Calculating the intersection point of Ray and Scene2d UI plane
I am rendering a Scene2d UI table on the 3D world using SpriteBatch, projection matrix and PerspectiveCamera
public void render (float delta)
spriteBatch.setProjectionMatrix(projectionMatrix.set(camera.combined).mul(transform));
spriteBatch.begin();
rootTable.draw(spriteBatch, 1.0f);
spriteBatch.end();
The mouse pointer is hidden and locked to the centre of the screen. When a touchUp event is fired, if the mouse is inside the bounding box of the table, I want to calculate the Vector2 position where the mouse was actually clicked inside the table, so I can call the Table.hit function to get the clicked Actor. Also is this the right approach to draw 2D menu on the 3D world.
I am using this code to do a Ray intersection test.
Ray ray = camera.getPickRay(screenX, screenY);
int result = -1;
float distance = -1;
transform.getTranslation(position);
if (Intersector.intersectRayBoundsFast(ray, position, new Vector3(40, 40, 20) ))
Gdx.app.log("RAY", "Table Clicked");
The Scene2d coordinates start from the bottom left corner and in 3D they start from the centre. I used new Vector3(40, 40, 20) as dummy bounds.
java android 3d libgdx game-development
asked Nov 10 '18 at 10:15
Pratik Velani
356
add a comment |
I am rendering a Scene2d UI table on the 3D world using SpriteBatch, projection matrix and PerspectiveCamera
public void render (float delta)
spriteBatch.setProjectionMatrix(projectionMatrix.set(camera.combined).mul(transform));
spriteBatch.begin();
rootTable.draw(spriteBatch, 1.0f);
spriteBatch.end();
The mouse pointer is hidden and locked to the centre of the screen. When a touchUp event is fired, if the mouse is inside the bounding box of the table, I want to calculate the Vector2 position where the mouse was actually clicked inside the table, so I can call the Table.hit function to get the clicked Actor. Also is this the right approach to draw 2D menu on the 3D world.
I am using this code to do a Ray intersection test.
Ray ray = camera.getPickRay(screenX, screenY);
int result = -1;
float distance = -1;
transform.getTranslation(position);
if (Intersector.intersectRayBoundsFast(ray, position, new Vector3(40, 40, 20) ))
Gdx.app.log("RAY", "Table Clicked");
The Scene2d coordinates start from the bottom left corner and in 3D they start from the centre. I used new Vector3(40, 40, 20) as dummy bounds.
java android 3d libgdx game-development
asked Nov 10 '18 at 10:15
Pratik Velani
356
add a comment |
I am rendering a Scene2d UI table on the 3D world using SpriteBatch, projection matrix and PerspectiveCamera
public void render (float delta)
spriteBatch.setProjectionMatrix(projectionMatrix.set(camera.combined).mul(transform));
spriteBatch.begin();
rootTable.draw(spriteBatch, 1.0f);
spriteBatch.end();
The mouse pointer is hidden and locked to the centre of the screen. When a touchUp event is fired, if the mouse is inside the bounding box of the table, I want to calculate the Vector2 position where the mouse was actually clicked inside the table, so I can call the Table.hit function to get the clicked Actor. Also is this the right approach to draw 2D menu on the 3D world.
I am using this code to do a Ray intersection test.
Ray ray = camera.getPickRay(screenX, screenY);
int result = -1;
float distance = -1;
transform.getTranslation(position);
if (Intersector.intersectRayBoundsFast(ray, position, new Vector3(40, 40, 20) ))
Gdx.app.log("RAY", "Table Clicked");
The Scene2d coordinates start from the bottom left corner and in 3D they start from the centre. I used new Vector3(40, 40, 20) as dummy bounds.
java android 3d libgdx game-development
asked Nov 10 '18 at 10:15
Pratik Velani
356
I am rendering a Scene2d UI table on the 3D world using SpriteBatch, projection matrix and PerspectiveCamera
public void render (float delta)
spriteBatch.setProjectionMatrix(projectionMatrix.set(camera.combined).mul(transform));
spriteBatch.begin();
rootTable.draw(spriteBatch, 1.0f);
spriteBatch.end();
The mouse pointer is hidden and locked to the centre of the screen. When a touchUp event is fired, if the mouse is inside the bounding box of the table, I want to calculate the Vector2 position where the mouse was actually clicked inside the table, so I can call the Table.hit function to get the clicked Actor. Also is this the right approach to draw 2D menu on the 3D world.
I am using this code to do a Ray intersection test.
Ray ray = camera.getPickRay(screenX, screenY);
int result = -1;
float distance = -1;
transform.getTranslation(position);
if (Intersector.intersectRayBoundsFast(ray, position, new Vector3(40, 40, 20) ))
Gdx.app.log("RAY", "Table Clicked");
The Scene2d coordinates start from the bottom left corner and in 3D they start from the centre. I used new Vector3(40, 40, 20) as dummy bounds.
java android 3d libgdx game-development
java android 3d libgdx game-development
asked Nov 10 '18 at 10:15
Pratik Velani
356
asked Nov 10 '18 at 10:15
Pratik Velani
356
asked Nov 10 '18 at 10:15
Pratik Velani
356
asked Nov 10 '18 at 10:15
Pratik Velani
356
asked Nov 10 '18 at 10:15
Pratik Velani
356
356
add a comment |
add a comment |
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