SH-2181 Fix for alpha flickering when basic shaders enabled (don't use glAlphaFunc when shaders are available).

Reviewed by Leslie

8 files changed, 239 insertions, 0 deletions

diff --git a/indra/newview/app_settings/shaders/class2/lighting/lightAlphaMaskF.glsl b/indra/newview/app_settings/shaders/class2/lighting/lightAlphaMaskF.glsl
new file mode 100644
index 0000000000..1211ad7a89
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class2/lighting/lightAlphaMaskF.glsl
@@ -0,0 +1,30 @@
+/** 
+ * @file lightAlphaMaskF.glsl
+ *
+ * $LicenseInfo:firstyear=2007&license=viewerlgpl$
+ * $/LicenseInfo$
+ */
+ 
+
+uniform float minimum_alpha;
+uniform float maximum_alpha;
+
+vec3 atmosLighting(vec3 light);
+vec3 scaleSoftClip(vec3 light);
+
+void default_lighting() 
+{
+	vec4 color = diffuseLookup(gl_TexCoord[0].xy) * gl_Color;
+	
+	if (color.a < minimum_alpha || color.a > maximum_alpha)
+	{
+		discard;
+	}
+
+	color.rgb = atmosLighting(color.rgb);
+
+	color.rgb = scaleSoftClip(color.rgb);
+
+	gl_FragColor = color;
+}
+
diff --git a/indra/newview/app_settings/shaders/class2/lighting/lightAlphaMaskNonIndexedF.glsl b/indra/newview/app_settings/shaders/class2/lighting/lightAlphaMaskNonIndexedF.glsl
new file mode 100644
index 0000000000..1a7d67b943
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class2/lighting/lightAlphaMaskNonIndexedF.glsl
@@ -0,0 +1,33 @@
+/** 
+ * @file lightAlphaMaskNonIndexedF.glsl
+ *
+ * $LicenseInfo:firstyear=2007&license=viewerlgpl$
+ * $/LicenseInfo$
+ */
+ 
+
+uniform float minimum_alpha;
+uniform float maximum_alpha;
+
+
+uniform sampler2D diffuseMap;
+
+vec3 atmosLighting(vec3 light);
+vec3 scaleSoftClip(vec3 light);
+
+void default_lighting() 
+{
+	vec4 color = texture2D(diffuseMap,gl_TexCoord[0].xy) * gl_Color;
+
+	if (color.a < minimum_alpha || color.a > maximum_alpha)
+	{
+		discard;
+	}
+
+	color.rgb = atmosLighting(color.rgb);
+
+	color.rgb = scaleSoftClip(color.rgb);
+
+	gl_FragColor = color;
+}
+
diff --git a/indra/newview/app_settings/shaders/class2/lighting/lightFullbrightAlphaMaskF.glsl b/indra/newview/app_settings/shaders/class2/lighting/lightFullbrightAlphaMaskF.glsl
new file mode 100644
index 0000000000..73e885a7e9
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class2/lighting/lightFullbrightAlphaMaskF.glsl
@@ -0,0 +1,29 @@
+/** 
+ * @file lightFullbrightAlphaMaskF.glsl
+ *
+ * $LicenseInfo:firstyear=2007&license=viewerlgpl$
+ * $/LicenseInfo$
+ */
+ 
+uniform float minimum_alpha;
+uniform float maximum_alpha;
+
+vec3 fullbrightAtmosTransport(vec3 light);
+vec3 fullbrightScaleSoftClip(vec3 light);
+
+void fullbright_lighting()
+{
+	vec4 color = diffuseLookup(gl_TexCoord[0].xy) * gl_Color;
+	
+	if (color.a < minimum_alpha || color.a > maximum_alpha)
+	{
+		discard;
+	}
+
+	color.rgb = fullbrightAtmosTransport(color.rgb);
+	
+	color.rgb = fullbrightScaleSoftClip(color.rgb);
+
+	gl_FragColor = color;
+}
+
diff --git a/indra/newview/app_settings/shaders/class2/lighting/lightFullbrightNonIndexedAlphaMaskF.glsl b/indra/newview/app_settings/shaders/class2/lighting/lightFullbrightNonIndexedAlphaMaskF.glsl
new file mode 100644
index 0000000000..55dfe9b166
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class2/lighting/lightFullbrightNonIndexedAlphaMaskF.glsl
@@ -0,0 +1,31 @@
+/** 
+ * @file lightFullbrightNonIndexedAlphaMaskF.glsl
+ *
+ * $LicenseInfo:firstyear=2007&license=viewerlgpl$
+ * $/LicenseInfo$
+ */
+ 
+uniform float minimum_alpha;
+uniform float maximum_alpha;
+
+vec3 fullbrightAtmosTransport(vec3 light);
+vec3 fullbrightScaleSoftClip(vec3 light);
+
+uniform sampler2D diffuseMap;
+
+void fullbright_lighting()
+{
+	vec4 color = texture2D(diffuseMap,gl_TexCoord[0].xy) * gl_Color;
+	
+	if (color.a < minimum_alpha || color.a > maximum_alpha)
+	{
+		discard;
+	}
+
+	color.rgb = fullbrightAtmosTransport(color.rgb);
