Improved shaders_postprocessing example

This commit is contained in:
Ray 2017-05-16 00:14:14 +02:00
parent c9d6b7e356
commit 65e6a6db53
34 changed files with 24630 additions and 22395 deletions

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@ -60389,6 +60389,29 @@ _
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"þÿG|: ƒÀé+€ÕÁ ½ôí%Ïàóñº<00>ÿ2Ó?ƒÁ`°˜XVWÕ;ß.ñÙxýî|* ƒÀÜRÃ់׊Վ»ÃôÏ`0,NŸùO¦:C>! ƒÁ`ðW¥ ƒÁ`ðWÆÿX`!À`0  ƒÁ`0X0 ƒÁ`À`0 ƒƒÁ`0  ƒÁ`0X0 ƒÁ`À`0 ƒƒÁ`0  ƒÁ`0X0 ƒÁ`À`0 ƒƒÁ`0õø)S/{ž³uáIEND®B`#version 100
precision mediump float;
// Input vertex attributes (from vertex shader)
varying vec2 fragTexCoord;
varying vec4 fragColor;
// Input uniform values
uniform sampler2D texture0;
uniform vec4 colDiffuse;
// NOTE: Add here your custom variables
uniform vec2 resolution = vec2(800, 450);
void main()
{
// Texel color fetching from texture sampler
vec4 texelColor = texture2D(texture0, fragTexCoord);
// NOTE: Implement here your fragment shader code
gl_FragColor = texelColor*colDiffuse;
}#version 100
// Input vertex attributes
attribute vec3 vertexPosition;
attribute vec2 vertexTexCoord;
@ -60450,4 +60473,511 @@ void main()
// Calculate final fragment color
gl_FragColor = ((sum/(samples*samples)) + source)*colDiffuse;
}#version 100
precision mediump float;
// Input vertex attributes (from vertex shader)
varying vec2 fragTexCoord;
varying vec4 fragColor;
// Input uniform values
uniform sampler2D texture0;
uniform vec4 colDiffuse;
// NOTE: Add here your custom variables
// NOTE: Render size values must be passed from code
const float renderWidth = 800.0;
const float renderHeight = 450.0;
vec3 offset = vec3(0.0, 1.3846153846, 3.2307692308);
vec3 weight = vec3(0.2270270270, 0.3162162162, 0.0702702703);
void main()
{
// Texel color fetching from texture sampler
vec3 tc = texture2D(texture0, fragTexCoord).rgb*weight.x;
tc += texture2D(texture0, fragTexCoord + vec2(offset.y)/renderWidth, 0.0).rgb*weight.y;
tc += texture2D(texture0, fragTexCoord - vec2(offset.y)/renderWidth, 0.0).rgb*weight.y;
tc += texture2D(texture0, fragTexCoord + vec2(offset.z)/renderWidth, 0.0).rgb*weight.z;
tc += texture2D(texture0, fragTexCoord - vec2(offset.z)/renderWidth, 0.0).rgb*weight.z;
gl_FragColor = vec4(tc, 1.0);
}# version 100
precision mediump float;
// Input vertex attributes (from vertex shader)
varying vec2 fragTexCoord;
varying vec4 fragColor;
// Input uniform values
uniform sampler2D texture0;
uniform vec4 colDiffuse;
// NOTE: Add here your custom variables
float hatchOffsetY = 5.0;
float lumThreshold01 = 0.9;
float lumThreshold02 = 0.7;
float lumThreshold03 = 0.5;
float lumThreshold04 = 0.3;
void main()
{
vec3 tc = vec3(1.0, 1.0, 1.0);
float lum = length(texture2D(texture0, fragTexCoord).rgb);
if (lum < lumThreshold01)
{
if (mod(gl_FragCoord.x + gl_FragCoord.y, 10.0) == 0.0) tc = vec3(0.0, 0.0, 0.0);
}
if (lum < lumThreshold02)
{
if (mod(gl_FragCoord .x - gl_FragCoord .y, 10.0) == 0.0) tc = vec3(0.0, 0.0, 0.0);
}
if (lum < lumThreshold03)
{
if (mod(gl_FragCoord .x + gl_FragCoord .y - hatchOffsetY, 10.0) == 0.0) tc = vec3(0.0, 0.0, 0.0);
}
if (lum < lumThreshold04)
{
if (mod(gl_FragCoord .x - gl_FragCoord .y - hatchOffsetY, 10.0) == 0.0) tc = vec3(0.0, 0.0, 0.0);
}
gl_FragColor = vec4(tc, 1.0);
}# version 100
precision mediump float;
// Input vertex attributes (from vertex shader)
varying vec2 fragTexCoord;
varying vec4 fragColor;
// Input uniform values
uniform sampler2D texture0;
uniform vec4 colDiffuse;
// NOTE: Add here your custom variables
// NOTE: Render size values must be passed from code
