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path: root/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl
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Diffstat (limited to 'indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl')
-rwxr-xr-x[-rw-r--r--]indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl110
1 files changed, 61 insertions, 49 deletions
diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl
index 02075a7687..b5ff6404ea 100644..100755
--- a/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl
@@ -34,10 +34,10 @@ out vec4 frag_color;
uniform sampler2DRect depthMap;
uniform sampler2DRect normalMap;
-uniform sampler2DRectShadow shadowMap0;
-uniform sampler2DRectShadow shadowMap1;
-uniform sampler2DRectShadow shadowMap2;
-uniform sampler2DRectShadow shadowMap3;
+uniform sampler2DShadow shadowMap0;
+uniform sampler2DShadow shadowMap1;
+uniform sampler2DShadow shadowMap2;
+uniform sampler2DShadow shadowMap3;
uniform sampler2DShadow shadowMap4;
uniform sampler2DShadow shadowMap5;
uniform sampler2D noiseMap;
@@ -55,16 +55,34 @@ VARYING vec2 vary_fragcoord;
uniform mat4 inv_proj;
uniform vec2 screen_res;
-uniform vec2 shadow_res;
uniform vec2 proj_shadow_res;
uniform vec3 sun_dir;
+uniform vec2 shadow_res;
+
uniform float shadow_bias;
uniform float shadow_offset;
uniform float spot_shadow_bias;
uniform float spot_shadow_offset;
+vec2 encode_normal(vec3 n)
+{
+ float f = sqrt(8 * n.z + 8);
+ return n.xy / f + 0.5;
+}
+
+vec3 decode_normal (vec2 enc)
+{
+ vec2 fenc = enc*4-2;
+ float f = dot(fenc,fenc);
+ float g = sqrt(1-f/4);
+ vec3 n;
+ n.xy = fenc*g;
+ n.z = 1-f/2;
+ return n;
+}
+
vec4 getPosition(vec2 pos_screen)
{
float depth = texture2DRect(depthMap, pos_screen.xy).r;
@@ -90,7 +108,7 @@ vec2 getKern(int i)
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;
-
+
return kern[i];
}
@@ -139,42 +157,42 @@ float calcAmbientOcclusion(vec4 pos, vec3 norm)
return min(ret, 1.0);
}
-float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl)
+float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl, vec2 pos_screen)
{
stc.xyz /= stc.w;
- stc.z += shadow_bias*scl;
+ stc.z += shadow_bias;
+
+ stc.x = floor(stc.x*shadow_res.x + fract(pos_screen.y*0.666666666))/shadow_res.x;
+ float cs = shadow2D(shadowMap, stc.xyz).x;
- 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;
+ shadow += shadow2D(shadowMap, stc.xyz+vec3(2.0/shadow_res.x, 1.5/shadow_res.y, 0.0)).x;
+ shadow += shadow2D(shadowMap, stc.xyz+vec3(1.0/shadow_res.x, -1.5/shadow_res.y, 0.0)).x;
+ shadow += shadow2D(shadowMap, stc.xyz+vec3(-1.0/shadow_res.x, 1.5/shadow_res.y, 0.0)).x;
+ shadow += shadow2D(shadowMap, stc.xyz+vec3(-2.0/shadow_res.x, -1.5/shadow_res.y, 0.0)).x;
+
+ return shadow*0.2;
}
-float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl)
+float pcfSpotShadow(sampler2DShadow shadowMap, vec4 stc, float scl, vec2 pos_screen)
{
stc.xyz /= stc.w;
stc.z += spot_shadow_bias*scl;
-
+ stc.x = floor(proj_shadow_res.x * stc.x + fract(pos_screen.y*0.666666666)) / proj_shadow_res.x; // snap
+
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);
