diff options
Diffstat (limited to 'indra/newview/app_settings/shaders')
24 files changed, 281 insertions, 334 deletions
diff --git a/indra/newview/app_settings/shaders/class1/deferred/cloudsV.glsl b/indra/newview/app_settings/shaders/class1/deferred/cloudsV.glsl index b7036e02cf..8e0a001403 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/cloudsV.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/cloudsV.glsl @@ -1,24 +1,24 @@ -/** +/** * @file WLCloudsV.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 * $/LicenseInfo$ */ @@ -33,26 +33,26 @@ ATTRIBUTE vec2 texcoord0; /////////////////////////////////////////////////////////////////////////////// // Output parameters -VARYING vec4 vary_CloudColorSun; -VARYING vec4 vary_CloudColorAmbient; +VARYING vec4 vary_CloudColorSun; +VARYING vec4 vary_CloudColorAmbient; VARYING float vary_CloudDensity; -VARYING vec2 vary_texcoord0; -VARYING vec2 vary_texcoord1; -VARYING vec2 vary_texcoord2; -VARYING vec2 vary_texcoord3; +VARYING vec2 vary_texcoord0; +VARYING vec2 vary_texcoord1; +VARYING vec2 vary_texcoord2; +VARYING vec2 vary_texcoord3; VARYING float altitude_blend_factor; // 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 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; @@ -60,7 +60,7 @@ uniform float cloud_shadow; uniform float density_multiplier; uniform float max_y; -uniform vec4 glow; +uniform vec4 glow; uniform float sun_moon_glow_factor; uniform vec4 cloud_color; @@ -75,53 +75,53 @@ uniform float cloud_scale; // indra\newview\llsettingsvo.cpp void main() { - // World / view / projection - gl_Position = modelview_projection_matrix * vec4(position.xyz, 1.0); + // World / view / projection + gl_Position = modelview_projection_matrix * vec4(position.xyz, 1.0); - // Texture coords + // Texture coords // SL-13084 EEP added support for custom cloud textures -- flip them horizontally to match the preview of Clouds > Cloud Scroll vary_texcoord0 = vec2(-texcoord0.x, texcoord0.y); // See: LLSettingsVOSky::applySpecial - vary_texcoord0.xy -= 0.5; - vary_texcoord0.xy /= cloud_scale; - vary_texcoord0.xy += 0.5; + vary_texcoord0.xy -= 0.5; + vary_texcoord0.xy /= cloud_scale; + vary_texcoord0.xy += 0.5; - vary_texcoord1 = vary_texcoord0; - vary_texcoord1.x += lightnorm.x * 0.0125; - vary_texcoord1.y += lightnorm.z * 0.0125; + vary_texcoord1 = vary_texcoord0; + vary_texcoord1.x += lightnorm.x * 0.0125; + vary_texcoord1.y += lightnorm.z * 0.0125; - vary_texcoord2 = vary_texcoord0 * 16.; - vary_texcoord3 = vary_texcoord1 * 16.; + vary_texcoord2 = vary_texcoord0 * 16.; + vary_texcoord3 = vary_texcoord1 * 16.; - // Get relative position + // Get relative position vec3 rel_pos = position.xyz - camPosLocal.xyz + vec3(0, 50, 0); altitude_blend_factor = clamp((rel_pos.y + 512.0) / max_y, 0.0, 1.0); - // Set altitude + // Set altitude if (rel_pos.y > 0) - { + { rel_pos *= (max_y / rel_pos.y); - } + } if (rel_pos.y < 0) - { - altitude_blend_factor = 0; // SL-11589 Fix clouds drooping below horizon + { + altitude_blend_factor = 0; // SL-11589 Fix clouds drooping below horizon rel_pos *= (-32000. / rel_pos.y); - } + } - // Can normalize then + // Can normalize then vec3 rel_pos_norm = normalize(rel_pos); float rel_pos_len = length(rel_pos); - // Initialize temp variables - vec4 sunlight = sunlight_color; - vec4 light_atten; + // Initialize temp variables + 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 + // 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); - // Calculate relative weights + // 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; @@ -130,63 +130,64 @@ void main() float off_axis = 1.0 / max(1e-6, max(0., rel_pos_norm.y) + lightnorm.y); sunlight *= exp(-light_atten * off_axis); - // Distance + // 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. + // compiler gets confused. combined_haze = exp(-combined_haze * density_dist); - // Compute haze glow + // Compute haze glow float haze_glow = 1.0 - dot(rel_pos_norm, lightnorm.xyz); // 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) + // 