LeenkxTeam/LNXSDK
3
3
Fork 4
Code Issues 16 Pull Requests Actions Packages Projects Releases Wiki Activity

Extend BRDF

Browse Source
This commit is contained in:
Onek8
2026-07-27 12:10:11 -07:00
parent 0b4184ccc2
commit 7aeebf2008
24 changed files with 878 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

54
leenkx/Shaders/std/light_mobile.glsl
View File

@ -53,6 +53,21 @@ vec3 sampleLight(const vec3 p, const vec3 n, const vec3 v, const float dotNV, co
#ifdef _Spot
, bool isSpot, float spotSize, float spotBlend, vec3 spotDir, vec2 scale, vec3 right
#endif
#ifdef _ClearCoat
, float clearcoat, float clearcoatRough, float coatIOR, vec3 coatTint
#endif
#ifdef _Sheen
, float sheen, float sheenRough, vec3 sheenTint
#endif
#ifdef _Anisotropy
, float anisotropy, float anisoRot, vec3 tangent
#endif
#ifdef _Subsurface
, float subsurface, vec3 sssColor, vec3 sssRadius, float sssAnisotropy
#endif
#ifdef _Transmission
, float transmission, float transRough, float ior, float thinWall
#endif
) {
vec3 ld = lp - p;
vec3 l = normalize(ld);
@ -61,8 +76,47 @@ vec3 sampleLight(const vec3 p, const vec3 n, const vec3 v, const float dotNV, co
float dotVH = max(0.0, dot(v, h));
float dotNL = max(0.0, dot(n, l));
#ifdef _Anisotropy
vec3 direct;
if (abs(anisotropy) > 0.001) {
vec3 bitangent = normalize(cross(n, tangent));
direct = lambertDiffuseBRDF(albedo, dotNL) +
anisotropicBRDF(f0, rough, anisotropy, anisoRot,
tangent, bitangent, n, l, v, dotNL, dotNV) * spec;
} else {
direct = lambertDiffuseBRDF(albedo, dotNL) +
specularBRDF(f0, rough, dotNL, dotNH, dotNV, dotVH) * spec;
}
#else
vec3 direct = lambertDiffuseBRDF(albedo, dotNL) +
specularBRDF(f0, rough, dotNL, dotNH, dotNV, dotVH) * spec;
#endif
float sheenWeight = 1.0;
float coatWeight = 1.0;
#ifdef _Sheen
vec3 sheenContrib = sheenBRDF(sheen, sheenRough, sheenTint, dotNL, dotNH, dotNV);
sheenWeight = sheenAttenuation(sheen, sheenRough, sheenTint, dotNV);
#endif
#ifdef _ClearCoat
vec3 coatContrib = clearcoatBRDF(clearcoat, clearcoatRough, coatIOR, dotNL, dotNH, dotNV, dotVH);
coatWeight = coatAttenuation(clearcoat, coatIOR, dotNV);
#endif
float layerWeight = sheenWeight * coatWeight;
direct *= layerWeight;
#ifdef _Subsurface
direct += subsurfaceBRDF(albedo, sssColor, sssRadius, subsurface, sssAnisotropy, dotNL) * layerWeight;
#endif
#ifdef _Transmission
direct += transmissionBRDF(albedo, transmission, transRough, ior, thinWall, dotNL, dotNV, dotVH) * layerWeight;
#endif
#ifdef _ClearCoat
direct *= coatTintAttenuation(clearcoat, coatTint, dotNV);
direct += coatContrib * sheenWeight;
#endif
#ifdef _Sheen
direct += sheenContrib;
#endif
direct *= lightCol;
direct *= attenuate(distance(p, lp));