So I saw this pic of clouds in game The Witness and I really liked how they made the clouds. How to reproduce them?
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3$\begingroup$ Those were painted, probably a texture on some planes $\endgroup$– J SargentCommented Jun 22, 2015 at 20:38
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$\begingroup$ oh..well that's a shame $\endgroup$– Samurai FoxCommented Jun 22, 2015 at 20:50
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$\begingroup$ ^^ the novice is right... If you download a cloud texture, set it's type to "Billboard" and make it shadeless, gigantic, and always slowly wheeling across the sky, you should be good. $\endgroup$– ruckusCommented Jun 22, 2015 at 20:51
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1$\begingroup$ related: blender.stackexchange.com/questions/19690/… $\endgroup$– user1853Commented Jun 22, 2015 at 21:04
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1$\begingroup$ Related: blender.stackexchange.com/q/6835/599 $\endgroup$– gandalf3Commented Jun 23, 2015 at 8:35
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1 Answer
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sorry for the previous short and unexplained answer :)
First open up blender and add a plane, then UV unwrap it like below (I've made a very simple cloud texture for that with transparency)
then add a plane so we can actually see something in the test render
then go to rendered shading mode by enabling it from the red icon indicator
notice how the transparency (alpha channel) has been filled with black?
its because of the default material setup as shown in the picture below! the diffuse shader can't render transparency
its only using a diffuse shader with a image with transparency
now, if we add a transparent shader with mix shader node and the alpha from original image as the fac value then we will get something like below
its basically checking weather a part of the texture is transparent and if so it is feeding it through the transparent shader so we can get the actual transparency..... and the rest is going through the diffuse shader
by this method you can get the cloud you were referring to.....
now, you might wanna import image as a plane (check if the addon is enabled) then apply this method, but for some wired reason (I don't know why) its not working in my blender 2.74... hope somebody can lighten me up :)
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1$\begingroup$ This is visible form one side only? Because in the Witness the cloud is 3d...meaning that every side looks different and like a real cloud, random. $\endgroup$ Commented Jun 23, 2015 at 21:25
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$\begingroup$ @SamuraiFox , yes one side only.... if want to get something more like real clouds then I suggest making a sphere more like a cloud (maybe with sculpting mode?) and then use Volume Scatter as the material and set the color to white... maybe add a texture to randomize it :) $\endgroup$– jamius19Commented Jun 24, 2015 at 4:58
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$\begingroup$ that sounds promising...I'll try that $\endgroup$ Commented Jun 24, 2015 at 10:48