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Changed structure for program, segregated asset types structs

This commit is contained in:
Xiao Qi 2022-11-19 23:02:59 +08:00
parent 456167e9f0
commit c5f7b22515
11 changed files with 3308 additions and 5223 deletions
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2
.gitignore vendored
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@ -358,3 +358,5 @@ Premake/
*.sln
Dependencies/
*.shmodel

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Raccoon.gltf Normal file
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Racoon.shmodel
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racoon.gltf
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271
src/Libraries/MeshCompiler.cpp
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@ -11,12 +11,13 @@
* of DigiPen Institute of Technology is prohibited.
*****************************************************************************/
#include "MeshCompiler.h"
#include "MeshWriter.h"
#include <assimp/postprocess.h>
#include <fstream>
#include <iostream>
#include <queue>
#include <stack>
namespace SH_COMP
{
@ -26,23 +27,20 @@ namespace SH_COMP
void MeshCompiler::ProcessNode(aiNode const& node, aiScene const& scene, MeshVectorRef meshes, RigData& rig) noexcept
{
for (size_t i{ 0 }; i < node.mNumMeshes; ++i)
for (auto i{0}; i < node.mNumChildren; ++i)
{
aiMesh* mesh = scene.mMeshes[node.mMeshes[i]];
meshes.emplace_back();
GetMesh(*mesh, meshes.back());
meshes.back().name = node.mName.C_Str();
}
auto const& child {*node.mChildren[i]};
if (std::strcmp(node.mName.C_Str(), "Armature") == 0)
{
BuildArmature(node, rig.root);
}
else
{
for (size_t i{ 0 }; i < node.mNumChildren; ++i)
if (child.mNumMeshes > 0)
{
ProcessNode(*node.mChildren[i], scene, meshes, rig);
aiMesh* mesh = scene.mMeshes[child.mMeshes[0]];
meshes.emplace_back();
GetMesh(*mesh, meshes.back());
meshes.back().name = child.mName.C_Str();
}
else
{
BuildArmature(child, rig);
}
}
}
@ -167,150 +165,18 @@ namespace SH_COMP
}
}
void MeshCompiler::WriteMeshHeader(std::ofstream& file, MeshDataHeader const& header)
uint32_t MeshCompiler::RegisterNewNode(aiNode const& node, RigData& rig) noexcept
{
file.write(
reinterpret_cast<char const*>(&header),
sizeof(MeshDataHeader)
);
}
auto const result = rigNodeIDCounter++;
void MeshCompiler::WriteMeshData(std::ofstream& file, MeshDataHeader const& header, MeshData const& asset)
{
auto const vertexVec3Byte{ sizeof(SHVec3) * header.vertexCount };
auto const vertexVec2Byte{ sizeof(SHVec2) * header.vertexCount };
file.write(
asset.name.c_str(),
header.charCount
rig.nodeDataCollection[result].name = node.mName.C_Str();
std::memcpy(
&rig.nodeDataCollection[result].transform,
&node.mTransformation,
sizeof(SHMat4)
);
file.write(
reinterpret_cast<char const*>(asset.vertexPosition.data()),
vertexVec3Byte
);
file.write(
reinterpret_cast<char const*>(asset.vertexTangent.data()),
vertexVec3Byte
);
file.write(
reinterpret_cast<char const*>(asset.vertexNormal.data()),
vertexVec3Byte
);
file.write(
reinterpret_cast<char const*>(asset.texCoords.data()),
vertexVec2Byte
);
file.write(
reinterpret_cast<char const*>(asset.indices.data()),
sizeof(uint32_t) * header.indexCount
);
}
void MeshCompiler::WriteAnimHeader(FileReference file, AnimDataHeader const& header)
{
auto constexpr intSize = sizeof(uint32_t);
file.write(
reinterpret_cast<char const*>(&header.charCount),
intSize
);
file.write(
reinterpret_cast<char const*>(&header.animNodeCount),
intSize
);
file.write(
reinterpret_cast<char const*>(header.nodeHeaders.data()),
sizeof(AnimNodeInfo) * header.nodeHeaders.size()
);
}
void MeshCompiler::WriteAnimData(FileReference file, AnimDataHeader const& header, AnimData const& data)
{
file.write(
data.name.data(),
header.charCount
);
file.write(
reinterpret_cast<char const*>(&data.duration),
sizeof(double)
);
file.write(
reinterpret_cast<char const*>(&data.ticksPerSecond),
sizeof(double)
