Draw distance?

pyro9219 · Post by **pyro9219** » Thu Sep 01, 2005 4:05 am

I've got a rather large FPS world I'm working with using the default FPS camera, as well as a Quake 3 map. I can see down the far ends of some parts and see my skybox at large distances, but as I close the gap the walls for the quake 3 map will draw in. Is there a fix?

Elise · Post by **Elise** » Thu Sep 01, 2005 5:58 am

Camera->setFarValue ();

The default is 2000.0f I believe, so try something higher than that.

pyro9219 · Post by **pyro9219** » Thu Sep 01, 2005 6:59 am

for c#?

cam.FarValue(3000);
or maybe a smaller number?

pyro9219 · Post by **pyro9219** » Thu Sep 01, 2005 8:11 am

I got it, nevermind! Thanks! (4000 did the trick!)

GX · Post by GX » Thu Sep 01, 2005 8:51 am

Don't go overboard on your FAR setting! this WILL affect your Z-Buffer granuality and causes z-fighting and other artifacts on CERTAIN scenes if you push t.

Instead... if it is not just a q3 map port - try and scale down your meshes and movement speeds and you can use SMALLER far values which will remove artifacts from cheapo 16 bit buffers.

pyro9219 · Post by **pyro9219** » Sat Sep 03, 2005 9:42 am

at this point, the only loaded item I have is a Q3 map, I've been playing with controls and whatnot. This is mostly just for a fun way to learn C# for me.

I'm interested in scaling the mesh down, if you would be willing to point me in the right direction. I've already had to make the FPS node smaller, since in the 2nd demo (quake 3 map) the node is to tall to go under the platform things, and almost dwarfs a door.

Thanks for the support! This community has really been an excellent help and I hope to soon know enough about the engine to help people with the .NET end.

Elise · Post by **Elise** » Sat Sep 03, 2005 2:53 pm

To scale scenenode:

node->setScale(core::vector3df(1, 1, 1));

Node is the Q3 level scenenode in this case. Set the values lower than one to make the node smaller, f.ex. (core::vector3df(0.5f, 0.5f, 0.5f) to make it half size.
If you are going to scale the node really small, you might want to set the material flag 'NormalizeNormals' to avoid problems. Do it with:

node->setMaterialFlag(video::EMF_NORMALIZE_NORMALS, true);

You can also scale the mesh directly with the mesh manipulator:

irrSceneManager->getMeshManipulator()->scaleMesh(Q3LevelMesh->getMesh(0), core::vector3df(0.5f, 0.5f, 0.5f));

Sorry that's all in C++, don't know much anything about C#.

elander · Post by **elander** » Sat Sep 03, 2005 3:09 pm

You can have the far value you want, there is no restriction about that as long as you keep the formula far_value/near_value <= 2000. The value 2000 is just a number that works well for 16bit zbuffers. For 24bit zbuffers this value can be much bigger. I haven't tried yet but i think you can set Irrlicht engine to use a 24bit zbuffer and then you can use a much bigger limit than 2000.

pyro9219 · Post by **pyro9219** » Sat Sep 03, 2005 7:47 pm

I'm not sure exactly how your translation of 2000 would crowd a 16bit integer or memory address(perhaps background math done by the graphics engine that the 2000 represents?), but I do know that I'm running just fine on both my 128mb 9600XT and my geforce2 mobile 16mb card in my laptop. Laptop gets over 60fps currently with 4500 as my value in 1024x768

I think I'll see about scaling eitherway though.

pyro9219 · Post by **pyro9219** » Sat Sep 03, 2005 8:30 pm

node.Scale.Set(0.05f, 0.05f, 0.05f);

That doesn't change anything but seems to be what you were refering to about scaling the Q3 map file. :/