GFX.BuiltinFeature¶
Name | - | Description | Default | Type |
---|---|---|---|---|
<input> |
||||
<output> |
GFX.Feature |
|||
Id |
Builtin feature id. | BuiltinFeatureId.Transform |
BuiltinFeatureId |
Details¶
This shard generates features with preset behavior, the behavior depends on the Id.
Built-in Feature Ids¶
Transform¶
This Feature implements basic world/view/projection transform.
Here are the entry points that are defined and can be added as dependencies by your own features.
initLocalPosition
(vertex)¶
Sets the localPosition
(float4) global from the vertex position.
initScreenPosition
(vertex)¶
Sets the screenPosition
global (float4) to the transformed vertex position (=proj*view*world*<vertex>
).
writePosition
(vertex)¶
Writes screenPosition
global to position
output.
initWorldNormal
(vertex)¶
Transforms the object normal and writes the transformed result into the worldNormal
global (float3).
If the mesh doesn't have vertex normals, the normal will be (0.0, 0.0, 1.0)
.
writeNormal
(vertex)¶
Writes worldNormal
global into worldNormal
output.
BaseColor¶
This Feature adds a per-object shader parameter with the name baseColor
and a texture parameter with the same name.
Here are the entry points that are defined and can be added as dependencies by your own features.
initColor
(vertex)¶
This vertex shader entry point sets up the color
global (float4) with the vertex color from the mesh if it has been set. If the mesh doesn't have a vertex color, it'll be white with alpha 1.0.
writeColor
(vertex)¶
Writes color
global to color
output.
readColor
(fragment)¶
Reads color
input into color
global (float4).
textureColor
(fragment)¶
Reads the texture color from the baseColor
texture and multiplies it with the current color
global. It does nothing if the texture does not exist.
writeColor
(fragment)¶
Writes color
global to color
output. color
is the default name for the main color output from the fragment shader.
VertexColorFromNormal¶
This Feature outputs the mesh normal as a per-vertex color output.
Use for debugging.
Wireframe¶
This Feature changes how objects are rendered so that their edges are highlighted. Very basic, with a fixed edge width and color.
Use for debugging.
Velocity¶
This Feature outputs per-object velocity into a velocity
output and velocity
global. For usage with effects that require a velocity buffer such as motion blur or temporal anti-aliasing.