diff options
Diffstat (limited to 'indra/newview/app_settings/shaders/class1/windlight')
| -rw-r--r-- | indra/newview/app_settings/shaders/class1/windlight/atmosphericsFuncs.glsl | 10 |
1 files changed, 8 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 786a65df0f..3fe3b7afd3 100644 --- a/indra/newview/app_settings/shaders/class1/windlight/atmosphericsFuncs.glsl +++ b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsFuncs.glsl @@ -47,7 +47,7 @@ float getAmbientClamp() return 1.0f; } -void calcAtmosphericVars(vec3 inPositionEye, float ambFactor, out vec3 sunlit, out vec3 amblit, out vec3 additive, out vec3 atten, bool use_ao) { +void calcAtmosphericVars(vec3 inPositionEye, vec3 light_dir, float ambFactor, out vec3 sunlit, out vec3 amblit, out vec3 additive, out vec3 atten, bool use_ao) { vec3 P = inPositionEye; @@ -103,13 +103,19 @@ void calcAtmosphericVars(vec3 inPositionEye, float ambFactor, out vec3 sunlit, o //compute haze glow //(can use temp2.x as temp because we haven't used it yet) temp2.x = dot(Pn, tmpLightnorm.xyz); + + // dampen sun additive contrib when not facing it... + if (length(light_dir) > 0.01) + { + temp2.x *= max(0.0f, dot(light_dir, Pn)); + } temp2.x = 1. - temp2.x; //temp2.x is 0 at the sun and increases away from sun temp2.x = max(temp2.x, .001); //was glow.y //set a minimum "angle" (smaller glow.y allows tighter, brighter hotspot) temp2.x *= glow.x; //higher glow.x gives dimmer glow (because next step is 1 / "angle") - temp2.x = pow(temp2.x, glow.z); + temp2.x = pow(temp2.x, glow.z * 0.2); //glow.z should be negative, so we're doing a sort of (1 / "angle") function //add "minimum anti-solar illumination" |