Create Grass
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Create Grass
Makes strands on a given surface that are curvy to look like grass blades. Zip contains
a shader preset for the grass, copy it to your »DSPresets/Shaders/Material«
folder
Related plugins: New Grass
local backup: Create Grass v1.1.rar
Related plugins: New Grass
local backup: Create Grass v1.1.rar
author site: n/a / si-community thread
Re: Create Grass
Thanks everyone,
the main reason i uploaded this compound is that
it works on curved surfaces (torus) as well as it does
on planar ones (grid).
from the the few render tests i did,
i would say that strands have a slight advantage
the main reason i uploaded this compound is that
it works on curved surfaces (torus) as well as it does
on planar ones (grid).
from the the few render tests i did,
i would say that strands have a slight advantage
Re: Create Grass
cool, thanks again for sharing.nassosy wrote: from the the few render tests i did,
i would say that strands have a slight advantage
Re: Create Grass
I did some more tests here are the results on my 6GB Ram Core 2 Quad with 2010sp1 64bit:
(with Raytraced Shadows)
65000 hairs 0:03:53.24
146561 strands 0:00:24.99
(with 1024 Shadow Map, looks like crap though)
65000 hairs 0:00:49.73
(with 2048 Volumic Shadow Map)
65000 hairs 0:00:15.60
146561 strands 0:00:28.58
(with 4096 Volumic Shadow Map)
65000 hairs 0:00:19.08
146561 strands 0:00:39.03
(with Raytraced Shadows)
65000 hairs 0:03:53.24
146561 strands 0:00:24.99
(with 1024 Shadow Map, looks like crap though)
65000 hairs 0:00:49.73
(with 2048 Volumic Shadow Map)
65000 hairs 0:00:15.60
146561 strands 0:00:28.58
(with 4096 Volumic Shadow Map)
65000 hairs 0:00:19.08
146561 strands 0:00:39.03
- Attachments
-
- grass volumic Shadow map.jpg (186.01 KiB) Viewed 4079 times
-
- grass Strands Raytraced-1.jpg (196.01 KiB) Viewed 4079 times
Re: Create Grass
wow, looks like it's really fast for raytracing!
Re: Create Grass
i have a problem here
i dont get why it renders some strands completely black, like they have some normals issue or lack of color attribute, i didnt do anything
i didnt do any customization stuff i just create a grid, create a pointcloud, then create -> ice tree and imported the compound.
plugged the get grid to surface input and render it.
any clue? i'm a grass fanboy and i'm loving this compound
further investigation took me to find out that this issue happens with mental ray sun and sky, when you create sky/sun seutp you get this issue. is there any way to have them work with sky/sun setup? or i'm doing something wrong.
deleted sun and it still doing it, now i got rid of the environment and the problem's gone. re-plugged environment and it renders some black strands, so its bound to environment..
thanks!
i dont get why it renders some strands completely black, like they have some normals issue or lack of color attribute, i didnt do anything
i didnt do any customization stuff i just create a grid, create a pointcloud, then create -> ice tree and imported the compound.
plugged the get grid to surface input and render it.
any clue? i'm a grass fanboy and i'm loving this compound
further investigation took me to find out that this issue happens with mental ray sun and sky, when you create sky/sun seutp you get this issue. is there any way to have them work with sky/sun setup? or i'm doing something wrong.
deleted sun and it still doing it, now i got rid of the environment and the problem's gone. re-plugged environment and it renders some black strands, so its bound to environment..
thanks!
Re: Create Grass
That's weird i never had any problems with sun/sky setup
(using Pass->Edit->Initialize Sky Shader)
maybe its the way you create your sun/sky
care to share a scene file?
(using Pass->Edit->Initialize Sky Shader)
maybe its the way you create your sun/sky
care to share a scene file?
