BindLocation
U32 = 1 The shader stage of a sampler with a fixed register, see X3DSharedData.
X3DSharedSamplerDef
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Class Documentation
Edit documentationA shared sampler: a GPU sampler state that shaders and shared textures find by name.
See X3DSharedData for registration, filtering, register and
BindLocation.
Filter. The client builds the filter from filterMin, filterMag, mipFilter,
maxAnisotropy and CompareOp. If maxAnisotropy is above 1 and filterMin and
filterMag are both linear, the sampler filters anisotropically. If CompareOp is not
1, the sampler is a comparison sampler.
Properties
BorderColor
Color = [0, 0, 0, 255] The colour that address mode 3 (Border) returns outside the texture.
CompareOp
U8 = 1 The comparison function of a comparison sampler:
| Value | Name |
|---|---|
0 |
Always |
1 |
Never |
2 |
Less |
3 |
LessEqual |
4 |
Greater |
5 |
GreaterEqual |
6 |
Equal |
7 |
NotEqual |
1 also turns comparison off: the sampler uses the plain filters. Any other value
makes it a comparison sampler.
MaxLod
U32 = 12 The highest mip level that the sampler reads, in whole levels. mipFilter 0 forces it to 0.
MinLod
U32 = 0 The lowest mip level that the sampler reads, in whole levels. 0 is the top mip.
PlatformMask
U32 = 0 The platforms on which the sampler loads, see X3DSharedData.
ShaderModel
U8 = 0 The renderer mode in which the sampler loads, see X3DSharedData.
addressModeU
U8 = 1 Address mode along U:
| Value | Name |
|---|---|
0 |
Wrap |
1 |
Clamp |
2 |
Mirror |
3 |
Border |
Values from 4 up read past the client's table and give an undefined mode.
addressModeV
U8 = 1 Address mode along V. Same values as addressModeU.
addressModeW
U8 = 1 Address mode along W. Same values as addressModeU.
filterMag
U8 = 1 Magnification filter. 1 is linear. Any other value is point.
filterMin
U8 = 1 Minification filter. 1 is linear. Any other value is point.
maxAnisotropy
U8 = 1 The maximum anisotropy. A value above 1 turns on anisotropic filtering when filterMin and filterMag are both linear.
mipFilter
U8 = 2 Filter between mip levels:
| Value | Name | Effect |
|---|---|---|
0 |
None | Point, and MaxLod is forced to 0, so the sampler reads only the top mip |
1 |
Point | Point between mip levels |
2 |
Linear | Linear between mip levels |
Any other value is point.
mipLodBias
I32 = 0 The bias added to the mip level, in whole levels.
name
String = "" The name under which shaders and X3DSharedTextureDef SAMPLER links find the sampler.
register
I32 = -1 If not -1, the slot at which the client binds the sampler once, when it creates it. See X3DSharedData.
type
U8 = 0 Purpose not yet identified. The client does not read it when it creates the sampler.