mirror of
https://github.com/X0nk/Bliss-Shader.git
synced 2024-12-23 01:59:39 +08:00
438 lines
16 KiB
GLSL
438 lines
16 KiB
GLSL
#include "/lib/settings.glsl"
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#include "/lib/res_params.glsl"
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/*
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const int colortex0Format = RGBA16F; // low res clouds (deferred->composite2) + low res VL (composite5->composite15)
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const int colortex1Format = RGBA16; // terrain gbuffer (gbuffer->composite2)
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const int colortex2Format = RGBA16F; // forward + transparencies (gbuffer->composite4)
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const int colortex3Format = R11F_G11F_B10F; // frame buffer + bloom (deferred6->final)
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const int colortex4Format = RGBA16F; // light values and skyboxes (everything)
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const int colortex6Format = R11F_G11F_B10F; // additionnal buffer for bloom (composite3->final)
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const int colortex7Format = RGBA8; // Final output, transparencies id (gbuffer->composite4)
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const int colortex8Format = RGBA8; // Specular Texture
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const int colortex9Format = RGBA8; // rain in alpha
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const int colortex10Format = RGBA16; // resourcepack Skies
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const int colortex11Format = RGBA16; // unchanged translucents albedo, alpha and tangent normals
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const int colortex12Format = RGBA16F; // DISTANT HORIZONS + VANILLA MIXED DEPTHs
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const int colortex13Format = RGBA16F; // low res VL (composite5->composite15)
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const int colortex14Format = RGBA16; // rg = SSAO and SS-SSS. a = skylightmap for translucents.
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const int colortex15Format = RGBA8; // flat normals and vanilla AO
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*/
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//no need to clear the buffers, saves a few fps
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const bool colortex0Clear = false;
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const bool colortex1Clear = false;
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const bool colortex2Clear = true;
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const bool colortex3Clear = false;
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const bool colortex4Clear = false;
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const bool colortex5Clear = false;
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const bool colortex6Clear = false;
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const bool colortex7Clear = false;
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const bool colortex8Clear = false;
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const bool colortex9Clear = true;
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const bool colortex10Clear = true;
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const bool colortex11Clear = true;
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const bool colortex12Clear = false;
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const bool colortex13Clear = false;
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const bool colortex14Clear = true;
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const bool colortex15Clear = false;
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#ifdef SCREENSHOT_MODE
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/*
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const int colortex5Format = RGBA32F;// TAA buffer (everything)
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*/
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#else
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/*
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const int colortex5Format = R11F_G11F_B10F; // TAA buffer (everything)
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*/
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#endif
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varying vec2 texcoord;
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flat varying float tempOffsets;
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uniform sampler2D colortex0;
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uniform sampler2D colortex1;
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uniform sampler2D colortex3;
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uniform sampler2D colortex5;
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uniform sampler2D colortex6;
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uniform sampler2D colortex10;
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uniform sampler2D colortex12;
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uniform sampler2D colortex14;
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uniform sampler2D depthtex0;
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uniform sampler2D depthtex1;
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uniform vec2 texelSize;
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uniform float frameTimeCounter;
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uniform float viewHeight;
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uniform float viewWidth;
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uniform vec3 previousCameraPosition;
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uniform mat4 gbufferPreviousModelView;
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uniform int hideGUI;
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#ifdef DAMAGE_TAKEN_EFFECT
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uniform float CriticalDamageTaken;
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#endif
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#include "/lib/util.glsl"
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#include "/lib/projections.glsl"
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uniform int framemod8;
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#include "/lib/TAA_jitter.glsl"
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vec2 decodeVec2(float a){
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const vec2 constant1 = 65535. / vec2( 256., 65536.);
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const float constant2 = 256. / 255.;
