GameDev/godot-nishita-sky-with-volumetric-clouds
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MMqd 2023-06-30 18:12:25 -04:00
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4
README.md
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@ -79,6 +79,6 @@ The variables prefixed with `precomputed_` are set by the `NishitaSky.gd` script
* Position sun, stars, and moon using a real world date/time * Position sun, stars, and moon using a real world date/time
## Images ## Images
* Moon albedo image was rendered from [NASA](https://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=4720) * Moon albedo was rendered from [NASA](https://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=4720)
* Night sky HDRI was underexposed and compressed to webp from [NASA](https://svs.gsfc.nasa.gov/4851#media_group_5169) * Night sky HDRI was underexposed and compressed to webp from [NASA](https://svs.gsfc.nasa.gov/4851#media_group_5169)
* Earth image was color corrected and converted to webp from [NASA](https://visibleearth.nasa.gov/images/74142/september-blue-marble-next-generation/74159l) * Earth image was color corrected and compressed to webp from [NASA](https://visibleearth.nasa.gov/images/74142/september-blue-marble-next-generation/74159l)

6
nishita_sky.gdshader
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@ -294,8 +294,8 @@ vec4[4] sample_sky(vec3 dir, vec3 pos, float visiblity) {
/* Begin Cloud Parameters */ /* Begin Cloud Parameters */
// Cloud Raymarching based on: A. Schneider. “The earthRadiusal-Time Volumetric // Cloud Raymarching based on: A. Schneider. "The earthRadiusal-Time Volumetric
// Cloudscapes Of Horizon: Zero Dawn”. ACM SIGGRAPH. Los Angeles, CA: ACM // Cloudscapes Of Horizon: Zero Dawn". ACM SIGGRAPH. Los Angeles, CA: ACM
// SIGGRAPH, 2015. Web. 26 Aug. 2015. // SIGGRAPH, 2015. Web. 26 Aug. 2015.
uniform sampler3D worlnoise : filter_linear_mipmap, repeat_enable; uniform sampler3D worlnoise : filter_linear_mipmap, repeat_enable;
@ -488,7 +488,7 @@ void sky() {
float horizon_dist = dir.y + horizon; float horizon_dist = dir.y + horizon;
if (clouds) { if (clouds) {
/* start Clouds */ /* Begin Clouds */
// if (POSITION.y < cloud_top){ // if (POSITION.y < cloud_top){
if ((AT_CUBEMAP_PASS && AT_QUARTER_RES_PASS) || if ((AT_CUBEMAP_PASS && AT_QUARTER_RES_PASS) ||
(!AT_CUBEMAP_PASS && AT_HALF_RES_PASS)) { (!AT_CUBEMAP_PASS && AT_HALF_RES_PASS)) {