1 files changed, 36 insertions, 0 deletions

diff --git a/presets/pov/world/1_Clear_Blue_Sky.py b/presets/pov/world/1_Clear_Blue_Sky.py
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+++ b/presets/pov/world/1_Clear_Blue_Sky.py
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+import bpy
+scene = bpy.context.scene
+
+scene.world.use_sky_blend = True
+#below multiplied by two for a better proportion Clear vs Overcast sky 
+#since Clear sky is 19807 lux vs 2000 for overcast (sun is min 32000 max 100000)
+#http://www.pssurvival.com/PS/Lighting/Typical_LUX_Intensities_for_Day_and_Night-2017.pdf
+#https://en.wikipedia.org/wiki/Daylight
+#https://www.engineeringtoolbox.com/light-level-rooms-d_708.html
+#https://www.cactus2000.de/fr/unit/masslux.shtml
+#https://blendergrid.com/news/cycles-physically-correct-brightness
+#researched result blue is      
+    #Hue: 0.6
+    #Saturation: 0.533
+    #Lightness: 0.7
+#put scattering scale at 0.0002 and scattering color rgb <0.2061, 0.3933, 1.0>
+#with very small value like round rgb 0.00002 0.00002 0.00008
+#Sky color at zenith, sun 90° elevation = hsl <0.6, 0.533, 0.698>
+#Ground color = rgb <0.996, 0.965, 0.855>  = hsl <0.128, 0.141, 0.996>
+#Ground Brighness = 0.996
+
+scene.world.horizon_color = (0.047, 0.034, 0.025) #24000 or 22000 lux roughly equals (sun+sky)/5
+scene.world.zenith_color = (0.006, 0.013, 0.033) #19807 lux roughly equals hign noon Sun / 5
+scene.world.ambient_color = (0.0, 0.0, 0.0)
+scene.world.mist_settings.use_mist = False
+scene.world.mist_settings.intensity = 0.0
+scene.world.mist_settings.depth = 25.0
+scene.world.mist_settings.start = 5.0
+scene.pov.media_enable = True
+scene.pov.media_scattering_type = '4'
+scene.pov.media_samples = 35
+scene.pov.media_diffusion_scale = (0.00002)
+scene.pov.media_diffusion_color = (0.000001, 0.000002, 0.000005)
+scene.pov.media_absorption_scale = (0.00002)
+scene.pov.media_absorption_color = (0.0000006067, 0.0000007939, 0.0)#up to 0.00007
+scene.pov.media_eccentricity = 0.0