Question

在opengl Es2中，我按照以下代码旋转相机（向前，向上和侧向）。

但是，此方法将滚动引入视图。如果我注释掉一个或另一个（标题或音高），则没有滚动。

theading和tpitch通常只有1或2度（或-1或-2）。

有关消除滚动的任何想法吗？

 //rotate heading
    this.rotate_XYZ(cam.right, tHeading, cam.up);
    this.rotate_XYZ(cam.forward, tHeading, cam.up);         
 //rotate pitch

    this.rotate_XYZ(cam.up, tPitch, cam.right);
    this.rotate_XYZ(cam.forward, tPitch, cam.right);    

public void rotate_XYZ(j3Vector sVector,float angle, j3Vector a){

Matrix.setIdentityM(this.mCameraRotateMatrix, 0);
Matrix.rotateM(this.mCameraRotateMatrix, 0, angle, a.x, a.y, a.z);

this.mRHS_Vector[0]=sVector.x;
this.mRHS_Vector[1]=sVector.y;
this.mRHS_Vector[2]=sVector.z;


Matrix.multiplyMV(this.mRESULT_Vector,0, mCameraRotateMatrix,0,this.mRHS_Vector, 0);

sVector.set(this.mRESULT_Vector[0],this.mRESULT_Vector[1],this.mRESULT_Vector[2]);

return; 


}

Answer 1

解决方案

向上旋转世界并向上旋转凸轮。

//rotate heading
this.rotate_XYZ(cam.right, tHeading, world.up);
this.rotate_XYZ(cam.forward, tHeading, world.up);         
this.rotate_XYZ(cam.up, tHeading, world.up);

//旋转音高

this.rotate_XYZ(cam.up, tPitch, cam.right);
this.rotate_XYZ(cam.forward, tPitch, cam.right);    

public void rotate_XYZ(j3Vector sVector,float angle, j3Vector a){

 Matrix.setIdentityM(this.mCameraRotateMatrix, 0);
 Matrix.rotateM(this.mCameraRotateMatrix, 0, angle, a.x, a.y, a.z);

 this.mRHS_Vector[0]=sVector.x;
 this.mRHS_Vector[1]=sVector.y;
 this.mRHS_Vector[2]=sVector.z;


 Matrix.multiplyMV(this.mRESULT_Vector,0, mCameraRotateMatrix,0,this.mRHS_Vector, 0);

 sVector.set(this.mRESULT_Vector[0],this.mRESULT_Vector[1],this.mRESULT_Vector[2]);

 return; 


 }

围绕轴和滚动打开G1旋转矢量

1 个答案: