87 lines
2.2 KiB
C++
87 lines
2.2 KiB
C++
/*
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* LveModel Class
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*
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* Little vulkan engine model class
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*
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* Copyright (C) 2020 by Blurrypiano - https://github.com/blurrypiano/littleVulkanEngine
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*
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* This code is licensed under the MIT license (MIT) (http://opensource.org/licenses/MIT)
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*/
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#pragma once
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#include "lve_device.hpp"
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// libs
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#include <glm/glm.hpp>
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// std
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#include <memory>
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#include <vector>
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namespace lve {
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class LveModel {
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public:
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enum class VertexAttribute { POSITION, NORMAL, COLOR, UV, TANGENT };
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struct Vertex {
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glm::vec3 position;
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glm::vec3 normal;
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glm::vec4 color;
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glm::vec2 uv;
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glm::vec4 tangent; // w component is -1 or 1 and indicates handedness of the tangent basis
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static VkVertexInputBindingDescription getBindingDescription() {
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VkVertexInputBindingDescription bindingDescription{};
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bindingDescription.binding = 0;
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bindingDescription.stride = sizeof(Vertex);
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bindingDescription.inputRate = VK_VERTEX_INPUT_RATE_VERTEX;
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return bindingDescription;
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}
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static std::vector<VkVertexInputAttributeDescription> getAttributeDescriptions(
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const std::vector<VertexAttribute>& attributes);
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bool operator==(const Vertex& other) const {
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return position == other.position && color == other.color && uv == other.uv &&
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normal == other.normal && tangent == other.tangent;
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}
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};
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class Builder {
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public:
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std::vector<Vertex> vertices{};
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std::vector<uint32_t> indices{};
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void loadModel(std::string filepath);
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};
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LveModel(LveDevice& device, Builder& builder);
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~LveModel() { cleanup(); }
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LveModel(const LveModel&) = delete;
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void operator=(const LveModel&) = delete;
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void draw(VkCommandBuffer commandBuffer);
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void bind(VkCommandBuffer commandBuffer);
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void swapChainReset(){};
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static std::unique_ptr<LveModel> loadModelFromFile(LveDevice& device, std::string filepath);
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private:
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LveDevice& device_;
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VkBuffer vertexBuffer_;
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VkDeviceMemory vertexBufferMemory_;
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uint32_t vertexCount_;
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VkBuffer indexBuffer_;
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VkDeviceMemory indexBufferMemory_;
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uint32_t indexCount_;
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void createVertexBuffer(Builder& builder);
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void createIndexBuffer(Builder& builder);
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void cleanup();
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};
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} // namespace lve
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