Add several post shader effects.

This commit is contained in:
Marcus Ihde 2014-03-28 03:32:32 +01:00
parent 5caeb12568
commit 16cc91724b
10 changed files with 164 additions and 37 deletions

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gfx/light.png Normal file

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@ -87,7 +87,7 @@ function love.light.newWorld()
local lightposrange = {o.lights[i].x, love.graphics.getHeight() - o.lights[i].y, o.lights[i].range} local lightposrange = {o.lights[i].x, love.graphics.getHeight() - o.lights[i].y, o.lights[i].range}
LOVE_LIGHT_CURRENT = o.lights[i] LOVE_LIGHT_CURRENT = o.lights[i]
LOVE_LIGHT_DIRECTION = LOVE_LIGHT_DIRECTION + 0.002 LOVE_LIGHT_DIRECTION = LOVE_LIGHT_DIRECTION + 0.002
o.shader:send("lightPosition", {o.lights[i].x - LOVE_LIGHT_TRANSLATE_X, love.graphics.getHeight() - (o.lights[i].y - LOVE_LIGHT_TRANSLATE_Y)}) o.shader:send("lightPosition", {o.lights[i].x - LOVE_LIGHT_TRANSLATE_X, love.graphics.getHeight() - (o.lights[i].y - LOVE_LIGHT_TRANSLATE_Y), o.lights[i].z})
o.shader:send("lightRange", o.lights[i].range) o.shader:send("lightRange", o.lights[i].range)
o.shader:send("lightColor", {o.lights[i].red / 255.0, o.lights[i].green / 255.0, o.lights[i].blue / 255.0}) o.shader:send("lightColor", {o.lights[i].red / 255.0, o.lights[i].green / 255.0, o.lights[i].blue / 255.0})
o.shader:send("lightSmooth", o.lights[i].smooth) o.shader:send("lightSmooth", o.lights[i].smooth)
@ -315,9 +315,8 @@ function love.light.newWorld()
end end
end end
end end
love.graphics.setBlendMode("replace") love.graphics.setColor(0, 0, 0)
love.graphics.setColor(0, 0, 0, 0)
for i = 1, #o.body do for i = 1, #o.body do
if not o.body[i].refractive then if not o.body[i].refractive then
if o.body[i].type == "circle" then if o.body[i].type == "circle" then
@ -333,7 +332,6 @@ function love.light.newWorld()
end end
-- create reflection map -- create reflection map
love.graphics.setBlendMode("alpha")
if o.changed then if o.changed then
o.reflectionMap:clear(0, 0, 0) o.reflectionMap:clear(0, 0, 0)
love.graphics.setCanvas(o.reflectionMap) love.graphics.setCanvas(o.reflectionMap)
@ -615,8 +613,8 @@ function love.light.newWorld()
end end
end end
-- set light position -- set light position
o.setLightPosition = function(n, x, y) o.setLightPosition = function(n, x, y, z)
o.lights[n].setPosition(x, y) o.lights[n].setPosition(x, y, z)
end end
-- set light x -- set light x
o.setLightX = function(n, x) o.setLightX = function(n, x)
@ -675,10 +673,12 @@ function love.light.newLight(p, x, y, red, green, blue, range)
o.changed = true o.changed = true
o.visible = true o.visible = true
-- set position -- set position
o.setPosition = function(x, y) o.setPosition = function(x, y, z)
if x ~= o.x or y ~= o.y then o.z = z or o.z
if x ~= o.x or y ~= o.y or z ~= o.z then
o.x = x o.x = x
o.y = y o.y = y
o.z = z
o.changed = true o.changed = true
end end
end end

