diff --git a/indra/newview/app_settings/shaders/class1/deferred/skyF.glsl b/indra/newview/app_settings/shaders/class1/deferred/skyF.glsl
index 331249dc33b509b52648944fa4363a81392a4f24..9772063f037aaca16d13d094671e9c2f5138cc61 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/skyF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/skyF.glsl
@@ -25,6 +25,17 @@
/*[EXTRA_CODE_HERE]*/
+// Inputs
+VARYING vec4 vary_HazeColor;
+VARYING float vary_LightNormPosDot;
+
+uniform sampler2D rainbow_map;
+uniform sampler2D halo_map;
+
+uniform float moisture_level;
+uniform float droplet_radius;
+uniform float ice_level;
+
#ifdef DEFINE_GL_FRAGCOLOR
out vec4 frag_data[3];
#else
@@ -35,11 +46,27 @@ out vec4 frag_data[3];
// The fragment shader for the sky
/////////////////////////////////////////////////////////////////////////
-VARYING vec4 vary_HazeColor;
+vec3 rainbow(float d)
+{
+ // 'Interesting' values of d are -0.75 .. -0.825, i.e. when view vec nearly opposite of sun vec
+ // Rainbox tex is mapped with REPEAT, so -.75 as tex coord is same as 0.25. -0.825 -> 0.175. etc.
+ // SL-13629
+ // Unfortunately the texture is inverted, so we need to invert the y coord, but keep the 'interesting'
+ // part within the same 0.175..0.250 range, i.e. d = (1 - d) - 1.575
+ d = clamp(-0.575 - d, 0.0, 1.0);
+ float rad = (droplet_radius - 5.0f) / 1024.0f;
+ return pow(texture2D(rainbow_map, vec2(rad+0.5, d)).rgb, vec3(1.8)) * moisture_level;
+}
+
+vec3 halo22(float d)
+{
+ d = clamp(d, 0.1, 1.0);
+ float v = sqrt(clamp(1 - (d * d), 0, 1));
+ return texture2D(halo_map, vec2(0, v)).rgb * ice_level;
+}
/// Soft clips the light with a gamma correction
vec3 scaleSoftClip(vec3 light);
-vec3 srgb_to_linear(vec3 c);
void main()
{
@@ -48,14 +75,18 @@ void main()
// the fragment) if the sky wouldn't show up because the clouds
// are fully opaque.
- vec4 color;
- color = vary_HazeColor;
+ vec4 color = vary_HazeColor;
+ float rel_pos_lightnorm = vary_LightNormPosDot;
+ float optic_d = rel_pos_lightnorm;
+ vec3 halo_22 = halo22(optic_d);
+ color.rgb += rainbow(optic_d);
+ color.rgb += halo_22;
color.rgb *= 2.;
color.rgb = scaleSoftClip(color.rgb);
- /// Gamma correct for WL (soft clip effect).
- frag_data[0] = vec4(color.rgb, 0.0);
+ // Gamma correct for WL (soft clip effect).
+ frag_data[0] = vec4(color.rgb, 1.0);
frag_data[1] = vec4(0.0,0.0,0.0,0.0);
frag_data[2] = vec4(0.0,0.0,0.0,1.0); //1.0 in norm.w masks off fog
diff --git a/indra/newview/app_settings/shaders/class1/deferred/skyV.glsl b/indra/newview/app_settings/shaders/class1/deferred/skyV.glsl
index 28a1faf24f75c47a3991d47b7a2b7e1d83731bc4..6db4690bfffddd1de1a31e5f1527a12f75c6d51f 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/skyV.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/skyV.glsl
@@ -33,6 +33,7 @@ ATTRIBUTE vec3 position;
// Output parameters
VARYING vec4 vary_HazeColor;
+VARYING float vary_LightNormPosDot;
// Inputs
uniform vec3 camPosLocal;
@@ -72,27 +73,29 @@ void main()
vec3 rel_pos = position.xyz - camPosLocal.xyz + vec3(0, 50, 0);
// Adj position vector to clamp altitude
- if (rel_pos.y > 0)
+ if (rel_pos.y > 0.)
{
rel_pos *= (max_y / rel_pos.y);
}
- if (rel_pos.y < 0)
+ if (rel_pos.y < 0.)
