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temporal dithering test

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minjaesong
2021-10-10 01:54:07 +09:00
parent 35b4b5cfd5
commit 036310921f
7 changed files with 28 additions and 12 deletions
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7
assets/4096_bayer.frag
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@@ -21,8 +21,9 @@ varying vec4 v_color;
varying vec2 v_texCoords;
uniform sampler2D u_texture;
uniform sampler2D u_pattern;
uniform ivec2 rnd = ivec2(0,0);
float quant = 63.0; // 64 steps -> 63.0; 256 steps -> 255.0
float quant = 127.0; // 64 steps -> 63.0; 256 steps -> 255.0
vec4 quantiser = vec4(quant);
vec4 quantiserDivider = vec4(1.0 / quant);
@@ -36,8 +37,8 @@ vec4 nearestColour(vec4 inColor) {
}
vec4 getDitherredDot(vec4 inColor) {
vec4 bayerThreshold = vec4(texture2D(u_pattern, gl_FragCoord.xy * patternsize) - 0.5);
return nearestColour(inColor + bayerThreshold * quantiserDivider);
vec4 bayerThreshold = vec4(texture2D(u_pattern, (gl_FragCoord.xy + rnd) * patternsize) - 0.5);
return nearestColour(bayerThreshold * quantiserDivider + inColor);
}

7
assets/4096_bayer_aaa1.frag
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@@ -13,8 +13,9 @@ varying vec4 v_color;
varying vec2 v_texCoords;
uniform sampler2D u_texture;
uniform sampler2D u_pattern;
uniform ivec2 rnd = ivec2(0,0);
float quant = 63.0; // 64 steps -> 63.0; 256 steps -> 255.0
float quant = 127.0; // 64 steps -> 63.0; 256 steps -> 255.0
vec4 quantiser = vec4(quant);
vec4 quantiserDivider = vec4(1.0 / quant);
@@ -28,8 +29,8 @@ vec4 nearestColour(vec4 inColor) {
}
vec4 getDitherredDot(vec4 inColor) {
vec4 bayerThreshold = vec4(texture2D(u_pattern, gl_FragCoord.xy * patternsize) - 0.5);
return nearestColour(inColor + bayerThreshold * quantiserDivider);
vec4 bayerThreshold = vec4(texture2D(u_pattern, (gl_FragCoord.xy + rnd) * patternsize) - 0.5);
return nearestColour(bayerThreshold * quantiserDivider + inColor);
}

7
assets/4096_bayer_rgb1.frag
View File

@@ -13,8 +13,9 @@ varying vec4 v_color;
varying vec2 v_texCoords;
uniform sampler2D u_texture;
uniform sampler2D u_pattern;
uniform ivec2 rnd = ivec2(0,0);
float quant = 63.0; // 64 steps -> 63.0; 256 steps -> 255.0
float quant = 127.0; // 64 steps -> 63.0; 256 steps -> 255.0
vec4 quantiser = vec4(quant);
vec4 quantiserDivider = vec4(1.0 / quant);
@@ -28,8 +29,8 @@ vec4 nearestColour(vec4 inColor) {
}
vec4 getDitherredDot(vec4 inColor) {
vec4 bayerThreshold = vec4(texture2D(u_pattern, gl_FragCoord.xy * patternsize) - 0.5);
return nearestColour(inColor + bayerThreshold * quantiserDivider);
vec4 bayerThreshold = vec4(texture2D(u_pattern, (gl_FragCoord.xy + rnd) * patternsize) - 0.5);
return nearestColour(bayerThreshold * quantiserDivider + inColor);
}

7
assets/blur_dither.frag
View File

@@ -11,8 +11,9 @@ varying vec4 v_color;
varying vec2 v_texCoords;
uniform sampler2D u_texture;
uniform sampler2D u_pattern;
uniform ivec2 rnd = ivec2(0,0);
float quant = 63.0; // 64 steps -> 63.0; 256 steps -> 255.0
float quant = 127.0; // 64 steps -> 63.0; 256 steps -> 255.0
vec4 quantiser = vec4(quant);
vec4 quantiserDivider = vec4(1.0 / quant);
@@ -26,8 +27,8 @@ vec4 nearestColour(vec4 inColor) {
}
vec4 getDitherredDot(vec4 inColor) {
vec4 bayerThreshold = vec4(texture2D(u_pattern, gl_FragCoord.xy * patternsize) - 0.5);
return nearestColour(inColor + bayerThreshold * quantiserDivider);
vec4 bayerThreshold = vec4(texture2D(u_pattern, (gl_FragCoord.xy + rnd) * patternsize) - 0.5);
return nearestColour(bayerThreshold * quantiserDivider + inColor);
}