DefaultVertex.h

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#pragma once
 
#include "../core/math_types.h"
#include "../core/MeshLayout.h"
 
namespace candlewick {
 
struct alignas(16) DefaultVertex {
  GpuVec3 pos;
  alignas(16) GpuVec3 normal;
  alignas(16) GpuVec4 color;
  alignas(16) GpuVec3 tangent;
};
static_assert(IsVertexType<DefaultVertex>, "");
 
template <> struct VertexTraits<DefaultVertex> {
  static auto layout() {
    return MeshLayout{}
        .addBinding(0, sizeof(DefaultVertex))
        .addAttribute(VertexAttrib::Position, 0,
                      SDL_GPU_VERTEXELEMENTFORMAT_FLOAT3,
                      offsetof(DefaultVertex, pos))
        .addAttribute(VertexAttrib::Normal, 0,
                      SDL_GPU_VERTEXELEMENTFORMAT_FLOAT3,
                      offsetof(DefaultVertex, normal))
        .addAttribute(VertexAttrib::Color0, 0,
                      SDL_GPU_VERTEXELEMENTFORMAT_FLOAT4,
                      offsetof(DefaultVertex, color))
        .addAttribute(VertexAttrib::Tangent, 0,
                      SDL_GPU_VERTEXELEMENTFORMAT_FLOAT3,
                      offsetof(DefaultVertex, tangent));
  }
};
 
} // namespace candlewick