View File

@ -75,6 +75,7 @@ function love.load()
ape = love.graphics.newImage("gfx/ape.png") ape = love.graphics.newImage("gfx/ape.png")
ape_normal = love.graphics.newImage("gfx/ape_normal.png") ape_normal = love.graphics.newImage("gfx/ape_normal.png")
ape_glow = love.graphics.newImage("gfx/ape_glow.png") ape_glow = love.graphics.newImage("gfx/ape_glow.png")
imgLight = love.graphics.newImage("gfx/light.png")
-- materials -- materials
material = {} material = {}
@ -110,6 +111,7 @@ function love.load()
textureOn = true textureOn = true
normalOn = false normalOn = false
glowBlur = 1.0 glowBlur = 1.0
effectOn = 0.0
offsetX = 0.0 offsetX = 0.0
offsetY = 0.0 offsetY = 0.0
@ -123,7 +125,7 @@ end
function love.update(dt) function love.update(dt)
love.window.setTitle("Light vs. Shadow Engine (FPS:" .. love.timer.getFPS() .. ")") love.window.setTitle("Light vs. Shadow Engine (FPS:" .. love.timer.getFPS() .. ")")
mouseLight.setPosition(love.mouse.getX(), love.mouse.getY()) mouseLight.setPosition(love.mouse.getX(), love.mouse.getY(), 16.0 + (math.sin(lightDirection) + 1.0) * 64.0)
mx = love.mouse.getX() mx = love.mouse.getX()
my = love.mouse.getY() my = love.mouse.getY()
lightDirection = lightDirection + dt lightDirection = lightDirection + dt
@ -282,20 +284,22 @@ function love.draw()
love.graphics.setBlendMode("alpha") love.graphics.setBlendMode("alpha")
for i = 1, phyCnt do for i = 1, phyCnt do
if phyLight[i].getType() == "image" and not phyLight[i].material then if phyLight[i].getType() == "image" then
if not normalOn then if normalOn and phyLight[i].normal then
love.graphics.setColor(255, 255, 255)
love.graphics.draw(phyLight[i].normal, phyLight[i].x - phyLight[i].nx, phyLight[i].y - phyLight[i].ny)
elseif not phyLight[i].material then
math.randomseed(i) math.randomseed(i)
love.graphics.setColor(math.random(127, 255), math.random(127, 255), math.random(127, 255)) love.graphics.setColor(math.random(127, 255), math.random(127, 255), math.random(127, 255))
love.graphics.draw(phyLight[i].img, phyLight[i].x - phyLight[i].ix, phyLight[i].y - phyLight[i].iy) love.graphics.draw(phyLight[i].img, phyLight[i].x - phyLight[i].ix, phyLight[i].y - phyLight[i].iy)
elseif phyLight[i].normal then
love.graphics.setColor(255, 255, 255)
love.graphics.draw(phyLight[i].normal, phyLight[i].x - phyLight[i].nx, phyLight[i].y - phyLight[i].ny)
end end
end end
end end
lightWorld.drawMaterial() if not normalOn then
lightWorld.drawMaterial()
end
-- draw pixel shadow -- draw pixel shadow
if lightOn and not normalOn then if lightOn and not normalOn then
lightWorld.drawPixelShadow() lightWorld.drawPixelShadow()
@ -312,6 +316,8 @@ function love.draw()
-- draw refraction -- draw refraction
lightWorld.drawRefraction() lightWorld.drawRefraction()
love.graphics.draw(imgLight, mx - 5, (my - 5) - (16.0 + (math.sin(lightDirection) + 1.0) * 64.0))
-- draw help -- draw help
if helpOn then if helpOn then
love.graphics.setBlendMode("alpha") love.graphics.setBlendMode("alpha")
@ -377,6 +383,13 @@ function love.draw()
love.graphics.setColor(255, 0, 0) love.graphics.setColor(255, 0, 0)
love.graphics.print("F9: Glow Blur (off)", 4 + 152 * 3, 4 + 20 * 1) love.graphics.print("F9: Glow Blur (off)", 4 + 152 * 3, 4 + 20 * 1)
end end
if effectOn >= 1.0 then
love.graphics.setColor(0, 255, 0)
love.graphics.print("F10: Effects (" .. effectOn .. ")", 4 + 152 * 4, 4 + 20 * 1)
else
love.graphics.setColor(255, 0, 0)
love.graphics.print("F10: Effects (off)", 4 + 152 * 4, 4 + 20 * 1)
end
love.graphics.setColor(255, 0, 255) love.graphics.setColor(255, 0, 255)
love.graphics.print("F11: Clear obj.", 4 + 152 * 4, 4 + 20 * 2) love.graphics.print("F11: Clear obj.", 4 + 152 * 4, 4 + 20 * 2)
love.graphics.print("F12: Clear lights", 4 + 152 * 4, 4 + 20 * 3) love.graphics.print("F12: Clear lights", 4 + 152 * 4, 4 + 20 * 3)
@ -407,6 +420,17 @@ function love.draw()
love.postshader.addEffect("bloom", 2.0, bloomOn) love.postshader.addEffect("bloom", 2.0, bloomOn)
end end
if effectOn == 1.0 then
love.postshader.addEffect("4colors", {15, 56, 15}, {48, 98, 48}, {139, 172, 15}, {155, 188, 15})
--love.postshader.addEffect("4colors", {108, 108, 78}, {142, 139, 87}, {195, 196, 165}, {227, 230, 201})
elseif effectOn == 2.0 then
love.postshader.addEffect("monochrom")
elseif effectOn == 3.0 then
love.postshader.addEffect("scanlines")
elseif effectOn == 4.0 then
love.postshader.addEffect("tiltshift", 4.0)
end
love.postshader.draw() love.postshader.draw()
end end
@ -427,6 +451,7 @@ function love.mousepressed(x, y, c)
light.setGlowStrength(0.3) light.setGlowStrength(0.3)
elseif c == "l" then elseif c == "l" then
-- add rectangle -- add rectangle
math.randomseed(love.timer.getTime())
phyCnt = phyCnt + 1 phyCnt = phyCnt + 1
phyLight[phyCnt] = lightWorld.newPolygon() phyLight[phyCnt] = lightWorld.newPolygon()
phyBody[phyCnt] = love.physics.newBody(physicWorld, x, y, "dynamic") phyBody[phyCnt] = love.physics.newBody(physicWorld, x, y, "dynamic")
@ -435,6 +460,7 @@ function love.mousepressed(x, y, c)
phyFixture[phyCnt]:setRestitution(0.5) phyFixture[phyCnt]:setRestitution(0.5)
elseif c == "r" then elseif c == "r" then
-- add circle -- add circle
math.randomseed(love.timer.getTime())
cRadius = math.random(8, 32) cRadius = math.random(8, 32)
phyCnt = phyCnt + 1 phyCnt = phyCnt + 1
phyLight[phyCnt] = lightWorld.newCircle(x, y, cRadius) phyLight[phyCnt] = lightWorld.newCircle(x, y, cRadius)
@ -487,6 +513,11 @@ function love.keypressed(k, u)
glowBlur = 0.0 glowBlur = 0.0
end end
lightWorld.setGlowStrength(glowBlur) lightWorld.setGlowStrength(glowBlur)
elseif k == "f10" then
effectOn = effectOn + 1.0
if effectOn > 4.0 then
effectOn = 0.0
end
elseif k == "f11" then elseif k == "f11" then
physicWorld:destroy() physicWorld:destroy()
lightWorld.clearBodys() lightWorld.clearBodys()