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") + // 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 + // glow.z should be negative, so we're doing a sort of (1 / "angle") function haze_glow *= sun_moon_glow_factor; - // Add "minimum anti-solar illumination" + // 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); - // Increase ambient when there are more clouds - vec4 tmpAmbient = ambient_color; - tmpAmbient += (1. - tmpAmbient) * cloud_shadow * 0.5; + // Increase ambient when there are more clouds + vec4 tmpAmbient = ambient_color; + tmpAmbient += (1. - tmpAmbient) * cloud_shadow * 0.5; - // Dim sunlight by cloud shadow percentage - sunlight *= (1. - cloud_shadow); + // Dim sunlight by cloud shadow percentage + sunlight *= (1. - cloud_shadow); - // Haze color below cloud + // Haze color below cloud vec4 additiveColorBelowCloud = (blue_horizon * blue_weight * (sunlight + tmpAmbient) + (haze_horizon * haze_weight) * (sunlight * haze_glow + tmpAmbient)); - // CLOUDS + // CLOUDS + sunlight = sunlight_color; // SL-14707 reset color -- Clouds are unusually dim in EEP off_axis = 1.0 / max(1e-6, lightnorm.y * 2.); sunlight *= exp(-light_atten * off_axis); - // Cloud color out + // Cloud color out vary_CloudColorSun = (sunlight * haze_glow) * cloud_color; - vary_CloudColorAmbient = tmpAmbient * cloud_color; - - // Attenuate cloud color by atmosphere + vary_CloudColorAmbient = tmpAmbient * cloud_color; + + // Attenuate cloud color by atmosphere combined_haze = sqrt(combined_haze); // less atmos opacity (more transparency) below clouds vary_CloudColorSun *= combined_haze; vary_CloudColorAmbient *= combined_haze; vec4 oHazeColorBelowCloud = additiveColorBelowCloud * (1. - combined_haze); - // Make a nice cloud density based on the cloud_shadow value that was passed in. - vary_CloudDensity = 2. * (cloud_shadow - 0.25); + // Make a nice cloud density based on the cloud_shadow value that was passed in. + vary_CloudDensity = 2. * (cloud_shadow - 0.25); - // Combine these to minimize register use - vary_CloudColorAmbient += oHazeColorBelowCloud; + // Combine these to minimize register use + vary_CloudColorAmbient += oHazeColorBelowCloud; - // needs this to compile on mac - // vary_AtmosAttenuation = vec3(0.0,0.0,0.0); + // needs this to compile on mac + //vary_AtmosAttenuation = vec3(0.0,0.0,0.0); - // END CLOUDS + // END CLOUDS } diff --git a/indra/newview/app_settings/shaders/class1/deferred/fullbrightShinyF.glsl b/indra/newview/app_settings/shaders/class1/deferred/fullbrightShinyF.glsl index 6b36d00f97..9fcee04c32 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/fullbrightShinyF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/fullbrightShinyF.glsl @@ -64,28 +64,27 @@ void main() #else vec4 color = texture2D(diffuseMap, vary_texcoord0.xy); #endif - + color.rgb *= vertex_color.rgb; // SL-9632 HUDs are affected by Atmosphere if (no_atmo == 0) { - vec3 sunlit; - vec3 amblit; - vec3 additive; - vec3 atten; + vec3 sunlit; + vec3 amblit; + vec3 additive; + vec3 atten; vec3 pos = vary_position.xyz/vary_position.w; - calcAtmosphericVars(pos.xyz, vec3(0), 1.0, sunlit, amblit, additive, atten, false); - - vec3 envColor = textureCube(environmentMap, vary_texcoord1.xyz).rgb; - float env_intensity = vertex_color.a; + calcAtmosphericVars(pos.xyz, vec3(0), 1.0, sunlit, amblit, additive, atten, false); + + vec3 envColor = textureCube(environmentMap, vary_texcoord1.xyz).rgb; + float env_intensity = vertex_color.a; //color.rgb = srgb_to_linear(color.rgb); color.rgb = mix(color.rgb, envColor.rgb, env_intensity); - - color.rgb = fullbrightAtmosTransportFrag(color.rgb, additive, atten); - color.rgb = fullbrightScaleSoftClip(color.rgb); + color.rgb = fullbrightAtmosTransportFrag(color.rgb, additive, atten); + color.rgb = fullbrightScaleSoftClip(color.rgb); } /* diff --git a/indra/newview/app_settings/shaders/class1/deferred/impostorF.glsl b/indra/newview/app_settings/shaders/class1/deferred/impostorF.glsl index