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feat: multiple index buffers per mesh support

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MihailRis 2025-07-24 21:40:00 +03:00
parent 6debc92ae5
commit 4a6ccf4847
7 changed files with 81 additions and 43 deletions
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34
src/graphics/core/Mesh.hpp
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@ -1,5 +1,7 @@
#pragma once
#include <vector>
#include "MeshData.hpp"
@ -8,25 +10,32 @@ struct MeshStats {
static int drawCalls;
};
struct IndexBufferData {
const uint32_t* indices;
size_t indicesCount;
};
template <typename VertexStructure>
class Mesh {
struct IndexBuffer {
unsigned int ibo;
size_t indexCount;
};
unsigned int vao;
unsigned int vbo;
unsigned int ibo;
std::vector<IndexBuffer> ibos;
size_t vertexCount;
size_t indexCount;
public:
explicit Mesh(const MeshData<VertexStructure>& data);
Mesh(
const VertexStructure* vertexBuffer,
size_t vertices,
const uint32_t* indexBuffer,
size_t indices
std::vector<IndexBufferData> indices
);
Mesh(const VertexStructure* vertexBuffer, size_t vertices)
: Mesh<VertexStructure>(vertexBuffer, vertices, nullptr, 0) {};
: Mesh<VertexStructure>(vertexBuffer, vertices, {}) {};
~Mesh();
@ -34,18 +43,21 @@ public:
/// attributes
/// @param vertexBuffer vertex data buffer
/// @param vertexCount number of vertices in new buffer
/// @param indexBuffer indices buffer
/// @param indexCount number of values in indices buffer
/// @param indices indices buffer
void reload(
const VertexStructure* vertexBuffer,
size_t vertexCount,
const uint32_t* indexBuffer = nullptr,
size_t indexCount = 0
const std::vector<IndexBufferData>& indices
);
void reload(const VertexStructure* vertexBuffer, size_t vertexCount) {
static const std::vector<IndexBufferData> indices {};
reload(vertexBuffer, vertexCount, indices);
}
/// @brief Draw mesh with specified primitives type
/// @param primitive primitives type
void draw(unsigned int primitive) const;
/// @param iboIndex index of used element buffer
void draw(unsigned int primitive, int iboIndex = 0) const;
/// @brief Draw mesh as triangles
void draw() const;