summaryrefslogtreecommitdiff
path: root/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
diff options
context:
space:
mode:
Diffstat (limited to 'indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl')
-rw-r--r--indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl327
1 files changed, 23 insertions, 304 deletions
diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
index f7832521fa..1e2c49215f 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
@@ -49,7 +49,6 @@ 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;
@@ -70,69 +69,20 @@ 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;
-vec3 srgb_to_linear(vec3 cs)
-{
- vec3 low_range = cs / vec3(12.92);
- vec3 high_range = pow((cs+vec3(0.055))/vec3(1.055), vec3(2.4));
- bvec3 lte = lessThanEqual(cs,vec3(0.04045));
-
-#ifdef OLD_SELECT
- vec3 result;
- result.r = lte.r ? low_range.r : high_range.r;
- result.g = lte.g ? low_range.g : high_range.g;
- result.b = lte.b ? low_range.b : high_range.b;
- return result;
-#else
- return mix(high_range, low_range, lte);
-#endif
+vec3 srgb_to_linear(vec3 cs);
+vec3 linear_to_srgb(vec3 cl);
+vec3 decode_normal (vec2 enc);
-}
-
-vec3 linear_to_srgb(vec3 cl)
-{
- cl = clamp(cl, vec3(0), vec3(1));
- vec3 low_range = cl * 12.92;
- vec3 high_range = 1.055 * pow(cl, vec3(0.41666)) - 0.055;
- bvec3 lt = lessThan(cl,vec3(0.0031308));
-
-#ifdef OLD_SELECT
- vec3 result;
- result.r = lt.r ? low_range.r : high_range.r;
- result.g = lt.g ? low_range.g : high_range.g;
- result.b = lt.b ? low_range.b : high_range.b;
- return result;
-#else
- return mix(high_range, low_range, lt);
-#endif
-
-}
-
-vec2 encode_normal(vec3 n)
-{
- float f = sqrt(8 * n.z + 8);
- return n.xy / f + 0.5;
-}
-
-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;
-}
+vec3 atmosFragAmbient(vec3 l, vec3 ambient);
+vec3 atmosFragLighting(vec3 l, vec3 additive, vec3 atten);
+vec3 scaleFragSoftClip(vec3 l);
+vec3 atmosFragAffectDirectionalLight(float intensity, vec3 sunlit);
+void calcFragAtmospherics(vec3 inPositionEye, float ambFactor, out vec3 sunlit, out vec3 amblit, out vec3 additive, out vec3 atten);
+vec3 fullbrightFragAtmosTransport(vec3 l, vec3 additive, vec3 atten);
+vec3 fullbrightScaleSoftClipFrag(vec3 l, vec3 atten);
vec4 getPosition_d(vec2 pos_screen, float depth)
{
@@ -152,247 +102,11 @@ vec4 getPosition(vec2 pos_screen)
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);*/
-
- setSunlitColor(vec3(sunlight * .5));
- setAmblitColor(vec3(tmpAmbient * .25));
- setAdditiveColor(getAdditiveColor() * vec3(1.0 - temp1));
-}
#ifdef WATER_FOG
-uniform vec4 waterPlane;
-uniform vec4 waterFogColor;
-uniform float waterFogDensity;
-uniform float waterFogKS;
-
-vec4 applyWaterFogDeferred(vec3 pos, vec4 color)
-{
- //normalize view vector
- vec3 view = normalize(pos);
- float es = -(dot(view, waterPlane.xyz));
-
- //find intersection point with water plane and eye vector
-
- //get eye depth
- float e0 = max(-waterPlane.w, 0.0);
-
- vec3 int_v = waterPlane.w > 0.0 ? view * waterPlane.w/es : vec3(0.0, 0.0, 0.0);
-
- //get object depth
- float depth = length(pos - int_v);
-
- //get "thickness" of water
- float l = max(depth, 0.1);
-
- float kd = waterFogDensity;
- float ks = waterFogKS;
- vec4 kc = waterFogColor;
-
- float F = 0.98;
-
- float t1 = -kd * pow(F, ks * e0);
- float t2 = kd + ks * es;
- float t3 = pow(F, t2*l) - 1.0;
-
- float L = min(t1/t2*t3, 1.0);
-
- float D = pow(0.98, l*kd);
-
- color.rgb = color.rgb * D + kc.rgb * L;
- color.a = kc.a + color.a;
-
- return color;
-}
+vec4 applyWaterFogView(vec3 pos, vec4 color);
#endif
-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;
@@ -426,10 +140,15 @@ void main()
float ambocc = scol_ambocc.g;
+
+ vec3 sunlit;
+ vec3 amblit;
+ vec3 additive;
+ vec3 atten;
- calcAtmospherics(pos.xyz, ambocc);
+ calcFragAtmospherics(pos.xyz, ambocc, sunlit, amblit, additive, atten);
- col = atmosAmbient(vec3(0));
+ col = atmosFragAmbient(vec3(0), amblit);
float ambient = min(abs(dot(norm.xyz, sun_dir.xyz)), 1.0);
ambient *= 0.5;
ambient *= ambient;
@@ -437,7 +156,7 @@ void main()
col.rgb *= ambient;
- col += atmosAffectDirectionalLight(max(min(da, scol), 0.0));
+ col += atmosFragAffectDirectionalLight(max(min(da, scol), 0.0), sunlit);
col *= diffuse.rgb;
@@ -449,7 +168,7 @@ void main()
//
float sa = dot(refnormpersp, sun_dir.xyz);
- vec3 dumbshiny = vary_SunlitColor*scol_ambocc.r*(texture2D(lightFunc, vec2(sa, spec.a)).r);
+ vec3 dumbshiny = sunlit*scol_ambocc.r*(texture2D(lightFunc, vec2(sa, spec.a)).r);
// add the two types of shiny together
vec3 spec_contrib = dumbshiny * spec.rgb;
@@ -473,12 +192,12 @@ void main()
if (norm.w < 0.5)
{
- col = mix(atmosLighting(col), fullbrightAtmosTransport(col), diffuse.a);
- col = mix(scaleSoftClip(col), fullbrightScaleSoftClip(col), diffuse.a);
+ col = mix(atmosFragLighting(col, additive, atten), fullbrightFragAtmosTransport(col, atten, additive), diffuse.a);
+ col = mix(scaleFragSoftClip(col), fullbrightScaleSoftClipFrag(col, atten), diffuse.a);
}
#ifdef WATER_FOG
- vec4 fogged = applyWaterFogDeferred(pos,vec4(col, bloom));
+ vec4 fogged = applyWaterFogView(pos,vec4(col, bloom));
col = fogged.rgb;
bloom = fogged.a;
#endif