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return fract( a * constant1 ) * constant2 ;
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}
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float luma(vec3 color) {
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return dot(color,vec3(0.21, 0.72, 0.07));
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}
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float interleaved_gradientNoise(){
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return fract(52.9829189*fract(0.06711056*gl_FragCoord.x + 0.00583715*gl_FragCoord.y)+tempOffsets);
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}
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float triangularize(float dither)
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{
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float center = dither*2.0-1.0;
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dither = center*inversesqrt(abs(center));
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return clamp(dither-fsign(center),0.0,1.0);
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}
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vec4 fp10Dither(vec4 color ,float dither){
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const vec3 mantissaBits = vec3(6.,6.,5.);
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vec3 exponent = floor(log2(color.rgb));
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return vec4(color.rgb + dither*exp2(-mantissaBits)*exp2(exponent), color.a);
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}
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vec3 toClipSpace3Prev(vec3 viewSpacePosition) {
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return projMAD(gbufferPreviousProjection, viewSpacePosition) / -viewSpacePosition.z * 0.5 + 0.5;
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}
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vec3 tonemap(vec3 col){
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return col/(1+luma(col));
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}
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vec3 invTonemap(vec3 col){
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return col/(1-luma(col));
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}
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void convertHandDepth(inout float depth) {
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float ndcDepth = depth * 2.0 - 1.0;
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ndcDepth /= MC_HAND_DEPTH;
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depth = ndcDepth * 0.5 + 0.5;
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}
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float convertHandDepth2( float depth) {
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float ndcDepth = depth * 2.0 - 1.0;
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ndcDepth /= MC_HAND_DEPTH;
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return ndcDepth * 0.5 + 0.5;
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}
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#ifdef DISTANT_HORIZONS
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uniform sampler2D dhDepthTex;
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#endif
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uniform float near;
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uniform float far;
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uniform float dhFarPlane;
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uniform float dhNearPlane;
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#include "/lib/DistantHorizons_projections.glsl"
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float ld(float dist) {
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return (2.0 * near) / (far + near - dist * (far - near));
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}
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float DH_ld(float dist) {
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return (2.0 * dhNearPlane) / (dhFarPlane + dhNearPlane - dist * (dhFarPlane - dhNearPlane));
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}
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float DH_inv_ld (float lindepth){
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return -((2.0*dhNearPlane/lindepth)-dhFarPlane-dhNearPlane)/(dhFarPlane-dhNearPlane);
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}
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float linearizeDepthFast(const in float depth, const in float near, const in float far) {
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return (near * far) / (depth * (near - far) + far);
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}
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float invertlinearDepthFast(const in float depth, const in float near, const in float far) {
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return ((2.0*near/depth)-far-near)/(far-near);
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}
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vec3 toClipSpace3Prev_DH( vec3 viewSpacePosition, bool depthCheck ) {
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#ifdef DISTANT_HORIZONS
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mat4 projectionMatrix = depthCheck ? dhPreviousProjection : gbufferPreviousProjection;
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return projMAD(projectionMatrix, viewSpacePosition) / -viewSpacePosition.z * 0.5 + 0.5;
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#else
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return projMAD(gbufferPreviousProjection, viewSpacePosition) / -viewSpacePosition.z * 0.5 + 0.5;
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#endif
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}
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vec3 toScreenSpace_DH_special(vec3 POS, bool depthCheck ) {
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vec4 viewPos = vec4(0.0);
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vec3 feetPlayerPos = vec3(0.0);
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vec4 iProjDiag = vec4(0.0);
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#ifdef DISTANT_HORIZONS
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if (depthCheck) {
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iProjDiag = vec4(dhProjectionInverse[0].x, dhProjectionInverse[1].y, dhProjectionInverse[2].zw);
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feetPlayerPos = POS * 2.0 - 1.0;
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viewPos = iProjDiag * feetPlayerPos.xyzz + dhProjectionInverse[3];
