Buffer QML Type

Creates or references a color buffer to be used for a pass of an Effect. 更多...

import 语句：

import QtQuick3D

所有成员列表，包括继承成员

特性

bufferFlags : enumeration
format : enumeration
name : string
sizeMultiplier : real
textureCoordOperation : enumeration
textureFilterOperation : enumeration

详细描述

A Buffer can be used to create intermediate buffers to share data between render passes in an Effect .

注意： 若 name property of the Buffer is empty, it will reference the default output texture of the render pass.

特性文档编制

bufferFlags : enumeration

Specifies the buffer allocation flags. The default is Buffer.None.

常量	描述
`Buffer.None`	No special behavior.
`Buffer.SceneLifetime`	The buffer is allocated for the whole lifetime of the scene.

format : enumeration

Specifies the texture format. The default value is Buffer.RGBA8.

常量	值
`Buffer.RGBA8`
`Buffer.RGBA16F`
`Buffer.RGBA32F`
`Buffer.R8`
`Buffer.R16`
`Buffer.R16F`
`Buffer.R32F`

name : string

Specifies the name of the buffer.

注意： When this property is empty, the Buffer will refer to the default output texture of the render pass instead of allocating a buffer. This can be useful to override certain settings of the output, such as the texture format, without introducing a new, separate intermediate texture.

sizeMultiplier : real

Specifies the size multiplier of the buffer. For instance, a value of 1.0 creates a buffer with the same size as the effect's input texture while 0.5 creates buffer where both width and height is half as big. The default value is 1.0.

textureCoordOperation : enumeration

Specifies the behavior for texture coordinates when sampling outside the [0, 1] range. The default is Buffer.ClampToEdge.

常量	描述
`Buffer.ClampToEdge`	Clamp coordinates to the edges.
`Buffer.Repeat`	Wrap the coordinates at the edges to tile the texture.
`Buffer.MirroredRepeat`	Wrap the coordinate at the edges, but mirror the texture when tiling it.

textureFilterOperation : enumeration

Specifies the texture filtering mode when sampling the contents of the Buffer. The default value is Buffer.Linear.

常量	描述
`Buffer.Nearest`	Use nearest-neighbor filtering.
`Buffer.Linear`	Use linear filtering.