change looking derection using wii motes ir in GRRlib?

is there somewan thats can help me.. i want too look around using wiimote and point it at the screen. and so i will look to left when i hold the wimote to left. anyway to do this?

This has been dealt with in the following thread.

As you can see from the video in this thread, there's an example of how to do in Wire3D's 'game' sample, if you want to have a look at the source code to see how it's done exactly. (you need to check out the SVN repository, that sample is not part of Wire3D 1.0.2)

thats wont help :( i dont use wore3D is there any easy way to do this in grrlib?¿?



Edited 1 time(s). Last edit at 12/02/2012 11:34AM by filfat.

Sorry, I am not going to spoon feed you. :)

The basic concept is explained in that thread and the sample. It's up to you to put a little effort in extracting the information you need for your particular scenario.

XD

Quote
antibyte
Sorry, I am not going to spoon feed you. :)

The basic concept is explained in that thread and the sample. It's up to you to put a little effort in extracting the information you need for your particular scenario.

Sorry I dont get it... can you "spoon feed" me?

Hope that helps. I tried doing a game like this but I could never get good draw distances so I gave up.

Basic hack is use the function like this;

float camera_x=20.0f, camera_y=4020.0f, camera_z=-1650;  //the position of camera
float camera_look_x=0, camera_look_y=0, camera_look_z=-1650;  //the direction the camera is looking

GRRLIB_Camera3dSettings( camera_x, camera_y, camera_z,  0,1,0,	camera_look_x, camera_look_y, camera_look_z );

Then you use the wiimote pointer to change the change "look" variables.

The correct way to do it is using this tutorial; [wii.scenebeta.com] by wilco2009 (it is in spanish so use a translater to read it. And it has downloadable code that works well.)

thats was hard to undarstand... google translate is realy bad XD

when i try shows the screen nothing and the translate is realt hard could you help me in the code? i can add you on sourceforge.

use the code that I posted. when you press a button add/subtract from the camera_look_x variable.

Quote
owen
I tried doing a game like this but I could never get good draw distances so I gave up.

That's partly because GRRLib is not really suitable for high performance rendering.
It does not support GX DisplayLists, meaning all rendering is done in immediate mode, which seriously wastes CPU time.
What's worse is the fact, that it also does not support VBOs (all rendering is done using GX_DIRECT with GX_SetVtxDesc, instead of using GX_INDEX8/16 and GX_SetArray), meaning the Wii hardware cannot utilize its vertex cache (works only with indexed geometries).
It also lacks LOD management for Objects, so you have to do that yourself.

@antibyte Its not really GRRLIB. It was mostly the data crunching that was the problem.

Yep, I'm not blaming GRRlib itself. I'm just pointing out that one would have to implement aforementioned features oneself in order to get decent perfomance (which is a prerequisite for rendering larger scenes).

Anyways, sorry for going off-topic. :)