diff options
Diffstat (limited to 'indra/newview/app_settings/shaders/class3/deferred/indirect.glsl')
| -rw-r--r-- | indra/newview/app_settings/shaders/class3/deferred/indirect.glsl | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/indra/newview/app_settings/shaders/class3/deferred/indirect.glsl b/indra/newview/app_settings/shaders/class3/deferred/indirect.glsl new file mode 100644 index 0000000000..33c5667cae --- /dev/null +++ b/indra/newview/app_settings/shaders/class3/deferred/indirect.glsl @@ -0,0 +1,44 @@ +/** + * @file class3/deferred/indirect.glsl + * + * $LicenseInfo:firstyear=2011&license=viewerlgpl$ + * 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 + * $/LicenseInfo$ + */ + +/*[EXTRA_CODE_HERE]*/ + +uniform sampler2D sh_input_r; +uniform sampler2D sh_input_g; +uniform sampler2D sh_input_b; + +vec3 GetIndirect(vec3 norm) +{ + vec4 l1tap = vec4(1.0/sqrt(4*3.14159265), sqrt(3)/sqrt(4*3.14159265), sqrt(3)/sqrt(4*3.14159265), sqrt(3)/sqrt(4*3.14159265)); + vec4 l1r = texture2D(sh_input_r, vec2(0,0)); + vec4 l1g = texture2D(sh_input_g, vec2(0,0)); + vec4 l1b = texture2D(sh_input_b, vec2(0,0)); + vec3 indirect = vec3(dot(l1r, l1tap * vec4(1, norm.xyz)), + dot(l1g, l1tap * vec4(1, norm.xyz)), + dot(l1b, l1tap * vec4(1, norm.xyz))); + indirect = clamp(indirect, vec3(0), vec3(1.0)); + return indirect; +} + |