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-rw-r--r--indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl570
1 files changed, 138 insertions, 432 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..b0dff0c628 100644
--- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl
@@ -1,5 +1,5 @@
/**
- * @file softenLightF.glsl
+ * @file class2/deferred/softenLightF.glsl
*
* $LicenseInfo:firstyear=2007&license=viewerlgpl$
* Second Life Viewer Source Code
@@ -22,8 +22,9 @@
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
-
+
#extension GL_ARB_texture_rectangle : enable
+#extension GL_ARB_shader_texture_lod : enable
/*[EXTRA_CODE_HERE]*/
@@ -39,456 +40,161 @@ uniform sampler2DRect normalMap;
uniform sampler2DRect lightMap;
uniform sampler2DRect depthMap;
uniform samplerCube environmentMap;
-uniform sampler2D lightFunc;
+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 vec4 shadow_clip;
-uniform mat3 ssao_effect_mat;
uniform vec3 sun_dir;
+uniform vec3 moon_dir;
+uniform int sun_up_factor;
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 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;
-}
-
-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).r;
- 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;
-}
+vec3 getNorm(vec2 pos_screen);
+vec4 getPositionWithDepth(vec2 pos_screen, float depth);
-void setAtmosAttenuation(vec3 v)
-{
- vary_AtmosAttenuation = v;
-}
+void calcAtmosphericVars(vec3 inPositionEye, vec3 light_dir, float ambFactor, out vec3 sunlit, out vec3 amblit, out vec3 additive, out vec3 atten, bool use_ao);
+float getAmbientClamp();
+vec3 atmosFragLighting(vec3 l, vec3 additive, vec3 atten);
+vec3 scaleSoftClipFrag(vec3 l);
+vec3 fullbrightAtmosTransportFrag(vec3 light, vec3 additive, vec3 atten);
+vec3 fullbrightScaleSoftClip(vec3 light);
-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));
-}
+vec3 linear_to_srgb(vec3 c);
+vec3 srgb_to_linear(vec3 c);
#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)
+void main()
{
- //soft clip effect:
- light = 1. - clamp(light, vec3(0.), vec3(1.));
- light = 1. - pow(light, gamma.xxx);
-
- return light;
-}
-
+ vec2 tc = vary_fragcoord.xy;
+ float depth = texture2DRect(depthMap, tc.xy).r;
+ vec4 pos = getPositionWithDepth(tc, depth);
+ vec4 norm = texture2DRect(normalMap, tc);
+ float envIntensity = norm.z;
+ norm.xyz = getNorm(tc);
+
+ vec3 light_dir = (sun_up_factor == 1) ? sun_dir : moon_dir;
+ float da = clamp(dot(norm.xyz, light_dir.xyz), 0.0, 1.0);
+ float light_gamma = 1.0/1.3;
+ da = pow(da, light_gamma);
+
+ vec4 diffuse = texture2DRect(diffuseRect, tc);
+
+ vec4 spec = texture2DRect(specularRect, vary_fragcoord.xy);
+
+ vec2 scol_ambocc = texture2DRect(lightMap, vary_fragcoord.xy).rg;
+ scol_ambocc = pow(scol_ambocc, vec2(light_gamma));
+
+ float scol = max(scol_ambocc.r, diffuse.a);
+
+ float ambocc = scol_ambocc.g;
+
+ vec3 color = vec3(0);
+ float bloom = 0.0;
+ {
+ vec3 sunlit;
+ vec3 amblit;
+ vec3 additive;
+ vec3 atten;
+
+ calcAtmosphericVars(pos.xyz, light_dir, ambocc, sunlit, amblit, additive, atten, true);
+
+ color.rgb = amblit;
+
+ float ambient = min(abs(dot(norm.xyz, sun_dir.xyz)), 1.0);
+ ambient *= 0.5;
+ ambient *= ambient;
+ ambient = (1.0 - ambient);
+
+ color.rgb *= ambient;
+
+ vec3 sun_contrib = min(da, scol) * sunlit;
+
+ color.rgb += sun_contrib;
+
+ color.rgb *= diffuse.rgb;
+
