diff options
Diffstat (limited to 'source/blender/draw/engines/eevee/shaders/btdf_lut_frag.glsl')
| -rw-r--r-- | source/blender/draw/engines/eevee/shaders/btdf_lut_frag.glsl | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/source/blender/draw/engines/eevee/shaders/btdf_lut_frag.glsl b/source/blender/draw/engines/eevee/shaders/btdf_lut_frag.glsl index 2ffe23a9197..2f1298e2707 100644 --- a/source/blender/draw/engines/eevee/shaders/btdf_lut_frag.glsl +++ b/source/blender/draw/engines/eevee/shaders/btdf_lut_frag.glsl @@ -37,7 +37,7 @@ void main() Xi.yz = vec2(cos(Xi.y * M_2PI), sin(Xi.y * M_2PI)); /* Microfacet normal. */ - vec3 H = sample_ggx(Xi, a2); + vec3 H = sample_ggx(Xi, a2, V); float VH = dot(V, H); @@ -59,7 +59,7 @@ void main() float LH = dot(L, H); /* Balancing the adjustments made in G1_Smith. */ - float G1_l = NL * 2.0 / G1_Smith_GGX(NL, a2); + float G1_l = NL * 2.0 / G1_Smith_GGX_opti(NL, a2); /* btdf = abs(VH*LH) * (ior*ior) * D * G(V) * G(L) / (Ht2 * NV) * pdf = (VH * abs(LH)) * (ior*ior) * D * G(V) / (Ht2 * NV) */ |