De-duplicate deferred gbuffer access for getPosition/getNorm.

De-duplicate ambient occlusion shader code and move to new aoUtil.glsl

Split shared shadow tap funcs into shadowUtil.glsl

1 files changed, 18 insertions, 3 deletions

diff --git a/indra/llrender/llshadermgr.cpp b/indra/llrender/llshadermgr.cpp
index 3a80ff0144..29d120a135 100644
--- a/indra/llrender/llshadermgr.cpp
+++ b/indra/llrender/llshadermgr.cpp
@@ -196,8 +196,8 @@ BOOL LLShaderMgr::attachShaderFeatures(LLGLSLShader * shader)
 		}
 	}
 
-#if USE_DEFERRED_SHADER_API
-    if (features->isDeferred || features->hasShadows)
+    // we want this BEFORE shadows and AO because those facilities use pos/norm access
+    if (features->isDeferred || features->hasShadows || features->hasAmbientOcclusion)
 	{
 		if (!shader->attachObject("deferred/deferredUtil.glsl"))
 		{
@@ -205,6 +205,22 @@ BOOL LLShaderMgr::attachShaderFeatures(LLGLSLShader * shader)
 		}
 	}
 
+    if (features->hasShadows)
+	{
+		if (!shader->attachObject("deferred/shadowUtil.glsl"))
+		{
+			return FALSE;
+		}
+	}
+
+    if (features->hasAmbientOcclusion)
+	{
+		if (!shader->attachObject("deferred/aoUtil.glsl"))
+		{
+			return FALSE;
+		}
+	}
+
     if (features->hasIndirect)
 	{
 		if (!shader->attachObject("deferred/indirect.glsl"))
@@ -212,7 +228,6 @@ BOOL LLShaderMgr::attachShaderFeatures(LLGLSLShader * shader)
 			return FALSE;
 		}
 	}
-#endif
 
 	if (features->hasGamma)
 	{