It has problem when I use the worldIntersection to check the intersection node in the cave environment

[zhengwenxin]

Hello ,

I am using the Unignie Sim 2.6 version to do the CAVE with plugin Syncker.

I want to check the intersection node when the mouse clicked on the screen. It's good if I don't use the plugin of Syncker, but if 

I use the views mesh of my, the check is not right.

I have a test,find it has releationshif with the caveHead. But I need to move the caveHead ,so if it has some way to solve this problems?

Below is the mesh file of my.

Thanks!

views.mesh

[cash-metall]

Hello!

tell us more,
1. How exactly do you do intersection under the cursor?  (maybe some piece of code)
2. in which place of execution (SystemLogic/WorldLogic udpate/render/flush)

most likely this is due to the fact that `Game::get()->getPlayer ()` this is not the camera that will end up being rendered (because Syncker make addtional transformation for player in accordance with CAVE)
you can get a real camera and try to get intersection in AppWorldLogic::flush 

[zhengwenxin]

Hello!

Thank you for your reply.

I am using the intersection in the update() of SystejmLogic.

The intersection code is below:

Vec3 p0,p1; // get the current player (camera) PlayerPtr player = Game::get()->getPlayer(); if (player.get() == NULL)  return 0; // get width and height of the current application window int width = App::get()->getWidth(); int height = App::get()->getHeight(); // get the current X and Y coordinates of the mouse pointer int mouse_x = App::get()->getMouseX(); int mouse_y = App::get()->getMouseY(); // get the mouse direction from the player's position (p0) to the mouse cursor pointer (p1) player->getDirectionFromScreen(p0, p1, mouse_x, mouse_y, width, height); // create an instance of the WorldIntersection class to get the result WorldIntersectionPtr intersection = WorldIntersection::create(); // create an instance for intersected object and check the intersection ObjectPtr object = World::get()->getIntersection(p0,p1,1,intersection); // if the intersection has been occurred, change the parameter of the object's material if(object) {   for (int i = 0; i < object->getNumSurfaces(); i++)   {     object->setMaterialParameter("albedo_color", vec4(1.0f, 0.0f, 0.0f, 1.0f),i);         // show intersection details in console     Log::message("point: (%f %f %f) index: %i \n", intersection->getPoint().x, intersection->getPoint().y, intersection->getPoint().z, intersection->getIndex());   } } /* ... */

 

[cash-metall]

OK, it looks right
try calling this code from AppWorldLogic::flush.
or save the player in the flash and in the update take the direction from this player (not from Game :: getPlayer)

PlayerPtr p;

int AppWorldLogic::update()
{
if (p)
{
  //.....
  p->getDirectionFromScreen(...);
//.....
}
}

int AppWorldLogic::flush()
{
  p = Game::get()->getPlayer();
}