Do you have to map a viewport to a render target?
It is common for the viewport to map to a render target but it is not necessary; additionally, the viewport does not have to have the same size or position as the render target. You can create an array of viewports, but only one can be applied to a primitive output from the geometry shader.
How many viewports can be bound to rasterizer?
The maximum number of viewports (and scissor rectangles) that can be bound to the rasterizer stage at any one time is 16 (specified by D3D11_VIEWPORT_AND_SCISSORRECT_OBJECT_COUNT_PER_PIPELINE ). A scissor rectangle gives you another opportunity to reduce the number of pixels that will be sent to the output merger stage.
Which is the default viewport in geometry shader?
The default is always the first viewport (or scissor rectangle) in the array. To perform a per-primitive selection of the viewport in the geometry shader, specify the ViewportArrayIndex semantic on the appropriate GS output component in the GS output signature declaration.
Which is the default viewport in the pipeline?
The pipeline uses a default viewport (and scissor rectangle, discussed in the next section) during rasterization. The default is always the first viewport (or scissor rectangle) in the array.
Where is the sticky footer in the viewport?
The visual viewport is the currently visible portion of the layout viewport. If you scroll down, you are changing the contents of the visual viewport and bringing the bottom of the layout viewport into view, displaying the sticky footer, which will then stay stuck at the bottom.
How is the size of a viewport determined?
The size of the viewport depends on the size of the screen, whether the browser is in fullscreen mode or not, and whether or not the user zoomed in. Content outside the viewport, such as the See Also section in this document, is likely to not be visible onscreen until scrolled into view.
How does a viewport work in a mobile browser?
The mobile browser’s viewport is the area of the window in which web content can be seen, which is not necessarily the same size as the rendered page. Mobile browsers render pages in a virtual window or viewport, generally at 980px, which is usually wider than the screen, and then shrink the rendered result down so it can all be seen at once.