const float renderWidth = 800.0;
const float renderHeight = 450.0;
float stitchingSize = 6.0;
int invert = 0;
vec4 PostFX(sampler2D tex, vec2 uv)
{
vec4 c = vec4(0.0);
float size = stitchingSize;
vec2 cPos = uv * vec2(renderWidth, renderHeight);
vec2 tlPos = floor(cPos / vec2(size, size));
tlPos *= size;
int remX = int(mod(cPos.x, size));
int remY = int(mod(cPos.y, size));
if (remX == 0 && remY == 0) tlPos = cPos;
vec2 blPos = tlPos;
blPos.y += (size - 1.0);
if ((remX == remY) || (((int(cPos.x) - int(blPos.x)) == (int(blPos.y) - int(cPos.y)))))
{
if (invert == 1) c = vec4(0.2, 0.15, 0.05, 1.0);
else c = texture2D(tex, tlPos * vec2(1.0/renderWidth, 1.0/renderHeight)) * 1.4;
}
else
{
if (invert == 1) c = texture2D(tex, tlPos * vec2(1.0/renderWidth, 1.0/renderHeight)) * 1.4;
else c = vec4(0.0, 0.0, 0.0, 1.0);
}
return c;
}
void main()
{
vec3 tc = PostFX(texture0, fragTexCoord).rgb;
gl_FragColor = vec4(tc, 1.0);
}#version 100
precision mediump float;
// Input vertex attributes (from vertex shader)
varying vec2 fragTexCoord;
// Input uniform values
uniform sampler2D texture0;
// NOTE: Default parameters for Oculus Rift DK2 device
const vec2 LeftLensCenter = vec2(0.2863248, 0.5);
const vec2 RightLensCenter = vec2(0.7136753, 0.5);
const vec2 LeftScreenCenter = vec2(0.25, 0.5);
const vec2 RightScreenCenter = vec2(0.75, 0.5);
const vec2 Scale = vec2(0.25, 0.45);
const vec2 ScaleIn = vec2(4.0, 2.5);
const vec4 HmdWarpParam = vec4(1.0, 0.22, 0.24, 0.0);
const vec4 ChromaAbParam = vec4(0.996, -0.004, 1.014, 0.0);
void main()
{
// The following two variables need to be set per eye
vec2 LensCenter = fragTexCoord.x < 0.5 ? LeftLensCenter : RightLensCenter;
vec2 ScreenCenter = fragTexCoord.x < 0.5 ? LeftScreenCenter : RightScreenCenter;
// Scales input texture coordinates for distortion: vec2 HmdWarp(vec2 fragTexCoord, vec2 LensCenter)
vec2 theta = (fragTexCoord - LensCenter)*ScaleIn; // Scales to [-1, 1]
float rSq = theta.x*theta.x + theta.y*theta.y;
vec2 theta1 = theta*(HmdWarpParam.x + HmdWarpParam.y*rSq + HmdWarpParam.z*rSq*rSq + HmdWarpParam.w*rSq*rSq*rSq);
//vec2 tc = LensCenter + Scale*theta1;
// Detect whether blue texture coordinates are out of range since these will scaled out the furthest
vec2 thetaBlue = theta1*(ChromaAbParam.z + ChromaAbParam.w*rSq);
vec2 tcBlue = LensCenter + Scale*thetaBlue;
if (any(bvec2(clamp(tcBlue, ScreenCenter - vec2(0.25, 0.5), ScreenCenter + vec2(0.25, 0.5)) - tcBlue))) gl_FragColor = vec4(0.0, 0.0, 0.0, 1.0);
else
{
// Do blue texture lookup
float blue = texture2D(texture0, tcBlue).b;
// Do green lookup (no scaling)
vec2 tcGreen = LensCenter + Scale*theta1;
float green = texture2D(texture0, tcGreen).g;
// Do red scale and lookup
vec2 thetaRed = theta1*(ChromaAbParam.x + ChromaAbParam.y*rSq);
vec2 tcRed = LensCenter + Scale*thetaRed;
float red = texture2D(texture0, tcRed).r;
gl_FragColor = vec4(red, green, blue, 1.0);
}
}
#version 100
precision mediump float;
// Input vertex attributes (from vertex shader)
varying vec2 fragTexCoord;
varying vec4 fragColor;
// Input uniform values
uniform sampler2D texture0;
uniform vec4 colDiffuse;
// NOTE: Add here your custom variables
void main()
{
vec4 color = texture2D(texture0, fragTexCoord);
color += texture2D(texture0, fragTexCoord + 0.001);
color += texture2D(texture0, fragTexCoord + 0.003);
color += texture2D(texture0, fragTexCoord + 0.005);
color += texture2D(texture0, fragTexCoord + 0.007);
color += texture2D(texture0, fragTexCoord + 0.009);
color += texture2D(texture0, fragTexCoord + 0.011);
