diff options
author | Todd Stinson <stinson@lindenlab.com> | 2011-12-13 11:15:18 -0800 |
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committer | Todd Stinson <stinson@lindenlab.com> | 2011-12-13 11:15:18 -0800 |
commit | 9d1db4f19ae7ca044e47d0fe4e605e14882351c5 (patch) | |
tree | 2d499d53b60b2486f1e6666f8b9fe2063f984d22 /indra/newview/app_settings/shaders/class2/deferred/spotLightMSF.glsl | |
parent | 817c97c2f836948f210599a6f67e36a411b22c21 (diff) | |
parent | dbc91a7fac9513bdd879c5c2dc82208e08eaad2d (diff) |
Pull and merge from https://bitbucket.org/lindenlab/viewer-development.
Diffstat (limited to 'indra/newview/app_settings/shaders/class2/deferred/spotLightMSF.glsl')
-rw-r--r-- | indra/newview/app_settings/shaders/class2/deferred/spotLightMSF.glsl | 263 |
1 files changed, 0 insertions, 263 deletions
diff --git a/indra/newview/app_settings/shaders/class2/deferred/spotLightMSF.glsl b/indra/newview/app_settings/shaders/class2/deferred/spotLightMSF.glsl deleted file mode 100644 index 4962e73e39..0000000000 --- a/indra/newview/app_settings/shaders/class2/deferred/spotLightMSF.glsl +++ /dev/null @@ -1,263 +0,0 @@ -/** - * @file multiSpotLightF.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 -#extension GL_ARB_texture_multisample : enable - -uniform sampler2DMS diffuseRect; -uniform sampler2DMS specularRect; -uniform sampler2DMS depthMap; -uniform sampler2DMS normalMap; -uniform sampler2DRect lightMap; -uniform sampler2D noiseMap; -uniform sampler2D lightFunc; -uniform sampler2D projectionMap; - -uniform mat4 proj_mat; //screen space to light space -uniform float proj_near; //near clip for projection -uniform vec3 proj_p; //plane projection is emitting from (in screen space) -uniform vec3 proj_n; -uniform float proj_focus; //distance from plane to begin blurring -uniform float proj_lod; //(number of mips in proj map) -uniform float proj_range; //range between near clip and far clip plane of projection -uniform float proj_ambient_lod; -uniform float proj_ambiance; -uniform float near_clip; -uniform float far_clip; - -uniform vec3 proj_origin; //origin of projection to be used for angular attenuation -uniform float sun_wash; -uniform int proj_shadow_idx; -uniform float shadow_fade; - -varying vec4 vary_light; - -varying vec4 vary_fragcoord; -uniform vec2 screen_res; - -uniform mat4 inv_proj; - -vec4 texture2DLodSpecular(sampler2D projectionMap, vec2 tc, float lod) -{ - vec4 ret = texture2DLod(projectionMap, tc, lod); - - vec2 dist = tc-vec2(0.5); - - float det = max(1.0-lod/(proj_lod*0.5), 0.0); - - float d = dot(dist,dist); - - ret *= min(clamp((0.25-d)/0.25, 0.0, 1.0)+det, 1.0); - - return ret; -} - -vec4 texture2DLodDiffuse(sampler2D projectionMap, vec2 tc, float lod) -{ - vec4 ret = texture2DLod(projectionMap, tc, lod); - - vec2 dist = vec2(0.5) - abs(tc-vec2(0.5)); - - float det = min(lod/(proj_lod*0.5), 1.0); - - float d = min(dist.x, dist.y); - - float edge = 0.25*det; - - ret *= clamp(d/edge, 0.0, 1.0); - - return ret; -} - -vec4 texture2DLodAmbient(sampler2D projectionMap, vec2 tc, float lod) -{ - vec4 ret = texture2DLod(projectionMap, tc, lod); - - vec2 dist = tc-vec2(0.5); - - float d = dot(dist,dist); - - ret *= min(clamp((0.25-d)/0.25, 