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Thread: Realistic grass

  1. #1
    Member bckpkol's Avatar
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    Realistic grass

    Made with grasslab addon, textures are mine.
    Click image for larger version. 

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  2. #2
    Is the grass suppose to look that shiny?
    Project 7722486 27677 Super Sentai/Power Rangers Inspired Animated Series



  3. #3
    Member bckpkol's Avatar
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    I don't know suppose it or not. It's emission shader. Here's another, diffuse version:
    Click image for larger version. 

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    My name is pronounced as Cullassnekuff Denise. Now I'm pretty familiar to you, no?



  4. #4
    robwesseling
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    Looks quit good.
    I had also good results with a grass shader as follows;
    - Mix diffuse with translucent
    - Add fresnell (Or a bpr fesnell)
    - Look for IOR backflip, (Greg Zaal) to flip the IOR on the backfaces of the grass. (it's here on blenderartists)



  5. #5
    Member Meta-Androcto's Avatar
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    hi, was that from the grass lab addon in addons contrib?



  6. #6
    It seems to me that the grass from the grass lab addon is using particles.
    Here I used grass free, I believe it is on blendswap. But it's original shader is quite bad. I had to replace the add-shader node into mix shader node, lower the albedo values, lower the saturation. And applied an IOR flip so that backface shows correct fresnell, and add pbr-specular-reflection (cycnicat). Then saved render as EXR > Natron > filmic > CDL (power and slope) and some grading. Eh ... and at te end of the process I used the microsoft Photo app ?. Oops ?

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  7. #7
    Member bckpkol's Avatar
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    Why Fresnel? I don't know, maybe it should be connected to the color node of the Glossy shader, but does grass have Fresnel, and if, what value?
    My name is pronounced as Cullassnekuff Denise. Now I'm pretty familiar to you, no?



  8. #8
    Originally Posted by bckpkol View Post
    Why Fresnel? . . . but does grass have Fresnel, and if, what value?
    Everything has fresnel . . . !


    From 'V-Ray in real life'. Here's the full version -





  9. #9
    Member bckpkol's Avatar
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    Well, that https://blenderartists.org/forum/sho...sing-particles second version looks good even without Fresnel, and I'm afraid that adding it will ruin the picture. But still nobody answered: what refractive index do grass have?
    My name is pronounced as Cullassnekuff Denise. Now I'm pretty familiar to you, no?



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