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path: root/indra/newview/app_settings/shaders/class1/deferred/alphaV.glsl
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-rw-r--r--indra/newview/app_settings/shaders/class1/deferred/alphaV.glsl57
1 files changed, 43 insertions, 14 deletions
diff --git a/indra/newview/app_settings/shaders/class1/deferred/alphaV.glsl b/indra/newview/app_settings/shaders/class1/deferred/alphaV.glsl
index fabbce0824..525b68c437 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/alphaV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/alphaV.glsl
@@ -5,11 +5,12 @@
* $/LicenseInfo$
*/
+#version 120
+
vec4 calcLighting(vec3 pos, vec3 norm, vec4 color, vec4 baseCol);
void calcAtmospherics(vec3 inPositionEye);
float calcDirectionalLight(vec3 n, vec3 l);
-float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, float is_pointlight);
vec3 atmosAmbient(vec3 light);
vec3 atmosAffectDirectionalLight(float lightIntensity);
@@ -21,11 +22,37 @@ varying vec3 vary_directional;
varying vec3 vary_fragcoord;
varying vec3 vary_position;
varying vec3 vary_light;
+varying vec3 vary_pointlight_col;
uniform float near_clip;
uniform float shadow_offset;
uniform float shadow_bias;
+float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, float fa, float is_pointlight)
+{
+ //get light vector
+ vec3 lv = lp.xyz-v;
+
+ //get distance
+ float d = length(lv);
+
+ //normalize light vector
+ lv *= 1.0/d;
+
+ //distance attenuation
+ float dist2 = d*d/(la*la);
+ float da = clamp(1.0-(dist2-1.0*(1.0-fa))/fa, 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;
+}
+
void main()
{
//transform vertex
@@ -36,33 +63,35 @@ void main()
vec4 pos = (gl_ModelViewMatrix * gl_Vertex);
vec3 norm = normalize(gl_NormalMatrix * gl_Normal);
- vary_position = pos.xyz + norm.xyz * (-pos.z/64.0*shadow_offset+shadow_bias);
+ float dp_directional_light = max(0.0, dot(norm, gl_LightSource[0].position.xyz));
+ vary_position = pos.xyz + gl_LightSource[0].position.xyz * (1.0-dp_directional_light)*shadow_offset;
calcAtmospherics(pos.xyz);
//vec4 color = calcLighting(pos.xyz, norm, gl_Color, vec4(0.));
-
vec4 col = vec4(0.0, 0.0, 0.0, gl_Color.a);
- // Collect normal lights (need to be divided by two, as we later multiply by 2)
- col.rgb += gl_LightSource[2].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[2].position, gl_LightSource[2].spotDirection.xyz, gl_LightSource[2].linearAttenuation, gl_LightSource[2].specular.a);
- col.rgb += gl_LightSource[3].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[3].position, gl_LightSource[3].spotDirection.xyz, gl_LightSource[3].linearAttenuation, gl_LightSource[3].specular.a);
- col.rgb += gl_LightSource[4].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[4].position, gl_LightSource[4].spotDirection.xyz, gl_LightSource[4].linearAttenuation, gl_LightSource[4].specular.a);
- col.rgb += gl_LightSource[5].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[5].position, gl_LightSource[5].spotDirection.xyz, gl_LightSource[5].linearAttenuation, gl_LightSource[5].specular.a);
- col.rgb += gl_LightSource[6].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[6].position, gl_LightSource[6].spotDirection.xyz, gl_LightSource[6].linearAttenuation, gl_LightSource[6].specular.a);
- col.rgb += gl_LightSource[7].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[7].position, gl_LightSource[7].spotDirection.xyz, gl_LightSource[7].linearAttenuation, gl_LightSource[7].specular.a);
- col.rgb += gl_LightSource[1].diffuse.rgb*calcDirectionalLight(norm, gl_LightSource[1].position.xyz);
- col.rgb = scaleDownLight(col.rgb);
+ // Collect normal lights
+ col.rgb += gl_LightSource[2].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[2].position, gl_LightSource[2].spotDirection.xyz, gl_LightSource[2].linearAttenuation, gl_LightSource[2].quadraticAttenuation, gl_LightSource[2].specular.a);
+ col.rgb += gl_LightSource[3].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[3].position, gl_LightSource[3].spotDirection.xyz, gl_LightSource[3].linearAttenuation, gl_LightSource[3].quadraticAttenuation ,gl_LightSource[3].specular.a);
+ col.rgb += gl_LightSource[4].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[4].position, gl_LightSource[4].spotDirection.xyz, gl_LightSource[4].linearAttenuation, gl_LightSource[4].quadraticAttenuation, gl_LightSource[4].specular.a);
+ col.rgb += gl_LightSource[5].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[5].position, gl_LightSource[5].spotDirection.xyz, gl_LightSource[5].linearAttenuation, gl_LightSource[5].quadraticAttenuation, gl_LightSource[5].specular.a);
+ col.rgb += gl_LightSource[6].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[6].position, gl_LightSource[6].spotDirection.xyz, gl_LightSource[6].linearAttenuation, gl_LightSource[6].quadraticAttenuation, gl_LightSource[6].specular.a);
+ col.rgb += gl_LightSource[7].diffuse.rgb*calcPointLightOrSpotLight(pos.xyz, norm, gl_LightSource[7].position, gl_LightSource[7].spotDirection.xyz, gl_LightSource[7].linearAttenuation, gl_LightSource[7].quadraticAttenuation, gl_LightSource[7].specular.a);
+ vary_pointlight_col = col.rgb*gl_Color.rgb;
+
+ col.rgb = vec3(0,0,0);
+
// Add windlight lights
- col.rgb += atmosAmbient(vec3(0.));
+ col.rgb = atmosAmbient(vec3(0.));
vary_light = gl_LightSource[0].position.xyz;
vary_ambient = col.rgb*gl_Color.rgb;
vary_directional.rgb = gl_Color.rgb*atmosAffectDirectionalLight(max(calcDirectionalLight(norm, gl_LightSource[0].position.xyz), (1.0-gl_Color.a)*(1.0-gl_Color.a)));
- col.rgb = min(col.rgb*gl_Color.rgb, 1.0);
+ col.rgb = col.rgb*gl_Color.rgb;
gl_FrontColor = col;