SL-19181 Modulate "glow" by PBR emissive.

2 files changed, 137 insertions, 0 deletions

diff --git a/indra/newview/app_settings/shaders/class1/deferred/pbrglowF.glsl b/indra/newview/app_settings/shaders/class1/deferred/pbrglowF.glsl
new file mode 100644
index 0000000000..8dc9e02f7a
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class1/deferred/pbrglowF.glsl
@@ -0,0 +1,67 @@
+/** 
+ * @file pbrglowF.glsl
+ *
+ * $LicenseInfo:firstyear=2023&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2023, Linden Research, Inc.
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ * 
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+/*[EXTRA_CODE_HERE]*/
+
+// forward fullbright implementation for HUDs
+
+uniform sampler2D diffuseMap;  //always in sRGB space
+
+uniform vec3 emissiveColor;
+uniform sampler2D emissiveMap;
+
+out vec4 frag_color;
+
+in vec3 vary_position;
+in vec4 vertex_emissive;
+
+in vec2 basecolor_texcoord;
+in vec2 emissive_texcoord;
+
+uniform float minimum_alpha; // PBR alphaMode: MASK, See: mAlphaCutoff, setAlphaCutoff()
+
+vec3 linear_to_srgb(vec3 c);
+vec3 srgb_to_linear(vec3 c);
+
+void main()
+{
+    vec4 basecolor = texture2D(diffuseMap, basecolor_texcoord.xy).rgba;
+
+    if (basecolor.a < minimum_alpha)
+    {
+        discard;
+    }
+
+    vec3 emissive = emissiveColor;
+    emissive *= srgb_to_linear(texture2D(emissiveMap, emissive_texcoord.xy).rgb);
+
+    float lum = max(max(emissive.r, emissive.g), emissive.b);
+    lum *= vertex_emissive.a;
+
+    // HUDs are rendered after gamma correction, output in sRGB space
+    frag_color.rgb = vec3(0);
+    frag_color.a = lum;
+}
+
diff --git a/indra/newview/app_settings/shaders/class1/deferred/pbrglowV.glsl b/indra/newview/app_settings/shaders/class1/deferred/pbrglowV.glsl
new file mode 100644
index 0000000000..75b24336c5
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class1/deferred/pbrglowV.glsl
@@ -0,0 +1,70 @@
+/** 
+ * @file pbgglowV.glsl
+ *
+ * $LicenseInfo:firstyear=2023&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2023, Linden Research, Inc.
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ * 
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+
+#ifdef HAS_SKIN
+uniform mat4 modelview_matrix;
+uniform mat4 projection_matrix;
+mat4 getObjectSkinnedTransform();
+#else
+uniform mat4 modelview_projection_matrix;
+#endif
+
+uniform mat4 texture_matrix0;
+
+uniform mat3 texture_basecolor_matrix;
+uniform mat3 texture_emissive_matrix;
+
+in vec3 position;
+in vec4 emissive;
+
+in vec2 texcoord0;
+
+out vec2 basecolor_texcoord;
+out vec2 emissive_texcoord;
+ 
+out vec4 vertex_emissive;
+
+void main()
+{
+#ifdef HAS_SKIN
+    mat4 mat = getObjectSkinnedTransform();
+
+    mat = modelview_matrix * mat;
+
+    vec3 pos = (mat*vec4(position.xyz,1.0)).xyz;
+
+    gl_Position = projection_matrix*vec4(pos,1.0);
+#else
+    //transform vertex
+    gl_Position = modelview_projection_matrix * vec4(position.xyz, 1.0); 
+#endif
+
+    basecolor_texcoord = (texture_matrix0 * vec4(texture_basecolor_matrix * vec3(texcoord0,1), 1)).xy;
+    emissive_texcoord = (texture_matrix0 * vec4(texture_emissive_matrix * vec3(texcoord0,1), 1)).xy;
+
+    vertex_emissive = emissive;
+}
+