Difference between revisions of "Shader (CMS)"
From The Official Visionaire Studio: Adventure Game Engine Wiki
| Line 277: | Line 277: | ||
function shaderFollowCharacter(name, c_scale, delay) | function shaderFollowCharacter(name, c_scale, delay) | ||
| − | + | if name = "" then name = game:getLink(VGameCurrentCharacter):getName() end | |
| − | + | shader_follow.on = 1 | |
| − | + | shader_follow.name = name | |
| − | + | shader_follow.c_scale = c_scale | |
| + | shader_follow.delay = delay | ||
end | end | ||
Revision as of 17:50, 16 August 2014
| Name | Type | By |
|---|---|---|
| Shader Toolkit | Definition | SimonS |
This script offers some easy functions to use shader power. It ranges from blur, noise, saturation, contrast, lightness, colorize to some simple camera controls.
Contents
[hide]Instructions
1. Add the main script to the Visionaire Studio Script Editor & set the script as a definition script.
2. Call the functions you need.
Examples
shaderZoomCharacter("", 1.2, 3000, easeBackOut) -- Zoom 1.2x on current character in 3s with one bounce
shaderZoomObject(getObject("Objects[pole]"), 1.4, 3000, easeBounceOut)
shaderFollowCharacter("Heinz", 2, 3000) -- Follow character Heinz with a slow camera
shaderStopFollow() -- Stop following
shaderViewport(2, 300, 200, 1.41, 3000, easeBounceInOut) -- advanced zooming with rotating
shaderNoise(1, -0.1, 3000) -- activate noise in 3s with a soft black grain
shaderBlur(1, 1, 3000) -- activate blur in 3s
shaderSaturation(0, 3000) -- desaturate image in 3s
shaderLightness(-0.5, 3000) -- darken image in 3s
shaderContrast(2, 3000) -- double contrast
shaderHue(0.5, 2000) -- turn hue wheel, red->green
shaderColorize(0, 1, 3000) -- colorize with redReset Values
shaderViewport(1, 0, 0, 0, 1000, easeQuintOut)
shaderStopFollow() -- Stop following
shaderNoise(0, 0, 3000)
shaderBlur(0, 0, 3000)
shaderSaturation(1, 3000)
shaderLightness(0, 3000)
shaderContrast(1, 3000)
shaderHue(0, 3000)
shaderColorize(0, 0, 3000)Main Script
--
-- Shader Toolkit Hue, Saturation, Luminance, Blur, Noise, Camera Control
-- (c) 2014 Simon Scheckel, Visionaire Studio Engine - with edits by AFRLme
-- Version 0.71
--
-- Matrix functions from https://github.com/davidm/lua-matrix/blob/master/lua/matrix.lua
-- Developers: Michael Lutz (chillcode) - original author David Manura http://lua-users.org/wiki/DavidManura
--
-- Usage:
--
-- all factors like zoom, scale are normally 1 to have no change
-- delay in ms
-- hue in 0-1 (0 = red, 0.5 = cyan, 1 = red again)
--
-- easing functions: Back, Bounce, Circ, Cubic, Elastic, Linear, None, Quad, Quint, Sine, all In/Out/InOut
-- examples: easeBackOut, easeLinearIn, easeElasticInOut etc
-- More information about that: http://easings.net
--
-- shaderZoomCharacter(name, c_scale, delay, easing)
-- shaderZoomObject(object, c_scale, delay, easing)
-- shaderFollowCharacter(name, c_scale, delay)
-- shaderStopFollow()
-- shaderViewport(zoom, x, y, rotation, delay, easing) rotation in 0-2Pi (full turn)
-- shaderPan(offset, delay, easing, axis)
-- shaderRotate(degree, delay, easing) -- degree values 0 to 359 (automatically converts value to Pi)
-- shaderZoom(zoom, delay, easing)
-- on: 1 = on, 0 = off
--
-- shaderNoise(on, strength, delay) -- strength * noise + color, so strength < 0 creates black noise and > 0 white
