Semantics

The following semantics can be specified in HCSL:

attribute

Type	Semantic Name	Description
vec3	VS_POSITION	Vertex Coordinates
vec3	VS_NORMAL	Normal
vec3	VS_TANGENT	Tangent
vec4	VS_COLOR	Vertex Color 1
vec4	VS_COLOR2	Vertex Color 2
vec2	VS_UV	UV1
vec2	VS_UV2	UV2
vec2	VS_UV3	UV3
vec4	VS_BLENDINDEX	Bone Index
vec4	VS_BLENDWEIGHT	Bone Weight
float	VS_INSTANCEID	Instance ID (for instance rendering)

output

Type	Semantic Name	Description	Required
vec4	VS_OUT_POSITION	Can be specified in the vertex shader. Output vertex position	Required
vec4	FS_COLOR	Can be specified in the fragment shader. Output color	Required
float	FS_DEPTH	Can be specified in the fragment shader. Output depth	Optional

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