BindLocation
U32 = 1 Stored with the buffer slot, see X3DSharedData.
X3DSharedDataBufferDef
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Class Documentation
Edit documentationA shared data buffer slot: a GPU buffer of elements that shaders find by name, such as the light region data and the particle instance data. See
X3DSharedData for registration, filtering, register and
BindLocation.
Shader buffers of every kind look up this list: structured buffers, byte-address buffers and their read-write forms. A read-write buffer in the shader marks the binding as writable.
Properties
DataBufferElementType
U8 = 1 The element type, which sets the element stride:
| Value | Name | Stride |
|---|---|---|
0, 1, 2 |
Scalar | 4 bytes |
3, 4, 5 |
Vector2 | 8 bytes |
6, 7, 8 |
Vector3 | 12 bytes |
9, 10, 11 |
Vector4 | 16 bytes |
12 |
Matrix 4x3 | 48 bytes |
13 |
Matrix 4x4 | 64 bytes |
14 |
Structure | the size of the structure that StructureLink links |
Any other value gives a stride of 0. What distinguishes the values of each group of
three is not yet identified.
PlatformMask
U32 = 0 The platforms on which the slot loads, see X3DSharedData.
ShaderModel
U8 = 0 The renderer mode in which the slot loads, see X3DSharedData.
StructureLink
Hash = "0x0" For DataBufferElementType 14, the structure definition whose size is the element stride.
frequency
U8 = 0 Purpose not yet identified. The client does not read it when it creates the slot.
name
String = "" The name under which shaders find the buffer. Before the lookup, the client strips the suffix _SharedDataBuffer from the name that the shader declares.
register
I32 = -1 If -1, the client binds the buffer per effect. Any other value leaves it out of the effect bindings. See X3DSharedData.