diff options
Diffstat (limited to 'indra/newview/app_settings/shaders/class1')
| -rwxr-xr-x | indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl | 790 |
1 files changed, 394 insertions, 396 deletions
diff --git a/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl index f7920f7595..4cae08b0b9 100755 --- a/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl @@ -1,396 +1,394 @@ -/**
- * @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 frag_color;
-#else
-#define frag_color gl_FragColor
-#endif
-
-uniform sampler2DRect diffuseRect;
-uniform sampler2DRect specularRect;
-uniform sampler2DRect positionMap;
-uniform sampler2DRect normalMap;
-uniform sampler2DRect lightMap;
-uniform sampler2DRect depthMap;
-uniform samplerCube environmentMap;
-uniform sampler2D lightFunc;
-
-uniform float blur_size;
-uniform float blur_fidelity;
-
-// Inputs
-uniform vec4 morphFactor;
-uniform vec3 camPosLocal;
-//uniform vec4 camPosWorld;
-uniform vec4 gamma;
-uniform vec4 lightnorm;
-uniform vec4 sunlight_color;
-uniform vec4 ambient;
-uniform vec4 blue_horizon;
-uniform vec4 blue_density;
-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 global_gamma;
-uniform float scene_light_strength;
-uniform mat3 env_mat;
-uniform mat3 ssao_effect_mat;
-
-uniform vec3 sun_dir;
-VARYING vec2 vary_fragcoord;
-
-vec3 vary_PositionEye;
-
-vec3 vary_SunlitColor;
-vec3 vary_AmblitColor;
-vec3 vary_AdditiveColor;
-vec3 vary_AtmosAttenuation;
-
-uniform mat4 inv_proj;
-uniform vec2 screen_res;
-
-#ifdef SINGLE_FP_ONLY
-vec2 encode_normal(vec3 n)
-{
- vec2 sn;
- sn.xy = (n.xy * vec2(0.5f,0.5f)) + vec2(0.5f,0.5f);
- return sn;
-}
-
-vec3 decode_normal (vec2 enc)
-{
- vec3 n;
- n.xy = (enc.xy * vec2(2.0f,2.0f)) - vec2(1.0f,1.0f);
- n.z = sqrt(1.0f - dot(n.xy,n.xy));
- return n;
-}
-#else
-vec3 decode_normal (vec2 enc)
-{
- vec2 fenc = enc*4-2;
- float f = dot(fenc,fenc);
- float g = sqrt(1-f/4);
- vec3 n;
- n.xy = fenc*g;
- n.z = 1-f/2;
- return n;
-}
-#endif
-
-vec4 getPosition_d(vec2 pos_screen, float depth)
-{
- vec2 sc = pos_screen.xy*2.0;
- sc /= screen_res;
- sc -= vec2(1.0,1.0);
- vec4 ndc = vec4(sc.x, sc.y, 2.0*depth-1.0, 1.0);
- vec4 pos = inv_proj * ndc;
- pos /= pos.w;
- pos.w = 1.0;
- 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;
-}
-vec3 getSunlitColor()
-{
- return vary_SunlitColor;
-}
-vec3 getAmblitColor()
-{
- return vary_AmblitColor;
-}
-vec3 getAdditiveColor()
-{
- return vary_AdditiveColor;
-}
-vec3 getAtmosAttenuation()
-{
- return vary_AtmosAttenuation;
-}
-
-void setPositionEye(vec3 v)
-{
- vary_PositionEye = v;
-}
-
-void setSunlitColor(vec3 v)
-{
- vary_SunlitColor = v;
-}
-
-void setAmblitColor(vec3 v)
-{
- vary_AmblitColor = v;
-}
-
-void setAdditiveColor(vec3 v)
-{
- vary_AdditiveColor = v;
-}
-
-void setAtmosAttenuation(vec3 v)
-{
- vary_AtmosAttenuation = v;
-}
-
-void calcAtmospherics(vec3 inPositionEye, float ambFactor) {
-
- vec3 P = inPositionEye;
- setPositionEye(P);
-
- vec3 tmpLightnorm = lightnorm.xyz;
-
- vec3 Pn = normalize(P);
- float Plen = length(P);
-
- vec4 temp1 = vec4(0);
- vec3 temp2 = vec3(0);
- vec4 blue_weight;
- vec4 haze_weight;
- vec4 sunlight = sunlight_color;
- vec4 light_atten;
-
