diff options
Diffstat (limited to 'indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl')
| -rw-r--r-- | indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl | 171 |
1 files changed, 79 insertions, 92 deletions
diff --git a/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl index 60082f40d6..0c53a4ffa5 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl @@ -2,20 +2,39 @@ * @file softenLightF.glsl * * $LicenseInfo:firstyear=2007&license=viewerlgpl$ + * Second Life Viewer Source Code + * Copyright (C) 2007, Linden Research, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License only. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ - - #extension GL_ARB_texture_rectangle : enable +#ifdef DEFINE_GL_FRAGCOLOR +out vec4 gl_FragColor; +#endif + uniform sampler2DRect diffuseRect; uniform sampler2DRect specularRect; uniform sampler2DRect positionMap; uniform sampler2DRect normalMap; uniform sampler2DRect lightMap; uniform sampler2DRect depthMap; -uniform sampler2D noiseMap; uniform samplerCube environmentMap; uniform sampler2D lightFunc; @@ -32,21 +51,19 @@ uniform vec4 sunlight_color; uniform vec4 ambient; uniform vec4 blue_horizon; uniform vec4 blue_density; -uniform vec4 haze_horizon; -uniform vec4 haze_density; -uniform vec4 cloud_shadow; -uniform vec4 density_multiplier; -uniform vec4 distance_multiplier; -uniform vec4 max_y; +uniform float haze_horizon; +uniform float haze_density; +uniform float cloud_shadow; +uniform float density_multiplier; +uniform float distance_multiplier; +uniform float max_y; uniform vec4 glow; uniform float scene_light_strength; -uniform vec3 env_mat[3]; -//uniform mat4 shadow_matrix[3]; -//uniform vec4 shadow_clip; +uniform mat3 env_mat; uniform mat3 ssao_effect_mat; -varying vec4 vary_light; -varying vec2 vary_fragcoord; +uniform vec3 sun_dir; +VARYING vec2 vary_fragcoord; vec3 vary_PositionEye; @@ -128,10 +145,6 @@ void calcAtmospherics(vec3 inPositionEye, float ambFactor) { vec3 P = inPositionEye; setPositionEye(P); - //(TERRAIN) limit altitude - if (P.y > max_y.x) P *= (max_y.x / P.y); - if (P.y < -max_y.x) P *= (-max_y.x / P.y); - vec3 tmpLightnorm = lightnorm.xyz; vec3 Pn = normalize(P); @@ -146,13 +159,13 @@ void calcAtmospherics(vec3 inPositionEye, float ambFactor) { //sunlight attenuation effect (hue and brightness) due to atmosphere //this is used later for sunlight modulation at various altitudes - light_atten = (blue_density * 1.0 + vec4(haze_density.r) * 0.25) * (density_multiplier.x * max_y.x); + light_atten = (blue_density + vec4(haze_density * 0.25)) * (density_multiplier * max_y); //I had thought blue_density and haze_density should have equal weighting, //but attenuation due to haze_density tends to seem too strong - temp1 = blue_density + vec4(haze_density.r); + temp1 = blue_density + vec4(haze_density); blue_weight = blue_density / temp1; - haze_weight = vec4(haze_density.r) / temp1; + haze_weight = vec4(haze_density) / temp1; //(TERRAIN) compute sunlight from lightnorm only (for short rays like terrain) temp2.y = max(0.0, tmpLightnorm.y); @@ -160,12 +173,12 @@ void calcAtmospherics(vec3 inPositionEye, float ambFactor) { sunlight *= exp( - light_atten * temp2.y); // main atmospheric scattering line integral - temp2.z = Plen * density_multiplier.x; + temp2.z = Plen * density_multiplier; // Transparency (-> temp1) - // ATI Bugfix -- can't store temp1*temp2.z*distance_multiplier.x in a variable because the ati + // ATI Bugfix -- can't store temp1*temp2.z*distance_multiplier in a variable because the ati // compiler gets confused. - temp1 = exp(-temp1 * temp2.z * distance_multiplier.x); + temp1 = exp(-temp1 * temp2.z * distance_multiplier); //final atmosphere attenuation factor setAtmosAttenuation(temp1.rgb); @@ -186,7 +199,7 @@ void calcAtmospherics(vec3 inPositionEye, float ambFactor) { temp2.x += .25; //increase ambient when there are more clouds - vec4 tmpAmbient = ambient + (vec4(1.) - ambient) * cloud_shadow.x * 0.5; + vec4 tmpAmbient = ambient + (vec4(1.) - ambient) * cloud_shadow * 0.5; /* decrease value and saturation (that in HSV, not HSL) for occluded areas * // for HSV color/geometry used here, see http://gimp-savvy.com/BOOK/index.html?node52.html @@ -200,8 +213,8 @@ void calcAtmospherics(vec3 inPositionEye, float ambFactor) { //haze color setAdditiveColor( - vec3(blue_horizon * blue_weight * (sunlight*(1.-cloud_shadow.x) + tmpAmbient) - + (haze_horizon.r * haze_weight) * (sunlight*(1.-cloud_shadow.x) * temp2.x + vec3(blue_horizon * blue_weight * (sunlight*(1.-cloud_shadow) + tmpAmbient) + + (haze_horizon * haze_weight) * (sunlight*(1.-cloud_shadow) * temp2.x + tmpAmbient))); //brightness of surface both sunlight and ambient @@ -263,79 +276,53 @@ void main() 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); + + float da = max(dot(norm.xyz, sun_dir.xyz), 0.0); vec4 diffuse = texture2DRect(diffuseRect, tc); vec4 spec = texture2DRect(specularRect, vary_fragcoord.xy); - calcAtmospherics(pos.xyz, 1.0); + vec3 col; + float bloom = 0.0; + if (diffuse.a < 0.9) + { + calcAtmospherics(pos.xyz, 1.0); + + col = atmosAmbient(vec3(0)); + col += atmosAffectDirectionalLight(max(min(da, 1.0), diffuse.a)); - vec3 col = atmosAmbient(vec3(0)); - col += atmosAffectDirectionalLight(max(min(da, 1.0), diffuse.a)); + col *= diffuse.rgb; - col *= diffuse.rgb; + if (spec.a > 0.0) // specular reflection + { + // the old infinite-sky shiny reflection + // + vec3 refnormpersp = normalize(reflect(pos.xyz, norm.xyz)); + float sa = dot(refnormpersp, sun_dir.xyz); + vec3 dumbshiny = vary_SunlitColor*texture2D(lightFunc, vec2(sa, spec.a)).r; + + // add the two types of shiny together + vec3 spec_contrib = dumbshiny * spec.rgb; + bloom = dot(spec_contrib, spec_contrib); + col += spec_contrib; + + //add environmentmap + vec3 env_vec = env_mat * refnormpersp; + col = mix(col.rgb, textureCube(environmentMap, env_vec).rgb, + max(spec.a-diffuse.a*2.0, 0.0)); + } - if (spec.a > 0.0) // specular reflection + col = atmosLighting(col); + col = scaleSoftClip(col); + + col = mix(col.rgb, diffuse.rgb, diffuse.a); + } + else { - // 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*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; - vec3 refn = texture2DRect(normalMap, ref2d).rgb; - refn = normalize(vec3((refn.xy-0.5)*2.0,refn.z)); // unpack norm - // 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 = max(dot(refn, reflight.xyz), 0.0); - // 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 = diffuse.rgb; } - - col = atmosLighting(col); - col = scaleSoftClip(col); - + gl_FragColor.rgb = col; - gl_FragColor.a = 0.0; + + gl_FragColor.a = bloom; } |