summaryrefslogtreecommitdiff
path: root/indra/newview/app_settings/shaders/class3/deferred/waterV.glsl
diff options
context:
space:
mode:
Diffstat (limited to 'indra/newview/app_settings/shaders/class3/deferred/waterV.glsl')
-rw-r--r--indra/newview/app_settings/shaders/class3/deferred/waterV.glsl95
1 files changed, 95 insertions, 0 deletions
diff --git a/indra/newview/app_settings/shaders/class3/deferred/waterV.glsl b/indra/newview/app_settings/shaders/class3/deferred/waterV.glsl
new file mode 100644
index 0000000000..02000d90ca
--- /dev/null
+++ b/indra/newview/app_settings/shaders/class3/deferred/waterV.glsl
@@ -0,0 +1,95 @@
+/**
+ * @file waterV.glsl
+ *
+ * $LicenseInfo:firstyear=2007&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2007, 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 modelview_matrix;
+uniform mat4 modelview_projection_matrix;
+
+ATTRIBUTE vec3 position;
+
+
+uniform vec2 d1;
+uniform vec2 d2;
+uniform float time;
+uniform vec3 eyeVec;
+uniform float waterHeight;
+
+VARYING vec4 refCoord;
+VARYING vec4 littleWave;
+VARYING vec4 view;
+
+VARYING vec4 vary_position;
+
+float wave(vec2 v, float t, float f, vec2 d, float s)
+{
+ return (dot(d, v)*f + t*s)*f;
+}
+
+void main()
+{
+ //transform vertex
+ vec4 pos = vec4(position.xyz, 1.0);
+ mat4 modelViewProj = modelview_projection_matrix;
+
+ vec4 oPosition;
+
+ //get view vector
+ vec3 oEyeVec;
+ oEyeVec.xyz = pos.xyz-eyeVec;
+
+ float d = length(oEyeVec.xy);
+ float ld = min(d, 2560.0);
+
+ pos.xy = eyeVec.xy + oEyeVec.xy/d*ld;
+ view.xyz = oEyeVec;
+
+ d = clamp(ld/1536.0-0.5, 0.0, 1.0);
+ d *= d;
+
+ oPosition = vec4(position, 1.0);
+ oPosition.z = mix(oPosition.z, max(eyeVec.z*0.75, 0.0), d);
+ vary_position = modelview_matrix * oPosition;
+ oPosition = modelViewProj * oPosition;
+
+ refCoord.xyz = oPosition.xyz + vec3(0,0,0.2);
+
+ //get wave position parameter (create sweeping horizontal waves)
+ vec3 v = pos.xyz;
+ v.x += (cos(v.x*0.08/*+time*0.01*/)+sin(v.y*0.02))*6.0;
+
+ //push position for further horizon effect.
+ pos.xyz = oEyeVec.xyz*(waterHeight/oEyeVec.z);
+ pos.w = 1.0;
+ pos = modelview_matrix*pos;
+
+ //pass wave parameters to pixel shader
+ vec2 bigWave = (v.xy) * vec2(0.04,0.04) + d1 * time * 0.055;
+ //get two normal map (detail map) texture coordinates
+ littleWave.xy = (v.xy) * vec2(0.45, 0.9) + d2 * time * 0.13;
+ littleWave.zw = (v.xy) * vec2(0.1, 0.2) + d1 * time * 0.1;
+ view.w = bigWave.y;
+ refCoord.w = bigWave.x;
+
+ gl_Position = oPosition;
+}