{
rel_pos *= (-32000. / rel_pos.y);
}
- // Can normalize then
- vec3 rel_pos_norm = normalize(rel_pos);
+ // Normalized
+ vec3 rel_pos_norm = normalize(rel_pos);
+ float rel_pos_len = length(rel_pos);
- float rel_pos_len = length(rel_pos);
+ // Grab this value and pass to frag shader for rainbows
+ float rel_pos_lightnorm_dot = dot(rel_pos_norm, lightnorm.xyz);
+ vary_LightNormPosDot = rel_pos_lightnorm_dot;
// Initialize temp variables
vec4 sunlight = (sun_up_factor == 1) ? sunlight_color : moonlight_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);
+ vec4 light_atten = (blue_density + vec4(haze_density * 0.25)) * (density_multiplier * max_y);
// Calculate relative weights
vec4 combined_haze = abs(blue_density) + vec4(abs(haze_density));
@@ -112,7 +115,7 @@ void main()
combined_haze = exp(-combined_haze * density_dist);
// Compute haze glow
- float haze_glow = 1.0 - dot(rel_pos_norm, lightnorm.xyz);
+ float haze_glow = 1.0 - rel_pos_lightnorm_dot;
// haze_glow is 0 at the sun and increases away from sun
haze_glow = max(haze_glow, .001);
// Set a minimum "angle" (smaller glow.y allows tighter, brighter hotspot)
@@ -123,30 +126,30 @@ void main()
// Add "minimum anti-solar illumination"
// For sun, add to glow. For moon, remove glow entirely. SL-13768
- haze_glow = (sun_moon_glow_factor < 1.0) ? 0.0 : (haze_glow + 0.25);
+ haze_glow = (sun_moon_glow_factor < 1.0) ? 0.0 : (sun_moon_glow_factor * (haze_glow + 0.25));
- vec4 color =
- (blue_horizon * blue_weight * (sunlight + ambient_color) + (haze_horizon * haze_weight) * (sunlight * haze_glow + ambient_color));
+ // Haze color above cloud
+ vec4 color = (blue_horizon * blue_weight * (sunlight + ambient_color)
+ + (haze_horizon * haze_weight) * (sunlight * haze_glow + ambient_color));
// Final atmosphere additive
color *= (1. - combined_haze);
// Increase ambient when there are more clouds
- vec4 tmpAmbient = ambient_color;
- tmpAmbient += max(vec4(0), (1. - ambient_color)) * cloud_shadow * 0.5;
+ vec4 ambient = ambient_color + max(vec4(0), (1. - ambient_color)) * cloud_shadow * 0.5;
// Dim sunlight by cloud shadow percentage
sunlight *= max(0.0, (1. - cloud_shadow));
// Haze color below cloud
- vec4 additiveColorBelowCloud =
- (blue_horizon * blue_weight * (sunlight + tmpAmbient) + (haze_horizon * haze_weight) * (sunlight * haze_glow + tmpAmbient));
+ vec4 add_below_cloud = (blue_horizon * blue_weight * (sunlight + ambient)
+ + (haze_horizon * haze_weight) * (sunlight * haze_glow + ambient));
// Attenuate cloud color by atmosphere
combined_haze = sqrt(combined_haze); // less atmos opacity (more transparency) below clouds
// At horizon, blend high altitude sky color towards the darker color below the clouds
- color += (additiveColorBelowCloud - color) * (1. - sqrt(combined_haze));
+ color += (add_below_cloud - color) * (1. - sqrt(combined_haze));
// Haze color above cloud
vary_HazeColor = color;
diff --git a/indra/newview/app_settings/shaders/class2/deferred/skyF.glsl b/indra/newview/app_settings/shaders/class2/deferred/skyF.glsl
deleted file mode 100644
index 6841a8194f6c27ebe4f84c48e82f9608d6e9e84d..0000000000000000000000000000000000000000
--- a/indra/newview/app_settings/shaders/class2/deferred/skyF.glsl
+++ /dev/null
@@ -1,199 +0,0 @@
-/**
- * @file class2/deferred/skyF.glsl
- *
- * $LicenseInfo:firstyear=2005&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2005, 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
- * $/LicenseInfo$
- */
-
-uniform mat4 modelview_projection_matrix;
-
-// SKY ////////////////////////////////////////////////////////////////////////
-// The vertex shader for creating the atmospheric sky