-- shaderBlur(on, strength, delay) -- strength 0.8 to 1.4 recommended, programmed for 1
-- shaderSaturation(factor, delay)
-- shaderLightness(offset, delay)
-- shaderContrast(contrast, delay)
-- shaderHue(target, delay)
-- shaderColorize(hue, strength, delay)
--
-- shaderActivate()
-- shaderDeactivate()
--
-- Read no further if the word matrix multiplication frightens you
--
local matrix = {_TYPE='module', _NAME='matrix', _VERSION='0.2.11.20120416'}
local matrix_meta = {}
function matrix:new( rows, columns, value )
if type( rows ) == "table" then
if type(rows[1]) ~= "table" then
return setmetatable( {{rows[1]},{rows[2]},{rows[3]}},matrix_meta )
end
return setmetatable( rows,matrix_meta )
end
local mtx = {}
local value = value or 0
if columns == "I" then
for i = 1,rows do
mtx[i] = {}
for j = 1,rows do
if i == j then
mtx[i][j] = 1
else
mtx[i][j] = 0
end
end
end
else
for i = 1,rows do
mtx[i] = {}
for j = 1,columns do
mtx[i][j] = value
end
end
end
return setmetatable( mtx,matrix_meta )
end
function matrix.mul( m1, m2 )
local mtx = {}
for i = 1,#m1 do
mtx[i] = {}
for j = 1,#m2[1] do
local num = m1[i][1] * m2[1][j]
for n = 2,#m1[1] do
num = num + m1[i][n] * m2[n][j]
end
mtx[i][j] = num
end
end
return setmetatable( mtx, matrix_meta )
end
setmetatable( matrix, { __call = function( ... ) return matrix.new( ... ) end } )
-- End of matrix functions
function matrix.tofloat( m1 )
local mtx = {}
local pos = 1
for i = 1,#m1 do
for j = 1,#m1[1] do
mtx[pos] = m1[i][j]
pos=pos+1
end
end
return mtx
end
shader = {_temporary_=0, num = shaderCompile([[#ifdef GL_ES
precision lowp float;
precision lowp int;
#endif
varying vec2 texcoord;
uniform mat4 mvp_mat;
uniform mat4 cam_mat;
attribute vec2 position;
attribute vec2 uv;
uniform int pass;
void main ()
{
if(pass==0)
gl_Position = mvp_mat * (cam_mat * vec4(position.x,position.y,0.0,1.0));
else
gl_Position = mvp_mat * vec4(position.x,position.y,0.0,1.0);
texcoord = uv;
}]],[[#ifdef GL_ES
precision highp float;
precision lowp int;
#endif
uniform sampler2D composite;
uniform int pass;
uniform float noise;
uniform float noiseFactor;
uniform float iTime;
uniform vec4 weights;
uniform vec4 shader_coeff;
varying vec2 texcoord;
void identity() {
gl_FragColor = texture2D(composite, texcoord.st);
}
float rand(vec2 co){
return fract(sin(dot(co.xy ,vec2(12.9898,78.233))) * 43758.5453);
}
void blurFast(){
vec4 sum = vec4(0.0);
float blurSize=1.0/2048.0*(4.0-float(pass));
sum += texture2D(composite, vec2(texcoord.x - blurSize, texcoord.y - blurSize)) * weights[0];
sum += texture2D(composite, vec2(texcoord.x - blurSize, texcoord.y + blurSize)) * weights[0];
sum += texture2D(composite, vec2(texcoord.x, texcoord.y)) * weights[1];
sum += texture2D(composite, vec2(texcoord.x + blurSize, texcoord.y - blurSize)) * weights[0];
sum += texture2D(composite, vec2(texcoord.x + blurSize, texcoord.y + blurSize)) * weights[0];
gl_FragColor = sum;
}
vec3 rgb2hsv(vec3 c)
{
vec4 K = vec4(0.0, -1.0 / 3.0, 2.0 / 3.0, -1.0);
vec4 p = mix(vec4(c.bg, K.wz), vec4(c.gb, K.xy), step(c.b, c.g));
vec4 q = mix(vec4(p.xyw, c.r), vec4(c.r, p.yzx), step(p.x, c.r));
float d = q.x - min(q.w, q.y);
float e = 1.0e-10;
return vec3(abs(q.z + (q.w - q.y) / (6.0 * d + e)), d / (q.x + e), q.x);
