines
+
+option.scanline=Scanlines
+value.scanline.0=Off
+value.scanline.1=Soft
+value.scanline.2=Hard
+
 option.aberration=Chromatic Aberration
 
+
 screen.CONSOLE=Consoles
 
 screen.PSX=PSX (1994)
+
 option.vWarp=Vertex Warping
 option.vWarp.comment=Emulates screen-space vertex snapping responsible for vertex wobble on the Playstation
 value.vWarp.0=Off
@@ -58,24 +85,30 @@ value.vWarp.4=Medium (4x)
 value.vWarp.8=High (8x)
 value.vWarp.16=Extreme (16x)
 value.vWarp.32=Silly (32x)
+
 option.tWarp=Texture Warping
 option.tWarp.comment=Emulates affine texture mapping responsible for warping textures on the Playstation
 
+
 screen.REALITY=Project Reality (1996)
+
 option.hBlur=Horizontal Blur
 option.hBlur.comment=Emulates the blur responsible for reducing LCD clarity on the N64
 
+
 screen.FX=FX
+
 option.dof=Depth of Field
 option.dof.comment=Downscale out-of-focus objects
+
 option.dofRes=DoF Dither
 option.dofRes.comment=Whether DoF focus affects dither resolution.
-value.dofRes.0=Static
+
-value.dofRes.1=Dynamic
 option.worldCurvature=World Curvature
 value.worldCurvature.0=Off
 value.worldCurvature.1=Cylinder
 value.worldCurvature.2=Round
+
 option.worldRadius=Curvature Strength
 value.worldRadius.1024=Low (1024)
 value.worldRadius.512=Medium (512)

shaders/module/aberration.frag

@@ -2,9 +2,9 @@
 vec2 caOffset = vec2(2 * pixelSize / viewWidth, 0);
 
 vec3 aberrate() {
-	vec2 offset	= caOffset * abs(cos(texcoord * 3.14));
+	vec2 offset	= caOffset * cos(texcoord * 3.14);
-	float red	= texture2D(gcolor, texcoord - offset).r;
+	float red	= texture2D(gcolor, texcoord + offset).r;
-	float blue	= texture2D(gcolor, texcoord + offset).b;
+	float blue	= texture2D(gcolor, texcoord - offset).b;
 
 	return vec3(red, 0, blue);
 }

shaders/module/color_depth.frag

@@ -1,4 +1,6 @@
 
+#include "/var/color_depth.glsl"
+
 #define colorMode 0 // [0 1]
 
 #define hueBits 2 // [1 2 3 4 5 6 7 8]
@@ -6,9 +8,9 @@
 #define valBits 2 // [1 2 3 4 5 6 7 8]
 
 #define colorDepth 6 // [1 3 6 8 12 15 18 24]
-#define monoPalette 0 // [0 1 2]
+#define monoPalette 0 // [0 1 2 3]
 
-#if colorMode == 0
+#if colorMode == MODE_HSV
 	//	-- HSV --
 
 	float bit_max(int bits) {
@@ -41,12 +43,18 @@
 		vec3 colormax = vec3(256, 256, 256);
 	#endif
 
-	#if		monoPalette == 0
+	#if		monoPalette == MONOCHROME_BW
-		vec3 monoColor = vec3(1, 1, 1);
+		vec3 monoHigh	= vec3(1);
-	#elif	monoPalette == 1
+		vec3 monoLow	= vec3(0);
-		vec3 monoColor = vec3(0.48, 0.72, 0.28);
+	#elif	monoPalette == MONOCHROME_DOTMATRIX
-	#elif	monoPalette == 2
+		vec3 monoHigh	= vec3(0.31, 0.40, 0.03);
-		vec3 monoColor = vec3(1, 0, 0);
+		vec3 monoLow	= vec3(0.17, 0.29, 0.13);
+	#elif	monoPalette == MONOCHROME_MOTIONSICK
+		vec3 monoHigh	= vec3(1, 0, 0);
+		vec3 monoLow	= vec3(0);
+	#elif	monoPalette == MONOCHROME_NOIR
+		vec3 monoHigh	= vec3(0.73, 0.67, 0.55);
+		vec3 monoLow	= vec3(0.26, 0.23, 0.19);
 	#endif
 
 #endif

shaders/module/horizontal_blur.frag

@@ -8,21 +8,16 @@ float avg(float l, float c, float r) {
 vec3 hblur() {
 	vec3 center = texture2D(gcolor, texcoord).rgb;
 
