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 | 60 |
1 files changed, 38 insertions, 22 deletions
diff --git a/indra/newview/app_settings/shaders/class2/windlight/skyV.glsl b/indra/newview/app_settings/shaders/class2/windlight/skyV.glsl index 1ea00f723a..3788ddaf2d 100644 --- a/indra/newview/app_settings/shaders/class2/windlight/skyV.glsl +++ b/indra/newview/app_settings/shaders/class2/windlight/skyV.glsl @@ -2,17 +2,37 @@ * @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 /////////////////////////////////////////////////////////////////////////////// // Output parameters -varying vec4 vary_HazeColor; +VARYING vec4 vary_HazeColor; // Inputs uniform vec3 camPosLocal; @@ -22,34 +42,31 @@ uniform vec4 sunlight_color; uniform vec4 ambient; uniform vec4 blue_horizon; uniform vec4 blue_density; -uniform vec4 haze_horizon; -uniform vec4 haze_density; +uniform float haze_horizon; +uniform float haze_density; -uniform vec4 cloud_shadow; -uniform vec4 density_multiplier; -uniform vec4 max_y; +uniform float cloud_shadow; +uniform float density_multiplier; +uniform float max_y; uniform vec4 glow; uniform vec4 cloud_color; -uniform vec4 cloud_scale; - void main() { // World / view / projection - gl_Position = ftransform(); - gl_TexCoord[0] = gl_MultiTexCoord0; + gl_Position = modelview_projection_matrix * vec4(position.xyz, 1.0); // Get relative position - vec3 P = gl_Vertex.xyz - camPosLocal.xyz + vec3(0,50,0); - //vec3 P = gl_Vertex.xyz + vec3(0,50,0); + vec3 P = position.xyz - camPosLocal.xyz + vec3(0,50,0); + //vec3 P = position.xyz + vec3(0,50,0); // Set altitude if (P.y > 0.) { - P *= (max_y.x / P.y); + P *= (max_y / P.y); } else { @@ -68,15 +85,14 @@ void main() 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 - light_atten = (blue_density * 1.0 + haze_density.x * 0.25) * (density_multiplier.x * max_y.x); + light_atten = (blue_density + vec4(haze_density * 0.25)) * (density_multiplier * max_y); // Calculate relative weights - temp1 = blue_density + haze_density.x; + temp1 = blue_density + haze_density; blue_weight = blue_density / temp1; - haze_weight = haze_density.x / temp1; + haze_weight = haze_density / temp1; // Compute sunlight from P & lightnorm (for long rays like sky) temp2.y = max(0., max(0., Pn.y) * 1.0 + lightnorm.y ); @@ -84,7 +100,7 @@ void main() sunlight *= exp( - light_atten * temp2.y); // Distance - temp2.z = Plen * density_multiplier.x; + temp2.z = Plen * density_multiplier; // Transparency (-> temp1) // ATI Bugfix -- can't store temp1*temp2.z in a variable because the ati @@ -109,20 +125,20 @@ void main() // Haze color above cloud vary_HazeColor = ( blue_horizon * blue_weight * (sunlight + ambient) - + (haze_horizon.r * haze_weight) * (sunlight * temp2.x + ambient) + + (haze_horizon * haze_weight) * (sunlight * temp2.x + ambient) ); // Increase ambient when there are more clouds vec4 tmpAmbient = ambient; - tmpAmbient += (1. - tmpAmbient) * cloud_shadow.x * 0.5; + tmpAmbient += (1. - tmpAmbient) * cloud_shadow * 0.5; // Dim sunlight by cloud shadow percentage - sunlight *= (1. - cloud_shadow.x); + sunlight *= (1. - cloud_shadow); // Haze color below cloud vec4 additiveColorBelowCloud = ( blue_horizon * blue_weight * (sunlight + tmpAmbient) - + (haze_horizon.r * haze_weight) * (sunlight * temp2.x + tmpAmbient) + + (haze_horizon * haze_weight) * (sunlight * temp2.x + tmpAmbient) ); // Final atmosphere additive |