diff options
Diffstat (limited to 'indra/newview/app_settings/shaders/class3/deferred')
| -rw-r--r-- | indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl | 25 |
1 files changed, 17 insertions, 8 deletions
diff --git a/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl index ddd69befc3..e1e035411b 100644 --- a/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl +++ b/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl @@ -284,12 +284,13 @@ void main() { // the old infinite-sky shiny reflection // - vec3 refnorm = normalize(reflect(pos.xyz, norm.xyz)); - float sa = dot(refnorm, vary_light.xyz); + 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; @@ -300,12 +301,16 @@ void main() // 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 - ref2d += normalize(ref2d)*14.0*(1.0-spec.a)*(checkerboard-0.5); + float checkoffset = 1.0 + (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 + // 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; - vec3 refcol = texture2DRect(diffuseRect, ref2d).rgb; float refshad = texture2DRect(lightMap, ref2d).r; vec3 refn = normalize(texture2DRect(normalMap, ref2d).rgb * 2.0 - 1.0); // figure out how appropriate our guess actually was @@ -313,10 +318,14 @@ void main() // 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 - float reflit = min(max(dot(refn, lightnorm.xyz), 0.0), refshad); + // 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 - vec3 refprod = (vary_SunlitColor*reflit) * refcol.rgb * refapprop; + float refmod = min(refapprop, reflit); + vec3 refprod = vary_SunlitColor * refcol.rgb * refmod; vec3 ssshiny = (refprod * spec.a); // add the two types of shiny together |