![]() ![]() Rendered Pixels Rasterized drawings are displayed on the physical devices. Points Content is rendered to pixels using scale factor. Physical Pixels The content is defined mathematically using point coordinates. render at 3× render at 2×Ī iPhone 6 Plus downsamples the rendered image before displaying it on screen. Physical Device render at 1× downsampling / 1.15 show on device show on device show on device (pixels) (pixels) (pixels) (points) (device pixels) (points) (points) Original iPhone iPhone 6 iPhone 6 Plus 3.5″ 4.7″ 5.5″ 163 PPI 326 PPI 401 PPI points. ![]() This number tells you how many pixels fit into one inch and thus how large the pixels appear in the real world. Rendered Pixels The last step is to show the computed pixels on the physical screen.Įvery screen has pixels-per- inch (PPI) characteristic. Higher scale factors result in higher level of detail.ġ×, 2× and 3×. Point coordinates are multiplied by scale factor to get pixel coordinates. Points Point-based drawings are rendered into pixels. In the original iPhone, points corresponded perfectly to actual pixels on screen, but this is no longer true. Points are abstract units, they only make sense in this mathematical coordinate space. Physical Pixels At the beginning, coordinates of all drawings are specified in We've made an infographic to demystify this.ģ20 × 480 375 × 667 414 × 736 320 × 480 750 × 1334 1242 × 2208 1080 × 1920 3.5″ 4.7″ 5.5″ iPhone 6 Plus has screen with lower pixel resolution than the image rendered in previous step.īefore the image can be displayed on the screen, it must be downsampled (resized) to lower pixel resolution. The new iPhone substantially changes the way graphics are rendered on screen. Few days ago, Apple introduced iPhone 6 Plus. ![]()
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