Many thanks!!!

Hi,

I try to develop a Virtual Reality application using Google's Cardboard Java API.

Do you have any example?

I have a big problem adjusting JPCT's coordination system with Cardboard's Java API coordinate system.

I think the solution exists in the method
public void onDrawEye(Eye eye)

My code is:

 @Override
    public void onDrawEye(Eye eye) {

       com.threed.jpct.Matrix camBack = world.getCamera().getBack();
        camBack.setIdentity();
        tempTransform.setDump(eye.getEyeView());

        tempTransform.transformToGL();
        camBack.matMul(tempTransform);

        world.getCamera().setBack(camBack);

         fb.clear(RGBColor.BLACK);
         fb.clearZBufferOnly();

         world.renderScene(fb);
         world.draw(fb);

         fb.display();
}


The Objects3D models added to the world  don't look ok according to the XYZ positions a I have set.


I suppose the problem is because JPCT uses a different coordinate system than OpenGL.

Can you suggest a solution?

Thanks in advance

Hi,

I'm  wondering if it is possible to set a repeat mode for a texture like the one in the following Opengl code.


GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_REPEAT);
GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_REPEAT);

If yes then is it possible to set the number of repetition in S and T?

thanks

Hi.

The Alien Runner game uses a straight road which is based on Object3d planes.

In case  a developer needs to create a similar game with curved roads what the solution will be?

I'm trying to develop a method which creates a curved road.

The method will be something like this:

Object3D curvedPlane = createCurvedPlane(float innerRadius,float ouRadius,float angle,int quads)

This method is like the ExtendedPrimitives.createTube(float innerRadius, float outerRadius, float height, int quads)
but the height is equal to zero and the tube is not round but is drawn arount to an angle < 360 degrees.

Any idea to help me?

Thanks in Advance.
Modify message

Thanks for your answer.

But generally, is there any specific rule when we have to do the rotation?

Thanks in Advance

Ok

thank you

Thanks but in case of integrating jPCT-AE with Vuforia ,the solution of rotating 180 degrees around X axis  will screw up culling and such?

Thanks in Advance

Thanks for the quick answer.

This  solution I have to apply for camera position and direction?

I mean all the position , rotation ( any similar methods ) can use this solution?

Thanks in advance