- //sunlight attenuation effect (hue and brightness) due to atmosphere
- //this is used later for sunlight modulation at various altitudes
- 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);
- blue_weight = blue_density / 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);
- temp2.y = 1. / temp2.y;
- sunlight *= exp( - light_atten * temp2.y);
-
- // main atmospheric scattering line integral
- temp2.z = Plen * density_multiplier;
-
- // Transparency (-> temp1)
- // 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);
-
- //final atmosphere attenuation factor
- setAtmosAttenuation(temp1.rgb);
-
- //compute haze glow
- //(can use temp2.x as temp because we haven't used it yet)
- temp2.x = dot(Pn, tmpLightnorm.xyz);
- temp2.x = 1. - temp2.x;
- //temp2.x is 0 at the sun and increases away from sun
- temp2.x = max(temp2.x, .03); //was glow.y
- //set a minimum "angle" (smaller glow.y allows tighter, brighter hotspot)
- temp2.x *= glow.x;
- //higher glow.x gives dimmer glow (because next step is 1 / "angle")
- temp2.x = pow(temp2.x, glow.z);
- //glow.z should be negative, so we're doing a sort of (1 / "angle") function
-
- //add "minimum anti-solar illumination"
- temp2.x += .25;
-
- //increase ambient when there are more clouds
- 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
- * // The following line of code performs the equivalent of:
- * float ambAlpha = tmpAmbient.a;
- * float ambValue = dot(vec3(tmpAmbient), vec3(0.577)); // projection onto <1/rt(3), 1/rt(3), 1/rt(3)>, the neutral white-black axis
- * vec3 ambHueSat = vec3(tmpAmbient) - vec3(ambValue);
- * tmpAmbient = vec4(RenderSSAOEffect.valueFactor * vec3(ambValue) + RenderSSAOEffect.saturationFactor *(1.0 - ambFactor) * ambHueSat, ambAlpha);
- */
- tmpAmbient = vec4(mix(ssao_effect_mat * tmpAmbient.rgb, tmpAmbient.rgb, ambFactor), tmpAmbient.a);
-
- //haze color
- setAdditiveColor(
- 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
- setSunlitColor(pow(vec3(sunlight * .5), vec3(global_gamma)) * global_gamma);
- setAmblitColor(pow(vec3(tmpAmbient * .25), vec3(global_gamma)) * global_gamma);
- setAdditiveColor(pow(getAdditiveColor() * vec3(1.0 - temp1), vec3(global_gamma)) * global_gamma);
-}
-
-vec3 atmosLighting(vec3 light)
-{
- light *= getAtmosAttenuation().r;
- light += getAdditiveColor();
- return (2.0 * light);
-}
-
-vec3 atmosTransport(vec3 light) {
- light *= getAtmosAttenuation().r;
- light += getAdditiveColor() * 2.0;
- return light;
-}
-
-vec3 fullbrightAtmosTransport(vec3 light) {
- float brightness = dot(light.rgb, vec3(0.33333));
-
- return mix(atmosTransport(light.rgb), light.rgb + getAdditiveColor().rgb, brightness * brightness);
-}
-
-
-
-vec3 atmosGetDiffuseSunlightColor()
-{
- return getSunlitColor();
-}
-
-vec3 scaleDownLight(vec3 light)
-{
- return (light / scene_light_strength );
-}
-
-vec3 scaleUpLight(vec3 light)
-{
- return (light * scene_light_strength);
-}
-
-vec3 atmosAmbient(vec3 light)
-{
- return getAmblitColor() + light / 2.0;
-}
-
-vec3 atmosAffectDirectionalLight(float lightIntensity)
-{
- return getSunlitColor() * lightIntensity;
-}
-
-vec3 scaleSoftClip(vec3 light)
-{
- //soft clip effect:
- light = 1. - clamp(light, vec3(0.), vec3(1.));
- light = 1. - pow(light, gamma.xxx);
-
