diff options
Diffstat (limited to 'indra/newview/app_settings/shaders/class2/windlight/skyV.glsl')
| -rw-r--r-- | indra/newview/app_settings/shaders/class2/windlight/skyV.glsl | 149 |
1 files changed, 0 insertions, 149 deletions
diff --git a/indra/newview/app_settings/shaders/class2/windlight/skyV.glsl b/indra/newview/app_settings/shaders/class2/windlight/skyV.glsl deleted file mode 100644 index a0a33b8642..0000000000 --- a/indra/newview/app_settings/shaders/class2/windlight/skyV.glsl +++ /dev/null @@ -1,149 +0,0 @@ -/** - * @file class2\wl\skyV.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 -/////////////////////////////////////////////////////////////////////////////// - -// Output parameters -VARYING vec4 vary_HazeColor; - -// 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; - -void main() -{ - // World / view / projection - vec4 pos = modelview_projection_matrix * vec4(position.xyz, 1.0); - - gl_Position = pos; - - // Get relative position - vec3 rel_pos = position.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); - } - - // Can normalize then - 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; - 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); - - // 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 = 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) - 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 : (haze_glow + 0.25); - - 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; - - // 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)); - - // 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)); - - // Haze color above cloud - vary_HazeColor = color; -} |