-	vec2 leftPos = texcoord - neighborOffset;
+	vec3 sum = vec3(0);
-	vec2 rightPos = texcoord + neighborOffset;
+	int count = 0;
+	for(int x = -2; x < 2; x++) {
+		vec2 pos = texcoord - (neighborOffset * x);
+		if(pos.x >= 0 && pos.x < viewWidth) {
+			sum += texture2D(gcolor, pos).rgb;
+			count++;
+		}
+	}
 
-	vec3 left;
+	return sum / count;
-	if(leftPos.x >= 0)
-		left = texture2D(gcolor, leftPos).rgb;
-	else
-		left = center;
-
-	vec3 right;
-	if(rightPos.x >= 0)
-		right = texture2D(gcolor, rightPos).rgb;
-	else
-		right = center;
-
-	return vec3(avg(left.r, center.r, right.r), avg(left.g, center.g, right.g), avg(left.b, center.b, right.b));
 }
 

shaders/module/scanline.frag

@@ -0,0 +1,18 @@
+
+#include "/var/scanline.glsl"
+
+#define scanline 0 // [0 1 2]
+
+vec3 scanlines(vec3 color) {
+	#if		scanline == SCANLINE_SOFT
+		if(mod(int(gl_FragCoord.y / pixelSize * 2), 2) == 0)
+			color.rgb *= 0.95;
+		else
+			color.rgb /= 0.95;
+	#elif	scanline == SCANLINE_HARD
+		if(mod(int(gl_FragCoord.y / pixelSize), 2) == 0)
+			color.rgb *= 0.5;
+	#endif
+	return color;
+}
+

shaders/module/signal.frag

@@ -0,0 +1,69 @@
+
+#include "/var/signal.glsl"
+
+#define signal 0 // [0 1 2]
+#define wire 0 // [0 1]
+
+float luminance(vec3 color) {
+	return dot(color, vec3(0.299, 0.587, 0.114));
+}
+
+vec3 ntsc(vec3 color) {
+	//	convert to YIQ
+	float y = luminance(color);
+	float i = dot(color, vec3(0.596, -.274, -.322));
+	float q = dot(color, vec3(0.211, -.523, 0.312));
+
+	//	faux ntsc signal
+	float carrier = 6.283 * 3.570 * gl_FragCoord.x;		//	2π * 3.57MHz * x
+	float phase = sin(carrier) * i + cos(carrier) * q;
+	float quad = cos(carrier) * i - sin(carrier) * q;
+
+	//	decode faux signal
+	#if		wire == WIRE_COMPOSITE
+		float composite = phase + (y * 5.500);			//	p + (y * 5.5MHz)
+		y = round(composite * 5.500) / 30.250;
+		phase = composite - quad - (y * 5.500);
+		quad = composite - phase - (y * 5.500);
+	#endif
+	i = quad * cos(carrier);
+	q = phase * sin(carrier);
+
+	//	convert back to RGB
+	vec3 yiqColor = vec3(y, i, q);
+
+	float r = dot(yiqColor, vec3(1, 0.956, 0.619));
+	float g = dot(yiqColor, vec3(1, -.272, -.674));
+	float b = dot(yiqColor, vec3(1, -1.106, 1.703));
+
+	return vec3(r, g, b).rgb;
+}
+
+vec3 pal(vec3 color) {
+	//	convert to YUV
+	float y = luminance(color);
+	float u = 0.492 * (color.b - y);
+	float v = 0.877 * (color.r - y);
+
+	//	faux pal signal
+	float carrier = 6.283 * 4.434;
+	float phase = sin(carrier) * u - cos(carrier) * v;
+	float quad = cos(carrier) * u - sin(carrier) * v;
+
+	//	decode faux signal
+	#if		wire == WIRE_COMPOSITE
+		float composite = y + phase;
+	#endif
+	u = quad * cos(carrier);
+	v = phase * sin(carrier);
+
+	//	convert back to RGB
+	vec3 yuvColor = vec3(y, u, v);
+
+	float r = y + (1.140 * v);
+	float g = y - (0.395 * u) - (0.581 * v);
+	float b = y + (2.033 * u);
+
+	return vec3(r, g, b).rgb;
+}
+

shaders/module/world.vert

@@ -1,12 +1,14 @@
 
+#include "/var/world.glsl"
+
 #define worldCurvature 0 // [0 1 2]
 #define worldRadius 512 // [1024 512 256 -256]
 
