diff options
Diffstat (limited to 'indra/newview/app_settings/shaders/class1/windlight')
4 files changed, 16 insertions, 292 deletions
diff --git a/indra/newview/app_settings/shaders/class1/windlight/atmosphericsFuncs.glsl b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsFuncs.glsl index ea2690ba09..12f500e224 100644 --- a/indra/newview/app_settings/shaders/class1/windlight/atmosphericsFuncs.glsl +++ b/indra/newview/app_settings/shaders/class1/windlight/atmosphericsFuncs.glsl @@ -22,113 +22,26 @@ * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ -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 scene_light_strength; -uniform mat3 ssao_effect_mat; -uniform int no_atmo; -uniform float sun_moon_glow_factor; + +// debug stub float getAmbientClamp() { return 1.0f; } +// Returns colors in sRGB void calcAtmosphericVars(vec3 inPositionEye, vec3 light_dir, float ambFactor, out vec3 sunlit, out vec3 amblit, out vec3 additive, out vec3 atten, bool use_ao) { - vec3 rel_pos = inPositionEye; - - //(TERRAIN) limit altitude - if (abs(rel_pos.y) > max_y) rel_pos *= (max_y / rel_pos.y); - - vec3 rel_pos_norm = normalize(rel_pos); - float rel_pos_len = length(rel_pos); - 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); - // I had thought blue_density and haze_density should have equal weighting, - // but attenuation due to haze_density tends to seem too strong - - vec4 combined_haze = blue_density + vec4(haze_density); - vec4 blue_weight = blue_density / combined_haze; - vec4 haze_weight = vec4(haze_density) / combined_haze; - - //(TERRAIN) compute sunlight from lightnorm y component. Factor is roughly cosecant(sun elevation) (for short rays like terrain) - float above_horizon_factor = 1.0 / max(1e-6, lightnorm.y); - sunlight *= exp(-light_atten * above_horizon_factor); // for sun [horizon..overhead] this maps to an exp curve [0..1] - - // main atmospheric scattering line integral - float density_dist = rel_pos_len * density_multiplier; - - // Transparency (-> combined_haze) - // ATI Bugfix -- can't store combined_haze*density_dist*distance_multiplier in a variable because the ati - // compiler gets confused. - combined_haze = exp(-combined_haze * density_dist * distance_multiplier); - - // final atmosphere attenuation factor - atten = combined_haze.rgb; - - // compute haze glow - float haze_glow = dot(rel_pos_norm, lightnorm.xyz); - - // dampen sun additive contrib when not facing it... - // SL-13539: This "if" clause causes an "additive" white artifact at roughly 77 degreees. - // if (length(light_dir) > 0.01) - haze_glow *= max(0.0f, dot(light_dir, rel_pos_norm)); - - 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" - haze_glow += .25; - - haze_glow *= sun_moon_glow_factor; - - vec4 amb_color = ambient_color; - - // increase ambient when there are more clouds - vec4 tmpAmbient = amb_color + (vec4(1.) - amb_color) * 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); - */ - if (use_ao) - { - tmpAmbient = vec4(mix(ssao_effect_mat * tmpAmbient.rgb, tmpAmbient.rgb, ambFactor), tmpAmbient.a); - } - - // Similar/Shared Algorithms: - // indra\llinventory\llsettingssky.cpp -- LLSettingsSky::calculateLightSettings() - // indra\newview\app_settings\shaders\class1\windlight\atmosphericsFuncs.glsl -- calcAtmosphericVars() - // haze color - vec3 cs = sunlight.rgb * (1. - cloud_shadow); - additive = (blue_horizon.rgb * blue_weight.rgb) * (cs + tmpAmbient.rgb) + (haze_horizon * haze_weight.rgb) * (cs * haze_glow + tmpAmbient.rgb); + amblit = vec3(0.2, 0, 0.2); + sunlit = vec3(1,0,1); + additive = vec3(0.5,0.5,0.5); + atten = vec3(1,0,1); +} - // brightness of surface both sunlight and ambient - sunlit = sunlight.rgb * 0.5; - amblit = tmpAmbient.rgb * .25; - additive *= vec3(1.0 - combined_haze); +void calcAtmosphericVarsLinear(vec3 inPositionEye, vec3 norm, vec3 light_dir, out vec3 sunlit, out vec3 amblit, out vec3 additive, + out vec3 atten) +{ + amblit = vec3(0.2, 0, 0.2); + sunlit = vec3(1,0,1); + additive = vec3(0.5,0.5,0.5); + atten = vec3(1,0,1); } diff --git a/indra/newview/app_settings/shaders/class1/windlight/cloudShadowF.glsl b/indra/newview/app_settings/shaders/class1/windlight/cloudShadowF.glsl deleted file mode 100644 index 82fad4db5a..0000000000 --- a/indra/newview/app_settings/shaders/class1/windlight/cloudShadowF.glsl +++ /dev/null @@ -1,127 +0,0 @@ -/** - * @file class1/windlight/cloudShadowF.