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-rw-r--r--transform.cpp27
1 files changed, 27 insertions, 0 deletions
diff --git a/transform.cpp b/transform.cpp
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+++ b/transform.cpp
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+#include "transform.h"
+#include "camera.h"
+#include <glm/gtx/transform.hpp>
+
+Transform::Transform(glm::vec3 pos, glm::vec3 rot, glm::vec3 scale) : pos {pos}, rot {rot}, scale {scale} { }
+
+glm::mat4
+Transform::GetModel() const
+{
+ const auto posMat = glm::translate(pos);
+ const auto scaleMat = glm::scale(scale);
+ const auto rotX = glm::rotate(rot.x, glm::vec3(1.0, 0.0, 0.0));
+ const auto rotY = glm::rotate(rot.y, glm::vec3(0.0, 1.0, 0.0));
+ const auto rotZ = glm::rotate(rot.z, glm::vec3(0.0, 0.0, 1.0));
+ const auto rotMat = rotX * rotY * rotZ;
+
+ return posMat * rotMat * scaleMat;
+}
+
+glm::mat4
+Transform::GetMVP(const Camera & camera) const
+{
+ const auto VP = camera.GetViewProjection();
+ const auto M = GetModel();
+
+ return VP * M;
+}