diff options
Diffstat (limited to 'indra/newview/app_settings/shaders/class3/windlight')
5 files changed, 281 insertions, 0 deletions
diff --git a/indra/newview/app_settings/shaders/class3/windlight/advancedAtmoF.glsl b/indra/newview/app_settings/shaders/class3/windlight/advancedAtmoF.glsl new file mode 100644 index 0000000000..c6ea3ec9d4 --- /dev/null +++ b/indra/newview/app_settings/shaders/class3/windlight/advancedAtmoF.glsl @@ -0,0 +1,73 @@ +/** + * @file class3\wl\advancedAtmoF.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 + * $/LicenseInfo$ + */ + +#ifdef DEFINE_GL_FRAGCOLOR +out vec4 frag_color; +#else +#define frag_color gl_FragColor +#endif + +in vec3 view_dir; + +uniform vec3 cameraPosLocal; +uniform vec3 sun_dir; +uniform float sun_size; + +uniform sampler2D transmittance_texture; +uniform sampler3D scattering_texture; +uniform sampler3D mie_scattering_texture; +uniform sampler2D irradiance_texture; + +vec3 GetSolarLuminance(); +vec3 GetSkyLuminance(vec3 camPos, vec3 view_dir, float shadow_length, vec3 sun_dir, out vec3 transmittance); +vec3 GetSkyLuminanceToPoint(vec3 camPos, vec3 pos, float shadow_length, vec3 sun_dir, out vec3 transmittance); +vec3 GetSunAndSkyIlluminance(vec3 pos, vec3 norm, vec3 sun_dir, out vec3 sky_irradiance); + +void main() +{ + vec3 view_direction = normalize(view_dir); + + vec3 camPos = cameraPosLocal; + vec3 transmittance; + vec3 sky_illum; + vec3 radiance = GetSkyLuminance(camPos, view_direction, 0.0f, sun_dir, transmittance); + vec3 radiance2 = GetSunAndSkyIlluminance(camPos, view_direction, sun_dir, sky_illum); + + //radiance *= transmittance; + + // If the view ray intersects the Sun, add the Sun radiance. + if (dot(view_direction, sun_dir) >= sun_size) + { + radiance = radiance + transmittance * GetSolarLuminance(); + } + + //vec3 color = vec3(1.0) - exp(-radiance); + //color = pow(color, vec3(1.0 / 2.2)); + + frag_color.rgb = radiance; + + frag_color.a = 1.0; +} + diff --git a/indra/newview/app_settings/shaders/class3/windlight/advancedAtmoV.glsl b/indra/newview/app_settings/shaders/class3/windlight/advancedAtmoV.glsl new file mode 100644 index 0000000000..65bb00b1f6 --- /dev/null +++ b/indra/newview/app_settings/shaders/class3/windlight/advancedAtmoV.glsl @@ -0,0 +1,43 @@ +/** + * @file class3\wl\advancedAtmoV.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; + +// Inputs +uniform vec3 camPosLocal; + +out vec3 view_dir; + +void main() +{ + // World / view / projection + gl_Position = modelview_projection_matrix * vec4(position.xyz, 1.0); + + // this will be normalized in the frag shader... + view_dir = position.xyz - camPosLocal.xyz; +} + diff --git a/indra/newview/app_settings/shaders/class3/windlight/atmosphericsF.glsl b/indra/newview/app_settings/shaders/class3/windlight/atmosphericsF.glsl new file mode 100644 index 0000000000..2b70ba76dc --- /dev/null +++ b/indra/newview/app_settings/shaders/class3/windlight/atmosphericsF.glsl @@ -0,0 +1,46 @@ +/** + * @file class3\wl\atmosphericsF.