}
vec3 hsv2rgb(vec3 c)
{
vec4 K = vec4(1.0, 2.0 / 3.0, 1.0 / 3.0, 3.0);
vec3 p = abs(fract(c.xxx + K.xyz) * 6.0 - K.www);
return c.z * mix(K.xxx, clamp(p - K.xxx, 0.0, 1.0), c.y);
}
void sat()
{
vec4 textureColor = texture2D(composite, texcoord.st);
vec3 fragRGB = textureColor.rgb;
vec3 fragHSV = rgb2hsv(fragRGB);
fragHSV.x += shader_coeff[0] ;
fragHSV.x = mix(fragHSV.x, weights[3], weights[2]);
fragHSV.y *= shader_coeff[1];
fragHSV.z = (fragHSV.z - 0.5)*shader_coeff[2]+0.5+shader_coeff[3];
fragRGB = hsv2rgb(fragHSV);
vec4 color = vec4(fragRGB, textureColor.w);
if(noise==1.0)
color+= noiseFactor*rand(texcoord.xy+vec2(iTime*2.0,0.0));
gl_FragColor=color;
}
void main()
{
if(pass==0)
sat();
else if(pass!=5)
blurFast();
else
identity();
}]])}
shader_coeff0=0
shader_coeff1=1
shader_coeff2=1
shader_coeff3=0
shader_mweight=1
shader_weight=0
shader_downsize=1
shader_colorize=0
shader_color=0
shader_iTime = 0
shader_noise=0
shader_noiseStrength=0
shader_passes=2
shader_rotate=0.0
shader_scale = 1.0
shader_offsetx = 0.0
shader_offsety = 0.0
shader_noise = 0.0
shader_follow = {on=0, name="", c_scale=1, easing = easeQuintOut, delay = 0}
c_res=game:getPoint(VGameWindowResolution)
shaderSetOptions("active",shader.num)
shaderSetOptions("downsize",1)
shaderSetOptions("passes",2)
shaderUniform("weights",{shader_weight,shader_mweight,shader_colorize,shader_color})
shaderUniform("shader_coeff",{shader_coeff0,shader_coeff1,shader_coeff2,shader_coeff3})
function shaderStopFollow()
shader_follow.on = 0
end
function shaderFollowCharacter(name, c_scale, delay)
if name = "" then name = game:getLink(VGameCurrentCharacter):getName() end
shader_follow.on = 1
shader_follow.name = name
shader_follow.c_scale = c_scale
shader_follow.delay = delay
end
function shaderZoomCharacter(name, c_scale, delay, easing)
local c_position={}
if(name=="")then
c_position=game:getLink(VGameCurrentCharacter):getPoint(VCharacterPosition)
else
c_position=getObject("Characters["..name.."]"):getPoint(VCharacterPosition)
end
local c_scroll=game:getPoint(VGameScrollPosition)
c_position.x=c_position.x-c_scroll.x
c_position.y=c_position.y-c_scroll.y
c_position.x=c_position.x-(c_res.x/c_scale/2)
c_position.y=c_position.y-(c_res.y/c_scale/1.2)
shaderViewport(c_scale, c_position.x, c_position.y, 0, delay, easing)
end
function shaderZoomObject(object, c_scale, delay, easing)
local c_position={}
c_position=object:getPoint(VObjectPosition)
local c_scroll=game:getPoint(VGameScrollPosition)
c_position.x=c_position.x-c_scroll.x
c_position.y=c_position.y-c_scroll.y
c_position.x=c_position.x-(c_res.x/c_scale/2)
c_position.y=c_position.y-(c_res.y/c_scale/1.2)
shaderViewport(c_scale, c_position.x, c_position.y, 0, delay, easing)
end
function shaderNoise(on, strength,delay)
shaderUniform("noise",on)
startTween("shader_noiseStrength", shader_noiseStrength, strength, delay,easeLinearInOut)
shader_noise=on
end
function shaderBlur(on, strength, delay)
if(on==1)then
startTween("shader_mweight",shader_mweight,0.4/strength/strength, delay,easeBackInOut)
startTween("shader_weight", shader_weight, 0.15*strength, delay,easeBackInOut)
startTween("shader_downsize", shader_downsize, 4*strength, delay, easeLinearInOut)
shader_passes=6
else