-///////////////////////////////////////////////////////////////////////////////
-
-// Inputs
-uniform vec3 camPosLocal;
-
-uniform vec4 lightnorm;
-uniform vec4 sunlight_color;
-uniform vec4 moonlight_color;
-uniform int sun_up_factor;
-uniform vec4 ambient_color;
-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 sun_moon_glow_factor;
-
-uniform vec4 cloud_color;
-
-#ifdef DEFINE_GL_FRAGCOLOR
-out vec4 frag_data[3];
-#else
-#define frag_data gl_FragData
-#endif
-
-VARYING vec3 pos;
-
-/////////////////////////////////////////////////////////////////////////
-// The fragment shader for the sky
-/////////////////////////////////////////////////////////////////////////
-
-uniform sampler2D rainbow_map;
-uniform sampler2D halo_map;
-
-uniform float moisture_level;
-uniform float droplet_radius;
-uniform float ice_level;
-
-vec3 rainbow(float d)
-{
- // d is the dot product of view and sun directions, so ranging -1.0..1.0
- // 'interesting' values of d are the range -0.75..-0.825, when view is nearly opposite of sun vec
- // Rainbox texture mode is GL_REPEAT, so tc of -.75 is equiv to 0.25, -0.825 equiv to 0.175.
-
- // SL-13629 Rainbow texture has colors within the correct .175...250 range, but order is inverted.
- // Rather than replace the texture, we mirror and translate the y tc to keep the colors within the
- // interesting range, but in reversed order: i.e. d = (1 - d) - 1.575
- d = clamp(-0.575 - d, 0.0, 1.0);
-
- // With the colors in the lower 1/4 of the texture, inverting the coords leaves most of it inaccessible.
- // So, we can stretch the texcoord above the colors (ie > 0.25) to fill the entire remaining coordinate
- // space. This improves gradation, reduces banding within the rainbow interior. (1-0.25) / (0.425/0.25) = 4.2857
- float interior_coord = max(0.0, d - 0.25) * 4.2857;
- d = clamp(d, 0.0, 0.25) + interior_coord;
-
- float rad = (droplet_radius - 5.0f) / 1024.0f;
- return pow(texture2D(rainbow_map, vec2(rad, d)).rgb, vec3(1.8)) * moisture_level;
-}
-
-vec3 halo22(float d)
-{
- d = clamp(d, 0.1, 1.0);
- float v = sqrt(clamp(1 - (d * d), 0, 1));
- return texture2D(halo_map, vec2(0, v)).rgb * ice_level;
-}
-
-/// Soft clips the light with a gamma correction
-vec3 scaleSoftClip(vec3 light);
-
-void main()
-{
- // World / view / projection
- // Get relative position (offset why?)
- vec3 rel_pos = pos.xyz - camPosLocal.xyz + vec3(0, 50, 0);
-
- // Adj position vector to clamp altitude
- if (rel_pos.y > 0.)
- {
- rel_pos *= (max_y / rel_pos.y);
- }
- if (rel_pos.y < 0.)
- {
- rel_pos *= (-32000. / rel_pos.y);
- }
-
- // Normalized
- vec3 rel_pos_norm = normalize(rel_pos);
- float rel_pos_len = length(rel_pos);
-
- // Initialize temp variables
- vec4 sunlight = (sun_up_factor == 1) ? sunlight_color : moonlight_color;
-
- // Sunlight attenuation effect (hue and brightness) due to atmosphere
- // this is used later for sunlight modulation at various altitudes
- vec4 light_atten = (blue_density + vec4(haze_density * 0.25)) * (density_multiplier * max_y);
-
- // Calculate relative weights
- vec4 combined_haze = abs(blue_density) + vec4(abs(haze_density));
- vec4 blue_weight = blue_density / combined_haze;
- vec4 haze_weight = haze_density / combined_haze;
-
- // Compute sunlight from rel_pos & lightnorm (for long rays like sky)
- float off_axis = 1.0 / max(1e-6, max(0, rel_pos_norm.y) + lightnorm.y);
- sunlight *= exp(-light_atten * off_axis);
-
- // Distance
- float density_dist = rel_pos_len * density_multiplier;
-
- // Transparency (-> combined_haze)
- // ATI Bugfix -- can't store combined_haze*density_dist in a variable because the ati
- // compiler gets confused.
