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authorTofu Linden <tofu.linden@lindenlab.com>2010-05-09 15:02:10 +0100
committerTofu Linden <tofu.linden@lindenlab.com>2010-05-09 15:02:10 +0100
commit12d3ba4baee93bcb024fbeee0d6f05df6d02935f (patch)
tree890058e8315e803a0d2f740a9fe4bddcd53706f5 /indra/newview/app_settings/shaders/class2
parent08755849ab126c13580f3af38721f83cb5ce01ce (diff)
Rejig deferred normal-map packing a little, to double its accuracy for free.
Diffstat (limited to 'indra/newview/app_settings/shaders/class2')
-rw-r--r--indra/newview/app_settings/shaders/class2/deferred/blurLightF.glsl3
-rw-r--r--indra/newview/app_settings/shaders/class2/deferred/edgeF.glsl11
-rw-r--r--indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl3
-rw-r--r--indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl7
-rw-r--r--indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl3
-rw-r--r--indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl3
-rw-r--r--indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl3
7 files changed, 23 insertions, 10 deletions
diff --git a/indra/newview/app_settings/shaders/class2/deferred/blurLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/blurLightF.glsl
index 0fad5b4b50..d1c5d7cb19 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/blurLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/blurLightF.glsl
@@ -37,7 +37,8 @@ vec4 getPosition(vec2 pos_screen)
void main()
{
- vec3 norm = texture2DRect(normalMap, vary_fragcoord.xy).xyz*2.0-1.0;
+ 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;
vec4 ccol = texture2DRect(lightMap, vary_fragcoord.xy).rgba;
diff --git a/indra/newview/app_settings/shaders/class2/deferred/edgeF.glsl b/indra/newview/app_settings/shaders/class2/deferred/edgeF.glsl
index 02beddd43b..e32e9f4b32 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/edgeF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/edgeF.glsl
@@ -31,7 +31,8 @@ float getDepth(vec2 pos_screen)
void main()
{
- vec3 norm = texture2DRect(normalMap, vary_fragcoord.xy).xyz*2.0-1.0;
+ vec3 norm = texture2DRect(normalMap, vary_fragcoord.xy).xyz;
+ norm = vec3((norm.xy-0.5)*2.0,norm.z); // unpack norm
float depth = getDepth(vary_fragcoord.xy);
vec2 tc = vary_fragcoord.xy;
@@ -46,8 +47,12 @@ void main()
de = step(depth_cutoff, de);
vec2 ne;
- ne.x = dot(texture2DRect(normalMap, tc+vec2(-sc,-sc)).rgb*2.0-1.0, norm);
- ne.y = dot(texture2DRect(normalMap, tc+vec2(sc,sc)).rgb*2.0-1.0, norm);
+ vec3 nexnorm = texture2DRect(normalMap, tc+vec2(-sc,-sc)).rgb;
+ nexnorm = vec3((nexnorm.xy-0.5)*2.0,nexnorm.z); // unpack norm
+ ne.x = dot(nexnorm, norm);
+ vec3 neynorm = texture2DRect(normalMap, tc+vec2(sc,sc)).rgb;
+ neynorm = vec3((neynorm.xy-0.5)*2.0,neynorm.z); // unpack norm
+ ne.y = dot(neynorm, norm);
ne = 1.0-ne;
diff --git a/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl
index 5308e5bb1e..22ffb58c63 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl
@@ -129,7 +129,8 @@ void main()
shadow = min(sh[proj_shadow_idx]+shadow_fade, 1.0);
}
- vec3 norm = texture2DRect(normalMap, frag.xy).xyz*2.0-1.0;
+ vec3 norm = texture2DRect(normalMap, frag.xy).xyz;
+ norm = vec3((norm.xy-0.5)*2.0,norm.z); // unpack norm
norm = normalize(norm);
float l_dist = -dot(lv, proj_n);
diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
index bc84720b86..fd6ae2b960 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
@@ -258,7 +258,8 @@ void main()
vec2 tc = vary_fragcoord.xy;
float depth = texture2DRect(depthMap, tc.xy).a;
vec3 pos = getPosition_d(tc, depth).xyz;
- vec3 norm = texture2DRect(normalMap, tc).xyz*2.0-1.0;
+ vec3 norm = texture2DRect(normalMap, tc).xyz;
+ norm = vec3((norm.xy-0.5)*2.0,norm.z); // unpack norm
//vec3 nz = texture2D(noiseMap, vary_fragcoord.xy/128.0).xyz;
float da = max(dot(norm.xyz, vary_light.xyz), 0.0);
@@ -310,7 +311,9 @@ void main()
float refdepth = texture2DRect(depthMap, ref2d).a;
vec3 refpos = getPosition_d(ref2d, refdepth).xyz;
float refshad = texture2DRect(lightMap, ref2d).r;
- vec3 refn = normalize(texture2DRect(normalMap, ref2d).rgb * 2.0 - 1.0);
+ vec3 refn = texture2DRect(normalMap, ref2d).rgb;
+ refn = vec3((refn.xy-0.5)*2.0,refn.z); // unpack norm
+ refn = normalize(refn);
// figure out how appropriate our guess actually was
float refapprop = max(0.0, dot(-refnorm, normalize(pos - refpos)));
// darken reflections from points which face away from the reflected ray - our guess was a back-face
diff --git a/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl
index eeaecc157f..8a90199b7c 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl
@@ -82,7 +82,8 @@ void main()
discard;
}
- vec3 norm = texture2DRect(normalMap, frag.xy).xyz*2.0-1.0;
+ vec3 norm = texture2DRect(normalMap, frag.xy).xyz;
+ norm = vec3((norm.xy-0.5)*2.0,norm.z); // unpack norm
norm = normalize(norm);
float l_dist = -dot(lv, proj_n);
diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
index 46db3c990c..195a20e9dd 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightF.glsl
@@ -104,8 +104,9 @@ 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*2.0-1.0;
+ vec3 norm = nmap4.xyz;
/*if (pos.z == 0.0) // do nothing for sky *FIX: REMOVE THIS IF/WHEN THE POSITION MAP IS BEING USED AS A STENCIL
{
diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl
index a0dfc96f14..4e33a1af45 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl
@@ -164,8 +164,9 @@ 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*2.0-1.0;
+ vec3 norm = nmap4.xyz;
/*if (pos.z == 0.0) // do nothing for sky *FIX: REMOVE THIS IF/WHEN THE POSITION MAP IS BEING USED AS A STENCIL
{