public class VertexBufferObjectSubData extends Object implements VertexData
A VertexData
implementation based on OpenGL vertex buffer objects.
If the OpenGL ES context was lost you can call invalidate()
to recreate a new OpenGL vertex buffer object.
The data is bound via glVertexAttribPointer() according to the attribute aliases specified via VertexAttributes
in the constructor.
VertexBufferObjects must be disposed via the dispose()
method when no longer needed
Constructor and Description |
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VertexBufferObjectSubData(boolean isStatic,
int numVertices,
VertexAttribute... attributes)
Constructs a new interleaved VertexBufferObject.
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VertexBufferObjectSubData(boolean isStatic,
int numVertices,
VertexAttributes attributes)
Constructs a new interleaved VertexBufferObject.
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Modifier and Type | Method and Description |
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void |
bind(ShaderProgram shader)
Binds this VertexBufferObject for rendering via glDrawArrays or glDrawElements
|
void |
bind(ShaderProgram shader,
int[] locations)
Binds this VertexData for rendering via glDrawArrays or glDrawElements.
|
void |
dispose()
Disposes of all resources this VertexBufferObject uses.
|
VertexAttributes |
getAttributes() |
FloatBuffer |
getBuffer()
Returns the underlying FloatBuffer and marks it as dirty, causing the buffer contents to be uploaded on the next call to
bind.
|
int |
getBufferHandle()
Returns the VBO handle
|
int |
getNumMaxVertices() |
int |
getNumVertices() |
void |
invalidate()
Invalidates the VertexBufferObject so a new OpenGL buffer handle is created.
|
void |
setVertices(float[] vertices,
int offset,
int count)
Sets the vertices of this VertexData, discarding the old vertex data.
|
void |
unbind(ShaderProgram shader)
Unbinds this VertexBufferObject.
|
void |
unbind(ShaderProgram shader,
int[] locations)
Unbinds this VertexData.
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void |
updateVertices(int targetOffset,
float[] vertices,
int sourceOffset,
int count)
Update (a portion of) the vertices.
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public VertexBufferObjectSubData(boolean isStatic, int numVertices, VertexAttribute... attributes)
isStatic
- whether the vertex data is static.numVertices
- the maximum number of verticesattributes
- the VertexAttributes
.public VertexBufferObjectSubData(boolean isStatic, int numVertices, VertexAttributes attributes)
isStatic
- whether the vertex data is static.numVertices
- the maximum number of verticesattributes
- the VertexAttribute
s.public VertexAttributes getAttributes()
getAttributes
in interface VertexData
VertexAttributes
as specified during construction.public int getNumVertices()
getNumVertices
in interface VertexData
public int getNumMaxVertices()
getNumMaxVertices
in interface VertexData
public FloatBuffer getBuffer()
VertexData
VertexData.setVertices(float[], int, int)
; Any modifications made to the Buffer
*after* the call to bind will not automatically be uploaded.getBuffer
in interface VertexData
public void setVertices(float[] vertices, int offset, int count)
VertexData
VertexAttributes
.
This can be called in between calls to bind and unbind. The vertex data will be updated instantly.
setVertices
in interface VertexData
vertices
- the vertex dataoffset
- the offset to start copying the data fromcount
- the number of floats to copypublic void updateVertices(int targetOffset, float[] vertices, int sourceOffset, int count)
VertexData
updateVertices
in interface VertexData
vertices
- the vertex datasourceOffset
- the offset to start copying the data fromcount
- the number of floats to copypublic void bind(ShaderProgram shader)
bind
in interface VertexData
shader
- the shaderpublic void bind(ShaderProgram shader, int[] locations)
VertexData
bind
in interface VertexData
locations
- array containing the attribute locations.public void unbind(ShaderProgram shader)
unbind
in interface VertexData
shader
- the shaderpublic void unbind(ShaderProgram shader, int[] locations)
VertexData
unbind
in interface VertexData
locations
- array containing the attribute locations.public void invalidate()
invalidate
in interface VertexData
public void dispose()
dispose
in interface VertexData
dispose
in interface Disposable
public int getBufferHandle()
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