startTween("shader_mweight",shader_mweight,1, delay,easeBackInOut)
startTween("shader_weight", shader_weight, 0, delay,easeBackInOut)
startTween("shader_downsize", shader_downsize, 1, delay, easeLinearInOut)
startTween("shader_passes", shader_passes, 2, delay, easeNoneInOut)
end
end
function shaderSaturation(factor, delay)
startTween("shader_coeff1",shader_coeff1,factor,delay,easeLinearInOut)
end
function shaderLightness(offset, delay)
startTween("shader_coeff3",shader_coeff3,offset,delay,easeLinearInOut)
end
function shaderContrast(contrast, delay)
startTween("shader_coeff2",shader_coeff2,contrast,delay,easeLinearInOut)
end
function shaderHue(target, delay)
startTween("shader_coeff0",shader_coeff0,target,delay,easeLinearInOut)
end
function shaderColorize(hue, strength, delay)
startTween("shader_colorize",shader_colorize,strength,delay,easeLinearIn)
shader_color=hue
end
function shaderViewport(zoom, x, y, rotation, delay, easing)
startTween("shader_offsetx", shader_offsetx, x, delay,easing)
startTween("shader_offsety", shader_offsety, y, delay,easing)
startTween("shader_scale", shader_scale, zoom, delay,easing)
startTween("shader_rotate", shader_rotate, rotation, delay,easing)
end
-- * allows you to pan the camera left or right * --
function shaderPan(offset, delay, easing, axis)
if axis then startTween("shader_offsety", shader_offsety, offset, delay, easing) else startTween("shader_offsetx", shader_offsetx, offset, delay,easing) end
end
-- * allows you to zoom the camera in or out * --
function shaderZoom(zoom, delay, easing)
startTween("shader_scale", shader_scale, zoom, delay, easing)
end
-- * allows you to rotate the screen (w/ degree instead of pi) * --
function shaderRotate(degree, delay, easing)
degree = (degree / 360 * 2 * 3.14) -- convert degree to pi
startTween("shader_rotate", shader_rotate, degree, delay, easing)
end
function shaderActivate()
shaderSetOptions("active",shader.num)
end
function shaderDeactivate()
shaderSetOptions("active",0)
end
function shaderMain()
shader_iTime=shader_iTime+0.0166
if(shader_iTime>1)then
shader_iTime=0
end
shaderUniform("iTime",shader_iTime*0.1)
shaderUniform("noiseFactor",shader_noiseStrength)
shaderUniform("weights",{shader_weight,shader_mweight,shader_colorize,shader_color})
shaderUniform("shader_coeff",{shader_coeff0,shader_coeff1,shader_coeff2,shader_coeff3})
shaderSetOptions("downsize",shader_downsize)
shaderSetOptions("passes",shader_passes)
if(shader_follow.on==1)then
shaderZoomCharacter(shader_follow.name, shader_follow.c_scale, shader_follow.delay, shader_follow.easing)
end
local rot = matrix{{math.cos(shader_rotate),math.sin(shader_rotate),0,0},{-math.sin(shader_rotate),math.cos(shader_rotate),0,0},{0,0,1,0},{0,0,0,1}}
local scale = matrix{{shader_scale,0,0,0},{0,shader_scale,0,0},{0,0,1,0},{0,0,0,1}}
local translate = matrix{{1,0,0,0},{0,1,0,0},{0,0,1,0},{-c_res.x/2,-c_res.y/2,0,1}}
local translate2 = matrix{{1,0,0,0},{0,1,0,0},{0,0,1,0},{c_res.x/2,c_res.y/2,0,1}}
local translate3 = matrix{{1,0,0,0},{0,1,0,0},{0,0,1,0},{-shader_offsetx/shader_downsize,-shader_offsety/shader_downsize,0,1}}
shaderUniform("cam_mat",matrix.tofloat(matrix.mul(matrix.mul(matrix.mul(matrix.mul(translate,rot),translate2),translate3),scale)))
end
registerEventHandler("mainLoop", "shaderMain")
shaderMain()