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@ -6,9 +6,14 @@ LOVE_POSTSHADER_BLURV = love.graphics.newShader("shader/blurv.glsl")
LOVE_POSTSHADER_BLURH = love.graphics.newShader("shader/blurh.glsl") LOVE_POSTSHADER_BLURH = love.graphics.newShader("shader/blurh.glsl")
LOVE_POSTSHADER_CONTRAST = love.graphics.newShader("shader/contrast.glsl") LOVE_POSTSHADER_CONTRAST = love.graphics.newShader("shader/contrast.glsl")
LOVE_POSTSHADER_CHROMATIC_ABERRATION = love.graphics.newShader("shader/chromatic_aberration.glsl") LOVE_POSTSHADER_CHROMATIC_ABERRATION = love.graphics.newShader("shader/chromatic_aberration.glsl")
LOVE_POSTSHADER_FOUR_COLOR = love.graphics.newShader("shader/four_colors.glsl")
LOVE_POSTSHADER_MONOCHROM = love.graphics.newShader("shader/monochrom.glsl")
LOVE_POSTSHADER_SCANLINES = love.graphics.newShader("shader/scanlines.glsl")
LOVE_POSTSHADER_TILT_SHIFT = love.graphics.newShader("shader/tilt_shift.glsl")
LOVE_POSTSHADER_BLURV:send("screen", {love.window.getWidth(), love.window.getHeight()}) LOVE_POSTSHADER_BLURV:send("screen", {love.window.getWidth(), love.window.getHeight()})
LOVE_POSTSHADER_BLURH:send("screen", {love.window.getWidth(), love.window.getHeight()}) LOVE_POSTSHADER_BLURH:send("screen", {love.window.getWidth(), love.window.getHeight()})
LOVE_POSTSHADER_SCANLINES:send("screenHeight", {love.window.getWidth(), love.window.getHeight()})
love.postshader = {} love.postshader = {}
@ -25,12 +30,13 @@ love.postshader.addEffect = function(shader, ...)
args = {...} args = {...}
LOVE_POSTSHADER_LAST_BUFFER = love.graphics.getCanvas() LOVE_POSTSHADER_LAST_BUFFER = love.graphics.getCanvas()
love.graphics.setCanvas(LOVE_POSTSHADER_BUFFER_BACK)
love.graphics.setBlendMode("alpha")
if shader == "bloom" then if shader == "bloom" then
-- Bloom Shader -- Bloom Shader
LOVE_POSTSHADER_BLURV:send("steps", args[1] or 2.0) LOVE_POSTSHADER_BLURV:send("steps", args[1] or 2.0)
LOVE_POSTSHADER_BLURH:send("steps", args[1] or 2.0) LOVE_POSTSHADER_BLURH:send("steps", args[1] or 2.0)
love.graphics.setCanvas(LOVE_POSTSHADER_BUFFER_BACK)
love.graphics.setBlendMode("alpha")
love.graphics.setShader(LOVE_POSTSHADER_BLURV) love.graphics.setShader(LOVE_POSTSHADER_BLURV)
love.graphics.draw(LOVE_POSTSHADER_BUFFER_RENDER) love.graphics.draw(LOVE_POSTSHADER_BUFFER_RENDER)
@ -53,8 +59,44 @@ love.postshader.addEffect = function(shader, ...)
-- Blur Shader -- Blur Shader
LOVE_POSTSHADER_BLURV:send("steps", args[1] or 2.0) LOVE_POSTSHADER_BLURV:send("steps", args[1] or 2.0)
LOVE_POSTSHADER_BLURH:send("steps", args[2] or 2.0) LOVE_POSTSHADER_BLURH:send("steps", args[2] or 2.0)
love.graphics.setShader(LOVE_POSTSHADER_BLURV)
love.graphics.draw(LOVE_POSTSHADER_BUFFER_RENDER)
love.graphics.setShader(LOVE_POSTSHADER_BLURH)
love.graphics.draw(LOVE_POSTSHADER_BUFFER_BACK)
elseif shader == "chromatic" then
-- Chromatic Shader
LOVE_POSTSHADER_CHROMATIC_ABERRATION:send("redStrength", {args[1] or 0.0, args[2] or 0.0})
