104 lines
2.7 KiB
C++
104 lines
2.7 KiB
C++
|
#include "../../HEADERS/SCENE/ObjectInstance.hpp"
|
||
|
|
#include <glm/gtc/matrix_transform.hpp>
|
||
|
|
|
||
|
|
#define GLM_ENABLE_EXPERIMENTAL
|
||
|
|
#include <glm/gtx/transform.hpp>
|
||
|
|
#include <glm/gtx/norm.hpp>
|
||
|
|
#include <iostream>
|
||
|
|
|
||
|
|
/*was glm/gtc/before */
|
||
|
|
#include <glm/gtx/quaternion.hpp>
|
||
|
|
|
||
|
|
/* aarch64-linux-gnu/include/math.h already defines it */
|
||
|
|
#ifndef M_PI
|
||
|
|
#define M_PI 3.14159265358979323846264338327950288
|
||
|
|
#endif
|
||
|
|
|
||
|
|
glm::mat4 WorldInstanceable::getLocalTransform() {
|
||
|
|
glm::mat4 transform = glm::mat4(1.0);
|
||
|
|
transform *= scaleMat;
|
||
|
|
transform *= rotation;
|
||
|
|
return transform;
|
||
|
|
}
|
||
|
|
|
||
|
|
glm::mat4 WorldInstanceable::getGlobalTransform() {
|
||
|
|
glm::mat4 transform = getLocalTransform();
|
||
|
|
|
||
|
|
//transform = glm::translate(glm::mat4(transform), position);
|
||
|
|
|
||
|
|
return glm::translate(glm::mat4(1.0), position) * transform;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
void WorldInstanceable::alignTo(glm::vec3 direction) {
|
||
|
|
glm::vec3 localZ;
|
||
|
|
|
||
|
|
direction = glm::normalize(direction);
|
||
|
|
localZ = localFront;
|
||
|
|
|
||
|
|
glm::quat a = glm::rotation(localZ, direction);
|
||
|
|
|
||
|
|
localFront = glm::toMat4(a) * glm::vec4(localFront, 0.0f);
|
||
|
|
|
||
|
|
glm::quat b = glm::rotation(localZ, direction);
|
||
|
|
|
||
|
|
localUp = glm::toMat4(b) * glm::vec4(localUp, 0.0f);
|
||
|
|
|
||
|
|
//++++++++++++++++++++++++++
|
||
|
|
//glm::vec3 right = glm::normalize(cross(localFront, localUp));
|
||
|
|
glm::vec3 right = glm::normalize(cross(localUp, localFront));
|
||
|
|
right.y = 0;
|
||
|
|
glm::vec3 stabilizedR = glm::normalize(right);
|
||
|
|
|
||
|
|
glm::quat c = glm::rotation(right, stabilizedR);
|
||
|
|
localUp = glm::toMat4(c) * glm::vec4(localUp, 0);
|
||
|
|
localUp = -glm::cross(stabilizedR, localFront);
|
||
|
|
rotation = glm::mat4(glm::mat3(stabilizedR, localUp, localFront));
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
void WorldInstanceable::setPosition(glm::vec3 position) {
|
||
|
|
this->position = position;
|
||
|
|
}
|
||
|
|
|
||
|
|
void WorldInstanceable::rotate(glm::vec3 axis, float angle) {
|
||
|
|
rotation *= glm::rotate(glm::radians(angle), axis);
|
||
|
|
}
|
||
|
|
|
||
|
|
void WorldInstanceable::scale(float factor) {
|
||
|
|
scaleMat *= glm::scale(glm::mat4(1.0), glm::vec3(factor));
|
||
|
|
}
|
||
|
|
|
||
|
|
void WorldInstanceable::scale(glm::vec3 factors) {
|
||
|
|
scaleMat *= glm::scale(glm::mat4(1.0), factors);
|
||
|
|
}
|
||
|
|
|
||
|
|
void WorldInstanceable::setup(glm::vec3 position) {
|
||
|
|
this->position = position;
|
||
|
|
localFront = glm::vec3( 0, 0, 1);
|
||
|
|
localUp = glm::vec3( 0, 1, 0);
|
||
|
|
rotation = glm::mat4(1.0f);
|
||
|
|
scaleMat = glm::mat4(1.0f);
|
||
|
|
}
|
||
|
|
|
||
|
|
WorldInstanceable::WorldInstanceable(glm::vec3 position) {
|
||
|
|
setup(position);
|
||
|
|
}
|
||
|
|
|
||
|
|
WorldInstanceable::WorldInstanceable(glm::vec3 position, glm::vec3 scale) {
|
||
|
|
setup(position);
|
||
|
|
this->scale(scale);
|
||
|
|
}
|
||
|
|
|
||
|
|
WorldInstanceable::WorldInstanceable(glm::vec3 position, glm::vec3 axis, float angle) {
|
||
|
|
setup(position);
|
||
|
|
this->rotate(axis, angle);
|
||
|
|
}
|
||
|
|
|
||
|
|
WorldInstanceable::WorldInstanceable(glm::vec3 position, glm::vec3 scale, glm::vec3 axis, float angle) {
|
||
|
|
setup(position);
|
||
|
|
this->scale(scale);
|
||
|
|
this->rotate(axis, angle);
|
||
|
|
}
|