);
for (auto i{0}; i < header.animNodeCount; ++i)
{
WriteAnimNode(file, header.nodeHeaders[i], data.nodeChannels[i]);
}
}
void MeshCompiler::WriteAnimNode(FileReference file, AnimNodeInfo const& info, AnimNode const& node)
{
file.write(
node.name.data(),
info.charCount
);
file.write(
reinterpret_cast<char const*>(&node.pre),
sizeof(AnimationBehaviour)
);
file.write(
reinterpret_cast<char const*>(&node.post),
sizeof(AnimationBehaviour)
);
file.write(
reinterpret_cast<char const*>(node.positionKeys.data()),
sizeof(PositionKey) * node.positionKeys.size()
);
file.write(
reinterpret_cast<char const*>(node.rotationKeys.data()),
sizeof(RotationKey) * node.rotationKeys.size()
);
file.write(
reinterpret_cast<char const*>(node.scaleKeys.data()),
sizeof(ScaleKey) * node.scaleKeys.size()
);
}
void MeshCompiler::WriteHeaders(FileReference file, ModelConstRef asset)
{
for (auto const& header : asset.meshHeaders)
{
WriteMeshHeader(file, header);
}
for (auto const& header : asset.animHeaders)
{
WriteAnimHeader(file, header);
}
}
void MeshCompiler::WriteData(FileReference file, ModelConstRef asset)
{
for (auto i {0}; i < asset.meshes.size(); ++i)
{
WriteMeshData(file, asset.meshHeaders[i], asset.meshes[i]);
}
for (auto i {0}; i < asset.anims.size(); ++i)
{
WriteAnimData(file, asset.animHeaders[i], asset.anims[i]);
}
return result;
}
void MeshCompiler::ParseAnimations(aiScene const& scene, std::vector<AnimData>& anims) noexcept
@ -352,27 +218,27 @@ namespace SH_COMP
node.rotationKeys.resize(channelData.mNumRotationKeys);
for (auto k{0}; k < channelData.mNumRotationKeys; ++k)
{
auto const& posKeyData = channelData.mRotationKeys[k];
auto& posKey = node.rotationKeys[k];
auto const& rotKeyData = channelData.mRotationKeys[k];
auto& rotKey = node.rotationKeys[k];
posKey.time = posKeyData.mTime;
posKey.value.x = posKeyData.mValue.x;
posKey.value.y = posKeyData.mValue.y;
posKey.value.z = posKeyData.mValue.z;
posKey.value.w = posKeyData.mValue.w;
rotKey.time = rotKeyData.mTime;
rotKey.value.x = rotKeyData.mValue.x;
rotKey.value.y = rotKeyData.mValue.y;
rotKey.value.z = rotKeyData.mValue.z;
rotKey.value.w = rotKeyData.mValue.w;
}
// Scale Keys
node.scaleKeys.resize(channelData.mNumScalingKeys);
for (auto k{0}; k < channelData.mNumScalingKeys; ++k)
{
auto const& posKeyData = channelData.mScalingKeys[k];
auto& posKey = node.scaleKeys[k];
auto const& scaKeyData = channelData.mScalingKeys[k];
auto& scaKey = node.scaleKeys[k];
posKey.time = posKeyData.mTime;
posKey.value.x = posKeyData.mValue.x;
posKey.value.y = posKeyData.mValue.y;
posKey.value.z = posKeyData.mValue.z;
scaKey.time = scaKeyData.mTime;
scaKey.value.x = scaKeyData.mValue.x;
scaKey.value.y = scaKeyData.mValue.y;
scaKey.value.z = scaKeyData.mValue.z;
}
}
}
@ -380,16 +246,17 @@ namespace SH_COMP
void MeshCompiler::LoadFromFile(AssetPath path, ModelAsset& asset) noexcept
{
const aiScene* scene = aiImporter.ReadFile(path.string().c_str(),
aiProcess_Triangulate // Make sure we get triangles rather than nvert polygons
| aiProcess_GenUVCoords // Convert any type of mapping to uv mapping
| aiProcess_TransformUVCoords // preprocess UV transformations (scaling, translation ...)
| aiProcess_FindInstances // search for instanced meshes and remove them by references to one master
| aiProcess_CalcTangentSpace // calculate tangents and bitangents if possible
| aiProcess_JoinIdenticalVertices // join identical vertices/ optimize indexing
| aiProcess_FindInvalidData // detect invalid model data, such as invalid normal vectors
| aiProcess_FlipUVs // flip the V to match the Vulkans way of doing UVs
| aiProcess_ValidateDataStructure
const aiScene* scene = aiImporter.ReadFile(path.string().c_str(),0
//aiProcess_Triangulate // Make sure we get triangles rather than nvert polygons
//| aiProcess_GenUVCoords // Convert any type of mapping to uv mapping
//| aiProcess_TransformUVCoords // preprocess UV transformations (scaling, translation ...)