color += texture2D(texture0, fragTexCoord - 0.001);
color += texture2D(texture0, fragTexCoord - 0.003);
color += texture2D(texture0, fragTexCoord - 0.005);
color += texture2D(texture0, fragTexCoord - 0.007);
color += texture2D(texture0, fragTexCoord - 0.009);
color += texture2D(texture0, fragTexCoord - 0.011);
color.rgb = vec3((color.r + color.g + color.b)/3.0);
color = color/9.5;
gl_FragColor = color;
} #version 100
precision mediump float;
// Input vertex attributes (from vertex shader)
varying vec2 fragTexCoord;
varying vec4 fragColor;
// Input uniform values
uniform sampler2D texture0;
uniform vec4 colDiffuse;
// NOTE: Add here your custom variables
const float PI = 3.1415926535;
void main()
{
float aperture = 178.0;
float apertureHalf = 0.5 * aperture * (PI / 180.0);
float maxFactor = sin(apertureHalf);
vec2 uv = vec2(0.0);
vec2 xy = 2.0 * fragTexCoord.xy - 1.0;
float d = length(xy);
if (d < (2.0 - maxFactor))
{
d = length(xy * maxFactor);
float z = sqrt(1.0 - d * d);
float r = atan(d, z) / PI;
float phi = atan(xy.y, xy.x);
uv.x = r * cos(phi) + 0.5;
uv.y = r * sin(phi) + 0.5;
}
else
{
uv = fragTexCoord.xy;
}
gl_FragColor = texture2D(texture0, uv);
}#version 100
precision mediump float;
// Input vertex attributes (from vertex shader)
varying vec2 fragTexCoord;
varying vec4 fragColor;
// Input uniform values
uniform sampler2D texture0;
uniform vec4 colDiffuse;
// NOTE: Add here your custom variables
void main()
{
// Texel color fetching from texture sampler
vec4 texelColor = texture2D(texture0, fragTexCoord)*colDiffuse*fragColor;
// Convert texel color to grayscale using NTSC conversion weights
float gray = dot(texelColor.rgb, vec3(0.299, 0.587, 0.114));
// Calculate final fragment color
gl_FragColor = vec4(gray, gray, gray, texelColor.a);
}#version 100
precision mediump float;
// Input vertex attributes (from vertex shader)
varying vec2 fragTexCoord;
varying vec4 fragColor;
// Input uniform values
uniform sampler2D texture0;
uniform vec4 colDiffuse;
// NOTE: Add here your custom variables
// NOTE: Render size values must be passed from code
const float renderWidth = 800.0;
const float renderHeight = 450.0;
const float pixelWidth = 5.0;
const float pixelHeight = 5.0;
void main()
{
float dx = pixelWidth*(1.0/renderWidth);
float dy = pixelHeight*(1.0/renderHeight);
vec2 coord = vec2(dx*floor(fragTexCoord.x/dx), dy*floor(fragTexCoord.y/dy));
vec3 tc = texture2D(texture0, coord).rgb;
gl_FragColor = vec4(tc, 1.0);
}#version 100
precision mediump float;
// Input vertex attributes (from vertex shader)
varying vec2 fragTexCoord;
varying vec4 fragColor;
// Input uniform values
uniform sampler2D texture0;
uniform vec4 colDiffuse;
// NOTE: Add here your custom variables
float gamma = 0.6;
float numColors = 8.0;
void main()
{
vec3 color = texture2D(texture0, fragTexCoord.xy).rgb;
color = pow(color, vec3(gamma, gamma, gamma));
color = color*numColors;
color = floor(color);
color = color/numColors;
color = pow(color, vec3(1.0/gamma));
gl_FragColor = vec4(color, 1.0);
}#version 100
precision mediump float;
// Input vertex attributes (from vertex shader)
varying vec2 fragTexCoord;
varying vec4 fragColor;
// Input uniform values
uniform sampler2D texture0;
uniform vec4 colDiffuse;
// NOTE: Add here your custom variables
void main()
{
vec3 color = texture2D(texture0, fragTexCoord).rgb;
vec3 colors[3];
colors[0] = vec3(0.0, 0.0, 1.0);
colors[1] = vec3(1.0, 1.0, 0.0);
colors[2] = vec3(1.0, 0.0, 0.0);
float lum = (color.r + color.g + color.b)/3.0;
vec3 tc = vec3(0.0, 0.0, 0.0);
if (lum < 0.5) tc = mix(colors[0], colors[1], lum/0.5);