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viewPos.xyz /= viewPos.w;
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} else {
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#endif
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iProjDiag = vec4(gbufferProjectionInverse[0].x, gbufferProjectionInverse[1].y, gbufferProjectionInverse[2].zw);
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feetPlayerPos = POS * 2.0 - 1.0;
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viewPos = iProjDiag * feetPlayerPos.xyzz + gbufferProjectionInverse[3];
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viewPos.xyz /= viewPos.w;
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#ifdef DISTANT_HORIZONS
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}
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#endif
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return viewPos.xyz;
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}
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//Modified texture interpolation from inigo quilez
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vec4 smoothfilter(in sampler2D tex, in vec2 uv)
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{
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vec2 textureResolution = vec2(viewWidth,viewHeight);
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uv = uv*textureResolution + 0.5;
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vec2 iuv = floor( uv );
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vec2 fuv = fract( uv );
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#ifndef SMOOTHESTSTEP_INTERPOLATION
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uv = iuv + (fuv*fuv)*(3.0-2.0*fuv);
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#endif
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#ifdef SMOOTHESTSTEP_INTERPOLATION
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uv = iuv + fuv*fuv*fuv*(fuv*(fuv*6.0-15.0)+10.0);
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#endif
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uv = (uv - 0.5)/textureResolution;
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return texture2D(tex, uv);
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}
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//approximation from SMAA presentation from siggraph 2016
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vec3 FastCatmulRom(sampler2D colorTex, vec2 texcoord, vec4 rtMetrics, float sharpenAmount)
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{
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vec2 position = rtMetrics.zw * texcoord;
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vec2 centerPosition = floor(position - 0.5) + 0.5;
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vec2 f = position - centerPosition;
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vec2 f2 = f * f;
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vec2 f3 = f * f2;
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float c = sharpenAmount;
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vec2 w0 = -c * f3 + 2.0 * c * f2 - c * f;
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vec2 w1 = (2.0 - c) * f3 - (3.0 - c) * f2 + 1.0;
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vec2 w2 = -(2.0 - c) * f3 + (3.0 - 2.0 * c) * f2 + c * f;
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vec2 w3 = c * f3 - c * f2;
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vec2 w12 = w1 + w2;
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vec2 tc12 = rtMetrics.xy * (centerPosition + w2 / w12);
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vec3 centerColor = texture2D(colorTex, vec2(tc12.x, tc12.y)).rgb;
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vec2 tc0 = rtMetrics.xy * (centerPosition - 1.0);
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vec2 tc3 = rtMetrics.xy * (centerPosition + 2.0);
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vec4 color = vec4(texture2D(colorTex, vec2(tc12.x, tc0.y )).rgb, 1.0) * (w12.x * w0.y ) +
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vec4(texture2D(colorTex, vec2(tc0.x, tc12.y)).rgb, 1.0) * (w0.x * w12.y) +
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vec4(centerColor, 1.0) * (w12.x * w12.y) +
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vec4(texture2D(colorTex, vec2(tc3.x, tc12.y)).rgb, 1.0) * (w3.x * w12.y) +
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vec4(texture2D(colorTex, vec2(tc12.x, tc3.y )).rgb, 1.0) * (w12.x * w3.y );
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return color.rgb/color.a;
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}
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vec3 closestToCamera5taps(vec2 texcoord, sampler2D depth, bool hand)
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{
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vec2 du = vec2(texelSize.x*2., 0.0);
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vec2 dv = vec2(0.0, texelSize.y*2.);
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vec3 dtl = vec3(texcoord,0.) + vec3(-texelSize, texture2D(depth, texcoord - dv - du).x);
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vec3 dtr = vec3(texcoord,0.) + vec3( texelSize.x, -texelSize.y, texture2D(depth, texcoord - dv + du).x);
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vec3 dmc = vec3(texcoord,0.) + vec3( 0.0, 0.0, texture2D(depth, texcoord).x);
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vec3 dbl = vec3(texcoord,0.) + vec3(-texelSize.x, texelSize.y, texture2D(depth, texcoord + dv - du).x);
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vec3 dbr = vec3(texcoord,0.) + vec3( texelSize.x, texelSize.y, texture2D(depth, texcoord + dv + du).x);
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if(hand){
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convertHandDepth(dtl.z);
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convertHandDepth(dtr.z);
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convertHandDepth(dmc.z);
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convertHandDepth(dbl.z);
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convertHandDepth(dbr.z);
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}
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vec3 dmin = dmc;
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dmin = dmin.z > dtr.z ? dtr : dmin;
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dmin = dmin.z > dtl.z ? dtl : dmin;
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dmin = dmin.z > dbl.z ? dbl : dmin;
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dmin = dmin.z > dbr.z ? dbr : dmin;
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#ifdef TAA_UPSCALING
