From e82c0561fa5fa157efec445362b09360346ed382 Mon Sep 17 00:00:00 2001 From: Dave Parks Date: Fri, 4 Nov 2011 16:14:43 -0500 Subject: SH-2652 Faster depth of field --- .../app_settings/shaders/class1/deferred/cofF.glsl | 86 ++++++++++++++++++++++ 1 file changed, 86 insertions(+) create mode 100644 indra/newview/app_settings/shaders/class1/deferred/cofF.glsl (limited to 'indra/newview/app_settings/shaders/class1/deferred/cofF.glsl') diff --git a/indra/newview/app_settings/shaders/class1/deferred/cofF.glsl b/indra/newview/app_settings/shaders/class1/deferred/cofF.glsl new file mode 100644 index 0000000000..81f00f7d0f --- /dev/null +++ b/indra/newview/app_settings/shaders/class1/deferred/cofF.glsl @@ -0,0 +1,86 @@ +/** + * @file cofF.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 + * $/LicenseInfo$ + */ + +#extension GL_ARB_texture_rectangle : enable + +#ifdef DEFINE_GL_FRAGCOLOR +out vec4 gl_FragColor; +#endif + +uniform sampler2DRect diffuseRect; +uniform sampler2DRect depthMap; +uniform sampler2D bloomMap; + +uniform float depth_cutoff; +uniform float norm_cutoff; +uniform float focal_distance; +uniform float blur_constant; +uniform float tan_pixel_angle; +uniform float magnification; + +uniform mat4 inv_proj; +uniform vec2 screen_res; + +VARYING vec2 vary_fragcoord; + +float getDepth(vec2 pos_screen) +{ + float z = texture2DRect(depthMap, pos_screen.xy).r; + z = z*2.0-1.0; + vec4 ndc = vec4(0.0, 0.0, z, 1.0); + vec4 p = inv_proj*ndc; + return p.z/p.w; +} + +float calc_cof(float depth) +{ + float sc = abs(depth-focal_distance)/-depth*blur_constant; + + sc /= magnification; + + // tan_pixel_angle = pixel_length/-depth; + float pixel_length = tan_pixel_angle*-focal_distance; + + sc = sc/pixel_length; + sc *= 1.414; + + return sc; +} + +void main() +{ + vec2 tc = vary_fragcoord.xy; + + float depth = getDepth(tc); + + vec4 diff = texture2DRect(diffuseRect, vary_fragcoord.xy); + + float sc = calc_cof(depth); + sc = min(abs(sc), 10.0); + + vec4 bloom = texture2D(bloomMap, vary_fragcoord.xy/screen_res); + gl_FragColor.rgb = diff.rgb + bloom.rgb; + gl_FragColor.a = sc/10.f; +} -- cgit v1.2.3