A base class for mesh and shader program vertex attributes. More...
#include <kanzi/core.ui/graphics3d/graphics_enums.hpp>
Public Types | |
enum | Semantic { SemanticPosition, SemanticNormal, SemanticTangent, SemanticTextureCoordinate, SemanticColor, SemanticWeight, SemanticMatrixPalette, SemanticCount, SemanticCustom, SemanticInvalid } |
Vertex attribute enumeration for engine. More... | |
Public Member Functions | |
VertexAttribute () | |
Constructor. More... | |
VertexAttribute (string_view name, Semantic semantic, unsigned int semanticIndex) | |
Constructor. More... | |
Public Attributes | |
string | name |
Name of the attribute. Not currently used. More... | |
Semantic | semantic |
Attribute semantic. More... | |
unsigned int | semanticIndex |
Semantic index. More... | |
Friends | |
void | swap (VertexAttribute &attribute1, VertexAttribute &attribute2) |
bool | operator== (const VertexAttribute &attribute1, const VertexAttribute &attribute2) |
Comparison operator. More... | |
bool | operator!= (const VertexAttribute &attribute1, const VertexAttribute &attribute2) |
Comparison operator. More... | |
A base class for mesh and shader program vertex attributes.
Vertex attributes are used in model data (meshes) and material types (shader programs). Draw calls that are sent to graphics device for execution must have, among other things, both mesh and shader program attributes setup properly. VertexAttribute is a base class for MeshVertexAttribute and ShaderVertexAttribute. VertexAttribute contains name, semantic and semantic index. Derived classes MeshVertexAttribute and ShaderVertexAttribute contain additional information that is specific to mesh / shader.
Each mesh has a number of attributes, which are repeated for every vertex. For example, a mesh can have attributes such position, normal and texture coordinate. Meshes provide values for each attribute for each vertex. Shaders consume some or all of the attributes provided by mesh.
Vertex attribute enumeration for engine.
Enumerator | |
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SemanticPosition |
Position. |
SemanticNormal |
Normal. |
SemanticTangent |
Tangent. |
SemanticTextureCoordinate |
Texture coordinate. |
SemanticColor |
Color. |
SemanticWeight |
Weight for matrix palette. |
SemanticMatrixPalette |
Matrix palette. |
SemanticCount |
Number of fixed vertex attribute semantics. |
SemanticCustom |
Custom attribute semnatic. |
SemanticInvalid |
Invalid semantic. |
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inlineexplicit |
Constructor.
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inlineexplicit |
Constructor.
name | Name for vertex attribute. |
semantic | Semantic for vertex attribute. |
semanticIndex | Semantic index for vertex attribute. |
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friend |
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friend |
Comparison operator.
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friend |
Comparison operator.
string kanzi::VertexAttribute::name |
Name of the attribute. Not currently used.
Semantic kanzi::VertexAttribute::semantic |
Attribute semantic.
unsigned int kanzi::VertexAttribute::semanticIndex |
Semantic index.