LOVE_POSTSHADER_CHROMATIC_ABERRATION:send("greenStrength", {args[3] or 0.0, args[4] or 0.0})
LOVE_POSTSHADER_CHROMATIC_ABERRATION:send("blueStrength", {args[5] or 0.0, args[6] or 0.0})
love.graphics.setCanvas(LOVE_POSTSHADER_BUFFER_BACK) love.graphics.setCanvas(LOVE_POSTSHADER_BUFFER_BACK)
love.graphics.setBlendMode("alpha") love.graphics.setShader(LOVE_POSTSHADER_CHROMATIC_ABERRATION)
love.graphics.draw(LOVE_POSTSHADER_BUFFER_RENDER)
elseif shader == "4colors" then
-- 4 Color Shader
for i = 1, 4 do
for k = 1, 3 do
args[i][k] = args[i][k] / 255.0
end
end
LOVE_POSTSHADER_FOUR_COLOR:send("palette", args[1], args[2], args[3], args[4])
love.graphics.setShader(LOVE_POSTSHADER_FOUR_COLOR)
love.graphics.draw(LOVE_POSTSHADER_BUFFER_RENDER)
elseif shader == "monochrom" then
-- Monochrom Shader
LOVE_POSTSHADER_MONOCHROM:send("time", love.timer.getTime())
love.graphics.setShader(LOVE_POSTSHADER_MONOCHROM)
love.graphics.draw(LOVE_POSTSHADER_BUFFER_RENDER)
elseif shader == "scanlines" then
-- Scanlines Shader
LOVE_POSTSHADER_SCANLINES:send("time", love.timer.getTime())
love.graphics.setShader(LOVE_POSTSHADER_SCANLINES)
love.graphics.draw(LOVE_POSTSHADER_BUFFER_RENDER)
elseif shader == "tiltshift" then
-- Blur Shader
LOVE_POSTSHADER_BLURV:send("steps", args[1] or 2.0)
LOVE_POSTSHADER_BLURH:send("steps", args[1] or 2.0)
love.graphics.setShader(LOVE_POSTSHADER_BLURV) love.graphics.setShader(LOVE_POSTSHADER_BLURV)
love.graphics.draw(LOVE_POSTSHADER_BUFFER_RENDER) love.graphics.draw(LOVE_POSTSHADER_BUFFER_RENDER)
@ -62,21 +104,13 @@ love.postshader.addEffect = function(shader, ...)
love.graphics.setShader(LOVE_POSTSHADER_BLURH) love.graphics.setShader(LOVE_POSTSHADER_BLURH)
love.graphics.draw(LOVE_POSTSHADER_BUFFER_BACK) love.graphics.draw(LOVE_POSTSHADER_BUFFER_BACK)
love.graphics.setCanvas(LOVE_POSTSHADER_LAST_BUFFER) LOVE_POSTSHADER_TILT_SHIFT:send("buffer", LOVE_POSTSHADER_BUFFER_RENDER)
love.graphics.setShader() love.graphics.setShader(LOVE_POSTSHADER_TILT_SHIFT)
love.graphics.setColor(255, 255, 255)
love.graphics.draw(LOVE_POSTSHADER_BUFFER_BACK) love.graphics.draw(LOVE_POSTSHADER_BUFFER_BACK)
elseif shader == "chromatic" then end
-- Blur Shader
LOVE_POSTSHADER_CHROMATIC_ABERRATION:send("redStrength", {args[1] or 0.0, args[2] or 0.0}) if shader ~= "bloom" then
LOVE_POSTSHADER_CHROMATIC_ABERRATION:send("greenStrength", {args[3] or 0.0, args[4] or 0.0})
LOVE_POSTSHADER_CHROMATIC_ABERRATION:send("blueStrength", {args[5] or 0.0, args[6] or 0.0})
love.graphics.setCanvas(LOVE_POSTSHADER_BUFFER_BACK)
love.graphics.setBlendMode("alpha") love.graphics.setBlendMode("alpha")
love.graphics.setShader(LOVE_POSTSHADER_CHROMATIC_ABERRATION)
love.graphics.draw(LOVE_POSTSHADER_BUFFER_RENDER)
love.graphics.setCanvas(LOVE_POSTSHADER_LAST_BUFFER) love.graphics.setCanvas(LOVE_POSTSHADER_LAST_BUFFER)
love.graphics.setShader() love.graphics.setShader()
love.graphics.setColor(255, 255, 255) love.graphics.setColor(255, 255, 255)