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dmin.xy = dmin.xy/RENDER_SCALE;
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#endif
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return dmin;
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}
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vec3 closestToCamera5taps_DH(vec2 texcoord, sampler2D depth, sampler2D dhDepth, bool depthCheck, bool hand)
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{
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vec2 du = vec2(texelSize.x*2., 0.0);
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vec2 dv = vec2(0.0, texelSize.y*2.);
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vec3 dtl = vec3(texcoord,0.);
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vec3 dtr = vec3(texcoord,0.);
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vec3 dmc = vec3(texcoord,0.);
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vec3 dbl = vec3(texcoord,0.);
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vec3 dbr = vec3(texcoord,0.);
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dtl += vec3(-texelSize, depthCheck ? texture2D(dhDepth, texcoord - dv - du).x : texture2D(depth, texcoord - dv - du).x);
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dtr += vec3( texelSize.x, -texelSize.y, depthCheck ? texture2D(dhDepth, texcoord - dv + du).x : texture2D(depth, texcoord - dv + du).x);
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dmc += vec3( 0.0, 0.0, depthCheck ? texture2D(dhDepth, texcoord).x : texture2D(depth, texcoord).x);
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dbl += vec3(-texelSize.x, texelSize.y, depthCheck ? texture2D(dhDepth, texcoord + dv - du).x : texture2D(depth, texcoord + dv - du).x);
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dbr += vec3( texelSize.x, texelSize.y, depthCheck ? texture2D(dhDepth, texcoord + dv + du).x : texture2D(depth, texcoord + dv + du).x);
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if(hand){
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convertHandDepth(dtl.z);
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convertHandDepth(dtr.z);
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convertHandDepth(dmc.z);
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convertHandDepth(dbl.z);
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convertHandDepth(dbr.z);
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}
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vec3 dmin = dmc;
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dmin = dmin.z > dtr.z ? dtr : dmin;
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dmin = dmin.z > dtl.z ? dtl : dmin;
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dmin = dmin.z > dbl.z ? dbl : dmin;
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dmin = dmin.z > dbr.z ? dbr : dmin;
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#ifdef TAA_UPSCALING
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dmin.xy = dmin.xy/RENDER_SCALE;
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#endif
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return dmin;
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}
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vec4 computeTAA(vec2 texcoord, bool hand){
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vec2 jitter = offsets[framemod8]*texelSize*0.5;
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vec2 adjTC = clamp(texcoord*RENDER_SCALE, vec2(0.0), RENDER_SCALE - texelSize*2.0);
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// get previous frames position stuff for UV
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//use velocity from the nearest texel from camera in a 3x3 box in order to improve edge quality in motion
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#ifdef DISTANT_HORIZONS
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bool depthCheck = texture2D(depthtex0,adjTC).x >= 1.0;
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vec3 closestToCamera = closestToCamera5taps_DH(adjTC, depthtex0, dhDepthTex, depthCheck, hand);
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vec3 viewPos = toScreenSpace_DH_special(closestToCamera, depthCheck);
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#else
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vec3 closestToCamera = closestToCamera5taps(adjTC, depthtex0, hand);
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vec3 viewPos = toScreenSpace(closestToCamera);
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#endif
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vec3 playerPos = mat3(gbufferModelViewInverse) * viewPos + gbufferModelViewInverse[3].xyz + (cameraPosition - previousCameraPosition);
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vec3 previousPosition = mat3(gbufferPreviousModelView) * playerPos + gbufferPreviousModelView[3].xyz;
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#ifdef DISTANT_HORIZONS
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previousPosition = toClipSpace3Prev_DH(previousPosition, depthCheck);
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#else
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previousPosition = toClipSpace3Prev(previousPosition);
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#endif
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vec2 velocity = previousPosition.xy - closestToCamera.xy;
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previousPosition.xy = texcoord + velocity;
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// sample current frame, and make sure it is de-jittered
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vec3 currentFrame = smoothfilter(colortex3, adjTC + jitter).rgb;
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//reject history if off-screen and early exit
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if (previousPosition.x < 0.0 || previousPosition.y < 0.0 || previousPosition.x > 1.0 || previousPosition.y > 1.0) return vec4(currentFrame, 1.0);
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#ifdef TAA_UPSCALING
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// Interpolating neighboorhood clampling boundaries between pixels
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vec3 colMax = texture2D(colortex0, adjTC).rgb;
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vec3 colMin = texture2D(colortex6, adjTC).rgb;
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#else
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//Assuming the history color is a blend of the 3x3 neighborhood, we clamp the history to the min and max of each channel in the 3x3 neighborhood
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vec3 col0 = currentFrame; // can use this because its the center sample.
