/**
* Create a Transformation Matrix 2D
*
* @param translation Position
* @param scale Scale
* @return Transformation Matrix 2D
*/
public static Matrix4f createTransformationMatrix(Vector2f translation, Vector2f scale) {
Matrix4f matrix = new Matrix4f();
matrix.setIdentity();
Matrix4f.translate(translation, matrix, matrix);
Matrix4f.scale(new Vector3f(scale.x, scale.y, 1f), matrix, matrix);
return matrix;
}
/**
* Create a Transformation Matrix 3D
*
* @param translation Position
* @param rx Rotation X
* @param ry Rotation Y
* @param rz Rotation Z
* @param scale Scale
* @return Transformation Matrix 3D
*/
public static Matrix4f createTransformationMatrix(
Vector3f translation, float rx, float ry, float rz, float scale) {
Matrix4f matrix = new Matrix4f();
matrix.setIdentity();
Matrix4f.translate(translation, matrix, matrix);
Matrix4f.rotate((float) Math.toRadians(rx), new Vector3f(1, 0, 0), matrix, matrix);
Matrix4f.rotate((float) Math.toRadians(ry), new Vector3f(0, 1, 0), matrix, matrix);
Matrix4f.rotate((float) Math.toRadians(rz), new Vector3f(0, 0, 1), matrix, matrix);
Matrix4f.scale(new Vector3f(scale, scale, scale), matrix, matrix);
return matrix;
}
/**
* Create orthographic matrix
*
* @param left
* @param right
* @param bottom
* @param top
* @param near
* @param far
* @return Matrix4f
*/
public static Matrix4f orthographic(
float left, float right, float bottom, float top, float near, float far) {
Matrix4f matrix = new Matrix4f();
matrix.m00 = 2.0f / (right - left);
matrix.m11 = 2.0f / (top - bottom);
matrix.m22 = 2.0f / (near - far);
matrix.m03 = (left + right) / (left - right);
matrix.m13 = (bottom + top) / (bottom - top);
matrix.m23 = (far + near) / (far - near);
matrix.m33 = 1.0f;
return matrix;
}
/**
* Create a View Matrix
*
* @param camera Camera
* @return View Matrix
*/
public static Matrix4f createViewMatrix(Camera camera) {
Matrix4f viewMatrix = new Matrix4f();
viewMatrix.setIdentity();
Matrix4f.rotate(
(float) Math.toRadians(camera.getPitch()), new Vector3f(1, 0, 0), viewMatrix, viewMatrix);
Matrix4f.rotate(
(float) Math.toRadians(camera.getYaw()), new Vector3f(0, 1, 0), viewMatrix, viewMatrix);
Matrix4f.rotate(
(float) Math.toRadians(camera.getRoll()), new Vector3f(0, 0, 1), viewMatrix, viewMatrix);
Vector3f cameraPost = camera.getPosition();
Vector3f negativeCameraPos = new Vector3f(-cameraPost.x, -cameraPost.y, -cameraPost.z);
Matrix4f.translate(negativeCameraPos, viewMatrix, viewMatrix);
return viewMatrix;
}
