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elongate specular highlight

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epochwon 2025-06-25 17:04:21 -04:00
parent 164563f522
commit fdc878d766
1 changed files with 4 additions and 1 deletions
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5
files/shaders/compatibility/water.frag
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@ -40,6 +40,8 @@ const vec3 SUN_EXT = vec3(0.45, 0.55, 0.68); // sunlight extinction
const float SUN_SPEC_FADING_THRESHOLD = 0.15; // visibility at which sun specularity starts to fade
const float SPEC_HARDNESS = 256.0; // specular highlights hardness
const float SPEC_BUMPINESS = 5.0; // surface bumpiness boost for specular
const float SPEC_BRIGHTNESS = 1.5; // boosts the brightness of the specular highlights
const float BUMP_SUPPRESS_DEPTH = 300.0; // at what water depth bumpmap will be suppressed for reflections and refractions (prevents artifacts at shores)
const float REFR_FOG_DISTORT_DISTANCE = 3000.0; // at what distance refraction fog will be calculated using real water depth instead of distorted depth (prevents splotchy shores)
@ -161,7 +163,8 @@ void main(void)
sunSpec.a = min(1.0, sunSpec.a / SUN_SPEC_FADING_THRESHOLD);
// specular
float specular = pow(max(dot(reflect(viewDir, normal), sunWorldDir), 0.0), SPEC_HARDNESS) * shadow * sunSpec.a;
vec3 R = reflect(viewDir, normalize(vec3(normal.x * SPEC_BUMPINESS, normal.y * SPEC_BUMPINESS, normal.z)));
float specular = clamp(pow(atan(max(dot(R, sunWorldDir), 0.0) * 1.55), SPEC_HARDNESS) * SPEC_BRIGHTNESS, 0.0, 1.0) * shadow * sunSpec.a;
// artificial specularity to make rain ripples more noticeable
vec3 skyColorEstimate = vec3(max(0.0, mix(-0.3, 1.0, sunFade)));