diff options
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.glsl | 95 |
1 files changed, 62 insertions, 33 deletions
diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl index dfe108eb01..01e34ed792 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 +55,51 @@ 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; +#ifdef SINGLE_FP_ONLY +vec2 encode_normal(vec3 n) +{ + vec2 sn; + sn.xy = (n.xy * vec2(0.5f,0.5f)) + vec2(0.5f,0.5f); + return sn; +} + +vec3 decode_normal (vec2 enc) +{ + vec3 n; + n.xy = (enc.xy * vec2(2.0f,2.0f)) - vec2(1.0f,1.0f); + n.z = sqrt(1.0f - dot(n.xy,n.xy)); + return n; +} +#else +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; +} +#endif + vec4 getPosition(vec2 pos_screen) { float depth = texture2DRect(depthMap, pos_screen.xy).r; @@ -139,30 +174,30 @@ float calcAmbientOcclusion(vec4 pos, vec3 norm) return min(ret, 1.0); } -float pcfShadow(sampler2DRectShadow shadowMap, vec4 stc, float scl, vec2 pos_screen) +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 + fract(pos_screen.y*0.666666666)); + 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 += shadow2DRect(shadowMap, stc.xyz+vec3(2.0, 1.5, 0.0)).x; - shadow += shadow2DRect(shadowMap, stc.xyz+vec3(1.0, -1.5, 0.0)).x; - shadow += shadow2DRect(shadowMap, stc.xyz+vec3(-1.0, 1.5, 0.0)).x; - shadow += shadow2DRect(shadowMap, stc.xyz+vec3(-2.0, -1.5, 0.0)).x; - + 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, vec2 pos_screen) +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; @@ -185,11 +220,9 @@ 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 +231,8 @@ 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); @@ -223,8 +256,7 @@ 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, pos_screen)*w; @@ -235,8 +267,7 @@ 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; @@ -247,8 +278,7 @@ void main() 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; @@ -259,8 +289,7 @@ void main() 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; @@ -298,11 +327,11 @@ void main() //spotlight shadow 1 vec4 lpos = shadow_matrix[4]*spos; - frag_color[2] = pcfShadow(shadowMap4, lpos, 0.8, pos_screen); + 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, pos_screen); + frag_color[3] = pcfSpotShadow(shadowMap5, lpos, 0.8, pos_screen); //frag_color.rgb = pos.xyz; //frag_color.b = shadow; |