diff options
Diffstat (limited to 'indra/newview/app_settings/shaders/class1')
4 files changed, 54 insertions, 60 deletions
diff --git a/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl b/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl index b08c5dd295..28a38d4390 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/alphaF.glsl @@ -10,7 +10,6 @@ #extension GL_ARB_texture_rectangle : enable uniform sampler2D diffuseMap; -uniform sampler2D noiseMap; uniform sampler2DRect depthMap; uniform mat4 shadow_matrix[6]; @@ -45,8 +44,6 @@ void main() vec2 frag = vary_fragcoord.xy/vary_fragcoord.z*0.5+0.5; frag *= screen_res; - vec3 samp_pos = getPosition(frag).xyz; - vec4 pos = vec4(vary_position, 1.0); vec4 col = vec4(vary_ambient + vary_directional.rgb, gl_Color.a); diff --git a/indra/newview/app_settings/shaders/class1/deferred/blurLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/blurLightF.glsl index ea2df4b51a..d9f021b114 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/blurLightF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/blurLightF.glsl @@ -39,44 +39,49 @@ vec4 getPosition(vec2 pos_screen) void main() { - vec3 norm = texture2DRect(normalMap, vary_fragcoord.xy).xyz; + vec2 tc = vary_fragcoord.xy; + vec3 norm = texture2DRect(normalMap, tc).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; + vec3 pos = getPosition(tc).xyz; + vec4 ccol = texture2DRect(lightMap, tc).rgba; vec2 dlt = kern_scale * delta / (1.0+norm.xy*norm.xy); - dlt /= max(-pos.z*dist_factor, 1.0); vec2 defined_weight = kern[0].xy; // special case the first (centre) sample's weight in the blur; we have to sample it anyway so we get it for 'free' vec4 col = defined_weight.xyxx * ccol; - + + // relax tolerance according to distance to avoid speckling artifacts, as angles and distances are a lot more abrupt within a small screen area at larger distances + float pointplanedist_tolerance_pow2 = pos.z*pos.z*0.00005; + + // perturb sampling origin slightly in screen-space to hide edge-ghosting artifacts where smoothing radius is quite large + tc += ( (mod(tc.x+tc.y,2) - 0.5) * kern[1].z * dlt * 0.5 ); + for (int i = 1; i < 4; i++) { - vec2 tc = vary_fragcoord.xy + kern[i].z*dlt; - vec3 samppos = getPosition(tc).xyz; + vec2 samptc = tc + kern[i].z*dlt; + vec3 samppos = getPosition(samptc).xyz; float d = dot(norm.xyz, samppos.xyz-pos.xyz);// dist from plane - if (d*d <= 0.003) + if (d*d <= pointplanedist_tolerance_pow2) { - col += texture2DRect(lightMap, tc)*kern[i].xyxx; + col += texture2DRect(lightMap, samptc)*kern[i].xyxx; defined_weight += kern[i].xy; } } for (int i = 1; i < 4; i++) { - vec2 tc = vary_fragcoord.xy - kern[i].z*dlt; - vec3 samppos = getPosition(tc).xyz; + vec2 samptc = tc - kern[i].z*dlt; + vec3 samppos = getPosition(samptc).xyz; float d = dot(norm.xyz, samppos.xyz-pos.xyz);// dist from plane - if (d*d <= 0.003) + if (d*d <= pointplanedist_tolerance_pow2) { - col += texture2DRect(lightMap, tc)*kern[i].xyxx; + col += texture2DRect(lightMap, samptc)*kern[i].xyxx; defined_weight += kern[i].xy; } } - - col /= defined_weight.xyxx; + col.y *= col.y; gl_FragColor = col; } diff --git a/indra/newview/app_settings/shaders/class1/deferred/impostorF.glsl b/indra/newview/app_settings/shaders/class1/deferred/impostorF.glsl index e3c15a2ab2..f4f6ee95d0 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/impostorF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/impostorF.glsl @@ -16,5 +16,5 @@ void main() vec4 col = texture2D(diffuseMap, gl_TexCoord[0].xy); gl_FragData[0] = vec4(col.rgb, col.a * 0.005); gl_FragData[1] = texture2D(specularMap, gl_TexCoord[0].xy); - gl_FragData[2] = vec4(texture2D(normalMap, gl_TexCoord[0].xy).xyz, 0.0); + gl_FragData[2] = texture2D(normalMap, gl_TexCoord[0].xy); } diff --git a/indra/newview/app_settings/shaders/class1/deferred/sunLightSSAOF.glsl b/indra/newview/app_settings/shaders/class1/deferred/sunLightSSAOF.glsl index 1e0693d19f..25ff958107 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/sunLightSSAOF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/sunLightSSAOF.glsl @@ -53,57 +53,49 @@ float calcAmbientOcclusion(vec4 pos, vec3 norm) { float ret = 1.0; - float dist = dot(pos.xyz,pos.xyz); - - if (dist < 64.0*64.0) - { - 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 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; + 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 angle_hidden = 0.0; + int points = 0; - float scale = min(ssao_radius / -pos_world.z, ssao_max_radius); + 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++) - { - vec2 samppos_screen = pos_screen + scale * reflect(kern[i], noise_reflect); - vec3 samppos_world = getPosition(samppos_screen).xyz; + // 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++) + { + vec2 samppos_screen = pos_screen + scale * reflect(kern[i], noise_reflect); + vec3 samppos_world = getPosition(samppos_screen).xyz; - vec3 diff = pos_world - samppos_world; - float dist2 = dot(diff, diff); + 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) + // 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) - //if (dot((samppos_world - 0.05*norm - pos_world), norm) > 0.0) // -0.05*norm to shift sample point back slightly for flat surfaces - // angle_hidden += min(1.0/dist2, ssao_factor_inv); // dist != 0 follows from conditional. max of 1.0 (= ssao_factor_inv * ssao_factor) - angle_hidden = angle_hidden + float(dot((samppos_world - 0.05*norm - pos_world), norm) > 0.0) * min(1.0/dist2, ssao_factor_inv); + 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); - } + // '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); + angle_hidden = min(ssao_factor*angle_hidden/float(points), 1.0); - ret = (1.0 - (float(points != 0) * angle_hidden)); - ret += max((dist-32.0*32.0)/(32.0*32.0), 0.0); - } + ret = (1.0 - (float(points != 0) * angle_hidden)); return min(ret, 1.0); } |