 void world_curvature() {
-	#if worldCurvature == 1
+	#if worldCurvature == CURVATURE_CYLINDER
 		float z = gl_Position.z * gl_Position.z;
 		gl_Position.y -= 2 * z / worldRadius;
-	#elif worldCurvature == 2
+	#elif worldCurvature == CURVATURE_ROUND
 		vec2 xz = gl_Position.xz;
 		gl_Position.y -= round(( dot(xz, xz) / worldRadius ) * 8) / 8;
 	#endif

shaders/shaders.properties

@@ -5,22 +5,22 @@ profile.DEFAULT=pixelSize=2 colorMode=0 dithering hueBits=2 satBits=2 valBits=2
 profile.AEON=pixelSize=1 colorMode=0 dithering hueBits=3 satBits=2 valBits=2 vWarp=0 !tWarp !hBlur !interlacing
 profile.DOS=pixelSize=4 colorMode=1 dithering colorDepth=3 vWarp=1 !tWarp !hBlur !interlacing
 profile.DOTMATRIX=pixelSize=4 colorMode=1 colorDepth=1 monoPalette=1 dithering vWarp=1 !tWarp !hBlur !interlacing
+profile.EIGHTBIT=pixelSize=4 colorMode=1 dithering colorDepth=8 vWarp=0 !tWarp !hBlur !interlacing
 profile.OBRADINN=pixelSize=2 colorMode=1 colorDepth=1 monoPalette=0 dithering vWarp=0 !tWarp !hBlur !interlacing
 profile.PSX=pixelSize=2 colorMode=1 !dithering colorDepth=24 vWarp=2 tWarp !hBlur interlacing
-profile.REALITY=profile.PSX vWarp=0 !tWarp hBlur interlacing
+profile.REALITY=pixelSize=2 colorMode=1 colorDepth=15 !dithering vWarp=0 !tWarp hBlur interlacing
-profile.SNES=pixelSize=4 colorMode=1 dithering colorDepth=15 vWarp=1 !tWarp !hBlur interlacing
 profile.VR32=pixelSize=8 colorMode=1 !dithering colorDepth=1 monoPalette=2 vWarp=1 !tWarp !hBlur !interlacing
 
 #	-- SCREENS --
 #	default
-screen=<profile> <empty> pixelSize <empty> [COLOR] [SCREEN] [CONSOLE] [FX]
+screen=<profile> <empty> <empty> <empty> pixelSize <empty> [COLOR] [SCREEN] [CONSOLE] [FX]
 
 #	colors
 screen.COLOR.columns=3
 screen.COLOR=colorMode dithering <empty> colorDepth <empty> monoPalette hueBits satBits valBits
 
 #	screen effects
-screen.SCREEN=interlacing scanlines aberration
+screen.SCREEN=signal wire interlacing scanline <empty> <empty> aberration
 
 #	console effects
 screen.CONSOLE.columns=1
@@ -29,7 +29,7 @@ screen.PSX=vWarp tWarp 	#	playstation
 screen.REALITY=hBlur 	#	nintendo 64
 
 #	custom effects
-screen.FX=dof dofRes worldCurvature worldRadius
+screen.FX=dof dofRes <empty> <empty> worldCurvature worldRadius
 
 #	-- CONDITIONALS --
 gbuffers_hand.enabled=tWarp

shaders/var/color_depth.glsl

@@ -0,0 +1,11 @@
+
+//	color mode IDs
+#define MODE_HSV				0
+#define MODE_RGB				1
+
+//	monochrome palette IDs
+#define MONOCHROME_BW			0
+#define MONOCHROME_DOTMATRIX	1
+#define	MONOCHROME_MOTIONSICK	2
+#define MONOCHROME_NOIR			3
+

shaders/var/scanline.glsl

@@ -0,0 +1,5 @@
+
+#define SCANLINE_SOFT		1
+#define SCANLINE_HARD		2
+#define SCANLINE_STRETCH	3
+

shaders/var/signal.glsl

@@ -0,0 +1,8 @@
+
+#define SIGNAL_RGB		0
+#define SIGNAL_NTSC		1
+#define SIGNAL_PAL		2
+
+#define WIRE_COMPOSITE	0
+#define WIRE_SVIDEO		1
+

shaders/var/world.glsl

@@ -0,0 +1,6 @@
+
+//	world curvature IDs
+#define CURVATURE_OFF			0
+#define CURVATURE_CYLINDER		1
+#define CURVATURE_ROUND			2
+