You use graphical editors for creating sprites, and then use those sprites in scenes that simulate game physics. SpriteKit provides the tools and methods for creating and rendering and animating textured images, or sprites. Core Animation is implemented by the Quartz Core framework ( amework) (for more information, see Core Animation). It defines a hierarchical view-like abstraction that mirrors a hierarchy of views and is used to perform complex animations of user interfaces. Core Animation enables your app to create fluid animations using advanced compositing effects. It also implements the windowing system for OS X and provides low-level services such as event routing and cursor management (for more information, see Core Graphics).Ĭore Animation. It provides rendering support for 2D content and combines a rich imaging model with on-the-fly rendering, compositing, and antialiasing of content. Quartz is at the heart of the OS X graphics and windowing environment. The Core Graphics framework is in the Application Services umbrella framework.
Mac for media and graphics pdf#
These capabilities include path-based drawing, painting with transparency, shading, drawing of shadows, transparency layers, color management, antialiased rendering, and PDF document generation. Core Graphics (also known as Quartz 2D) offers native 2D vector- and image-based rendering capabilities that are resolution- and device-independent. By design, Cocoa drawing integrates well with the other graphics and drawing technologies listed next.Ĭore Graphics ( amework). In addition to AppKit (specifically, its Cocoa drawing interface), there are several other important frameworks for graphics and drawing. Other Frameworks for Graphics and Drawing The Metal framework is described in Metal Programming Guide, Metal Shading Language Guide, and the associated references. With a streamlined API, precompiled shaders, and support for efficient multi-threading, Metal can take your game or graphics app to the next level of performance and capability. Metal provides the lowest-overhead access to the GPU, enabling you to maximize the graphics and compute potential of your app.
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For more information on how to draw using Cocoa features, see Cocoa Drawing Guide. The AppKit framework is described in AppKit. You can even mix Quartz 2D drawing calls (and drawing calls from other system graphics technologies) with Cocoa calls in your code. Drawing calls made from Cocoa are composited along with all other Quartz 2D content. It supports drawing in both standard and custom color spaces and it supports content manipulations using graphics transforms. Cocoa provides support for drawing primitive shapes such as lines, rectangles, ovals, arcs, and Bezier paths. The AppKit framework provides object-oriented wrappers for many of the features found in Quartz 2D. To learn how to make sure that your app looks good on a high-resolution display, see High Resolution Guidelines for OS X. Many of these technologies provide support for making your rendered content look good at different screen resolutions. OS X offers several system technologies for graphics and drawing. The following sections describe some of these technologies for summaries of all technologies see Media Layer Frameworks. In these situations, you can take advantage of the powerful OS X graphics technologies.
Occasionally, you might need to go beyond off-the-shelf views and simple graphics. In this way, you let the system do the work of rendering the app’s UI appropriately for the current display. The simplest, most efficient, and most common way to ensure high-quality graphics in your app is to use the standard views and controls of the AppKit framework, along with prerendered images in different resolutions. And on a Retina display, users are more aware than ever of your app’s graphics. qt)Ī distinctive quality of any OS X app is high-quality graphics in its user interface. PICT, BMP, GIF, JPEG, TIFF, PNG, DIB, ICO, EPS, PDFĪAC, AIFF, WAVE, uLaw, AC3, MPEG-3, MPEG-4 (. Table 3-1 Partial list of formats supported in OS X
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