diff options
| -rw-r--r-- | indra/newview/app_settings/shaders/class1/windlight/atmosphericsFuncs.glsl | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/indra/newview/app_settings/shaders/class1/windlight/atmosphericsFuncs.glsl b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsFuncs.glsl index b7741ff48d..140d788fff 100644 --- a/indra/newview/app_settings/shaders/class1/windlight/atmosphericsFuncs.glsl +++ b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsFuncs.glsl @@ -81,8 +81,13 @@ void calcAtmosphericVars(vec3 inPositionEye, vec3 light_dir, float ambFactor, ou haze_weight = vec4(haze_density) / temp1; //(TERRAIN) compute sunlight from lightnorm only (for short rays like terrain) - // SL-12978: temp2.y = 1; optimized away - sunlight *= exp(-light_atten); + temp2.y = max(0.0, tmpLightnorm.y); + if (abs(temp2.y) > 0.000001f) + { + temp2.y = 1. / abs(temp2.y); + } + temp2.y = max(0.0000001f, temp2.y); + sunlight *= exp(-light_atten * temp2.y); // main atmospheric scattering line integral temp2.z = Plen * dens_mul; |