private void openGLControl1_OpenGLDraw(object sender, SharpGL.RenderEventArgs args)
{
if (isDrawing)
{
OpenGL gl = openGLControl1.OpenGL;
// Clear vung nho dem
gl.Clear(OpenGL.GL_COLOR_BUFFER_BIT | OpenGL.GL_DEPTH_BUFFER_BIT);
// ===========================Ve he truc va mat phang day====================================
SystemDraw(gl);
//=================================CAMERA ROTATION============================================
// Camera rotation
gl.MatrixMode(OpenGL.GL_MODELVIEW);
gl.LoadIdentity();
/*gl.LookAt(rotate_x, rotate_y, rotate_z, // camera position (-4,4,-4)
* 1, 0, 1, // look at
* 0, 1, 0); // vector up*/
cam.calDist();
double x = cam.getX();
double y = cam.getY();
double z = cam.getZ();
double u_x = cam.getU_X();
double u_y = cam.getU_Y();
double u_z = cam.getU_Z();
// goc quay
double angle = cam.getAngle();
gl.LookAt(x, y, z,
1, 0, 1,
u_x, u_y, u_z);
//============================================================================================
// Kiem tra khi nguoi dung select 1 doi tuong va co thay doi mau to khong
if (isChangedColor)
{
// Doi mau nguoi chung luc click vao listbox
drObj.setColorOfOneObj(indexCurrentObj, currentColor);
isChangedColor = false; // reset lai
}
if (isAffine)
{
switch (currentAffine)
{
case AFFINE.TRANSLATE:
drObj.updateTranCoor(indexCurrentObj, pos.x, pos.y, pos.z);
break;
case AFFINE.ROTATE:
drObj.updateRotaCoor(indexCurrentObj, rotation.x, rotation.y, rotation.z);
break;
case AFFINE.SCALE:
drObj.updateScaleCoor(indexCurrentObj, scale.x, scale.y, scale.z);
break;
}
}
// Draw object
if (angle != 90 && angle != 270)
{
drObj.draw(gl, indexCurrentObj);
}
// Reset lai isDrawing
isDrawing = false;
}
}