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vec3 col1 = texture2D(colortex3, adjTC + vec2( texelSize.x, texelSize.y)).rgb;
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vec3 col2 = texture2D(colortex3, adjTC + vec2( texelSize.x, -texelSize.y)).rgb;
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vec3 col3 = texture2D(colortex3, adjTC + vec2(-texelSize.x, -texelSize.y)).rgb;
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vec3 col4 = texture2D(colortex3, adjTC + vec2(-texelSize.x, texelSize.y)).rgb;
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vec3 col5 = texture2D(colortex3, adjTC + vec2( 0.0, texelSize.y)).rgb;
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vec3 col6 = texture2D(colortex3, adjTC + vec2( 0.0, -texelSize.y)).rgb;
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vec3 col7 = texture2D(colortex3, adjTC + vec2(-texelSize.x, 0.0)).rgb;
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vec3 col8 = texture2D(colortex3, adjTC + vec2( texelSize.x, 0.0)).rgb;
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vec3 colMax = max(col0,max(col1,max(col2,max(col3, max(col4, max(col5, max(col6, max(col7, col8))))))));
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vec3 colMin = min(col0,min(col1,min(col2,min(col3, min(col4, min(col5, min(col6, min(col7, col8))))))));
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vec3 colMax5 = max(col0,max(col5,max(col6,max(col7,col8))));
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vec3 colMin5 = min(col0,min(col5,min(col6,min(col7,col8))));
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colMin = 0.5 * (colMin + colMin5);
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colMax = 0.5 * (colMax + colMax5);
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#endif
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#ifdef DAMAGE_TAKEN_EFFECT
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// when this triggers, use current frame UV to sample history, for a funny trailing effect.
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if(CriticalDamageTaken > 0.01) previousPosition.xy = texcoord;
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#endif
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vec3 frameHistory = max(FastCatmulRom(colortex5, previousPosition.xy, vec4(texelSize, 1.0/texelSize), 0.75).xyz,0.0);
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vec3 clampedframeHistory = clamp(frameHistory, colMin, colMax);
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float blendingFactor = BLEND_FACTOR;
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if(hand) blendingFactor = clamp(length(velocity/texelSize),blendingFactor,1.0);
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//Increases blending factor when far from AABB, reduces ghosting
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blendingFactor = min(blendingFactor + luma(min(max(clampedframeHistory - frameHistory,0.0) / frameHistory, 1.0)),1.0);
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// Blend current pixel with clamped history, apply fast tonemap beforehand to reduce flickering
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vec3 finalResult = invTonemap(mix(tonemap(clampedframeHistory), tonemap(currentFrame), blendingFactor));
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#ifdef DAMAGE_TAKEN_EFFECT
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// when this triggers, do a funny trailing effect.
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if(CriticalDamageTaken > 0.01) finalResult = mix(finalResult, frameHistory, sqrt(CriticalDamageTaken)*0.8);
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#endif
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#ifdef SCREENSHOT_MODE
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// when this is on, do "infinite frame accumulation "
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if (hideGUI == 0) return vec4(finalResult, 1.0);
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vec4 superSampledHistory = texture2D(colortex5, previousPosition.xy);
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vec3 superSampledResult = superSampledHistory.rgb * superSampledHistory.a + currentFrame;
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return vec4(superSampledResult/(superSampledHistory.a+1.0), superSampledHistory.a+1.0);
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#endif
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return vec4(finalResult, 1.0);
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}
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void main() {
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/* DRAWBUFFERS:5 */
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#ifdef TAA
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vec2 taauTC = clamp(texcoord*RENDER_SCALE, vec2(0.0), RENDER_SCALE - texelSize*2.0);
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float dataUnpacked = decodeVec2(texelFetch2D(colortex1,ivec2(gl_FragCoord.xy*RENDER_SCALE),0).w).y;
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bool hand = abs(dataUnpacked-0.75) < 0.01 && texture2D(depthtex1,taauTC).x < 1.0;
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// vec4 color = TAA_hq(hand);
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vec4 color = computeTAA(texcoord, hand);
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// gl_FragData[0] = clamp(color, 0.0, 65000.0);
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#if DEBUG_VIEW == debug_TEMPORAL_REPROJECTION
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color.rgb = texture2D(colortex3, taauTC).rgb;
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#endif
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#ifdef SCREENSHOT_MODE
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gl_FragData[0] = clamp(color, 0.0, 65000.0);
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#else
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gl_FragData[0] = clamp(fp10Dither(color, triangularize(interleaved_gradientNoise())), 0.0, 65000.0);
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#endif
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#else
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vec3 color = clamp(fp10Dither(vec4(texture2D(colortex3,texcoord).rgb,1.0), triangularize(interleaved_gradientNoise())).rgb,0.0,65000.);
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gl_FragData[0].rgb = color;
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#endif
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} |