Hello!
This is a sample of low number grass from bird’s view.
I did this after i received many complains about this issue on how the grass would look on top view, my aim was ensuring the fact of using low poly and strand number can look sometimes good regarding the view from top because here I’m using only 1700 hair strands and 40 in children setting.
So how it would look if you use slight higher number than this?
I have taken settings from your file.
Then I have prepared test.
1700 strands was to low value. I used 50000 with 40 childrens. And this is eating RAM memory on breakfast.
Good.
Now it need your touch in distributing the grass, setting scales correctly and using very low poly grass strands to improve performance. Moreover the camera view from this distance will not make anyone recognize the low poly strands on land so decrease the quality as much as possible if from this distance.
I have made another experiment.
Hard one, it took 1h 17m 32s of my life
300,000 with 40 chilrends each. Based on low poly model, not path.
I have prepared additional linux swap memory to make this.
Calculations took 7,8GB RAM and 12GB Swap memory.
It’s so high ram consuming, are these grass or small bushes?
If they are grass then i think their scale is bit big. I’d prefer the distribution to be regular, it make the grass look even.
In general making fields of grass is a hard job and need large performance. But it would be easier for me if i test it personally and make you a short solution for it.
I was trying to render an architecture scene - a house with grass around it and it looked like it can’t handle lots of grass. Anyone had succesfully rendered lots of grass with particles? I got 4GB of RAM, but I remember that some renderers use instances and thus can handle such tricks easily.
In all the work I’ve done I use texture in postproduction and I read in many places that this is faster but I see those renders with grass and I’d like to know how to do it. I can do a nice grass in small patches but even with children used I can’t make it bigger. I’ll see about your tip and try to make larger page file.
