Count
U32 = 1 The number of elements. The constant's size is Count times the element size.
X3DSharedConstantDef
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Class Documentation
Edit documentationA shared shader constant inside an
X3DSharedConstantBufferDef. Its size is the size of
its type times Count, and the buffer lays the constants out in list order.
Constants are shared by name. If two buffers declare a constant with the same name, the client keeps one constant that is bound to a place in each buffer.
Properties
PlatformMask
U32 = 0 The platforms on which the constant takes space in its buffer, see X3DSharedData.
SetManually
Bool = false If any constant of a buffer that passes the filters leaves it false, the client keeps a CPU-side copy of that buffer. What else it changes is not yet identified.
ShaderModel
U8 = 0 14.23
The renderer mode in which the constant takes space in its buffer, see X3DSharedData.
StructureLink
Hash = "0x0" 15.7
For type 10, the structure definition whose size is the element size. Other types do not read it.
name
String = "" The name of the constant. Constants with the same name in different buffers are one constant.
register
I32 = -1 Not read when the client creates the buffer.
type
U32 = 0 The element type, which sets the element size:
| Value | Name | Size |
|---|---|---|
0 |
Scalar | 4 bytes |
1 |
Vector2 | 8 bytes |
2 |
Vector3 | 12 bytes |
3 |
Vector4 | 16 bytes |
4 |
Scalar (second set) | 4 bytes |
5 |
Vector2 (second set) | 8 bytes |
6 |
Vector3 (second set) | 12 bytes |
7 |
Vector4 (second set) | 16 bytes |
8 |
Matrix 4x3 | 48 bytes |
9 |
Matrix 4x4 | 64 bytes |
10 |
Structure | the size of the structure that StructureLink links |
Any other value has size 0. What distinguishes 0-3 from 4-7 is not yet
identified.