camera.cpp

#include"Camera.h"



Camera::Camera(int width, int height, glm::vec3 position) {
	Camera::width = width;
	Camera::height = height;
	Camera::Position = position;
}



void Camera::Matrix(float FOVdeg, float nearPlane, float farPlane, Shader& shader, const char* uniform, glm::mat4 transform) {
	// Initializes matrices since otherwise they will be the null matrix
	glm::mat4 view = glm::mat4(1.0f);
	glm::mat4 projection = glm::mat4(1.0f);
	// Makes camera look in the right direction from the right position
	view = glm::lookAt(Position, Position + Orientation, Up);
	// Adds perspective to the scene
	projection = glm::perspective(glm::radians(FOVdeg), (float)width / height, nearPlane, farPlane);
	// Exports the camera matrix and uniform matrix to the Vertex Shader
	glUniformMatrix4fv(glGetUniformLocation(shader.ID, uniform), 1, GL_FALSE, glm::value_ptr(projection * view * transform));

}