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Grass with low GPU cost

Guys, I really need a recommendation for a grass mesh with a low GPU cost.

I've found out the hard way that the Kite demo grass meshes absolutely KILL FPS, even though I've used the grass foliage tool to put them in, so they're not separate instances of the same mesh.

Is there an alternative with a much lower rendering cost? Particularly something free and better still if its from epic?   

Product Version: UE 4.15
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asked Jan 21 '19 at 12:45 PM in Rendering

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Delta1
46 5 11 20

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1 answer: sort voted first

The problem with the grass from the kite demo is not the meshes nor the polycount, is the cost of the shader. You can try replacing the textures of the grass textures with one that has less transparent sections.

You can also donwload the Infinity Blade's Grasslands demo, which also contains grass (in addition to other goodies).

But my advice would be for you to look into the shader of the grass you are having problems with and trying to make it simplier, aka less expensive by removing parts of it that you dont need.

Have a nice day!

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answered Jan 21 '19 at 02:50 PM

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Bariudol
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avatar image Delta1 Jan 21 '19 at 02:53 PM

Many thanks for that Bariudol, but I'm quite new to rendering, could you suggest which shaders should be removed for the best performance?

I'd really appreciate some help as I'm stuck fast!

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