diff options
Diffstat (limited to 'indra/newview/app_settings/shaders/class3/deferred')
| -rw-r--r-- | indra/newview/app_settings/shaders/class3/deferred/cloudsF.glsl | 37 |
1 files changed, 21 insertions, 16 deletions
diff --git a/indra/newview/app_settings/shaders/class3/deferred/cloudsF.glsl b/indra/newview/app_settings/shaders/class3/deferred/cloudsF.glsl index d9fcc0a9ea..9f06319da3 100644 --- a/indra/newview/app_settings/shaders/class3/deferred/cloudsF.glsl +++ b/indra/newview/app_settings/shaders/class3/deferred/cloudsF.glsl @@ -36,10 +36,6 @@ out vec4 frag_color; 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; uniform sampler2D cloud_noise_texture; uniform sampler2D cloud_noise_texture_next; @@ -47,19 +43,25 @@ uniform float blend_factor; uniform vec4 cloud_pos_density1; uniform vec4 cloud_pos_density2; uniform vec4 gamma; +uniform float cloud_scale; +uniform float cloud_variance; -vec4 cloudNoise(vec2 uv) -{ - vec4 a = texture2D(cloud_noise_texture, uv); - vec4 b = texture2D(cloud_noise_texture_next, uv); - vec4 samp = mix(a, b, blend_factor); - return samp; -} - +VARYING vec2 vary_texcoord0; +VARYING vec2 vary_texcoord1; +VARYING vec2 vary_texcoord2; +VARYING vec2 vary_texcoord3; /// Soft clips the light with a gamma correction vec3 scaleSoftClip(vec3 light); +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 cloud_noise_sample; +} + void main() { // Set variables @@ -72,16 +74,19 @@ void main() vec2 uv3 = vary_texcoord2.xy; vec2 uv4 = vary_texcoord3.xy; + vec2 disturbance = vec2(cloudNoise(uv1 / 16.0f).x, cloudNoise((uv3 + uv1) / 16.0f).x) * cloud_variance * (1.0f - cloud_scale * 0.25f); + // Offset texture coords - uv1 += cloud_pos_density1.xy; //large texture, visible density + uv1 += cloud_pos_density1.xy + disturbance; //large texture, visible density uv2 += cloud_pos_density1.xy; //large texture, self shadow - uv3 += cloud_pos_density2.xy; //small texture, visible density + uv3 += cloud_pos_density2.xy + disturbance; //small texture, visible density uv4 += cloud_pos_density2.xy; //small texture, self shadow // 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.); + alpha1 = min(max(alpha1 + cloudDensity, 0.) * (10. + disturbance.y) * cloud_pos_density1.z, 1.); // And smooth alpha1 = 1. - alpha1 * alpha1; @@ -91,7 +96,7 @@ void main() // 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.); + alpha2 = min(max(alpha2 + cloudDensity, 0.) * (2.5 + disturbance.x) * cloud_pos_density1.z, 1.); // And smooth alpha2 = 1. - alpha2; |