else tc = mix(colors[1], colors[2], (lum - 0.5)/0.5);
gl_FragColor = vec4(tc, 1.0);
}#version 100
precision mediump float;
// Input vertex attributes (from vertex shader)
varying vec2 fragTexCoord;
varying vec4 fragColor;
// Input uniform values
uniform sampler2D texture0;
uniform vec4 colDiffuse;
// NOTE: Add here your custom variables
float offset = 0.0;
float frequency = 450.0/3.0;
uniform float time;
void main()
{
/*
// Scanlines method 1
float tval = 0; //time
vec2 uv = 0.5 + (fragTexCoord - 0.5)*(0.9 + 0.01*sin(0.5*tval));
vec4 color = texture2D(texture0, fragTexCoord);
color = clamp(color*0.5 + 0.5*color*color*1.2, 0.0, 1.0);
color *= 0.5 + 0.5*16.0*uv.x*uv.y*(1.0 - uv.x)*(1.0 - uv.y);
color *= vec4(0.8, 1.0, 0.7, 1);
color *= 0.9 + 0.1*sin(10.0*tval + uv.y*1000.0);
color *= 0.97 + 0.03*sin(110.0*tval);
fragColor = color;
*/
// Scanlines method 2
float globalPos = (fragTexCoord.y + offset) * frequency;
float wavePos = cos((fract(globalPos) - 0.5)*3.14);
vec4 color = texture2D(texture0, fragTexCoord);
gl_FragColor = mix(vec4(0.0, 0.3, 0.0, 0.0), color, wavePos);
}#version 100
precision mediump float;
// Input vertex attributes (from vertex shader)
varying vec2 fragTexCoord;
varying vec4 fragColor;
// Input uniform values
uniform sampler2D texture0;
uniform vec4 colDiffuse;
// NOTE: Add here your custom variables
vec2 resolution = vec2(800.0, 450.0);
void main()
{
float x = 1.0/resolution.x;
float y = 1.0/resolution.y;
vec4 horizEdge = vec4(0.0);
horizEdge -= texture2D(texture0, vec2(fragTexCoord.x - x, fragTexCoord.y - y))*1.0;
horizEdge -= texture2D(texture0, vec2(fragTexCoord.x - x, fragTexCoord.y ))*2.0;
horizEdge -= texture2D(texture0, vec2(fragTexCoord.x - x, fragTexCoord.y + y))*1.0;
horizEdge += texture2D(texture0, vec2(fragTexCoord.x + x, fragTexCoord.y - y))*1.0;
horizEdge += texture2D(texture0, vec2(fragTexCoord.x + x, fragTexCoord.y ))*2.0;
horizEdge += texture2D(texture0, vec2(fragTexCoord.x + x, fragTexCoord.y + y))*1.0;
vec4 vertEdge = vec4(0.0);
vertEdge -= texture2D(texture0, vec2(fragTexCoord.x - x, fragTexCoord.y - y))*1.0;
vertEdge -= texture2D(texture0, vec2(fragTexCoord.x , fragTexCoord.y - y))*2.0;
vertEdge -= texture2D(texture0, vec2(fragTexCoord.x + x, fragTexCoord.y - y))*1.0;
vertEdge += texture2D(texture0, vec2(fragTexCoord.x - x, fragTexCoord.y + y))*1.0;
vertEdge += texture2D(texture0, vec2(fragTexCoord.x , fragTexCoord.y + y))*2.0;
vertEdge += texture2D(texture0, vec2(fragTexCoord.x + x, fragTexCoord.y + y))*1.0;
vec3 edge = sqrt((horizEdge.rgb*horizEdge.rgb) + (vertEdge.rgb*vertEdge.rgb));
gl_FragColor = vec4(edge, texture2D(texture0, fragTexCoord).a);
}#version 100
precision mediump float;
// Input vertex attributes (from vertex shader)
varying vec2 fragTexCoord;
varying vec4 fragColor;
// Input uniform values
uniform sampler2D texture0;
uniform vec4 colDiffuse;
// NOTE: Add here your custom variables
// NOTE: Render size values should be passed from code
const float renderWidth = 800;
const float renderHeight = 450;
float radius = 250.0;
float angle = 0.8;
uniform vec2 center;
void main()
{
vec2 texSize = vec2(renderWidth, renderHeight);
vec2 tc = fragTexCoord*texSize;
tc -= center;
float dist = length(tc);
if (dist < radius)
{
float percent = (radius - dist)/radius;
float theta = percent*percent*angle*8.0;
float s = sin(theta);
float c = cos(theta);
tc = vec2(dot(tc, vec2(c, -s)), dot(tc, vec2(s, c)));
}
tc += center;
vec4 color = texture2D(texture0, tc/texSize)*colDiffuse*fragColor;;
gl_FragColor = vec4(color.rgb, 1.0);;
}