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-rw-r--r--indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOMSF.glsl258
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diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOMSF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOMSF.glsl
deleted file mode 100644
index 0fd7b7525d..0000000000
--- a/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOMSF.glsl
+++ /dev/null
@@ -1,258 +0,0 @@
-/**
- * @file sunLightSSAOF.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
-
-//class 2 -- shadows and SSAO
-
-uniform sampler2DMS depthMap;
-uniform sampler2DMS normalMap;
-uniform sampler2DRectShadow shadowMap0;
-uniform sampler2DRectShadow shadowMap1;
-uniform sampler2DRectShadow shadowMap2;
-uniform sampler2DRectShadow shadowMap3;
-uniform sampler2DShadow shadowMap4;
-uniform sampler2DShadow shadowMap5;
-uniform sampler2D noiseMap;
-
-// Inputs
-uniform mat4 shadow_matrix[6];
-uniform vec4 shadow_clip;
-uniform float ssao_radius;
-uniform float ssao_max_radius;
-uniform float ssao_factor;
-uniform float ssao_factor_inv;
-
-varying vec2 vary_fragcoord;
-varying vec4 vary_light;
-
-uniform mat4 inv_proj;
-uniform vec2 screen_res;
-uniform vec2 shadow_res;
-uniform vec2 proj_shadow_res;
-
-uniform float shadow_bias;
-uniform float shadow_offset;
-
-uniform float spot_shadow_bias;
-uniform float spot_shadow_offset;
-
-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;
-}
-
-//calculate decreases in ambient lighting when crowded out (SSAO)
-float calcAmbientOcclusion(vec4 pos, vec3 norm, int sample)
-{
- float ret = 1.0;
-
- vec2 kern[8];
- // exponentially (^2) distant occlusion samples spread around origin
- kern[0] = vec2(-1.0, 0.0) * 0.125*0.125;
- kern[1] = vec2(1.0, 0.0) * 0.250*0.250;
- kern[2] = vec2(0.0, 1.0) * 0.375*0.375;
- kern[3] = vec2(0.0, -1.0) * 0.500*0.500;
- kern[4] = vec2(0.7071, 0.7071) * 0.625*0.625;
- kern[5] = vec2(-0.7071, -0.7071) * 0.750*0.750;
- kern[6] = vec2(-0.7071, 0.7071) * 0.875*0.875;
- kern[7] = vec2(0.7071, -0.7071) * 1.000*1.000;
-
- vec2 pos_screen = vary_fragcoord.xy;
- vec3 pos_world = pos.xyz;
- vec2 noise_reflect = texture2D(noiseMap, vary_fragcoord.xy/128.0).xy;
-
- float angle_hidden = 0.0;
- int points = 0;
-
- float scale = min(ssao_radius / -pos_world.z, ssao_max_radius);
-
- // it was found that keeping # of samples a constant was the fastest, probably due to compiler optimizations (unrolling?)
- for (int i = 0; i < 8; i++)
- {
- ivec2 samppos_screen = ivec2(pos_screen + scale * reflect(kern[i], noise_reflect));
- vec3 samppos_world = getPosition(samppos_screen, sample).xyz;
-
- vec3 diff = pos_world - samppos_world;
- float dist2 = dot(diff, diff);
-
- // assume each sample corresponds to an occluding sphere with constant radius, constant x-sectional area
- // --> solid angle shrinking by the square of distance
- //radius is somewhat arbitrary, can approx with just some constant k * 1 / dist^2
- //(k should vary inversely with # of samples, but this is taken care of later)
-
- angle_hidden = angle_hidden + float(dot((samppos_world - 0.05*norm - pos_world), norm) > 0.0) * min(1.0/dist2, ssao_factor_inv);
-
- // 'blocked' samples (significantly closer to camera relative to pos_world) are "no data", not "no occlusion"
- points = points + int(diff.z > -1.0);
- }
-
- angle_hidden = min(ssao_factor*angle_hidden/float(points), 1.0);
-
- ret = (1.0 - (float(points != 0) * angle_hidden));
-
- return min(ret, 1.0);
-}
-
