diff options
Diffstat (limited to 'indra/newview/app_settings/shaders/class1/lighting')
| -rw-r--r-- | indra/newview/app_settings/shaders/class1/lighting/lightFuncV.glsl | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/indra/newview/app_settings/shaders/class1/lighting/lightFuncV.glsl b/indra/newview/app_settings/shaders/class1/lighting/lightFuncV.glsl index 3e8fdfb3e4..da49e59b89 100644 --- a/indra/newview/app_settings/shaders/class1/lighting/lightFuncV.glsl +++ b/indra/newview/app_settings/shaders/class1/lighting/lightFuncV.glsl @@ -12,7 +12,8 @@ float calcDirectionalLight(vec3 n, vec3 l) return a; } -float calcPointLight(vec3 v, vec3 n, vec4 lp, float la) + +float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, float is_pointlight) { //get light vector vec3 lv = lp.xyz-v; @@ -26,9 +27,13 @@ float calcPointLight(vec3 v, vec3 n, vec4 lp, float la) //distance attenuation float da = clamp(1.0/(la * d), 0.0, 1.0); + // spotlight coefficient. + float spot = max(dot(-ln, lv), is_pointlight); + da *= spot*spot; // GL_SPOT_EXPONENT=2 + //angular attenuation da *= calcDirectionalLight(n, lv); - + return da; } |