+	
+	color.rgb = fullbrightScaleSoftClip(color.rgb);
+
+	gl_FragColor = color;
+}
+
diff --git a/indra/newview/app_settings/shaders/class2/lighting/lightFullbrightWaterAlphaMaskF.glsl b/indra/newview/app_settings/shaders/class2/lighting/lightFullbrightWaterAlphaMaskF.glsl
new file mode 100644
index 0000000000..e4cea077f9
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class2/lighting/lightFullbrightWaterAlphaMaskF.glsl
@@ -0,0 +1,29 @@
+/** 
+ * @file lightFullbrightWaterAlphaMaskF.glsl
+ *
+ * $LicenseInfo:firstyear=2007&license=viewerlgpl$
+ * $/LicenseInfo$
+ */
+
+uniform float minimum_alpha;
+uniform float maximum_alpha;
+
+vec4 diffuseLookup(vec2 texcoord);
+
+vec3 fullbrightAtmosTransport(vec3 light);
+vec4 applyWaterFog(vec4 color);
+
+void fullbright_lighting_water()
+{
+	vec4 color = diffuseLookup(gl_TexCoord[0].xy) * gl_Color;
+
+	if (color.a < minimum_alpha || color.a > maximum_alpha)
+	{
+		discard;
+	}
+
+	color.rgb = fullbrightAtmosTransport(color.rgb);
+	
+	gl_FragColor = applyWaterFog(color);
+}
+
diff --git a/indra/newview/app_settings/shaders/class2/lighting/lightFullbrightWaterNonIndexedAlphaMaskF.glsl b/indra/newview/app_settings/shaders/class2/lighting/lightFullbrightWaterNonIndexedAlphaMaskF.glsl
new file mode 100644
index 0000000000..e8533f94a7
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class2/lighting/lightFullbrightWaterNonIndexedAlphaMaskF.glsl
@@ -0,0 +1,29 @@
+/** 
+ * @file lightFullbrightWaterNonIndexedAlphaMaskF.glsl
+ *
+ * $LicenseInfo:firstyear=2007&license=viewerlgpl$
+ * $/LicenseInfo$
+ */
+ 
+uniform float minimum_alpha;
+uniform float maximum_alpha;
+
+uniform sampler2D diffuseMap;
+
+vec3 fullbrightAtmosTransport(vec3 light);
+vec4 applyWaterFog(vec4 color);
+
+void fullbright_lighting_water()
+{
+	vec4 color = texture2D(diffuseMap, gl_TexCoord[0].xy) * gl_Color;
+
+	if (color.a < minimum_alpha || color.a > maximum_alpha)
+	{
+		discard;
+	}
+
+	color.rgb = fullbrightAtmosTransport(color.rgb);
+	
+	gl_FragColor = applyWaterFog(color);
+}
+
diff --git a/indra/newview/app_settings/shaders/class2/lighting/lightWaterAlphaMaskF.glsl b/indra/newview/app_settings/shaders/class2/lighting/lightWaterAlphaMaskF.glsl
new file mode 100644
index 0000000000..7b3c20f092
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class2/lighting/lightWaterAlphaMaskF.glsl
@@ -0,0 +1,27 @@
+/** 
+ * @file lightWaterAlphaMaskF.glsl
+ *
+ * $LicenseInfo:firstyear=2007&license=viewerlgpl$
+ * $/LicenseInfo$
+ */
+ 
+uniform float minimum_alpha;
+uniform float maximum_alpha;
+
+vec3 atmosLighting(vec3 light);
+vec4 applyWaterFog(vec4 color);
+
+void default_lighting_water()
+{
+	vec4 color = diffuseLookup(gl_TexCoord[0].xy) * gl_Color;
+
+	if (color.a < minimum_alpha || color.a > maximum_alpha)
+	{
+		discard;
+	}
+
+	color.rgb = atmosLighting(color.rgb);
+
+	gl_FragColor = applyWaterFog(color);
+}
+
diff --git a/indra/newview/app_settings/shaders/class2/lighting/lightWaterAlphaMaskNonIndexedF.glsl b/indra/newview/app_settings/shaders/class2/lighting/lightWaterAlphaMaskNonIndexedF.glsl
new file mode 100644
index 0000000000..907140effd
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class2/lighting/lightWaterAlphaMaskNonIndexedF.glsl
@@ -0,0 +1,31 @@
+/** 
+ * @file lightWaterAlphaMaskNonIndexedF.glsl
+ *
+ * $LicenseInfo:firstyear=2007&license=viewerlgpl$
+ * $/LicenseInfo$
+ */
+ 
+uniform float minimum_alpha;
+uniform float maximum_alpha;
+
+uniform sampler2D diffuseMap;
+
+vec3 atmosLighting(vec3 light);
+vec4 applyWaterFog(vec4 color);
+
+void default_lighting_water()
+{
+	vec4 color = texture2D(diffuseMap,gl_TexCoord[0].xy) * gl_Color;
+
+	if (color.a < minimum_alpha || color.a > maximum_alpha)
+	{
+		discard;
+	}
+
+	color.rgb = atmosLighting(color.rgb);
+
+	color = applyWaterFog(color);
+	
+	gl_FragColor = color;
+}
+