d29e8a9423..eb6e56e718 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/impostorF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/impostorF.glsl @@ -40,6 +40,8 @@ uniform sampler2D specularMap; VARYING vec2 vary_texcoord0; +vec3 linear_to_srgb(vec3 c); + void main() { vec4 col = texture2D(diffuseMap, vary_texcoord0.xy); @@ -52,6 +54,7 @@ void main() vec4 norm = texture2D(normalMap, vary_texcoord0.xy); vec4 spec = texture2D(specularMap, vary_texcoord0.xy); + col.rgb = linear_to_srgb(col.rgb); frag_data[0] = vec4(col.rgb, 0.0); frag_data[1] = spec; frag_data[2] = vec4(norm.xy,0,0); diff --git a/indra/newview/app_settings/shaders/class1/deferred/materialF.glsl b/indra/newview/app_settings/shaders/class1/deferred/materialF.glsl index 80d19102b6..e1f7031af6 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/materialF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/materialF.glsl @@ -406,6 +406,8 @@ void main() vec3 light = vec3(0, 0, 0); + final_specular.rgb = srgb_to_linear(final_specular.rgb); // SL-14035 + #define LIGHT_LOOP(i) light.rgb += calcPointLightOrSpotLight(light_diffuse[i].rgb, npos, diffuse.rgb, final_specular, pos.xyz, norm.xyz, light_position[i], light_direction[i].xyz, light_attenuation[i].x, light_attenuation[i].y, light_attenuation[i].z, glare, light_attenuation[i].w ); LIGHT_LOOP(1) diff --git a/indra/newview/app_settings/shaders/class1/deferred/multiPointLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/multiPointLightF.glsl index 8c402fcb54..09c47165dd 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/multiPointLightF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/multiPointLightF.glsl @@ -73,9 +73,7 @@ void main() vec3 norm = getNorm(frag.xy); vec4 spec = texture2DRect(specularRect, frag.xy); - spec.rgb = srgb_to_linear(spec.rgb); vec3 diff = texture2DRect(diffuseRect, frag.xy).rgb; - diff.rgb = srgb_to_linear(diff.rgb); float noise = texture2D(noiseMap, frag.xy / 128.0).b; vec3 npos = normalize(-pos); diff --git a/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl index 9bba45bc4e..ec3fb9c543 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/multiSpotLightF.glsl @@ -182,10 +182,6 @@ void main() vec3 diff_tex = texture2DRect(diffuseRect, frag.xy).rgb; - // SL-12005 Projector light pops as we get closer, more objectionable than being in wrong color space. - // We can't switch to linear here unless we do it everywhere* - // *gbuffer is sRGB, convert to linear whenever sampling from it - diff_tex.rgb = srgb_to_linear(diff_tex.rgb); vec3 dlit = vec3(0, 0, 0); diff --git a/indra/newview/app_settings/shaders/class1/deferred/pointLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/pointLightF.glsl index d805c9ea48..18616a9bb3 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/pointLightF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/pointLightF.glsl @@ -90,7 +90,6 @@ void main() float noise = texture2D(noiseMap, frag.xy/128.0).b; vec3 col = texture2DRect(diffuseRect, frag.xy).rgb; - col.rgb = srgb_to_linear(col.rgb); float fa = falloff+1.0; float dist_atten = clamp(1.0-(dist-1.0*(1.0-fa))/fa, 0.0, 1.0); @@ -127,7 +126,7 @@ void main() { discard; } -//col.rgb = vec3(0); + frag_color.rgb = col; frag_color.a = 0.0; } diff --git a/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl index f80f1a985a..7f2c603f87 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/softenLightF.glsl @@ -90,7 +90,7 @@ void main() vec4 diffuse = texture2DRect(diffuseRect, tc); //convert to gamma space - //diffuse.rgb = linear_to_srgb(diffuse.rgb); + diffuse.rgb = linear_to_srgb(diffuse.rgb); // SL-14035 vec4 spec = texture2DRect(specularRect, vary_fragcoord.xy); vec3 color = vec3(0); diff --git a/indra/newview/app_settings/shaders/class1/deferred/sunDiscF.glsl b/indra/newview/app_settings/shaders/class1/deferred/sunDiscF.glsl index 454af2a9bc..b2fa5d8a25 100644 --- a/indra/newview/app_settings/shaders/class1/deferred/sunDiscF.glsl +++ b/indra/newview/app_settings/shaders/class1/deferred/sunDiscF.glsl @@ -49,10 +49,6 @@ void main() vec4 sunDiscB = texture2D(altDiffuseMap, vary_texcoord0.xy); vec4 c = mix(sunDiscA, sunDiscB, blend_factor); - c.rgb = srgb_to_linear(c.rgb); - c.rgb = clamp(c.rgb, vec3(0), vec3(1)); - c.rgb = pow(c.rgb, vec3(0.7f)); - //c.rgb = fullbrightAtmosTransport(c.rgb); c.rgb = fullbrightScaleSoftClip(c.rgb); diff --git a/indra/newview/app_settings/shaders/class1/lighting/lightFullbrightShinyF.glsl b/indra/newview/app_settings/shaders/class1/lighting/lightFullbrightShinyF.glsl index 6f7e777d23..5e966293c6 100644 --- a/indra/newview/app_settings/shaders/class1/lighting/lightFullbrightShinyF.glsl +++ b/indra/newview/app_settings/shaders/class1/lighting/lightFullbrightShinyF.glsl @@ -48,15 +48,15 @@ void fullbright_shiny_lighting() { vec4 color = diffuseLookup(vary_texcoord0.xy); color.rgb *= vertex_color.rgb; - + // SL-9632 HUDs are affected by Atmosphere if (no_atmo == 0) { - vec3 envColor = textureCube(environmentMap, vary_texcoord1.xyz).rgb; - color.rgb = mix(color.rgb, envColor.rgb, vertex_color.a*0.75); // MAGIC NUMBER SL-12574; ALM: Off, Quality > Low + vec3 envColor = textureCube(environmentMap, vary_texcoord1.xyz).rgb; + color.rgb = mix(color.rgb, envColor.rgb, vertex_color.a*0.75); // MAGIC NUMBER SL-12574; ALM: Off, Quality > Low - color.rgb = fullbrightShinyAtmosTransport(color.rgb); - color.rgb = fullbrightScaleSoftClip(color.rgb); + color.rgb = fullbrightShinyAtmosTransport(color.rgb); + color.rgb = fullbrightScaleSoftClip(color.rgb); } /* // NOTE: HUD objects will be full bright. Uncomment if you want "some" environment lighting effecting these HUD objects. diff --git a/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsF.glsl b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsF.glsl index a0699affbf..3b4d358cfa 100644 --- a/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsF.glsl +++ b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsF.glsl @@ -1,30 +1,37 @@ -/** +/** * @file class1\windlight\atmosphericVarsF.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 * $/LicenseInfo$ */ - -vec3 getPositionEye() -{ - return vec3(0,0,0); -} +VARYING vec3 vary_AdditiveColor; +VARYING vec3 vary_AtmosAttenuation; + +vec3 getAmblitColor() { return vec3(0, 0, 0); } + +vec3 getAdditiveColor() { return vary_AdditiveColor; } + +vec3 getAtmosAttenuation() { return vec3(vary_AtmosAttenuation); } + +vec3 getSunlitColor() { return vec3(0, 0, 0); } + +vec3 getPositionEye() { return vec3(0, 0, 0); } diff --git a/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsV.glsl b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsV.glsl index bd1d150fc8..1fea2c3628 100644 --- a/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsV.glsl +++ b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsV.glsl @@ -1,36 +1,56 @@ -/** +/** * @file class1\windlight\atmosphericVarsV.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 * $/LicenseInfo$ */ - +VARYING vec3 vary_AdditiveColor; +VARYING vec3 vary_AtmosAttenuation; -vec3 getPositionEye() +vec3 additive_color; +vec3 atmos_attenuation; +vec3 sunlit_color; +vec3 amblit_color; +vec3 position_eye; + +vec3 getSunlitColor() { return sunlit_color; } +void setSunlitColor(vec3 v) { sunlit_color = v; } + +vec3 getAdditiveColor() { return additive_color; } +void setAdditiveColor(vec3 v) { - return vec3(0,0,0); + additive_color = v; + vary_AdditiveColor = v; } -void setPositionEye(vec3 v) +vec3 getAmblitColor() { return amblit_color; } +void setAmblitColor(vec3 v) { amblit_color = v; } + +vec3 getAtmosAttenuation() { return atmos_attenuation; } +void setAtmosAttenuation(vec3 v) { - + atmos_attenuation = v; + vary_AtmosAttenuation = v; } + +vec3 getPositionEye() { return position_eye; } +void setPositionEye(vec3 v) { position_eye = v; } diff --git a/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsWaterF.glsl b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsWaterF.glsl index 5dc086ab1e..f83434b7ec 100644 --- a/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsWaterF.glsl +++ b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsWaterF.glsl @@ -1,33 +1,38 @@ -/** +/** * @file class1\windlight\atmosphericVarsWaterF.