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Diffstat (limited to 'Studio/Content/Effect Library/Tilt Shift.effect')
| -rw-r--r-- | Studio/Content/Effect Library/Tilt Shift.effect | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/Studio/Content/Effect Library/Tilt Shift.effect b/Studio/Content/Effect Library/Tilt Shift.effect new file mode 100644 index 0000000..ddd9f60 --- /dev/null +++ b/Studio/Content/Effect Library/Tilt Shift.effect @@ -0,0 +1,111 @@ +<?xml version="1.0" encoding="UTF-8" ?> +<Effect> + <MetaData> + <Property name="FocusPos" formalName="Focus Position" description="Height of the focus bar in\nnormalized coordinates" min="0" max="1" default=".5"/> + <Property name="FocusWidth" formalName="Focus Width" description="Objects within this range of Focus Distance\nwill be in focus" min="0" max="1" default=".2"/> + <Property name="BlurDebug" formalName="Debug Rendering" type="Boolean" description="Allows you to see exactly how the Focus\nvariables work. Black objects are in\nfocus, white are blurred" default="False"/> + <Property name="BlurAmount" formalName="Blur Amount" description="Increase the amount of blur. Amounts\nabove 4 may cause artifacts" min="0" max="10" default="4" /> + <Property name="SourceSampler" type="Texture" filter="linear" clamp="clamp"/> + <Property name="VerticalEffect" formalName="Vertical" type='Boolean' description="Makes the effect work vertically\ninstead of horizontally" default="False"/> + <Property name="InvertBlur" formalName="Invert Blur" type="Boolean" description="Inverts the blur area so the center\nis blurred vs. the outer" default="False"/> + </MetaData> + <Shaders> + <Shared> +#include "blur.glsllib" + +float AdvancedGetTiltShiftMultiplier(vec2 inTexCoord, float inFocusBarHeight, float inFocusWidth, bool inVertical, bool inInvert ) +{ + //For now, you can't rotate the focus blur but in time you will be able to. + float texPos = inVertical ? inTexCoord.x : inTexCoord.y; + float focusDiff = max( 0.0, abs( texPos - inFocusBarHeight ) - (inFocusWidth/2.0) ) / inFocusWidth; + float retval = clamp( focusDiff, 0.0, 1.0 ); + return inInvert ? 1.0 - retval : retval; +} + + </Shared> + <Shader name="DOWNSAMPLE"> + <VertexShader> +void vert() +{ + SetupBoxBlurCoords(vec2(Texture0Info.xy)); +} + </VertexShader> + <FragmentShader> + +vec4 AdvancedBoxTiltShiftBlur( sampler2D inBlurSampler, float inBlurSamplerAlphaFlag + , float inFocusBarHeight, float inFocusWidth + , bool inVertical, bool inInvert ) +{ + float mult0 = .25 * AdvancedGetTiltShiftMultiplier( TexCoord0, inFocusBarHeight, inFocusWidth, inVertical, inInvert ); + float mult1 = .25 * AdvancedGetTiltShiftMultiplier( TexCoord1, inFocusBarHeight, inFocusWidth, inVertical, inInvert ); + float mult2 = .25 * AdvancedGetTiltShiftMultiplier( TexCoord2, inFocusBarHeight, inFocusWidth, inVertical, inInvert ); + float mult3 = .25 * AdvancedGetTiltShiftMultiplier( TexCoord3, inFocusBarHeight, inFocusWidth, inVertical, inInvert ); + float multTotal = mult0 + mult1 + mult2 + mult3; + float totalDivisor = multTotal != 0.0 ? 1.0 / multTotal : 0.0; + vec4 OutCol = GetTextureValuePreMult(inBlurSampler, TexCoord0) * mult0; + OutCol += GetTextureValuePreMult(inBlurSampler, TexCoord1) * mult1; + OutCol += GetTextureValuePreMult(inBlurSampler, TexCoord2) * mult2; + OutCol += GetTextureValuePreMult(inBlurSampler, TexCoord3) * mult3; + return OutCol * totalDivisor; +} +void frag() // Simple averaging box blur. +{ + gl_FragColor = AdvancedBoxTiltShiftBlur(Texture0, Texture0Info.z, FocusPos, FocusWidth, VerticalEffect, InvertBlur ); +} + </FragmentShader> + </Shader> + <Shader name="BLUR"> + <VertexShader> + +void vert() +{ + SetupPoissonBlurCoords( BlurAmount, DestSize.xy ); +} + + </VertexShader> + <FragmentShader> + +vec4 AdvancedPoissonTiltShiftBlur(sampler2D inSampler, float inAlphaFlag, float inBarHeight, float inFocusWidth, bool inVertical, bool inInvert ) +{ + float mult0 = (1.0 - poisson0.z) * AdvancedGetTiltShiftMultiplier( TexCoord0, inBarHeight, inFocusWidth, inVertical, inInvert ); + float mult1 = (1.0 - poisson1.z) * AdvancedGetTiltShiftMultiplier( TexCoord1, inBarHeight, inFocusWidth, inVertical, inInvert ); + float mult2 = (1.0 - poisson2.z) * AdvancedGetTiltShiftMultiplier( TexCoord2, inBarHeight, inFocusWidth, inVertical, inInvert ); + float mult3 = (1.0 - poisson3.z) * AdvancedGetTiltShiftMultiplier( TexCoord3, inBarHeight, inFocusWidth, inVertical, inInvert ); + float mult4 = (1.0 - poisson4.z) * AdvancedGetTiltShiftMultiplier( TexCoord4, inBarHeight, inFocusWidth, inVertical, inInvert ); + + float multTotal = mult0 + mult1 + mult2 + mult3 + mult4; + float multMultiplier = multTotal > 0.0 ? 1.0 / multTotal : 0.0; + + vec4 outColor = GetTextureValuePreMult( inSampler, TexCoord0 ) * (mult0 * multMultiplier); + outColor += GetTextureValuePreMult( inSampler, TexCoord1 ) * (mult1 * multMultiplier); + outColor += GetTextureValuePreMult( inSampler, TexCoord2 ) * (mult2 * multMultiplier); + outColor += GetTextureValuePreMult( inSampler, TexCoord3 ) * (mult3 * multMultiplier); + outColor += GetTextureValuePreMult( inSampler, TexCoord4 ) * (mult4 * multMultiplier); + return outColor; +} + +void frag() // Mix the input blur and the depth texture with the sprite +{ + float centerMultiplier = AdvancedGetTiltShiftMultiplier( TexCoord, FocusPos, FocusWidth, VerticalEffect, InvertBlur ); + if ( BlurDebug ) + { + gl_FragColor = vec4( centerMultiplier,centerMultiplier,centerMultiplier, 1.0 ); + } + else + { + vec4 blurColor = AdvancedPoissonTiltShiftBlur(Texture0, Texture0Info.z, FocusPos, FocusWidth, VerticalEffect, InvertBlur ); + gl_FragColor = mix( texture2D_SourceSampler(TexCoord), blurColor, centerMultiplier ); + } +} + </FragmentShader> + </Shader> + </Shaders> + <Passes> + <Buffer name="downsample_buffer" type="ubyte" format="rgba" filter="linear" wrap="clamp" size=".5" lifetime="frame"/> + <Pass shader="DOWNSAMPLE" input="[source]" output="downsample_buffer"/> + <Pass shader="BLUR" input="downsample_buffer"> + <BufferInput value="[source]" param="SourceSampler" /> + </Pass> + </Passes> +</Effect> + |