Now, just like we need to tell Quorum where to find the code to create a 2D image (a Drawable), in order to draw a 3D shape (or a Model in Quorum), we need to add the use statement: use The template you downloaded or any new game application will already have the use statement for the game library. Loading PrimitivesģD Drawing is very similar to 2D drawing. Below is an image that represents the left-handed coordinate system using a computer monitor. This is important because if we want an object to move closer or farther away, we need to know if we should increase or decrease the z coordinate. Quorum uses the left-handed coordinate system. In the right-handed system, the z-axis is positive toward the user. In the left-handed system, the z-axis is positive away from the user. The difference between the two is the z-axis. In both systems, the y-axis is positive in the up direction and the x-axis is positive to the right. In general, there is a right-hand coordinate system and a left-hand coordinate system. All 3D modeling is based on these three axes, but different programs use them differently. When we add a third measurement for 3D, it runs from the user through the screen, getting farther away (we call this the z-axis). In 2D animation, the position and size of an object on the screen can be explained using two measurements: one horizontal across the center of the screen (the x-axis) and one vertical across the center of the screen (the y-axis). A 2D object has width and height and a 3D object adds depth. 3D objects are called 3D because they have three dimensions. Save Load Embed Output Area Quorum's 3D Coordinate Systemīefore we begin to draw 3D objects in Quorum, we have to understand the 3D space in which our objects will live.
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