diff options
Diffstat (limited to 'scene/resources/material.cpp')
| -rw-r--r-- | scene/resources/material.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/scene/resources/material.cpp b/scene/resources/material.cpp index 86c7bda2b3..75dd417f7f 100644 --- a/scene/resources/material.cpp +++ b/scene/resources/material.cpp @@ -1032,7 +1032,10 @@ void BaseMaterial3D::_update_shader() { if (features[FEATURE_REFRACTION]) { if (features[FEATURE_NORMAL_MAPPING]) { - code += "\tvec3 ref_normal = normalize( mix(NORMAL,TANGENT * NORMAL_MAP.x + BINORMAL * NORMAL_MAP.y + NORMAL * NORMAL_MAP.z,NORMAL_MAP_DEPTH) );\n"; + code += "\tvec3 unpacked_normal = NORMAL_MAP;\n"; + code += "\tunpacked_normal.xy = unpacked_normal.xy * 2.0 - 1.0;\n"; + code += "\tunpacked_normal.z = sqrt(max(0.0, 1.0 - dot(unpacked_normal.xy, unpacked_normal.xy)));\n"; + code += "\tvec3 ref_normal = normalize( mix(NORMAL,TANGENT * unpacked_normal.x + BINORMAL * unpacked_normal.y + NORMAL * unpacked_normal.z,NORMAL_MAP_DEPTH) );\n"; } else { code += "\tvec3 ref_normal = NORMAL;\n"; } |