-float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl)
-{
- stc.xyz /= stc.w;
- stc.z += shadow_bias*scl;
-
- float cs = shadow2DRect(shadowMap, stc.xyz).x;
- float shadow = cs;
-
- shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(1.5, 1.5, 0.0)).x, cs);
- shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(1.5, -1.5, 0.0)).x, cs);
- shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(-1.5, 1.5, 0.0)).x, cs);
- shadow += max(shadow2DRect(shadowMap, stc.xyz+vec3(-1.5, -1.5, 0.0)).x, cs);
-
- return shadow/5.0;
-
- //return shadow;
-}
-
-float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl)
-{
- stc.xyz /= stc.w;
- stc.z += spot_shadow_bias*scl;
-
- float cs = shadow2D(shadowMap, stc.xyz).x;
- float shadow = cs;
-
- vec2 off = 1.5/proj_shadow_res;
-
- shadow += max(shadow2D(shadowMap, stc.xyz+vec3(off.x, off.y, 0.0)).x, cs);
- shadow += max(shadow2D(shadowMap, stc.xyz+vec3(off.x, -off.y, 0.0)).x, cs);
- shadow += max(shadow2D(shadowMap, stc.xyz+vec3(-off.x, off.y, 0.0)).x, cs);
- shadow += max(shadow2D(shadowMap, stc.xyz+vec3(-off.x, -off.y, 0.0)).x, cs);
-
-
- return shadow/5.0;
-
- //return shadow;
-}
-
-void main()
-{
- vec2 pos_screen = vary_fragcoord.xy;
- ivec2 itc = ivec2(pos_screen);
- vec4 fcol = vec4(0,0,0,0);
-
- for (int i = 0; i < samples; i++)
- {
- vec4 pos = getPosition(itc, i);
-
- vec4 nmap4 = texelFetch(normalMap, itc, i);
- nmap4 = vec4((nmap4.xy-0.5)*2.0,nmap4.z,nmap4.w); // unpack norm
- float displace = nmap4.w;
- vec3 norm = nmap4.xyz;
-
- float shadow = 1.0;
- float dp_directional_light = max(0.0, dot(norm, vary_light.xyz));
-
- vec3 shadow_pos = pos.xyz + displace*norm;
- vec3 offset = vary_light.xyz * (1.0-dp_directional_light);
-
- vec4 spos = vec4(shadow_pos+offset*shadow_offset, 1.0);
-
- if (spos.z > -shadow_clip.w)
- {
- if (dp_directional_light == 0.0)
- {
- // if we know this point is facing away from the sun then we know it's in shadow without having to do a squirrelly shadow-map lookup
- shadow = 0.0;
- }
- else
- {
- vec4 lpos;
-
- if (spos.z < -shadow_clip.z)
- {
- lpos = shadow_matrix[3]*spos;
- lpos.xy *= shadow_res;
- shadow = pcfShadow(shadowMap3, lpos, 0.25);
- shadow += max((pos.z+shadow_clip.z)/(shadow_clip.z-shadow_clip.w)*2.0-1.0, 0.0);
- }
- else if (spos.z < -shadow_clip.y)
- {
- lpos = shadow_matrix[2]*spos;
- lpos.xy *= shadow_res;
- shadow = pcfShadow(shadowMap2, lpos, 0.5);
- }
- else if (spos.z < -shadow_clip.x)
- {
- lpos = shadow_matrix[1]*spos;
- lpos.xy *= shadow_res;
- shadow = pcfShadow(shadowMap1, lpos, 0.75);
- }
- else
- {
- lpos = shadow_matrix[0]*spos;
- lpos.xy *= shadow_res;
- shadow = pcfShadow(shadowMap0, lpos, 1.0);
- }
-
- // take the most-shadowed value out of these two:
- // * the blurred sun shadow in the light (shadow) map
- // * an unblurred dot product between the sun and this norm
- // the goal is to err on the side of most-shadow to fill-in shadow holes and reduce artifacting
- shadow = min(shadow, dp_directional_light);
-
- }
- }
- else
- {
- // more distant than the shadow map covers
- shadow = 1.0;
- }
-
-
- fcol[0] += shadow;
- fcol[1] += calcAmbientOcclusion(pos, norm, i);
-
- spos.xyz = shadow_pos+offset*spot_shadow_offset;
-
- //spotlight shadow 1
- vec4 lpos = shadow_matrix[4]*spos;
- fcol[2] += pcfShadow(shadowMap4, lpos, 0.8);
-
- //spotlight shadow 2
- lpos = shadow_matrix[5]*spos;
- fcol[3] += pcfShadow(shadowMap5, lpos, 0.8);
- }
-
- gl_FragColor = fcol / samples;
-}
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