I3DProperties3 Interface

Provides additional access to members that control three-dimensional properties.

Product Availability

Description

This interface is new at ArcGIS 9.3. It supersedes I3DProperties and I3DProperties2.

I3DProperties3 introduces the AlphaThreshold property to get or set transparency thresholds for a layer.

The JPEG compression is the default compression type in memory and persistence. DXT is optional at runtime; it takes advantage of the graphic card capability and may improve runtime performance significantly.

TextureDownsamplingFactor (double type) ranges from 0.0 to 10.0, with 1.0 applying no down-scaling and 10.0 maximum down-scaling. The value set by the user will be snapped to the next lower power of 2 because OpenGL can only take a power of 2 number for the texture dimension. Generally, the larger the number, the more texture down-scaling, meaning coarser texture resolution, hence the better navigation performance, due to less memory consumption by textures.

Members

	All Properties Methods Inherited Non-inherited	Description
	AlphaThreshold	Alpha threshold for transparency.
	Apply3DProperties	Applies 3D properties.
	BaseExpressionString	The base expression string.
	BaseName	The name of the base surface.
	BaseOption	The base option.
	BaseSurface	The base surface.
	DepthPriorityValue	The drawing priority to be applied to a layer when in the same location than others.
	ExtrusionExpressionString	The extrusion expression string.
	ExtrusionType	The extrusion type.
	FaceCulling	The face culling mode.
	Illuminate	Indicates if areal features are illuminated.
	MaxRasterColumns	The maximum number of columns for a raster elevation grid.
	MaxRasterRows	The maximum number of rows for a raster elevation grid.
	MaxTextureMemory	The maximum texture memory a layer can use.
	OffsetExpressionString	The offset expression string.
	RenderMode	The rendering mode.
	RenderRefreshRate	The rendering refresh rate.
	RenderVisibility	The render visibility option.
	SmoothShading	Indicates if smooth shading is enabled.
	TextureCompressionType	The current texture compression type.
	TextureDisplayType	The current texture display type.
	TextureDownsamplingFactor	The texture downsampling factor.
	ZFactor	The z factor.

Inherited Interfaces

CoClasses that implement I3DProperties3