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improve normals used for refraction

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Xonk
2026-09-21 23:08:59 -04:00
parent 82df914cc4
commit 8132c57f3c
2 changed files with 48 additions and 3 deletions
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shaders/dimensions/all_translucent.fsh
+23 -2
View File
@@ -394,6 +394,24 @@ float bias(){
return 0.0;
#endif
}
vec2 allocatePrecision_TangentNormal(vec2 normals){
vec2 newNormal = normals;
if(normals.x < 0.0) {
newNormal.x = -pow(1.0-pow(1.0-clamp(-newNormal.x,0.0,1.0),2),0.5);
}else{
newNormal.x = pow(1.0-pow(1.0-clamp( newNormal.x,0.0,1.0),2),0.5);
}
if(normals.y < 0.0) {
newNormal.y = -pow(1.0-pow(1.0-clamp(-newNormal.y,0.0,1.0),2),0.5);
}else{
newNormal.y = pow(1.0-pow(1.0-clamp( newNormal.y,0.0,1.0),2),0.5);
}
return clamp(newNormal + newNormal*interleaved_gradientNoise_temporal()*0.025,-1.0,1.0);
}
//////////////////////////////VOID MAIN//////////////////////////////
//////////////////////////////VOID MAIN//////////////////////////////
//////////////////////////////VOID MAIN//////////////////////////////
@@ -586,8 +604,11 @@ if (gl_FragCoord.x * texelSize.x < 1.0 && gl_FragCoord.y * texelSize.y < 1.0 )
#if defined ENTITIES && defined IS_IRIS
if(NAMETAG > 0) nameTagMask = 0.1;
#endif
gl_FragData[2] = vec4(encodeVec2(TangentNormal*0.5+0.5), encodeVec2(GLASS_TINT_COLORS.rg), encodeVec2(GLASS_TINT_COLORS.ba), encodeVec2(0.0, nameTagMask));
// write with a curve applied to the normal to put denser bits where finer detail is needed. and then dither
TangentNormal = allocatePrecision_TangentNormal(TangentNormal) * 0.5 + 0.5;
gl_FragData[2] = vec4(encodeVec2(TangentNormal), encodeVec2(GLASS_TINT_COLORS.rg), encodeVec2(GLASS_TINT_COLORS.ba), encodeVec2(0.0, nameTagMask));
////////////////////////////////////////////////////////////////////////////////
//////////////////////////////// SPECULARS /////////////////////////////////////
shaders/dimensions/composite3.fsh
+25 -1
View File
@@ -429,6 +429,26 @@ float getBorderFogDensity(float linearDistance, vec3 playerPos, bool sky){
return borderFogDensity;
}
vec2 allocatePrecision_TangentNormal(vec2 normals){
vec2 newNormal = normals;
if(normals.x < 0.0) {
newNormal.x = -(1.0-pow(1-pow(clamp(-newNormal.x,0.0,1.0),2),0.5));
}else{
newNormal.x = (1.0-pow(1-pow(clamp( newNormal.x,0.0,1.0),2),0.5));
}
if(normals.y < 0.0) {
newNormal.y = -(1.0-pow(1-pow(clamp(-newNormal.y,0.0,1.0),2),0.5));
}else{
newNormal.y = (1.0-pow(1-pow(clamp( newNormal.y,0.0,1.0),2),0.5));
}
return newNormal;
}
void main() {
/* RENDERTARGETS:7,3,10 */
@@ -492,7 +512,11 @@ void main() {
vec4 unpack1 = vec4(decodeVec2(data.b),decodeVec2(data.a)) ;
vec4 albedo = vec4(unpack0.ba,unpack1.rg);
vec2 tangentNormals = unpack0.xy*2.0-1.0;
vec2 tangentNormals = unpack0.xy* 2.0 - 1.0;
// this was written with a curve applied to the normal to put denser bits where finer detail is needed. this is the inverse.
tangentNormals = allocatePrecision_TangentNormal(tangentNormals);
bool nameTagMask = abs(unpack1.a - 0.1) < 0.01;
float nametagbackground = nameTagMask ? 0.25 : 1.0;