diff options
Diffstat (limited to 'indra/newview/app_settings/shaders/class3/deferred')
4 files changed, 78 insertions, 15 deletions
diff --git a/indra/newview/app_settings/shaders/class3/deferred/giDownsampleF.glsl b/indra/newview/app_settings/shaders/class3/deferred/giDownsampleF.glsl index 7325825d6d..66606233cd 100644 --- a/indra/newview/app_settings/shaders/class3/deferred/giDownsampleF.glsl +++ b/indra/newview/app_settings/shaders/class3/deferred/giDownsampleF.glsl @@ -44,7 +44,8 @@ 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); vec3 ccol = texture2DRect(giLightMap, vary_fragcoord.xy).rgb; @@ -56,9 +57,10 @@ void main() for (int i = 0; i < kern_length; i++) { vec2 tc = vary_fragcoord.xy + kern[i].y*dlt; - vec3 sampNorm = texture2DRect(normalMap, tc.xy).xyz*2.0-1.0; - - float d = dot(norm.xyz, sampNorm); + vec3 sampNorm = texture2DRect(normalMap, tc.xy).xyz; + sampNorm = vec3((sampNorm.xy-0.5)*2.0,sampNorm.z); // unpack norm + + float d = dot(norm.xyz, sampNorm); if (d > 0.5) { diff --git a/indra/newview/app_settings/shaders/class3/deferred/giF.glsl b/indra/newview/app_settings/shaders/class3/deferred/giF.glsl index 939710cb56..1b8354dbd1 100644 --- a/indra/newview/app_settings/shaders/class3/deferred/giF.glsl +++ b/indra/newview/app_settings/shaders/class3/deferred/giF.glsl @@ -178,7 +178,8 @@ void main() float rad = gi_range*0.5; - vec3 norm = texture2DRect(normalMap, pos_screen).xyz*2.0-1.0; + vec3 norm = texture2DRect(normalMap, pos_screen).xyz; + norm = vec3((norm.xy-0.5)*2.0,norm.z); // unpack norm float dist = max(length(pos.xyz)-rad, 0.0); float da = clamp(1.0-dist/rad, 0.0, 1.0); diff --git a/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl index 96a083b522..c88edd0a60 100644 --- a/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl +++ b/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl @@ -56,9 +56,8 @@ vec3 vary_AdditiveColor; vec3 vary_AtmosAttenuation; uniform float gi_ambiance; -vec4 getPosition(vec2 pos_screen) -{ //get position in screen space (world units) given window coordinate and depth map - float depth = texture2DRect(depthMap, pos_screen.xy).a; +vec4 getPosition_d(vec2 pos_screen, float depth) +{ vec2 sc = pos_screen.xy*2.0; sc /= screen_res; sc -= vec2(1.0,1.0); @@ -69,6 +68,12 @@ vec4 getPosition(vec2 pos_screen) return pos; } +vec4 getPosition(vec2 pos_screen) +{ //get position in screen space (world units) given window coordinate and depth map + float depth = texture2DRect(depthMap, pos_screen.xy).a; + return getPosition_d(pos_screen, depth); +} + vec3 getPositionEye() { return vary_PositionEye; @@ -252,8 +257,10 @@ vec3 scaleSoftClip(vec3 light) void main() { vec2 tc = vary_fragcoord.xy; - vec3 pos = getPosition(tc).xyz; - vec3 norm = texture2DRect(normalMap, tc).xyz*2.0-1.0; + float depth = texture2DRect(depthMap, tc.xy).a; + vec3 pos = getPosition_d(tc, depth).xyz; + 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); @@ -274,11 +281,63 @@ void main() col *= diffuse.rgb; - if (spec.a > 0.0) + if (spec.a > 0.0) // specular reflection { - vec3 ref = normalize(reflect(pos.xyz, norm.xyz)); - float sa = dot(ref, vary_light.xyz); - col.rgb += vary_SunlitColor*scol*spec.rgb*texture2D(lightFunc, vec2(sa, spec.a)).a; + // the old infinite-sky shiny reflection + // + vec3 refnormpersp = normalize(reflect(pos.xyz, norm.xyz)); + float sa = dot(refnormpersp, vary_light.xyz); + vec3 dumbshiny = vary_SunlitColor*scol*texture2D(lightFunc, vec2(sa, spec.a)).a; + + /* + // screen-space cheap fakey reflection map + // + vec3 refnorm = normalize(reflect(vec3(0,0,-1), norm.xyz)); + depth -= 0.5; // unbias depth + // first figure out where we'll make our 2D guess from + vec2 ref2d = (0.25 * screen_res.y) * (refnorm.xy) * abs(refnorm.z) / depth; + // Offset the guess source a little according to a trivial + // checkerboard dither function and spec.a. + // This is meant to be similar to sampling a blurred version + // of the diffuse map. LOD would be better in that regard. + // The goal of the blur is to soften reflections in surfaces + // with low shinyness, and also to disguise our lameness. + float checkerboard = floor(mod(tc.x+tc.y, 2.0)); // 0.0, 1.0 + float checkoffset = (3.0 + (7.0*(1.0-spec.a)))*(checkerboard-0.5); + + ref2d += vec2(checkoffset, checkoffset); + ref2d += tc.xy; // use as offset from destination + // Get attributes from the 2D guess point. + // We average two samples of diffuse (not of anything else) per + // pixel to try to reduce aliasing some more. + vec3 refcol = 0.5 * (texture2DRect(diffuseRect, ref2d + vec2(0.0, -checkoffset)).rgb + + texture2DRect(diffuseRect, ref2d + vec2(-checkoffset, 0.0)).rgb); + float refdepth = texture2DRect(depthMap, ref2d).a; + vec3 refpos = getPosition_d(ref2d, refdepth).xyz; + float refshad = texture2DRect(lightMap, ref2d).r; + 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 + //refapprop *= step(dot(refnorm, refn), 0.0); + refapprop = min(refapprop, max(0.0, -dot(refnorm, refn))); // more conservative variant + // get appropriate light strength for guess-point. + // reflect light direction to increase the illusion that + // these are reflections. + vec3 reflight = reflect(lightnorm.xyz, norm.xyz); + float reflit = min(max(dot(refn, reflight.xyz), 0.0), refshad); + // apply sun color to guess-point, dampen according to inappropriateness of guess + float refmod = min(refapprop, reflit); + vec3 refprod = vary_SunlitColor * refcol.rgb * refmod; + vec3 ssshiny = (refprod * spec.a); + ssshiny *= 0.3; // dampen it even more + */ + vec3 ssshiny = vec3(0,0,0); + + // add the two types of shiny together + col += (ssshiny + dumbshiny) * spec.rgb; } col = atmosLighting(col); diff --git a/indra/newview/app_settings/shaders/class3/deferred/treeF.glsl b/indra/newview/app_settings/shaders/class3/deferred/treeF.glsl index 258acee08c..5b33ea5bfe 100644 --- a/indra/newview/app_settings/shaders/class3/deferred/treeF.glsl +++ b/indra/newview/app_settings/shaders/class3/deferred/treeF.glsl @@ -14,5 +14,6 @@ void main() vec4 col = texture2D(diffuseMap, gl_TexCoord[0].xy); gl_FragData[0] = vec4(gl_Color.rgb*col.rgb, col.a <= 0.5 ? 0.0 : 0.005); gl_FragData[1] = vec4(0,0,0,0); - gl_FragData[2] = vec4(normalize(vary_normal)*0.5+0.5, 0.0); + vec3 nvn = normalize(vary_normal); + gl_FragData[2] = vec4(nvn.xy * 0.5 + 0.5, nvn.z, 0.0); } |