//| aiProcess_FindInstances // search for instanced meshes and remove them by references to one master
//| aiProcess_CalcTangentSpace // calculate tangents and bitangents if possible
//| aiProcess_JoinIdenticalVertices // join identical vertices/ optimize indexing
//| aiProcess_FindInvalidData // detect invalid model data, such as invalid normal vectors
//| aiProcess_FlipUVs // flip the V to match the Vulkans way of doing UVs
//| aiProcess_ValidateDataStructure // checks all bones, animations and vertices are linked correctly
//| aiProcess_LimitBoneWeights // Limit number of bones effect vertices to 4
);
if (!scene || !scene->HasMeshes())
@ -398,46 +265,36 @@ namespace SH_COMP
return;
}
ParseAnimations(*scene, asset.anims);
ProcessNode(*scene->mRootNode, *scene, asset.meshes, asset.rig);
ParseAnimations(*scene, asset.anims);
aiImporter.FreeScene();
}
void MeshCompiler::CompileMeshBinary(AssetPath path, ModelAsset const& asset) noexcept
{
std::string newPath{ path.string().substr(0, path.string().find_last_of('.')) };
newPath += MODEL_EXTENSION;
std::ofstream file{ newPath, std::ios::out | std::ios::binary | std::ios::trunc };
if (!file.is_open())
{
std::cout << "Unable to open file for write: " << newPath << std::endl;
return;
}
file.write(
reinterpret_cast<char const*>(&asset.header),
sizeof(asset.header)
);
WriteHeaders(file, asset);
WriteData(file, asset);
file.close();
}
void MeshCompiler::BuildArmature(aiNode const& baseNode, RigData& rig) noexcept
{
std::queue<aiNode const*> nodesQueue;
nodesQueue.push(&baseNode);
RigNode* parent = nullptr;
std::stack<std::pair<RigNode*, aiNode const*>> nodesQueue;
rig.root = new RigNode();
rig.root->idRef = RegisterNewNode(**baseNode.mChildren, rig);
nodesQueue.push({rig.root, *baseNode.mChildren});
while(!nodesQueue.empty())
{
auto& rigNode { *nodesQueue.top().first };
auto const& dataNode { *nodesQueue.top().second };
nodesQueue.pop();
for (auto i{ 0 }; i < dataNode.mNumChildren; ++i)
{
rigNode.children.push_back(new RigNode());
rigNode.children[i]->idRef = RegisterNewNode(*dataNode.mChildren[i], rig);
nodesQueue.push({
rigNode.children[i],
dataNode.mChildren[i]
});
}
}
}
@ -447,7 +304,7 @@ namespace SH_COMP
LoadFromFile(path, *asset);
BuildHeaders(*asset);
CompileMeshBinary(path, *asset);
MeshWriter::CompileMeshBinary(path, *asset);
delete asset;
}

26
src/Libraries/MeshCompiler.h
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@ -1,5 +1,5 @@
/*************************************************************************//**
* \file SHMeshCompiler.h
* \file MeshCompiler.h
* \author Loh Xiao Qi
* \date 30 September 2022
* \brief Library to write data in MeshAsset into binary file for faster
@ -28,8 +28,6 @@ namespace SH_COMP
using MeshVectorRef = std::vector<MeshData>&;
using AnimVectorRef = std::vector<AnimData>&;
using FileReference = std::ofstream&;
using ModelConstRef = ModelAsset const&;
using ModelRef = ModelAsset&;
static Assimp::Importer aiImporter;
@ -39,23 +37,13 @@ namespace SH_COMP
static void GetMesh(aiMesh const& mesh, MeshData& meshData) noexcept;
static void BuildHeaders(ModelRef asset) noexcept;
static void WriteMeshHeader(FileReference file, MeshDataHeader const& header);
static void WriteMeshData(FileReference file, MeshDataHeader const& header, MeshData const& asset);
static void WriteAnimHeader(FileReference file, AnimDataHeader const& header);
static void WriteAnimData(FileReference file, AnimDataHeader const& header, AnimData const& data);
static void WriteAnimNode(FileReference file, AnimNodeInfo const& info, AnimNode const& node);
static void WriteHeaders(FileReference file, ModelConstRef asset);
static void WriteData(FileReference file, ModelConstRef asset);
static void LoadFromFile(AssetPath path, ModelRef asset) noexcept;
static void CompileMeshBinary(AssetPath path, ModelConstRef asset) noexcept;
static void BuildArmature(aiNode const& node, RigData& rig) noexcept;
static void BuildArmature(aiNode const& node, RigData& rig) noexcept;
static uint32_t RegisterNewNode(aiNode const& node, RigData& rig) noexcept;
static void ParseAnimations(aiScene const& scene, std::vector<AnimData>& anims) noexcept;
static void LoadFromFile(AssetPath path, ModelRef asset) noexcept;
public:
static void LoadAndCompile(AssetPath path) noexcept;
};
}
}

187
src/Libraries/MeshWriter.cpp Normal file
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@ -0,0 +1,187 @@
/******************************************************************************
* \file MeshWriter.cpp
* \author Loh Xiao Qi
* \date 19 November 2022
* \brief
*
* \copyright Copyright (c) 2021 Digipen Institute of Technology. Reproduction
* or disclosure of this file or its contents without the prior
* written consent of Digipen Institute of Technology is prohibited.