- return light;
-}
-
-
-vec3 fullbrightScaleSoftClip(vec3 light)
-{
- //soft clip effect:
- return light;
-}
-
-void main()
-{
- vec2 tc = vary_fragcoord.xy;
- float depth = texture2DRect(depthMap, tc.xy).r;
- vec3 pos = getPosition_d(tc, depth).xyz;
- vec4 norm = texture2DRect(normalMap, tc);
- float envIntensity = norm.z;
- norm.xyz = decode_normal(norm.xy); // unpack norm
-
- float da = max(dot(norm.xyz, sun_dir.xyz), 0.0);
-
- vec4 diffuse = texture2DRect(diffuseRect, tc);
- vec4 spec = texture2DRect(specularRect, vary_fragcoord.xy);
- vec3 col;
- float bloom = 0.0;
- {
- calcAtmospherics(pos.xyz, 1.0);
-
- col = atmosAmbient(vec3(0));
- float ambient = min(abs(dot(norm.xyz, sun_dir.xyz)), 1.0);
- ambient *= 0.5;
- ambient *= ambient;
- ambient = (1.0-ambient);
-
- col.rgb *= ambient;
-
- col += atmosAffectDirectionalLight(max(min(da, 1.0) * 2.6, 0.0));
-
- col *= diffuse.rgb;
-
- vec3 refnormpersp = normalize(reflect(pos.xyz, norm.xyz));
-
- if (spec.a > 0.0) // specular reflection
- {
- // the old infinite-sky shiny reflection
- //
-
- 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) / 6;
- col += spec_contrib;
- }
-
-
- col = mix(col.rgb, pow(diffuse.rgb, vec3(1.0/2.2)), diffuse.a);
-
-
- if (envIntensity > 0.0)
- { //add environmentmap
- vec3 env_vec = env_mat * refnormpersp;
-
- float exponent = mix(2.2, 1.0, diffuse.a);
- vec3 refcol = pow(textureCube(environmentMap, env_vec).rgb, vec3(exponent))*exponent;
-
- col = mix(col.rgb, refcol,
- envIntensity);
-
- }
-
- float exponent = mix(1.0, 2.2, diffuse.a);
- col = pow(col, vec3(exponent));
-
- if (norm.w < 0.5)
- {
- col = mix(atmosLighting(col), fullbrightAtmosTransport(col), diffuse.a);
- col = mix(scaleSoftClip(col), fullbrightScaleSoftClip(col), diffuse.a);
- }
-
- //col = vec3(1,0,1);
- //col.g = envIntensity;
- }
-
- frag_color.rgb = col;
-
- frag_color.a = bloom;
-}
+/** + * @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 frag_color; +#else +#define frag_color gl_FragColor +#endif + +uniform sampler2DRect diffuseRect; +uniform sampler2DRect specularRect; +uniform sampler2DRect positionMap; +uniform sampler2DRect normalMap; +uniform sampler2DRect lightMap; +uniform sampler2DRect depthMap; +uniform samplerCube environmentMap; +uniform sampler2D lightFunc; + +uniform float blur_size; +uniform float blur_fidelity; + +// Inputs +uniform vec4 morphFactor; +uniform vec3 camPosLocal; +//uniform vec4 camPosWorld; +uniform vec4 gamma; +uniform vec4 lightnorm; +uniform vec4 sunlight_color; +uniform vec4 ambient; +uniform vec4 blue_horizon; +uniform vec4 blue_density; +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 global_gamma; +uniform float scene_light_strength; +uniform mat3 env_mat; +uniform mat3 ssao_effect_mat; + +uniform vec3 sun_dir; +VARYING vec2 vary_fragcoord; + +vec3 vary_PositionEye; + +vec3 vary_SunlitColor; +vec3 vary_AmblitColor; +vec3 vary_AdditiveColor; +vec3 vary_AtmosAttenuation; + +uniform mat4 inv_proj; +uniform vec2 screen_res; + +#ifdef SINGLE_FP_ONLY +vec2 encode_normal(vec3 n) +{ + vec2 sn; + sn.xy = (n.xy * vec2(0.5f,0.5f)) + vec2(0.5f,0.5f); + return sn; +} + +vec3 decode_normal (vec2 enc) +{ + vec3 n; + n.xy = (enc.xy * vec2(2.0f,2.0f)) - vec2(1.0f,1.0f); + n.z = sqrt(1.0f - dot(n.xy,n.xy)); + return n; +} +#else +vec3 decode_normal (vec2 enc) +{ + vec2 fenc = enc*4-2; + float f = dot(fenc,fenc); + float g = sqrt(1-f/4); + vec3 n; + n.xy = fenc*g; + n.z = 1-f/2; + return n; +} +#endif + +vec4 getPosition_d(vec2 pos_screen, float depth) +{ + vec2 sc = pos_screen.xy*2.0; + sc /= screen_res; + sc -= vec2(1.0,1.0); + vec4 ndc = vec4(sc.x, sc.y, 2.0*depth-1.0, 1.0); + vec4 pos = inv_proj * ndc; + pos /= pos.w; + pos.w = 1.0; + 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; +} +vec3 getSunlitColor() +{ + return vary_SunlitColor; +} +vec3 getAmblitColor() +{ + return vary_AmblitColor; +} +vec3 getAdditiveColor() +{ + return vary_AdditiveColor; +} +vec3 getAtmosAttenuation() +{ + return vary_AtmosAttenuation; +} + +void setPositionEye(vec3 v) +{ + vary_PositionEye = v; +} + +void setSunlitColor(vec3 v) +{ + vary_SunlitColor = v; +} + +void setAmblitColor(vec3 v) +{ + vary_AmblitColor = v; +} + +void setAdditiveColor(vec3 v) +{ + vary_AdditiveColor = v; +} + +void setAtmosAttenuation(vec3 v) +{ + vary_AtmosAttenuation = v; +} + +void calcAtmospherics(vec3 inPositionEye, float ambFactor) { + + vec3 P = inPositionEye; + setPositionEye(P); + + vec3 tmpLightnorm = lightnorm.xyz; + + vec3 Pn = normalize(P); + float Plen = length(P); + + vec4 temp1 = vec4(0); + vec3 temp2 = vec3(0); + vec4 blue_weight; + vec4 haze_weight; + vec4 sunlight = sunlight_color; + vec4 light_atten; + + //sunlight attenuation effect (hue and brightness) due to atmosphere + //this is used later for sunlight modulation at various altitudes + 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); + blue_weight = blue_density / 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); + temp2.y = 1. / temp2.y; + sunlight *= exp( - light_atten * temp2.y); + + // main atmospheric scattering line integral + temp2.z = Plen * density_multiplier; + + // Transparency (-> temp1) + // 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); + + //final atmosphere attenuation factor + setAtmosAttenuation(temp1.rgb); + + //compute haze glow + //(can use temp2.x as temp because we haven't used it yet) + temp2.x = dot(Pn, tmpLightnorm.xyz); + temp2.x = 1. - temp2.x; + //temp2.x is 0 at the sun and increases away from sun + temp2.x = max(temp2.x, .03); //was glow.y + //set a minimum "angle" (smaller glow.y allows tighter, brighter hotspot) + temp2.x *= glow.x; + //higher glow.x gives dimmer glow (because next step is 1 / "angle") + temp2.x = pow(temp2.x, glow.z); + //glow.z should be negative, so we're doing a sort of (1 / "angle") function + + //add "minimum anti-solar illumination" + temp2.x += .25; + + //increase ambient when there are more clouds + 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 + * // The following line of code performs the equivalent of: + * float ambAlpha = tmpAmbient.a; + * float ambValue = dot(vec3(tmpAmbient), vec3(0.577)); // projection onto <1/rt(3), 1/rt(3), 1/rt(3)>, the neutral white-black axis + * vec3 ambHueSat = vec3(tmpAmbient) - vec3(ambValue); + * tmpAmbient = vec4(RenderSSAOEffect.valueFactor * vec3(ambValue) + RenderSSAOEffect.saturationFactor *(1.0 - ambFactor) * ambHueSat, ambAlpha); + */ + tmpAmbient = vec4(mix(ssao_effect_mat * tmpAmbient.rgb, tmpAmbient.rgb, ambFactor), tmpAmbient.a); + + //haze color + setAdditiveColor( + 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 + setSunlitColor(pow(vec3(sunlight * .5), vec3(global_gamma)) * global_gamma); + setAmblitColor(pow(vec3(tmpAmbient * .25), vec3(global_gamma)) * global_gamma); + setAdditiveColor(pow(getAdditiveColor() * vec3(1.0 - temp1), vec3(global_gamma)) * global_gamma); +} + +vec3 atmosLighting(vec3 light) +{ + light *= getAtmosAttenuation().r; + light += getAdditiveColor(); + return (2.0 * light); +} + +vec3 atmosTransport(vec3 light) { + light *= getAtmosAttenuation().r; + light += getAdditiveColor() * 2.0; + return light; +} + +vec3 fullbrightAtmosTransport(vec3 light) { + float brightness = dot(light.rgb, vec3(0.33333)); + + return mix(atmosTransport(light.rgb), light.rgb + getAdditiveColor().rgb, brightness * brightness); +} + + + +vec3 atmosGetDiffuseSunlightColor() +{ + return getSunlitColor(); +} + +vec3 scaleDownLight(vec3 light) +{ + return (light / scene_light_strength ); +} + +vec3 scaleUpLight(vec3 light) +{ + return (light * scene_light_strength); +} + +vec3 atmosAmbient(vec3 light) +{ + return getAmblitColor() + light / 2.0; +} + +vec3 atmosAffectDirectionalLight(float lightIntensity) +{ + return getSunlitColor() * lightIntensity; +} + +vec3 scaleSoftClip(vec3 light) +{ + //soft clip effect: + light = 1. - clamp(light, vec3(0.), vec3(1.)); + light = 1. - pow(light, gamma.xxx); + + return light; +} + + +vec3 fullbrightScaleSoftClip(vec3 light) +{ + //soft clip effect: + return light; +} + +void main() +{ + vec2 tc = vary_fragcoord.xy; + float depth = texture2DRect(depthMap, tc.xy).r; + vec3 pos = getPosition_d(tc, depth).xyz; + vec4 norm = texture2DRect(normalMap, tc); + float envIntensity = norm.z; + norm.xyz = decode_normal(norm.xy); // unpack norm + + float da = max(dot(norm.xyz, sun_dir.xyz), 0.0); + + vec4 diffuse = texture2DRect(diffuseRect, tc); + + vec4 spec = texture2DRect(specularRect, vary_fragcoord.xy); + vec3 col; + float bloom = 0.0; + { + calcAtmospherics(pos.xyz, 1.0); + + col = atmosAmbient(vec3(0)); + float ambient = min(abs(dot(norm.xyz, sun_dir.xyz)), 1.0); + ambient *= 0.5; + ambient *= ambient; + ambient = (1.0-ambient); + + //col.rgb *= ambient; + + col += atmosAffectDirectionalLight(max(min(da, 1.0) * 2.8, 0.0)); + + col *= diffuse.rgb; + + vec3 refnormpersp = normalize(reflect(pos.xyz, norm.xyz)); + + if (spec.a > 0.0) // specular reflection + { + // the old infinite-sky shiny reflection + // + + 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) / 6; + col += spec_contrib; + } + + + col = mix(col.rgb, diffuse.rgb, diffuse.a); + + if (envIntensity > 0.0) + { //add environmentmap + vec3 env_vec = env_mat * refnormpersp; + + + vec3 refcol = textureCube(environmentMap, env_vec).rgb; + + col = mix(pow(col.rgb, vec3(1.0/2.2)), refcol, + envIntensity); + + col = pow(col, vec3(2.2)); + } + + if (norm.w < 0.5) + { + col = mix(atmosLighting(col), fullbrightAtmosTransport(col), diffuse.a); + col = mix(scaleSoftClip(col), fullbrightScaleSoftClip(col), diffuse.a); + } + + //col = vec3(1,0,1); + //col.g = envIntensity; + } + + frag_color.rgb = col; + + frag_color.a = bloom; +} |