diff options
Diffstat (limited to 'indra/newview/app_settings')
| -rw-r--r-- | indra/newview/app_settings/shaders/class1/deferred/blurLightF.glsl | 24 | ||||
| -rw-r--r-- | indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl | 43 |
2 files changed, 42 insertions, 25 deletions
diff --git a/indra/newview/app_settings/shaders/class1/deferred/blurLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/blurLightF.glsl index 7d3b546d3e..60d4dae99f 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/blurLightF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/blurLightF.glsl @@ -44,6 +44,11 @@ VARYING vec2 vary_fragcoord; uniform mat4 inv_proj; uniform vec2 screen_res; +vec3 getKern(int i) +{ + return kern[i]; +} + vec4 getPosition(vec2 pos_screen) { float depth = texture2DRect(depthMap, pos_screen.xy).r; @@ -68,35 +73,38 @@ void main() 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' + vec2 defined_weight = getKern(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 ); + float tc_mod = 0.5*(tc.x + tc.y); // mod(tc.x+tc.y,2) + tc_mod -= floor(tc_mod); + tc_mod *= 2.0; + tc += ( (tc_mod - 0.5) * getKern(1).z * dlt * 0.5 ); for (int i = 1; i < 4; i++) { - vec2 samptc = tc + kern[i].z*dlt; + vec2 samptc = tc + getKern(i).z*dlt; vec3 samppos = getPosition(samptc).xyz; float d = dot(norm.xyz, samppos.xyz-pos.xyz);// dist from plane if (d*d <= pointplanedist_tolerance_pow2) { - col += texture2DRect(lightMap, samptc)*kern[i].xyxx; - defined_weight += kern[i].xy; + col += texture2DRect(lightMap, samptc)*getKern(i).xyxx; + defined_weight += getKern(i).xy; } } for (int i = 1; i < 4; i++) { - vec2 samptc = tc - kern[i].z*dlt; + vec2 samptc = tc - getKern(i).z*dlt; vec3 samppos = getPosition(samptc).xyz; float d = dot(norm.xyz, samppos.xyz-pos.xyz);// dist from plane if (d*d <= pointplanedist_tolerance_pow2) { - col += texture2DRect(lightMap, samptc)*kern[i].xyxx; - defined_weight += kern[i].xy; + col += texture2DRect(lightMap, samptc)*getKern(i).xyxx; + defined_weight += getKern(i).xy; } } diff --git a/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl b/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl index 5b207ab558..6b420833b9 100644 --- a/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl +++ b/indra/newview/app_settings/shaders/class2/deferred/sunLightSSAOF.glsl @@ -40,6 +40,7 @@ uniform sampler2DShadow shadowMap4; uniform sampler2DShadow shadowMap5; uniform sampler2D noiseMap; + // Inputs uniform mat4 shadow_matrix[6]; uniform vec4 shadow_clip; @@ -49,12 +50,12 @@ uniform float ssao_factor; uniform float ssao_factor_inv; VARYING vec2 vary_fragcoord; -uniform vec3 sun_dir; uniform mat4 inv_proj; uniform vec2 screen_res; uniform vec2 shadow_res; uniform vec2 proj_shadow_res; +uniform vec3 sun_dir; uniform float shadow_bias; uniform float shadow_offset; @@ -75,11 +76,8 @@ vec4 getPosition(vec2 pos_screen) return pos; } -//calculate decreases in ambient lighting when crowded out (SSAO) -float calcAmbientOcclusion(vec4 pos, vec3 norm) +vec2 getKern(int i) { - 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; @@ -90,22 +88,30 @@ float calcAmbientOcclusion(vec4 pos, vec3 norm) 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]; +} + +//calculate decreases in ambient lighting when crowded out (SSAO) +float calcAmbientOcclusion(vec4 pos, vec3 norm) +{ + float ret = 1.0; 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 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++) { - vec2 samppos_screen = pos_screen + scale * reflect(kern[i], noise_reflect); + vec2 samppos_screen = pos_screen + scale * reflect(getKern(i), noise_reflect); vec3 samppos_world = getPosition(samppos_screen).xyz; - + vec3 diff = pos_world - samppos_world; float dist2 = dot(diff, diff); @@ -113,17 +119,21 @@ float calcAmbientOcclusion(vec4 pos, vec3 norm) // --> 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); + + float funky_val = (dot((samppos_world - 0.05*norm - pos_world), norm) > 0.0) ? 1.0 : 0.0; + angle_hidden = angle_hidden + funky_val * 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); + float diffz_val = (diff.z > -1.0) ? 1.0 : 0.0; + points = points + diffz_val; } - angle_hidden = min(ssao_factor*angle_hidden/float(points), 1.0); - - ret = (1.0 - (float(points != 0) * angle_hidden)); + angle_hidden = min(ssao_factor*angle_hidden/points, 1.0); + float points_val = (points > 0.0) ? 1.0 : 0.0; + ret = (1.0 - (points_val * angle_hidden)); + + ret = max(ret, 0.0); return min(ret, 1.0); } @@ -160,7 +170,6 @@ float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float scl) 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; @@ -253,7 +262,7 @@ void main() gl_FragColor[0] = shadow; gl_FragColor[1] = calcAmbientOcclusion(pos, norm); - spos.xyz = shadow_pos+norm*spot_shadow_offset; + spos = vec4(shadow_pos+norm*spot_shadow_offset, 1.0); //spotlight shadow 1 vec4 lpos = shadow_matrix[4]*spos; |