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 - -uniform sampler2D diffuseMap; - -VARYING vec4 pos; -VARYING float target_pos_x; -VARYING float vary_CloudDensity; -VARYING vec2 vary_texcoord0; -VARYING vec2 vary_texcoord1; -VARYING vec2 vary_texcoord2; -VARYING vec2 vary_texcoord3; - -uniform sampler2D cloud_noise_texture; -uniform sampler2D cloud_noise_texture_next; -uniform float blend_factor; -uniform vec4 cloud_pos_density1; -uniform vec4 cloud_pos_density2; -uniform vec4 sunlight_color; -uniform vec4 cloud_color; -uniform float cloud_shadow; -uniform float cloud_scale; -uniform float cloud_variance; -uniform vec3 camPosLocal; -uniform vec3 sun_dir; -uniform float sun_size; -uniform float far_z; - -#if !defined(DEPTH_CLAMP) -VARYING vec4 post_pos; -#endif - -vec4 cloudNoise(vec2 uv) -{ - vec4 a = texture2D(cloud_noise_texture, uv); - vec4 b = texture2D(cloud_noise_texture_next, uv); - vec4 cloud_noise_sample = mix(a, b, blend_factor); - return normalize(cloud_noise_sample); -} - -void main() -{ - if (cloud_scale >= 0.0001) - { - // Set variables - vec2 uv1 = vary_texcoord0.xy; - vec2 uv2 = vary_texcoord1.xy; - vec2 uv3 = vary_texcoord2.xy; - float cloudDensity = 2.0 * (cloud_shadow - 0.25); - - vec2 uv4 = vary_texcoord3.xy; - - vec2 disturbance = vec2(cloudNoise(uv1 / 8.0f).x, cloudNoise((uv3 + uv1) / 16.0f).x) * cloud_variance * (1.0f - cloud_scale * 0.25f); - vec2 disturbance2 = vec2(cloudNoise((uv1 + uv3) / 4.0f).x, cloudNoise((uv4 + uv2) / 8.0f).x) * cloud_variance * (1.0f - cloud_scale * 0.25f); - - // Offset texture coords - uv1 += cloud_pos_density1.xy + (disturbance * 0.2); //large texture, visible density - uv2 += cloud_pos_density1.xy; //large texture, self shadow - uv3 += cloud_pos_density2.xy; //small texture, visible density - uv4 += cloud_pos_density2.xy; //small texture, self shadow - - float density_variance = min(1.0, (disturbance.x* 2.0 + disturbance.y* 2.0 + disturbance2.x + disturbance2.y) * 4.0); - - cloudDensity *= 1.0 - (density_variance * density_variance); - - // Compute alpha1, the main cloud opacity - float alpha1 = (cloudNoise(uv1).x - 0.5) + (cloudNoise(uv3).x - 0.5) * cloud_pos_density2.z; - alpha1 = min(max(alpha1 + cloudDensity, 0.) * 10 * cloud_pos_density1.z, 1.); - - // And smooth - alpha1 = 1. - alpha1 * alpha1; - alpha1 = 1. - alpha1 * alpha1; - - if (alpha1 < 0.001f) - { - discard; - } - - // Compute alpha2, for self shadowing effect - // (1 - alpha2) will later be used as percentage of incoming sunlight - float alpha2 = (cloudNoise(uv2).x - 0.5); - alpha2 = min(max(alpha2 + cloudDensity, 0.) * 2.5 * cloud_pos_density1.z, 1.); - - // And smooth - alpha2 = 1. - alpha2; - alpha2 = 1. - alpha2 * alpha2; - - frag_color = vec4(alpha1, alpha1, alpha1, 1); - } - else - { - frag_color = vec4(1); - } - -#if !defined(DEPTH_CLAMP) - gl_FragDepth = max(post_pos.z/post_pos.w*0.5+0.5, 0.0); -#endif - -} diff --git a/indra/newview/app_settings/shaders/class1/windlight/cloudShadowV.glsl b/indra/newview/app_settings/shaders/class1/windlight/cloudShadowV.glsl deleted file mode 100644 index 09b6004481..0000000000 --- a/indra/newview/app_settings/shaders/class1/windlight/cloudShadowV.glsl +++ /dev/null @@ -1,61 +0,0 @@ -/** - * @file class1\windlight\cloudShadowV.glsl - * - * $LicenseInfo:firstyear=2011&license=viewerlgpl$ - * Second Life Viewer Source Code - * Copyright (C) 2011, 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 texture_matrix0; -uniform mat4 modelview_projection_matrix; -uniform float shadow_target_width; - -ATTRIBUTE vec3 position; -ATTRIBUTE vec4 diffuse_color; -ATTRIBUTE vec2 texcoord0; - -#if !defined(DEPTH_CLAMP) -VARYING float pos_zd2; -#endif - -VARYING vec4 pos; -VARYING float target_pos_x; -VARYING vec2 vary_texcoord0; - -void passTextureIndex(); - -void main() -{ - //transform vertex - vec4 pre_pos = vec4(position.xyz, 1.0); - pos = modelview_projection_matrix * pre_pos; - target_pos_x = 0.5 * (shadow_target_width - 1.0) * pos.x; - -#if !defined(DEPTH_CLAMP) - pos_zd2 = pos.z * 0.5; - gl_Position = vec4(pos.x, pos.y, pos.w*0.5, pos.w); -#else - gl_Position = pos; -#endif - - passTextureIndex(); - - vary_texcoord0 = (texture_matrix0 * vec4(texcoord0,0,1)).xy; -} diff --git a/indra/newview/app_settings/shaders/class1/windlight/moonF.glsl b/indra/newview/app_settings/shaders/class1/windlight/moonF.glsl index 2425a2ad04..f03003f5e1 100644 --- a/indra/newview/app_settings/shaders/class1/windlight/moonF.glsl +++ b/indra/newview/app_settings/shaders/class1/windlight/moonF.glsl @@ -34,8 +34,7 @@ out vec4 frag_color; #endif uniform vec4 color; -uniform vec4 sunlight_color; -uniform vec4 moonlight_color; +uniform vec3 moonlight_color; uniform vec3 moon_dir; uniform float moon_brightness; uniform sampler2D diffuseMap; |