From d048fa142c2babe25bb79f9423cc84bb2f813f7e Mon Sep 17 00:00:00 2001
From: Cosmic Linden <cosmic@lindenlab.com>
Date: Fri, 14 Apr 2023 15:03:36 -0700
Subject: SL-19561: Fix missing shadows on PBR alpha mask animeshes.

TODO: Why did this work for the equivalent non-rigged prim?
---
 .../class1/deferred/shadowAlphaMaskSkinnedV.glsl   | 66 ----------------------
 .../shaders/class1/deferred/shadowAlphaMaskV.glsl  | 18 ++++++
 2 files changed, 18 insertions(+), 66 deletions(-)
 delete mode 100644 indra/newview/app_settings/shaders/class1/deferred/shadowAlphaMaskSkinnedV.glsl

(limited to 'indra/newview/app_settings/shaders')

diff --git a/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaMaskSkinnedV.glsl b/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaMaskSkinnedV.glsl
deleted file mode 100644
index 61c9e60744..0000000000
--- a/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaMaskSkinnedV.glsl
+++ /dev/null
@@ -1,66 +0,0 @@
-/** 
- * @file shadowAlphaMaskSkinnedV.glsl
- *
- * $LicenseInfo:firstyear=2021&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2011, 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
- * $/LicenseInfo$
- */
-
-uniform mat4 texture_matrix0;
-uniform mat4 modelview_matrix;
-uniform mat4 projection_matrix;
-uniform float shadow_target_width;
-
-ATTRIBUTE vec3 position;
-ATTRIBUTE vec4 diffuse_color;
-ATTRIBUTE vec2 texcoord0;
-
-VARYING vec4 post_pos;
-VARYING float target_pos_x;
-VARYING vec4 vertex_color;
-VARYING vec2 vary_texcoord0;
-
-void passTextureIndex();
-
-mat4 getObjectSkinnedTransform();
-
-void main()
-{
-	//transform vertex
-	vec4 pre_pos = vec4(position.xyz, 1.0);
-
-	mat4 mat = getObjectSkinnedTransform();
-	
-	mat = modelview_matrix * mat;
-	
-	vec4 pos = mat * pre_pos;
-	pos = projection_matrix * pos;
-
-	target_pos_x = 0.5 * (shadow_target_width - 1.0) * pos.x;
-
-	post_pos = pos;
-
-	gl_Position = pos;
-	
-	passTextureIndex();
-
-	vary_texcoord0 = (texture_matrix0 * vec4(texcoord0,0,1)).xy;
-	vertex_color = diffuse_color;
-}
diff --git a/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaMaskV.glsl b/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaMaskV.glsl
index 40f8fc9894..2249a7f239 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaMaskV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaMaskV.glsl
@@ -24,7 +24,12 @@
  */
 
 uniform mat4 texture_matrix0;
+#if defined(HAS_SKIN)
+uniform mat4 modelview_matrix;
+uniform mat4 projection_matrix;
+#else
 uniform mat4 modelview_projection_matrix;
+#endif
 uniform float shadow_target_width;
 
 ATTRIBUTE vec3 position;
@@ -38,11 +43,24 @@ VARYING vec2 vary_texcoord0;
 
 void passTextureIndex();
 
+#if defined(HAS_SKIN)
+mat4 getObjectSkinnedTransform();
+#endif
+
 void main()
 {
 	//transform vertex
+#if defined(HAS_SKIN)
+	vec4 pre_pos = vec4(position.xyz, 1.0);
+	mat4 mat = getObjectSkinnedTransform();
+	mat = modelview_matrix * mat;
+	vec4 pos = mat * pre_pos;
+	pos = projection_matrix * pos;
+#else
 	vec4 pre_pos = vec4(position.xyz, 1.0);
 	vec4 pos = modelview_projection_matrix * pre_pos;
+#endif
+
 	target_pos_x = 0.5 * (shadow_target_width - 1.0) * pos.x;
 
 	post_pos = pos;
-- 
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