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 * $/LicenseInfo$ */ - VARYING vec3 vary_PositionEye; +VARYING vec3 vary_AdditiveColor; +VARYING vec3 vary_AtmosAttenuation; + +vec3 getSunlitColor() { return vec3(0, 0, 0); } + +vec3 getAmblitColor() { return vec3(0, 0, 0); } + +vec3 getAdditiveColor() { return vary_AdditiveColor; } -vec3 getPositionEye() -{ - return vary_PositionEye; -} +vec3 getAtmosAttenuation() { return vary_AtmosAttenuation; } +vec3 getPositionEye() { return vary_PositionEye; } diff --git a/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsWaterV.glsl b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsWaterV.glsl index e59eca265a..65d1176777 100644 --- a/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsWaterV.glsl +++ b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsVarsWaterV.glsl @@ -1,37 +1,51 @@ -/** +/** * @file class1\windlight\atmosphericVarsWaterV.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 * $/LicenseInfo$ */ - - + VARYING vec3 vary_PositionEye; +VARYING vec3 vary_AdditiveColor; +VARYING vec3 vary_AtmosAttenuation; -vec3 getPositionEye() -{ - return vary_PositionEye; -} +vec3 atmos_attenuation; +vec3 sunlit_color; +vec3 amblit_color; + +vec3 getSunlitColor() { return sunlit_color; } +void setSunlitColor(vec3 v) { sunlit_color = v; } + +vec3 getAmblitColor() { return amblit_color; } +void setAmblitColor(vec3 v) { amblit_color = v; } -void setPositionEye(vec3 v) +vec3 getAdditiveColor() { return vary_AdditiveColor; } +void setAdditiveColor(vec3 v) { vary_AdditiveColor = v; } + +vec3 getAtmosAttenuation() { return atmos_attenuation; } +void setAtmosAttenuation(vec3 v) { - vary_PositionEye = v; + atmos_attenuation = v; + vary_AtmosAttenuation = v; } + +vec3 getPositionEye() { return vary_PositionEye; } +void setPositionEye(vec3 v) { vary_PositionEye = v; } diff --git a/indra/newview/app_settings/shaders/class1/windlight/sunDiscF.glsl b/indra/newview/app_settings/shaders/class1/windlight/sunDiscF.glsl index b9ae7a0226..5a41dc644a 100644 --- a/indra/newview/app_settings/shaders/class1/windlight/sunDiscF.glsl +++ b/indra/newview/app_settings/shaders/class1/windlight/sunDiscF.glsl @@ -51,7 +51,6 @@ void main() // SL-9806 stars poke through // c.a *= sun_fade; - c.rgb = pow(c.rgb, vec3(0.7f)); c.rgb = fullbrightAtmosTransport(c.rgb); c.rgb = fullbrightScaleSoftClip(c.rgb); frag_color = c; diff --git a/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl index 5d7a28c359..1b7a1cc6ec 100644 --- a/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl +++ b/indra/newview/app_settings/shaders/class2/deferred/multiSpotLightF.glsl @@ -191,10 +191,6 @@ void main() float da = dot(norm, lv); vec3 diff_tex = texture2DRect(diffuseRect, frag.xy).rgb; - // SL-12005 Projector light pops as we get closer, more objectionable than being in wrong color space. - // We can't switch to linear here unless we do it everywhere* - // *gbuffer IS sRGB, convert to linear since this shader outputs linear - diff_tex.rgb = srgb_to_linear(diff_tex.rgb); vec4 spec = texture2DRect(specularRect, frag.xy); diff --git a/indra/newview/app_settings/shaders/class2/deferred/skyF.glsl b/indra/newview/app_settings/shaders/class2/deferred/skyF.glsl index 1485c515a4..6841a8194f 100644 --- a/indra/newview/app_settings/shaders/class2/deferred/skyF.glsl +++ b/indra/newview/app_settings/shaders/class2/deferred/skyF.glsl @@ -73,7 +73,21 @@ uniform float ice_level; vec3 rainbow(float d) { - d = clamp(d, -1.0, 0.0); + // 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; } diff --git a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl index f4db53e0b7..7700d16007 100644 --- a/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl +++ b/indra/newview/app_settings/shaders/class2/deferred/softenLightF.glsl @@ -87,8 +87,9 @@ void main() float light_gamma = 1.0 / 1.3; da = pow(da, light_gamma); - vec4 diffuse = texture2DRect(diffuseRect, tc); - vec4 spec = texture2DRect(specularRect, vary_fragcoord.xy); + vec4 diffuse = texture2DRect(diffuseRect, tc); + diffuse.rgb = linear_to_srgb(diffuse.rgb); // SL-14025 + vec4 spec = texture2DRect(specularRect, vary_fragcoord.xy); vec2 scol_ambocc = texture2DRect(lightMap, vary_fragcoord.xy).rg; scol_ambocc = pow(scol_ambocc, vec2(light_gamma)); diff --git a/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl b/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl index 5ab0b5c5b4..774f537821 100644 --- a/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl +++ b/indra/newview/app_settings/shaders/class2/deferred/spotLightF.glsl @@ -189,7 +189,7 @@ void main() lv = normalize(lv); float da = dot(norm, lv); - vec3 diff_tex = srgb_to_linear(texture2DRect(diffuseRect, frag.xy).rgb); + vec3 diff_tex = texture2DRect(diffuseRect, frag.xy).rgb; vec4 spec = texture2DRect(specularRect, frag.xy); vec3 dlit = vec3(0, 0, 0); diff --git a/indra/newview/app_settings/shaders/class2/windlight/atmosphericsVarsF.glsl b/indra/newview/app_settings/shaders/class2/windlight/atmosphericsVarsF.glsl index d758f85d71..07733bda18 100644 --- a/indra/newview/app_settings/shaders/class2/windlight/atmosphericsVarsF.glsl +++ b/indra/newview/app_settings/shaders/class2/windlight/atmosphericsVarsF.glsl @@ -1,5 +1,5 @@ /** - * @file class2\wl\atmosphericVars.glsl + * @file class2\wl\atmosphericVarsF.glsl * * $LicenseInfo:firstyear=2007&license=viewerlgpl$ * Second Life Viewer Source Code diff --git a/indra/newview/app_settings/shaders/class2/windlight/cloudsF.glsl b/indra/newview/app_settings/shaders/class2/windlight/cloudsF.glsl index 75bf8730df..fa928d993e 100644 --- a/indra/newview/app_settings/shaders/class2/windlight/cloudsF.glsl +++ b/indra/newview/app_settings/shaders/class2/windlight/cloudsF.glsl @@ -26,9 +26,9 @@ /*[EXTRA_CODE_HERE]*/ #ifdef DEFINE_GL_FRAGCOLOR -out vec4 frag_data[3]; +out vec4 frag_color; #else -#define frag_data gl_FragData +#define frag_color gl_FragColor #endif ///////////////////////////////////////////////////////////////////////// @@ -126,8 +126,6 @@ void main() color.rgb = scaleSoftClip(color.rgb); /// Gamma correct for WL (soft clip effect). - frag_data[0] = vec4(color.rgb, alpha1); - frag_data[1] = vec4(0.0,0.0,0.0,0.0); - frag_data[2] = vec4(0,0,0,1); + frag_color = vec4(color.rgb, alpha1); } diff --git a/indra/newview/app_settings/shaders/class2/windlight/cloudsV.glsl b/indra/newview/app_settings/shaders/class2/windlight/cloudsV.glsl index 1f881eb44b..97ffa9feef 100644 --- a/indra/newview/app_settings/shaders/class2/windlight/cloudsV.glsl +++ b/indra/newview/app_settings/shaders/class2/windlight/cloudsV.glsl @@ -1,24 +1,24 @@ -/** +/** * @file class2\wl\cloudsV.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 * $/LicenseInfo$ */ @@ -33,26 +33,26 @@ ATTRIBUTE vec2 texcoord0; /////////////////////////////////////////////////////////////////////////////// // Output parameters -VARYING vec4 vary_CloudColorSun; -VARYING vec4 vary_CloudColorAmbient; +VARYING vec4 vary_CloudColorSun; +VARYING vec4 vary_CloudColorAmbient; VARYING float vary_CloudDensity; -VARYING vec2 vary_texcoord0; -VARYING vec2 vary_texcoord1; -VARYING vec2 vary_texcoord2; -VARYING vec2 vary_texcoord3; +VARYING vec2 vary_texcoord0; +VARYING vec2 vary_texcoord1; +VARYING vec2 vary_texcoord2; +VARYING vec2 vary_texcoord3; VARYING float altitude_blend_factor; // 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 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; @@ -60,7 +60,7 @@ uniform float cloud_shadow; uniform float density_multiplier; uniform float max_y; -uniform vec4 glow; +uniform vec4 glow; uniform float sun_moon_glow_factor; uniform vec4 cloud_color; @@ -75,8 +75,8 @@ uniform float cloud_scale; // indra\newview\llsettingsvo.cpp void main() { - // World / view / projection - gl_Position = modelview_projection_matrix * vec4(position.xyz, 1.0); + // World / view / projection + gl_Position = modelview_projection_matrix * vec4(position.xyz, 1.0); // Texture coords // SL-13084 EEP added support for custom cloud textures -- flip them horizontally to match the preview of Clouds > Cloud Scroll @@ -93,7 +93,7 @@ void main() vary_texcoord2 = vary_texcoord0 * 16.; vary_texcoord3 = vary_texcoord1 * 16.; - // Get relative position + // Get relative position vec3 rel_pos = position.xyz - camPosLocal.xyz + vec3(0, 50, 0); // fade clouds beyond a certain point so the bottom of the sky dome doesn't look silly at high altitude @@ -101,27 +101,27 @@ void main() // 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); - } + } - // Can normalize then + // Can normalize then vec3 rel_pos_norm = normalize(rel_pos); float rel_pos_len = length(rel_pos); - // Initialize temp variables - vec4 sunlight = sunlight_color; - vec4 light_atten; + // Initialize temp variables + 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 + // 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); - // Calculate relative weights + // 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; @@ -130,63 +130,64 @@ void main() float off_axis = 1.0 / max(1e-6, max(0., rel_pos_norm.y) + lightnorm.y); sunlight *= exp(-light_atten * off_axis); - // Distance + // 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. + // compiler gets confused. combined_haze = exp(-combined_haze * density_dist); - // Compute haze glow + // Compute haze glow float haze_glow = 1.0 - dot(rel_pos_norm, lightnorm.xyz); // 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) + // 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") + // 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 + // glow.z should be negative, so we're doing a sort of (1 / "angle") function haze_glow *= sun_moon_glow_factor; - // Add "minimum anti-solar illumination" + // 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); - // Increase ambient when there are more clouds - vec4 tmpAmbient = ambient_color; - tmpAmbient += (1. - tmpAmbient) * cloud_shadow * 0.5; + // Increase ambient when there are more clouds + vec4 tmpAmbient = ambient_color; + tmpAmbient += (1. - tmpAmbient) * cloud_shadow * 0.5; - // Dim sunlight by cloud shadow percentage - sunlight *= (1. - cloud_shadow); + // Dim sunlight by cloud shadow percentage + sunlight *= (1. - cloud_shadow); - // Haze color below cloud + // Haze color below cloud vec4 additiveColorBelowCloud = (blue_horizon * blue_weight * (sunlight + tmpAmbient) + (haze_horizon * haze_weight) * (sunlight * haze_glow + tmpAmbient)); - // CLOUDS + // CLOUDS + sunlight = sunlight_color; // SL-14707 reset color -- Clouds are unusually dim in EEP off_axis = 1.0 / max(1e-6, lightnorm.y * 2.); sunlight *= exp(-light_atten * off_axis); - // Cloud color out + // Cloud color out vary_CloudColorSun = (sunlight * haze_glow) * cloud_color; - vary_CloudColorAmbient = tmpAmbient * cloud_color; - - // Attenuate cloud color by atmosphere + vary_CloudColorAmbient = tmpAmbient * cloud_color; + + // Attenuate cloud color by atmosphere combined_haze = sqrt(combined_haze); // less atmos opacity (more transparency) below clouds vary_CloudColorSun *= combined_haze; vary_CloudColorAmbient *= combined_haze; vec4 oHazeColorBelowCloud = additiveColorBelowCloud * (1. - combined_haze); - // Make a nice cloud density based on the cloud_shadow value that was passed in. - vary_CloudDensity = 2. * (cloud_shadow - 0.25); + // Make a nice cloud density based on the cloud_shadow value that was passed in. + vary_CloudDensity = 2. * (cloud_shadow - 0.25); - // Combine these to minimize register use - vary_CloudColorAmbient += oHazeColorBelowCloud; + // Combine these to minimize register use + vary_CloudColorAmbient += oHazeColorBelowCloud; - // needs this to compile on mac - // vary_AtmosAttenuation = vec3(0.0,0.0,0.0); + // needs this to compile on mac + //vary_AtmosAttenuation = vec3(0.0,0.0,0.0); - // END CLOUDS + // END CLOUDS } diff --git a/indra/newview/app_settings/shaders/class3/deferred/lightUtil.glsl b/indra/newview/app_settings/shaders/class3/deferred/lightUtil.glsl deleted file mode 100644 index 8bb3f07fc6..0000000000 --- a/indra/newview/app_settings/shaders/class3/deferred/lightUtil.glsl +++ /dev/null @@ -1,117 +0,0 @@ -/** - * @file lightInfo.