diff options
Diffstat (limited to 'drivers/gles3/shaders/scene.glsl')
| -rw-r--r-- | drivers/gles3/shaders/scene.glsl | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gles3/shaders/scene.glsl b/drivers/gles3/shaders/scene.glsl index 0e111e59a9..ed8df04377 100644 --- a/drivers/gles3/shaders/scene.glsl +++ b/drivers/gles3/shaders/scene.glsl @@ -323,7 +323,13 @@ void main() { #if !defined(SKIP_TRANSFORM_USED) && defined(VERTEX_WORLD_COORDS_USED) vertex = world_matrix * vertex; + +#if defined(ENSURE_CORRECT_NORMALS) + mat3 normal_matrix = mat3(transpose(inverse(world_matrix))); + normal = normal_matrix * normal; +#else normal = normalize((world_matrix * vec4(normal,0.0)).xyz); +#endif #if defined(ENABLE_TANGENT_INTERP) || defined(ENABLE_NORMALMAP) || defined(LIGHT_USE_ANISOTROPY) @@ -395,7 +401,13 @@ VERTEX_SHADER_CODE #if !defined(SKIP_TRANSFORM_USED) && !defined(VERTEX_WORLD_COORDS_USED) vertex = modelview * vertex; + +#if defined(ENSURE_CORRECT_NORMALS) + mat3 normal_matrix = mat3(transpose(inverse(modelview))); + normal = normal_matrix * normal; +#else normal = normalize((modelview * vec4(normal,0.0)).xyz); +#endif #if defined(ENABLE_TANGENT_INTERP) || defined(ENABLE_NORMALMAP) || defined(LIGHT_USE_ANISOTROPY) |