/**
* Call this function whenever the mouse moves while rotating the model.
*/
void Camera::rotate(int mouse_x, int mouse_y, float senstivity) {
xrot += (mouse_y - mouse_pos.y) * senstivity;
yrot += (mouse_x - mouse_pos.x) * senstivity;
updateMVPMatrix();
mouse_pos = glm::vec2(mouse_x, mouse_y);
}
/**
* Call this function whenever the mouse moves while moving the model.
*/
void Camera::move(int mouse_x, int mouse_y) {
pos.x -= (mouse_x - mouse_pos.x) * 0.1;
pos.y += (mouse_y - mouse_pos.y) * 0.1;
updateMVPMatrix();
mouse_pos = glm::vec2(mouse_x, mouse_y);
}
/**
* Call this function whenever the mouse moves while rotating the model.
*/
void Camera::rotate(int mouse_x, int mouse_y) {
xrot += mouse_y - mouse_pos.y;
yrot += mouse_x - mouse_pos.x;
updateMVPMatrix();
mouse_pos = glm::vec2(mouse_x, mouse_y);
}
void Camera::resetCamera() {
xrot = 20.0f;
yrot = -45.0f;
zrot = 0.0f;
pos = glm::vec3(0, 0, 170);
updateMVPMatrix();
}
void Camera::loadCameraPose(char* filename) {
std::ifstream ifs(filename);
if (ifs.fail()) {
std::cout << "Can't open file: " << filename << std::endl;
} else {
ifs >> xrot >> yrot >> zrot >> pos.x >> pos.y >> pos.z;
updateMVPMatrix();
}
}
void GLDrawUI::Common::setUp(SetUpPhase phase) {
switch (phase) {
case SetUpPhase::CompileLinkProgram:
compileLinkProgram();
/* FALL THROUGH */
case SetUpPhase::UseProgram:
useProgram();
/* FALL THROUGH */
case SetUpPhase::UpdateMVPMatrix:
updateMVPMatrix();
/* FALL THROUGH */
default:
break;
}
}
/**
* Update perspective projection matrix, and then, update the model view projection matrix.
*/
void Camera::updatePMatrix(int width,int height) {
_aspect = (float)width / (float)height;
float zfar = 3000.0f;
float znear = 0.1f;
// projection行列
// ただし、mat4はcolumn majorなので、転置した感じで初期構築する。
// つまり、下記の一行目は、mat4の一列目に格納されるのだ。
pMatrix = glm::mat4(
_f/_aspect, 0, 0, 0,
0, _f, 0, 0,
0, 0, (zfar+znear)/(znear-zfar), -1,
0, 0, (2.0f*zfar*znear)/(znear-zfar), 0);
updateMVPMatrix();
}
/**
* Update perspective projection matrix, and then, update the model view projection matrix.
*/
void Camera::updatePMatrix(int width,int height) {
float aspect = (float)width / (float)height;
float zfar = 1000.0f;
float znear = 10.0f;
float f = 1.0f / tan(fovy * M_PI / 360.0f);
// projection行列
// ただし、mat4はcolumn majorなので、転置した感じで初期構築する。
// つまり、下記の一行目は、mat4の一列目に格納されるのだ。
pMatrix = glm::mat4(
f/aspect, 0, 0, 0,
0, f, 0, 0,
-center.x, -center.y, (zfar+znear)/(znear-zfar), -1,
0, 0, (2.0f*zfar*znear)/(znear-zfar), 0);
updateMVPMatrix();
}
/**
* Call this function whenever the mouse moves while zooming.
*/
void Camera::zoom(int mouse_x, int mouse_y) {
pos.z += (mouse_pos.y - mouse_y) * 0.5f;
updateMVPMatrix();
mouse_pos = glm::vec2(mouse_x, mouse_y);
}
/**
* Call this function whenever the mouse moves while zooming.
*/
void Camera::zoom(float delta) {
pos.z -= delta;
updateMVPMatrix();
}
