54 lines
1.0 KiB
C
54 lines
1.0 KiB
C
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#pragma once
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#include <cstdint>
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#include <tuple>
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#include <vector>
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using namespace std;
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#define sizeof_field(_struct, _field) sizeof(((_struct*)0)->_field)
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// 顶点最多关联4个骨骼
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#define MAX_NUM_BONES_PER_VERTEX 4
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struct Vector2 {
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float x;
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float y;
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};
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struct Vector3 {
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float x;
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float y;
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float z;
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};
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struct Vertex {
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struct UClass {
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virtual void BindLayout() = 0;
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};
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};
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struct PosVertex : public Vertex {
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Vector3 Position = {};
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struct UClass : public Vertex::UClass{
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int MemCount = 1;
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tuple<int, int> Position{sizeof_field(PosVertex, Position), offsetof(PosVertex, Position)};
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virtual void BindLayout() {};
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};
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};
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struct TexVertex : public Vertex {
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Vector3 Position = {};
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Vector3 Normal = {};
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Vector2 TexCoords = {};
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};
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struct BoneVertex : public Vertex
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{
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Vector3 Position = {};
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Vector2 TexCoords = {};
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Vector3 Normal = {};
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Vector3 Tangent = {};
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// 骨骼蒙皮数据
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float Weights[MAX_NUM_BONES_PER_VERTEX] = {};
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uint32_t BoneIDs[MAX_NUM_BONES_PER_VERTEX] = {};
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void AddBoneData(uint32_t boneID, float weight) {};
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};
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