+ vec2 off = 1.0/proj_shadow_res;
+ off.y *= 1.5;
- return shadow/5.0;
-
- //return shadow;
+ shadow += shadow2D(shadowMap, stc.xyz+vec3(off.x*2.0, off.y, 0.0)).x;
+ shadow += shadow2D(shadowMap, stc.xyz+vec3(off.x, -off.y, 0.0)).x;
+ shadow += shadow2D(shadowMap, stc.xyz+vec3(-off.x, off.y, 0.0)).x;
+ shadow += shadow2D(shadowMap, stc.xyz+vec3(-off.x*2.0, -off.y, 0.0)).x;
+
+ return shadow*0.2;
}
void main()
@@ -185,11 +203,9 @@ void main()
vec4 pos = getPosition(pos_screen);
- vec4 nmap4 = texture2DRect(normalMap, pos_screen);
- nmap4 = vec4((nmap4.xy-0.5)*2.0,nmap4.z,nmap4.w); // unpack norm
- float displace = nmap4.w;
- vec3 norm = nmap4.xyz;
-
+ vec3 norm = texture2DRect(normalMap, pos_screen).xyz;
+ norm = decode_normal(norm.xy); // unpack norm
+
/*if (pos.z == 0.0) // do nothing for sky *FIX: REMOVE THIS IF/WHEN THE POSITION MAP IS BEING USED AS A STENCIL
{
frag_color = vec4(0.0); // doesn't matter
@@ -198,8 +214,8 @@ void main()
float shadow = 0.0;
float dp_directional_light = max(0.0, dot(norm, sun_dir.xyz));
-
- vec3 shadow_pos = pos.xyz + displace*norm;
+
+ vec3 shadow_pos = pos.xyz;
vec3 offset = sun_dir.xyz * (1.0-dp_directional_light);
vec4 spos = vec4(shadow_pos+offset*shadow_offset, 1.0);
@@ -223,11 +239,10 @@ void main()
if (spos.z < near_split.z)
{
lpos = shadow_matrix[3]*spos;
- lpos.xy *= shadow_res;
-
+
float w = 1.0;
w -= max(spos.z-far_split.z, 0.0)/transition_domain.z;
- shadow += pcfShadow(shadowMap3, lpos, 0.25)*w;
+ shadow += pcfShadow(shadowMap3, lpos, 0.25, pos_screen)*w;
weight += w;
shadow += max((pos.z+shadow_clip.z)/(shadow_clip.z-shadow_clip.w)*2.0-1.0, 0.0);
}
@@ -235,36 +250,33 @@ void main()
if (spos.z < near_split.y && spos.z > far_split.z)
{
lpos = shadow_matrix[2]*spos;
- lpos.xy *= shadow_res;
-
+
float w = 1.0;
w -= max(spos.z-far_split.y, 0.0)/transition_domain.y;
w -= max(near_split.z-spos.z, 0.0)/transition_domain.z;
- shadow += pcfShadow(shadowMap2, lpos, 0.75)*w;
+ shadow += pcfShadow(shadowMap2, lpos, 0.5, pos_screen)*w;
weight += w;
}
if (spos.z < near_split.x && spos.z > far_split.y)
{
lpos = shadow_matrix[1]*spos;
- lpos.xy *= shadow_res;
-
+
float w = 1.0;
w -= max(spos.z-far_split.x, 0.0)/transition_domain.x;
w -= max(near_split.y-spos.z, 0.0)/transition_domain.y;
- shadow += pcfShadow(shadowMap1, lpos, 0.75)*w;
+ shadow += pcfShadow(shadowMap1, lpos, 0.75, pos_screen)*w;
weight += w;
}
if (spos.z > far_split.x)
{
lpos = shadow_matrix[0]*spos;
- lpos.xy *= shadow_res;
-
+
float w = 1.0;
w -= max(near_split.x-spos.z, 0.0)/transition_domain.x;
- shadow += pcfShadow(shadowMap0, lpos, 1.0)*w;
+ shadow += pcfShadow(shadowMap0, lpos, 1.0, pos_screen)*w;
weight += w;
}
@@ -298,11 +310,11 @@ void main()
//spotlight shadow 1
vec4 lpos = shadow_matrix[4]*spos;
- frag_color[2] = pcfShadow(shadowMap4, lpos, 0.8);
+ frag_color[2] = pcfSpotShadow(shadowMap4, lpos, 0.8, pos_screen);
//spotlight shadow 2
lpos = shadow_matrix[5]*spos;
- frag_color[3] = pcfShadow(shadowMap5, lpos, 0.8);
+ frag_color[3] = pcfSpotShadow(shadowMap5, lpos, 0.8, pos_screen);
//frag_color.rgb = pos.xyz;
//frag_color.b = shadow;