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 - * $/LicenseInfo$ - */ - -struct DirectionalLightInfo -{ - vec4 pos; - float depth; - vec4 normal; - vec3 normalizedLightDirection; - vec3 normalizedToLight; - float lightIntensity; - vec3 lightDiffuseColor; - float specExponent; - float shadow; -}; - -struct SpotLightInfo -{ - vec4 pos; - float depth; - vec4 normal; - vec3 normalizedLightDirection; - vec3 normalizedToLight; - float lightIntensity; - float attenuation; - float distanceToLight; - vec3 lightDiffuseColor; - float innerHalfAngleCos; - float outerHalfAngleCos; - float spotExponent; - float specExponent; - float shadow; -}; - -struct PointLightInfo -{ - vec4 pos; - float depth; - vec4 normal; - vec3 normalizedToLight; - float lightIntensity; - float attenuation; - float distanceToLight; - vec3 lightDiffuseColor; - float lightRadius; - float specExponent; - vec3 worldspaceLightDirection; - float shadow; -}; - -float attenuate(float attenuationSelection, float distanceToLight) -{ -// LLRENDER_REVIEW -// sh/could eventually consume attenuation func defined in texture - return (attenuationSelection == 0.0f) ? 1.0f : // none - (attenuationSelection < 1.0f) ? (1.0f / distanceToLight) : // linear atten - (attenuationSelection < 2.0f) ? (1.0f / (distanceToLight*distanceToLight)) // quadratic atten - : (1.0f / (distanceToLight*distanceToLight*distanceToLight)); // cubic atten -} - - -vec3 lightDirectional(struct DirectionalLightInfo dli) -{ - float lightIntensity = dli.lightIntensity; - lightIntensity *= dot(dli.normal.xyz, dli.normalizedLightDirection); - //lightIntensity *= directionalShadowSample(vec4(dli.pos.xyz, 1.0f), dli.depth, dli.directionalShadowMap, dli.directionalShadowMatrix); - return lightIntensity * dli.lightDiffuseColor; -} - - -vec3 lightSpot(struct SpotLightInfo sli) -{ - float penumbraRange = (sli.outerHalfAngleCos - sli.innerHalfAngleCos); - float coneAngleCos = max(dot(sli.normalizedLightDirection, sli.normalizedToLight), 0.0); - float coneAttenFactor = (coneAngleCos <= sli.outerHalfAngleCos) ? 1.0f : pow(smoothstep(1,0, sli.outerHalfAngleCos / penumbraRange), sli.spotExponent); - float distanceAttenuation = attenuate(sli.attenuation, sli.distanceToLight); - float lightIntensity = sli.lightIntensity; - lightIntensity *= distanceAttenuation; - lightIntensity *= max(dot(sli.normal.xyz, sli.normalizedLightDirection), 0.0); - lightIntensity *= coneAttenFactor; - lightIntensity *= sli.shadow; - return lightIntensity * sli.lightDiffuseColor; -} - -vec3 lightPoint(struct PointLightInfo pli) -{ - float padRadius = pli.lightRadius * 0.1; // distance for which to perform smoothed dropoff past light radius - float distanceAttenuation = attenuate(pli.attenuation, pli.distanceToLight); - float lightIntensity = pli.lightIntensity; - lightIntensity*= distanceAttenuation; - lightIntensity *= clamp((padRadius - pli.distanceToLight + pli.lightRadius) / padRadius, 0.0, 1.0); - lightIntensity *= pli.shadow; - lightIntensity *= max(dot(pli.normal.xyz, pli.normalizedToLight), 0.0); - return lightIntensity * pli.lightDiffuseColor; -} diff --git a/indra/newview/app_settings/shaders/class3/deferred/skyF.glsl b/indra/newview/app_settings/shaders/class3/deferred/skyF.glsl index 6de01cb667..a0b082ed7c 100644 --- a/indra/newview/app_settings/shaders/class3/deferred/skyF.glsl +++ b/indra/newview/app_settings/shaders/class3/deferred/skyF.glsl @@ -56,8 +56,23 @@ vec3 GetSkyLuminanceToPoint(vec3 camPos, vec3 pos, float shadow_length, vec3 dir vec3 ColorFromRadiance(vec3 radiance); vec3 rainbow(float d) { - float rad = (droplet_radius - 5.0f) / 1024.0f; - return pow(texture2D(rainbow_map, vec2(rad, d)).rgb, vec3(1.8)) * moisture_level; + // 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) |