From cb3875fe72b120251c289302b958243e08a24e5b Mon Sep 17 00:00:00 2001
From: Loren Shih <seraph@lindenlab.com>
Date: Thu, 26 May 2011 12:00:58 -0400
Subject: [PATCH] SH-1527 FIXED Fix for black alpha objects with lighting and
shadows enabled and no lights around.
---
.../class1/deferred/alphaSkinnedV.glsl | 25 +++++++++++--------
.../shaders/class1/deferred/alphaV.glsl | 25 +++++++++++--------
.../shaders/class1/deferred/avatarAlphaV.glsl | 25 +++++++++++--------
.../class2/deferred/alphaSkinnedV.glsl | 25 +++++++++++--------
.../shaders/class2/deferred/alphaV.glsl | 25 +++++++++++--------
.../shaders/class2/deferred/avatarAlphaV.glsl | 25 +++++++++++--------
6 files changed, 90 insertions(+), 60 deletions(-)
diff --git a/indra/newview/app_settings/shaders/class1/deferred/alphaSkinnedV.glsl b/indra/newview/app_settings/shaders/class1/deferred/alphaSkinnedV.glsl
index 5addbbb1763..65d9209983e 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/alphaSkinnedV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/alphaSkinnedV.glsl
@@ -35,19 +35,24 @@ float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, floa
//get distance
float d = length(lv);
- //normalize light vector
- lv *= 1.0/d;
+ float da = 0.0;
+
+ if (d > 0.0 && la > 0.0 && fa > 0.0)
+ {
+ //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);
+ //distance attenuation
+ float dist2 = d*d/(la*la);
+ 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
+ // spotlight coefficient.
+ float spot = max(dot(-ln, lv), is_pointlight);
+ da *= spot*spot; // GL_SPOT_EXPONENT=2
- //angular attenuation
- da *= calcDirectionalLight(n, lv);
+ //angular attenuation
+ da *= calcDirectionalLight(n, lv);
+ }
return da;
}
diff --git a/indra/newview/app_settings/shaders/class1/deferred/alphaV.glsl b/indra/newview/app_settings/shaders/class1/deferred/alphaV.glsl
index 525b68c4379..2691fc8dedb 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/alphaV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/alphaV.glsl
@@ -36,19 +36,24 @@ float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, floa
//get distance
float d = length(lv);
- //normalize light vector
- lv *= 1.0/d;
+ float da = 0.0;
+
+ if (d > 0.0 && la > 0.0 && fa > 0.0)
+ {
+ //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);
+ //distance attenuation
+ float dist2 = d*d/(la*la);
+ 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
+ // spotlight coefficient.
+ float spot = max(dot(-ln, lv), is_pointlight);
+ da *= spot*spot; // GL_SPOT_EXPONENT=2
- //angular attenuation
- da *= calcDirectionalLight(n, lv);
+ //angular attenuation
+ da *= calcDirectionalLight(n, lv);
+ }
return da;
}
diff --git a/indra/newview/app_settings/shaders/class1/deferred/avatarAlphaV.glsl b/indra/newview/app_settings/shaders/class1/deferred/avatarAlphaV.glsl
index a2a7dea20d5..a012cb50304 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/avatarAlphaV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/avatarAlphaV.glsl
@@ -35,19 +35,24 @@ float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, floa
//get distance
float d = length(lv);
- //normalize light vector
- lv *= 1.0/d;
+ float da = 0.0;
+
+ if (d > 0.0 && la > 0.0 && fa > 0.0)
+ {
+ //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);
+ //distance attenuation
+ float dist2 = d*d/(la*la);
+ 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
+ // spotlight coefficient.
+ float spot = max(dot(-ln, lv), is_pointlight);
+ da *= spot*spot; // GL_SPOT_EXPONENT=2
- //angular attenuation
- da *= calcDirectionalLight(n, lv);
+ //angular attenuation
+ da *= calcDirectionalLight(n, lv);
+ }
return da;
}
diff --git a/indra/newview/app_settings/shaders/class2/deferred/alphaSkinnedV.glsl b/indra/newview/app_settings/shaders/class2/deferred/alphaSkinnedV.glsl
index d227346163e..dfb36980b00 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/alphaSkinnedV.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/alphaSkinnedV.glsl
@@ -35,19 +35,24 @@ float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, floa
//get distance
float d = length(lv);
- //normalize light vector
- lv *= 1.0/d;
+ float da = 0.0;
+
+ if (d > 0.0 && la > 0.0 && fa > 0.0)
+ {
+ //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);
+ //distance attenuation
+ float dist2 = d*d/(la*la);
+ 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
+ // spotlight coefficient.
+ float spot = max(dot(-ln, lv), is_pointlight);
+ da *= spot*spot; // GL_SPOT_EXPONENT=2
- //angular attenuation
- da *= calcDirectionalLight(n, lv);
+ //angular attenuation
+ da *= calcDirectionalLight(n, lv);
+ }
return da;
}
diff --git a/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl b/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl
index 86f014df35f..f6160815ebb 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/alphaV.glsl
@@ -35,19 +35,24 @@ float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, floa
//get distance
float d = length(lv);
- //normalize light vector
- lv *= 1.0/d;
+ float da = 0.0;
+
+ if (d > 0.0 && la > 0.0 && fa > 0.0)
+ {
+ //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);
+ //distance attenuation
+ float dist2 = d*d/(la*la);
+ 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
+ // spotlight coefficient.
+ float spot = max(dot(-ln, lv), is_pointlight);
+ da *= spot*spot; // GL_SPOT_EXPONENT=2
- //angular attenuation
- da *= calcDirectionalLight(n, lv);
+ //angular attenuation
+ da *= calcDirectionalLight(n, lv);
+ }
return da;
}
diff --git a/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl b/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl
index 495e86c8db0..0ae09df0c6d 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/avatarAlphaV.glsl
@@ -37,19 +37,24 @@ float calcPointLightOrSpotLight(vec3 v, vec3 n, vec4 lp, vec3 ln, float la, floa
//get distance
float d = length(lv);
- //normalize light vector
- lv *= 1.0/d;
+ float da = 0.0;
+
+ if (d > 0.0 && la > 0.0 && fa > 0.0)
+ {
+ //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);
+ //distance attenuation
+ float dist2 = d*d/(la*la);
+ 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
+ // spotlight coefficient.
+ float spot = max(dot(-ln, lv), is_pointlight);
+ da *= spot*spot; // GL_SPOT_EXPONENT=2
- //angular attenuation
- da *= calcDirectionalLight(n, lv);
+ //angular attenuation
+ da *= calcDirectionalLight(n, lv);
+ }
return da;
}
--
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