+ vec3 refnormpersp = normalize(reflect(pos.xyz, norm.xyz));
+
+ if (spec.a > 0.0) // specular reflection
+ {
+
+#if 1 //EEP
+ vec3 npos = -normalize(pos.xyz);
+
+ //vec3 ref = dot(pos+lv, norm);
+ vec3 h = normalize(light_dir.xyz+npos);
+ float nh = dot(norm.xyz, h);
+ float nv = dot(norm.xyz, npos);
+ float vh = dot(npos, h);
+ float sa = nh;
+ float fres = pow(1 - dot(h, npos), 5)*0.4+0.5;
+
+ float gtdenom = 2 * nh;
+ float gt = max(0, min(gtdenom * nv / vh, gtdenom * da / vh));
+
+ if (nh > 0.0)
+ {
+ float scontrib = fres*texture2D(lightFunc, vec2(nh, spec.a)).r*gt/(nh*da);
+ vec3 sp = sun_contrib*scontrib / 6.0;
+ sp = clamp(sp, vec3(0), vec3(1));
+ bloom += dot(sp, sp) / 4.0;
+ color += sp * spec.rgb;
+ }
+#else //PRODUCTION
+ float sa = dot(refnormpersp, light_dir.xyz);
+ vec3 dumbshiny = sunlit*(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;
+ color.rgb += spec_contrib;
+#endif
-vec3 fullbrightScaleSoftClip(vec3 light)
-{
- //soft clip effect:
- return light;
+ }
+
+ color.rgb = mix(color.rgb, diffuse.rgb, diffuse.a);
+
+ if (envIntensity > 0.0)
+ { //add environmentmap
+ vec3 env_vec = env_mat * refnormpersp;
+ vec3 reflected_color = textureCube(environmentMap, env_vec).rgb;
+ color = mix(color.rgb, reflected_color, envIntensity);
+ }
+
+ if (norm.w < 0.5)
+ {
+ color = mix(atmosFragLighting(color, additive, atten), fullbrightAtmosTransportFrag(color, additive, atten), diffuse.a);
+ color = mix(scaleSoftClipFrag(color), fullbrightScaleSoftClip(color), diffuse.a);
+ }
+
+ #ifdef WATER_FOG
+ vec4 fogged = applyWaterFogView(pos.xyz,vec4(color, bloom));
+ color = fogged.rgb;
+ bloom = fogged.a;
+ #endif
+
+ }
+
+// linear debuggables
+//color.rgb = vec3(final_da);
+//color.rgb = vec3(ambient);
+//color.rgb = vec3(scol);
+//color.rgb = diffuse_srgb.rgb;
+
+ // convert to linear as fullscreen lights need to sum in linear colorspace
+ // and will be gamma (re)corrected downstream...
+
+ frag_color.rgb = srgb_to_linear(color.rgb);
+ frag_color.a = bloom;
}
-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);
-
- float light_gamma = 1.0/1.3;
- da = pow(da, light_gamma);
-
-
- vec4 diffuse = texture2DRect(diffuseRect, tc);
-
- //convert to gamma space
- diffuse.rgb = linear_to_srgb(diffuse.rgb);
-
- vec3 col;
- float bloom = 0.0;
- {
- vec4 spec = texture2DRect(specularRect, vary_fragcoord.xy);
-
- vec2 scol_ambocc = texture2DRect(lightMap, vary_fragcoord.xy).rg;
- scol_ambocc = pow(scol_ambocc, vec2(light_gamma));
-
- float scol = max(scol_ambocc.r, diffuse.a);
-
-
-
- float ambocc = scol_ambocc.g;
-
- calcAtmospherics(pos.xyz, ambocc);
-
- 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, scol), 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*scol_ambocc.r*(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, 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(col.rgb, refcol,
- envIntensity);
-
- }
-
- if (norm.w < 0.5)
- {
- col = mix(atmosLighting(col), fullbrightAtmosTransport(col), diffuse.a);
- col = mix(scaleSoftClip(col), fullbrightScaleSoftClip(col), diffuse.a);
- }
-
- #ifdef WATER_FOG
- vec4 fogged = applyWaterFogDeferred(pos,vec4(col, bloom));
- col = fogged.rgb;
- bloom = fogged.a;
- #endif
-
- col = srgb_to_linear(col);
-
- //col = vec3(1,0,1);
- //col.g = envIntensity;
- }
-
- frag_color.rgb = col;
- frag_color.a = bloom;
-}
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