0.0, 1.0), 1.0); - - return ret; -} - - -vec4 getPosition(ivec2 pos_screen, int sample) -{ - float depth = texelFetch(depthMap, pos_screen, sample).r; - vec2 sc = vec2(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() -{ - vec4 frag = vary_fragcoord; - frag.xyz /= frag.w; - frag.xyz = frag.xyz*0.5+0.5; - frag.xy *= screen_res; - ivec2 itc = ivec2(frag.xy); - - vec3 fcol = vec3(0,0,0); - int wght = 0; - - float shadow = 1.0; - - if (proj_shadow_idx >= 0) - { - vec4 shd = texture2DRect(lightMap, frag.xy); - float sh[2]; - sh[0] = shd.b; - sh[1] = shd.a; - shadow = min(sh[proj_shadow_idx]+shadow_fade, 1.0); - } - - for (int i = 0; i < samples; i++) - { - vec3 pos = getPosition(itc, i).xyz; - vec3 lv = vary_light.xyz-pos.xyz; - float dist2 = dot(lv,lv); - dist2 /= vary_light.w; - if (dist2 <= 1.0) - { - vec3 norm = texelFetch(normalMap, itc, i).xyz; - norm = vec3((norm.xy-0.5)*2.0,norm.z); // unpack norm - - norm = normalize(norm); - float l_dist = -dot(lv, proj_n); - - vec4 proj_tc = (proj_mat * vec4(pos.xyz, 1.0)); - if (proj_tc.z >= 0.0) - { - proj_tc.xyz /= proj_tc.w; - - float fa = gl_Color.a+1.0; - float dist_atten = min(1.0-(dist2-1.0*(1.0-fa))/fa, 1.0); - if (dist_atten > 0.0) - { - lv = proj_origin-pos.xyz; - lv = normalize(lv); - float da = dot(norm, lv); - - vec3 col = vec3(0,0,0); - - vec3 diff_tex = texelFetch(diffuseRect, itc, i).rgb; - - float noise = texture2D(noiseMap, frag.xy/128.0).b; - if (proj_tc.z > 0.0 && - proj_tc.x < 1.0 && - proj_tc.y < 1.0 && - proj_tc.x > 0.0 && - proj_tc.y > 0.0) - { - float lit = 0.0; - float amb_da = proj_ambiance; - - if (da > 0.0) - { - float diff = clamp((l_dist-proj_focus)/proj_range, 0.0, 1.0); - float lod = diff * proj_lod; - - vec4 plcol = texture2DLodDiffuse(projectionMap, proj_tc.xy, lod); - - vec3 lcol = gl_Color.rgb * plcol.rgb * plcol.a; - - lit = da * dist_atten * noise; - - col = lcol*lit*diff_tex*shadow; - amb_da += (da*0.5)*(1.0-shadow)*proj_ambiance; - } - - //float diff = clamp((proj_range-proj_focus)/proj_range, 0.0, 1.0); - vec4 amb_plcol = texture2DLodAmbient(projectionMap, proj_tc.xy, proj_lod); - - amb_da += (da*da*0.5+0.5)*proj_ambiance; - - amb_da *= dist_atten * noise; - - amb_da = min(amb_da, 1.0-lit); - - col += amb_da*gl_Color.rgb*diff_tex.rgb*amb_plcol.rgb*amb_plcol.a; - } - - - vec4 spec = texelFetch(specularRect, itc, i); - if (spec.a > 0.0) - { - vec3 ref = reflect(normalize(pos), norm); - - //project from point pos in direction ref to plane proj_p, proj_n - vec3 pdelta = proj_p-pos; - float ds = dot(ref, proj_n); - - if (ds < 0.0) - { - vec3 pfinal = pos + ref * dot(pdelta, proj_n)/ds; - - vec4 stc = (proj_mat * vec4(pfinal.xyz, 1.0)); - - if (stc.z > 0.0) - { - stc.xy /= stc.w; - - float fatten = clamp(spec.a*spec.a+spec.a*0.5, 0.25, 1.0); - - stc.xy = (stc.xy - vec2(0.5)) * fatten + vec2(0.5); - - if (stc.x < 1.0 && - stc.y < 1.0 && - stc.x > 0.0 && - stc.y > 0.0) - { - vec4 scol = texture2DLodSpecular(projectionMap, stc.xy, proj_lod-spec.a*proj_lod); - col += dist_atten*scol.rgb*gl_Color.rgb*scol.a*spec.rgb*shadow; - } - } - } - } - - fcol += col; - wght++; - } - } - } - } - - if (wght <= 0) - { - discard; - } - - gl_FragColor.rgb = fcol/wght; - gl_FragColor.a = 0.0; -} |