Search
-
Re: LoDs: From how many tris does it make sense?
It is just that I know what Nvidia is telling me based on that paper. It makes sense to me. The best example is the terrain idea I gave you because that is mainly where it is going to be used. In a game you cant just batch 10000 objects together. A lot of Nvidia's stuff is not really translated for games. Sometimes they… -
Re: LoDs: From how many tris does it make sense?
One last thing, Yes I have read 99% of Nvidia's stuff and crytek and Killzone, and taht one you posted about 8x overdraw, that is not a paper to talk about LOD, they are showing something completely different and does not prove/disprove set any standard for LOD. But the last, most important thing, aside from what I said… -
Re: LoDs: From how many tris does it make sense?
The more I think about it, the sphere-test isn't actually all that bad, the poles are still generally within a reasonable density limit. But here is a much better example, and likely more realistic testcase anyway. A long cylinder! With traditional modeling, we would get a model that looks like the low on the left, but for… -
Re: LoDs: From how many tris does it make sense?
IMO, here are some things to keep in mind: When/where/what and LOD depends on: Platform(s): Does the platform get stalled by texture fetches, or on that platform do stalled threads get swapped out to perform ALU operations (useful on 360). Shader Complexity: if we have to render extra pixel quads on the GPU because of… -
Re: LoDs: From how many tris does it make sense?
So whatever items you can batch together, those can be as low LOD as you want. As in my grass example, you have 2 triangles per grass blade. What you dont want to do is say, "well this is dumb 2 triangles when it could draw 598 more for free and I would have the same framerate". Instead try and batch those small objects… -
Re: LoDs: From how many tris does it make sense?
I dont know what the issue would be, you could use something like dropbox though and just post links. Now, this really depends on the content of your displacement map. If all you're doing is baking a smooth sphere to a lowpoly sphere, you really shouldn't see any difference at all. But once you start adding any sort of… -
Re: LoDs: From how many tris does it make sense?
With my limited knowledge I do think it matters most of the time especially if you're vertex bound. However if you are already bound by batch count then having LoDs is not going to help much at all. Lets say you have 400 draw calls and each call equals an individual 3d object. Let's also say that this equals 1000 000 tris… -
Re: LoDs: From how many tris does it make sense?
I guess, I'm trying to answer your questions, you asked them, I gave you technical information as a GFX programmer, and I have done the tests and I'm just trying to keep you educated to what I know and understand what that thing is saying. Correct. You batched them together AND are drawing the same amount of vertices. So… -
Re: LoDs: From how many tris does it make sense?
Yeah, I would be curious to experiment with relatively low displacement maps, certainly that would work for some things. For other things like accurate hard surface work, you would need likely 1:1 ratio though. Well, this assumes that you're comparing 1million displaced to 1million raw polies, which would never be the…
9 results