- Attachments
-
- grass.jpg (93.28 KiB) Viewed 3940 times
Re: Create Grass
here is the 2011 scene
- Attachments
-
- grass sun-sky 2011.rar
- (185.57 KiB) Downloaded 243 times
Re: Create Grass
i downloaded your scene and the problem is there too, you gotta activate final gather, thats what i did with your scene, set gamma 2.2 in exposure shader and f-stop at 8 to see better.
it seems it has some problem with FG?
i'm uploading my scene in a moment
it seems it has some problem with FG?
i'm uploading my scene in a moment
- Attachments
-
- grass_test.rar
- Grass scene
- (181.71 KiB) Downloaded 221 times
Re: Create Grass
The problem seems to be with the grass normals looking on the wrong side :
' WARNING : RCFG 0.6 warn 542002: angle between normal and geometry normal > 90 degrees
the only solution i found is setting the Mode to "Expert"
and the "Filter Size = 0"
' WARNING : RCFG 0.6 warn 542002: angle between normal and geometry normal > 90 degrees
the only solution i found is setting the Mode to "Expert"
and the "Filter Size = 0"
- Attachments
-
- grass fg.jpg (102.97 KiB) Viewed 3087 times
Re: Create Grass
oh thats fine, i use expert with 0 0 quite often for exteriors, so it should work
i'll check it in a bit
i'll check it in a bit
Re: Create Grass
viewtopic.php?f=25&t=752
used for the grass here,thanks again for this awesome compound, i had so much fun
used for the grass here,thanks again for this awesome compound, i had so much fun
Re: Create Grass
Here is a sample for those having difficulties.
- Attachments
-
- Create Grass Sample.rar
- scene file
- (188.19 KiB) Downloaded 337 times
-
- screenshot
- create grass sample.jpg (149.67 KiB) Viewed 6196 times
Re: Create Grass
SI 2011 AP 64 bit
when load compoud error
// WARNING : 3000-EDIT-AddICECompoundNode - Could not set value on [Randomize Around Value 0].Variance
// WARNING : 3000-EDIT-AddICECompoundNode - Could not set value on [Randomize Around Value 3].Variance
// WARNING : 3000-EDIT-AddICECompoundNode - Could not set value on [Randomize Around Value 14].Variance
// WARNING : 3000-EDIT-AddICECompoundNode - Could not set value on [Randomize Around Value 16].Variance
// WARNING : 3000-EDIT-AddICECompoundNode - Could not set value on [Randomize Around Value 17].Variance
not work bend and rand angle
ok reconnect node bend strands after self strand size and color and it work! strange
when load compoud error
// WARNING : 3000-EDIT-AddICECompoundNode - Could not set value on [Randomize Around Value 0].Variance
// WARNING : 3000-EDIT-AddICECompoundNode - Could not set value on [Randomize Around Value 3].Variance
// WARNING : 3000-EDIT-AddICECompoundNode - Could not set value on [Randomize Around Value 14].Variance
// WARNING : 3000-EDIT-AddICECompoundNode - Could not set value on [Randomize Around Value 16].Variance
// WARNING : 3000-EDIT-AddICECompoundNode - Could not set value on [Randomize Around Value 17].Variance
not work bend and rand angle
ok reconnect node bend strands after self strand size and color and it work! strange
Re: Create Grass
did anyone try to create animated grass with this compound?
Re: Create Grass
When I set the Attribute_Color to StrandColor it is not bend, but when it is set to Color, The blades are bended. I do not understant why tweaking the render_tree changes the shape of the blades?
I tried to reconnect the node bend strands before self strand size and color, as it was connected after, and I have bended blades again but no more color.
I am using Softimage 9.5 64 bit (2011 Subscription Advantage...)
JoQ
I tried to reconnect the node bend strands before self strand size and color, as it was connected after, and I have bended blades again but no more color.
I am using Softimage 9.5 64 bit (2011 Subscription Advantage...)
JoQ
Re: Create Grass
Hallo
Anyone knows how can I use a texture to color the grass made with this compound?
Anyone knows how can I use a texture to color the grass made with this compound?
(sorry for my english)
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