- combined_haze = exp(-combined_haze * density_dist);
-
- // Compute haze glow
- float haze_glow = dot(rel_pos_norm, lightnorm.xyz);
- haze_glow = 1. - haze_glow;
- // haze_glow is 0 at the sun and increases away from sun
- haze_glow = max(haze_glow, .001);
- // Set a minimum "angle" (smaller glow.y allows tighter, brighter hotspot)
- haze_glow *= glow.x;
- // Higher glow.x gives dimmer glow (because next step is 1 / "angle")
- haze_glow = pow(haze_glow, glow.z);
- // glow.z should be negative, so we're doing a sort of (1 / "angle") function
-
- // Add "minimum anti-solar illumination"
- // For sun, add to glow. For moon, remove glow entirely. SL-13768
- haze_glow = (sun_moon_glow_factor < 1.0) ? 0.0 : (sun_moon_glow_factor * (haze_glow + 0.25));
-
- // Haze color above cloud
- vec4 color = blue_horizon * blue_weight * (sunlight + ambient_color)
- + haze_horizon * haze_weight * (sunlight * haze_glow + ambient_color);
-
- // Final atmosphere additive
- color *= (1. - combined_haze);
-
- // Increase ambient when there are more clouds
- // TODO 9/20: DJH what does this do? max(0,(1-ambient)) will change the color
- vec4 ambient = ambient_color + max(vec4(0), (1. - ambient_color)) * cloud_shadow * 0.5;
-
- // Dim sunlight by cloud shadow percentage
- sunlight *= max(0.0, (1. - cloud_shadow));
-
- // Haze color below cloud
- vec4 add_below_cloud = blue_horizon * blue_weight * (sunlight + ambient)
- + haze_horizon * haze_weight * (sunlight * haze_glow + ambient);
-
- // Attenuate cloud color by atmosphere
- combined_haze = sqrt(combined_haze); // less atmos opacity (more transparency) below clouds
-
- // At horizon, blend high altitude sky color towards the darker color below the clouds
- color += (add_below_cloud - color) * (1. - sqrt(combined_haze));
-
- float optic_d = dot(rel_pos_norm, lightnorm.xyz);
- vec3 halo_22 = halo22(optic_d);
- color.rgb += rainbow(optic_d);
- color.rgb += halo_22;
- color.rgb *= 2.;
- color.rgb = scaleSoftClip(color.rgb);
-
- // Gamma correct for WL (soft clip effect).
- frag_data[0] = vec4(color.rgb, 1.0);
- frag_data[1] = vec4(0.0, 0.0, 0.0, 0.0);
- frag_data[2] = vec4(0.0, 0.0, 0.0, 1.0); // 1.0 in norm.w masks off fog
-}
diff --git a/indra/newview/app_settings/shaders/class2/deferred/skyV.glsl b/indra/newview/app_settings/shaders/class2/deferred/skyV.glsl
deleted file mode 100644
index bcf775577ab2dc11bacd4f31bf230da392bf1b42..0000000000000000000000000000000000000000
--- a/indra/newview/app_settings/shaders/class2/deferred/skyV.glsl
+++ /dev/null
@@ -1,42 +0,0 @@
-/**
- * @file WLSkyV.glsl
- *
- * $LicenseInfo:firstyear=2005&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2005, 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
- * $/LicenseInfo$
- */
-
-uniform mat4 modelview_projection_matrix;
-
-ATTRIBUTE vec3 position;
-
-// SKY ////////////////////////////////////////////////////////////////////////
-// The vertex shader for creating the atmospheric sky
-///////////////////////////////////////////////////////////////////////////////
-
-VARYING vec3 pos;
-
-void main()
-{
-
- // World / view / projection
- pos = position.xyz;
- gl_Position = modelview_projection_matrix * vec4(position.xyz, 1.0);
-}