/indra/newview/app_settings/shaders/class1/deferred/postgiF.glsl
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Possible License(s): LGPL-2.1
- /**
- * @file postgiF.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
- * $/LicenseInfo$
- */
- #ifdef DEFINE_GL_FRAGCOLOR
- out vec4 gl_FragColor;
- #endif
-
- uniform sampler2DRect depthMap;
- uniform sampler2DRect normalMap;
- uniform sampler2DRect giLightMap;
- uniform sampler2D noiseMap;
- uniform vec2 kern[32];
- uniform float dist_factor;
- uniform float blur_size;
- uniform vec2 delta;
- uniform int kern_length;
- uniform float kern_scale;
- uniform vec3 blur_quad;
- VARYING vec2 vary_fragcoord;
- uniform mat4 inv_proj;
- uniform vec2 screen_res;
- vec4 getPosition(vec2 pos_screen)
- {
- float depth = texture2DRect(depthMap, pos_screen.xy).a;
- vec2 sc = pos_screen.xy*2.0;
- sc /= screen_res;
- sc -= vec2(1.0,1.0);
- vec4 ndc = vec4(sc.x, sc.y, 2.0*depth-1.0, 1.0);
- vec4 pos = inv_proj * ndc;
- pos /= pos.w;
- pos.w = 1.0;
- return pos;
- }
- void main()
- {
- vec3 norm = texture2DRect(normalMap, vary_fragcoord.xy).xyz;
- norm = vec3((norm.xy-0.5)*2.0,norm.z); // unpack norm
- vec3 pos = getPosition(vary_fragcoord.xy).xyz;
-
- vec3 ccol = texture2DRect(giLightMap, vary_fragcoord.xy).rgb;
- vec2 dlt = kern_scale * delta/(1.0+norm.xy*norm.xy);
- dlt /= max(-pos.z*dist_factor, 1.0);
- float defined_weight = kern[0].x;
- vec3 col = vec3(0.0);
-
- for (int i = 0; i < kern_length; i++)
- {
- vec2 tc = vary_fragcoord.xy + kern[i].y*dlt;
- vec3 sampNorm = texture2DRect(normalMap, tc.xy).xyz;
- sampNorm = vec3((sampNorm.xy-0.5)*2.0,sampNorm.z); // unpack norm
-
- float d = dot(norm.xyz, sampNorm);
-
- if (d > 0.8)
- {
- vec3 samppos = getPosition(tc.xy).xyz;
- samppos -= pos;
- if (dot(samppos,samppos) < -0.05*pos.z)
- {
- col += texture2DRect(giLightMap, tc).rgb*kern[i].x;
- defined_weight += kern[i].x;
- }
- }
- }
- col /= defined_weight;
-
- //col = ccol;
-
- col = col*col*blur_quad.x + col*blur_quad.y + blur_quad.z;
-
- gl_FragColor.rgb = col;
- }