com.luciad.view.lightspeed.services.vertexarray

LuciadLightspeedInterface ILspVertexAttribute

public interface ILspVertexAttribute

Interface describing a vertex attribute as stored in a vertex array.

Since:

2012.0

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	ILspVertexAttribute.AttributeSemantics Describes the semantics of a vertex attribute.
static class	ILspVertexAttribute.AttributeType Describes the primitive type used to store vertex attribute values.

Method Summary

Modifier and Type	Method and Description
int	getComponentCount() Returns the number of components used by this vertex attribute.
String	getName() Returns the name of this vertex attribute.
int	getOffset() Returns the offset (in bytes) from the start of the vertex array data buffer to the first occurrence of this vertex attribute.
ILspVertexAttribute.AttributeSemantics	getSemantics() Returns the semantics of this vertex attribute.
int	getStride() Returns the distance (in bytes) between two consecutive elements of this vertex attribute in memory.
ILspVertexAttribute.AttributeType	getType() Returns the primitive type of this vertex attribute.
boolean	isInterleaved() Returns true if the data of this attribute is interleaved with that of other attributes.
boolean	isNormalized() For non-floating point attributes, indicates whether the attribute's values should be normalized or not.

Method Detail

getName

String getName()

Returns the name of this vertex attribute.

Returns:

the name of this vertex attribute

getSemantics

ILspVertexAttribute.AttributeSemantics getSemantics()

Returns the semantics of this vertex attribute.

Returns:

the semantics of this vertex attribute

getType

ILspVertexAttribute.AttributeType getType()

Returns the primitive type of this vertex attribute.

Returns:

the primitive type of this vertex attribute

getComponentCount

int getComponentCount()

Returns the number of components used by this vertex attribute. For instance, normal vectors typically have 3 components (X, Y and Z).

Returns:

the number of components used by this vertex attribute

getStride

int getStride()

Returns the distance (in bytes) between two consecutive elements of this vertex attribute in memory.

Returns:

the distance (in bytes) between two consecutive elements of this vertex attribute in memory

getOffset

int getOffset()

Returns the offset (in bytes) from the start of the vertex array data buffer to the first occurrence of this vertex attribute.

Returns:

the offset (in bytes) from the start of the vertex array data buffer to the first occurrence of this vertex attribute

isInterleaved

boolean isInterleaved()

Returns true if the data of this attribute is interleaved with that of other attributes. Otherwise, the data for each vertex attribute is stored as a continuous block.

Returns:

true if the data for this vertex attribute is stored in an interleaved fashion

isNormalized

boolean isNormalized()

For non-floating point attributes, indicates whether the attribute's values should be normalized or not. For a byte attribute, for example, setting this property to true would result in values in [0, 1] going to the vertex shader, whereas setting the property to false would pass on the unmodified values in the [0, 255] range.

Returns:

whether this attribute should be normalized