8
shader/four_colors.glsl Normal file
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@ -0,0 +1,8 @@
extern vec3 palette[4];
vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords){
vec4 pixel = Texel(texture, texture_coords);
int index = int(min(0.9999, max(0.0001,(pixel.r + pixel.g + pixel.b) / 3.0)) * 4);
return vec4(palette[index], 1.0);
}

11
shader/monochrom.glsl Normal file
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@ -0,0 +1,11 @@
extern float time = 0.0;
float rand(vec2 position, float seed) {
return fract(sin(dot(position.xy,vec2(12.9898, 78.233))) * seed);
}
vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords){
vec4 pixel = Texel(texture, texture_coords);
return vec4(vec3((pixel.r + pixel.g + pixel.b) / 3.0) + (rand(texture_coords, time) - 0.5) * 0.1, 1.0);
}

View File

@ -1,6 +1,6 @@
#define PI 3.1415926535897932384626433832795 #define PI 3.1415926535897932384626433832795
extern vec2 lightPosition; extern vec3 lightPosition;
extern vec3 lightColor; extern vec3 lightColor;
extern float lightRange; extern float lightRange;
extern float lightSmooth; extern float lightSmooth;
@ -10,7 +10,7 @@ extern float lightAngle;
vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords){ vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords){
vec4 pixel = Texel(texture, texture_coords); vec4 pixel = Texel(texture, texture_coords);
vec2 lightToPixel = pixel_coords - lightPosition; vec3 lightToPixel = vec3(pixel_coords.x, pixel_coords.y, 0.0) - lightPosition;
float distance = length(lightToPixel); float distance = length(lightToPixel);
float att = 1 - distance / lightRange; float att = 1 - distance / lightRange;

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@ -6,9 +6,9 @@ extern float refractionStrength = 1.0;
vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords) { vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords) {
vec2 pSize = vec2(1.0 / screen.x, 1.0 / screen.y); vec2 pSize = vec2(1.0 / screen.x, 1.0 / screen.y);
vec4 normal = Texel(texture, texture_coords); vec4 normal = Texel(texture, texture_coords);
if(normal.a > 0.0) { if(normal.b > 0.0) {
vec4 normalOffset = Texel(texture, vec2(texture_coords.x + (normal.x - 0.5) * pSize.x * refractionStrength, texture_coords.y + (normal.y - 0.5) * pSize.y * refractionStrength)); vec4 normalOffset = Texel(texture, vec2(texture_coords.x + (normal.x - 0.5) * pSize.x * refractionStrength, texture_coords.y + (normal.y - 0.5) * pSize.y * refractionStrength));
if(normalOffset.a > 0.0) { if(normalOffset.b > 0.0) {
return Texel(backBuffer, vec2(texture_coords.x + (normal.x - 0.5) * pSize.x * refractionStrength, texture_coords.y + (normal.y - 0.5) * pSize.y * refractionStrength)); return Texel(backBuffer, vec2(texture_coords.x + (normal.x - 0.5) * pSize.x * refractionStrength, texture_coords.y + (normal.y - 0.5) * pSize.y * refractionStrength));
} else { } else {
return Texel(backBuffer, texture_coords); return Texel(backBuffer, texture_coords);

31
shader/scanlines.glsl Normal file
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@ -0,0 +1,31 @@
extern vec2 screenHeight = vec2(800.0, 600.0);
extern float time = 0.0;
vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords){
vec2 pSize = 1.0 / screenHeight;
float brightness = 1.0;
float offsetX = sin(texture_coords.y * 10.0 + time * 2.0) * pSize.x;
if(texture_coords.x < 0.5) {
if(texture_coords.y < 0.5) {
brightness = min(texture_coords.x * texture_coords.y * 100.0, 1.0);
} else {
brightness = min(texture_coords.x * (1.0 - texture_coords.y) * 100.0, 1.0);
}
} else {
if(texture_coords.y < 0.5) {
brightness = min((1.0 - texture_coords.x) * texture_coords.y * 100.0, 1.0);
} else {
brightness = min((1.0 - texture_coords.x) * (1.0 - texture_coords.y) * 100.0, 1.0);
}
}
float red = Texel(texture, vec2(texture_coords.x + offsetX, texture_coords.y + pSize.y * 0.5)).r;
float green = Texel(texture, vec2(texture_coords.x + offsetX, texture_coords.y - pSize.y * 0.5)).g;
float blue = Texel(texture, vec2(texture_coords.x + offsetX, texture_coords.y)).b;
if(mod(texture_coords.y * screenHeight.y, 2.0) > 0.5) {
return vec4(vec3(red, green, blue) * brightness, 1.0);
} else {
return vec4(vec3(red * 0.75, green * 0.75, blue * 0.75) * brightness, 1.0);
}
}

12
shader/tilt_shift.glsl Normal file
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@ -0,0 +1,12 @@
extern Image buffer;
vec4 effect(vec4 color, Image texture, vec2 texture_coords, vec2 pixel_coords){
vec4 pixel = Texel(texture, texture_coords);
vec4 pixel2 = Texel(buffer, texture_coords);
if(texture_coords.y > 0.5) {
return vec4(pixel.rgb * (texture_coords.y - 0.5) * 2.0 + pixel2.rgb * (1.0 - texture_coords.y) * 2.0, 1.0);
} else {
return vec4(pixel.rgb * (0.5 - texture_coords.y) * 2.0 + pixel2.rgb * texture_coords.y * 2.0, 1.0);
}
}