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 getAdditiveColor(); +vec3 getAtmosAttenuation(); +vec3 scaleSoftClipFrag(vec3 light); + +uniform int no_atmo; + +vec3 atmosFragLighting(vec3 light, vec3 additive, vec3 atten) +{ + if (no_atmo == 1) + { + return light; + } + light *= atten.r; + light += additive; + return light * 2.0; +} + +vec3 atmosLighting(vec3 light) +{ + return atmosFragLighting(light, getAdditiveColor(), getAtmosAttenuation()); +} diff --git a/indra/newview/app_settings/shaders/class3/windlight/atmosphericsV.glsl b/indra/newview/app_settings/shaders/class3/windlight/atmosphericsV.glsl new file mode 100644 index 0000000000..b76192d73f --- /dev/null +++ b/indra/newview/app_settings/shaders/class3/windlight/atmosphericsV.glsl @@ -0,0 +1,51 @@ +/** + * @file class3\wl\atmosphericsV.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 + * $/LicenseInfo$ + */ + +// VARYING param funcs +void setSunlitColor(vec3 v); +void setAmblitColor(vec3 v); +void setAdditiveColor(vec3 v); +void setAtmosAttenuation(vec3 v); +void setPositionEye(vec3 v); + +vec3 getAdditiveColor(); + +void calcAtmosphericVars(vec3 inPositionEye, vec3 light_dir, float ambFactor, out vec3 sunlit, out vec3 amblit, out vec3 additive, out vec3 atten, bool use_ao); + +void calcAtmospherics(vec3 inPositionEye) { + + vec3 P = inPositionEye; + setPositionEye(P); + vec3 tmpsunlit = vec3(1); + vec3 tmpamblit = vec3(1); + vec3 tmpaddlit = vec3(1); + vec3 tmpattenlit = vec3(1); + calcAtmosphericVars(inPositionEye, vec3(0), 1, tmpsunlit, tmpamblit, tmpaddlit, tmpattenlit, true); + setSunlitColor(tmpsunlit); + setAmblitColor(tmpamblit); + setAdditiveColor(tmpaddlit); + setAtmosAttenuation(tmpattenlit); +} + diff --git a/indra/newview/app_settings/shaders/class3/windlight/transportF.glsl b/indra/newview/app_settings/shaders/class3/windlight/transportF.glsl new file mode 100644 index 0000000000..545a32a227 --- /dev/null +++ b/indra/newview/app_settings/shaders/class3/windlight/transportF.glsl @@ -0,0 +1,68 @@ +/** + * @file class3\wl\transportF.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 + * $/LicenseInfo$ + */ + +////////////////////////////////////////////////////////// +// The fragment shader for the terrain atmospherics +////////////////////////////////////////////////////////// + +vec3 getAdditiveColor(); +vec3 getAtmosAttenuation(); + +uniform int no_atmo; + +vec3 atmosTransportFrag(vec3 light, vec3 additive, vec3 atten) +{ + if (no_atmo == 1) + { + return light; + } + // fullbright responds minimally to atmos scatter effects + light *= min(15.0 * atten.r, 1.0); + light += (0.1 * additive); + return light * 2.0; +} + +vec3 atmosTransport(vec3 light) +{ + return atmosTransportFrag(light, getAdditiveColor(), getAtmosAttenuation()); +} + +vec3 fullbrightAtmosTransportFrag(vec3 light, vec3 additive, vec3 atten) +{ + float brightness = dot(light.rgb, vec3(0.33333)); + return vec3(1,0,1); + //return atmosTransportFrag(light * 0.5, additive * (brightness * 0.5 + 0.5), atten); +} + +vec3 fullbrightAtmosTransport(vec3 light) +{ + return atmosTransportFrag(light, getAdditiveColor(), getAtmosAttenuation()); +} + +vec3 fullbrightShinyAtmosTransport(vec3 light) +{ + float brightness = dot(light.rgb, vec3(0.33333)); + return atmosTransportFrag(light * 0.5, getAdditiveColor() * (brightness * brightness), getAtmosAttenuation()); +} |