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#pragma once
#include <glad/glad.h>
#include <string>
#include <string_view>
namespace Tags {
/// Vertex element semantics, used to identify the meaning of vertex buffer contents
enum VertexElementSemantic {
/// Position, typically VET_Float3
VES_Position,
/// Blending weights
VES_BlendWeights,
/// Blending indices
VES_BlendIndices,
/// Normal, typically VET_Float3
VES_Normal,
/// Colour, typically VET_Ubyte4
VES_Color1,
/// Secondary colour. Generally free for custom data. Means specular with OpenGL FFP.
VES_Color2,
/// Texture coordinates, typically VET_Float2
VES_Texture_coordinates,
/// Binormal (Y axis if normal is Z)
VES_Binormal,
/// Tangent (X axis if normal is Z)
VES_Tangent,
/// Default semantic
VES_Generic,
VES_COUNT,
};
std::string_view NameOf(VertexElementSemantic semantic);
VertexElementSemantic FindVertexElementSemantic(std::string_view name);
enum VertexElementType {
VET_Float1,
VET_Float2,
VET_Float3,
VET_Float4,
VET_Short2,
VET_Short4,
VET_Ubyte4,
// the following are not universally supported on all hardware:
VET_Double1,
VET_Double2,
VET_Double3,
VET_Double4,
VET_Ushort2,
VET_Ushort4,
VET_Int1,
VET_Int2,
VET_Int3,
VET_Int4,
VET_Uint1,
VET_Uint2,
VET_Uint3,
VET_Uint4,
VET_Byte4, /// signed bytes
VET_NORM_BEGIN,
VET_Byte4Norm = VET_NORM_BEGIN, /// signed bytes (normalized to -1..1)
VET_Ubyte4Norm, /// unsigned bytes (normalized to 0..1)
VET_Short2Norm, /// signed shorts (normalized to -1..1)
VET_Short4Norm,
VET_Ushort2Norm, /// unsigned shorts (normalized to 0..1)
VET_Ushort4Norm,
VET_NORM_END = VET_Ushort4Norm,
};
int SizeOf(VertexElementType type);
bool IsNormalized(VertexElementType type);
enum IndexType {
IT_16Bit,
IT_32Bit,
};
int SizeOf(IndexType type);
std::string_view NameOfGLType(GLenum);
GLenum FindGLType(std::string_view name);
} // namespace Tags
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