phaneron/Kelsidavis-WoWee
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Improve shadow stability and reduce foliage pop-in

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Kelsi 2026-02-04 16:30:24 -08:00
parent 979c0b5592
commit ab4cb878ea
6 changed files with 48 additions and 16 deletions
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5
assets/shaders/terrain.frag
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@ -47,6 +47,8 @@ float calcShadow() {
vec4 lsPos = uLightSpaceMatrix * vec4(FragPos, 1.0);
vec3 proj = lsPos.xyz / lsPos.w * 0.5 + 0.5;
if (proj.z > 1.0) return 1.0;
float edgeDist = max(abs(proj.x - 0.5), abs(proj.y - 0.5));
float coverageFade = 1.0 - smoothstep(0.40, 0.49, edgeDist);
vec3 norm = normalize(Normal);
vec3 lightDir = normalize(-uLightDir);
float bias = max(0.005 * (1.0 - dot(norm, lightDir)), 0.001);
@ -57,7 +59,8 @@ float calcShadow() {
shadow += texture(uShadowMap, vec3(proj.xy + vec2(x, y) * texelSize, proj.z - bias));
}
}
return shadow / 9.0;
shadow /= 9.0;
return mix(1.0, shadow, coverageFade);
}
void main() {