******************************************************************************/
#include "MeshWriter.h"
#include <fstream>
#include <iostream>
namespace SH_COMP
{
void MeshWriter::WriteMeshHeader(std::ofstream& file, MeshDataHeader const& header)
{
file.write(
reinterpret_cast<char const*>(&header),
sizeof(MeshDataHeader)
);
}
void MeshWriter::WriteMeshData(std::ofstream& file, MeshDataHeader const& header, MeshData const& asset)
{
auto const vertexVec3Byte{ sizeof(SHVec3) * header.vertexCount };
auto const vertexVec2Byte{ sizeof(SHVec2) * header.vertexCount };
file.write(
asset.name.c_str(),
header.charCount
);
file.write(
reinterpret_cast<char const*>(asset.vertexPosition.data()),
vertexVec3Byte
);
file.write(
reinterpret_cast<char const*>(asset.vertexTangent.data()),
vertexVec3Byte
);
file.write(
reinterpret_cast<char const*>(asset.vertexNormal.data()),
vertexVec3Byte
);
file.write(
reinterpret_cast<char const*>(asset.texCoords.data()),
vertexVec2Byte
);
file.write(
reinterpret_cast<char const*>(asset.indices.data()),
sizeof(uint32_t) * header.indexCount
);
}
void MeshWriter::WriteAnimHeader(FileReference file, AnimDataHeader const& header)
{
auto constexpr intSize = sizeof(uint32_t);
file.write(
reinterpret_cast<char const*>(&header.charCount),
intSize
);
file.write(
reinterpret_cast<char const*>(&header.animNodeCount),
intSize
);
file.write(
reinterpret_cast<char const*>(header.nodeHeaders.data()),
sizeof(AnimNodeInfo) * header.nodeHeaders.size()
);
}
void MeshWriter::WriteAnimData(FileReference file, AnimDataHeader const& header, AnimData const& data)
{
file.write(
data.name.data(),
header.charCount
);
file.write(
reinterpret_cast<char const*>(&data.duration),
sizeof(double)
);
file.write(
reinterpret_cast<char const*>(&data.ticksPerSecond),
sizeof(double)
);
for (auto i{0}; i < header.animNodeCount; ++i)
{
WriteAnimNode(file, header.nodeHeaders[i], data.nodeChannels[i]);
}
}
void MeshWriter::WriteAnimNode(FileReference file, AnimNodeInfo const& info, AnimNode const& node)
{
file.write(
node.name.data(),
info.charCount
);
file.write(
reinterpret_cast<char const*>(&node.pre),
sizeof(AnimationBehaviour)
);
file.write(
reinterpret_cast<char const*>(&node.post),
sizeof(AnimationBehaviour)
);
file.write(
reinterpret_cast<char const*>(node.positionKeys.data()),
sizeof(PositionKey) * node.positionKeys.size()
);
file.write(
reinterpret_cast<char const*>(node.rotationKeys.data()),
sizeof(RotationKey) * node.rotationKeys.size()
);
file.write(
reinterpret_cast<char const*>(node.scaleKeys.data()),
sizeof(ScaleKey) * node.scaleKeys.size()
);
}
void MeshWriter::WriteHeaders(FileReference file, ModelConstRef asset)
{
for (auto const& header : asset.meshHeaders)
{
WriteMeshHeader(file, header);
}
for (auto const& header : asset.animHeaders)
{
WriteAnimHeader(file, header);
}
}
void MeshWriter::WriteData(FileReference file, ModelConstRef asset)
{
for (auto i {0}; i < asset.meshes.size(); ++i)
{
WriteMeshData(file, asset.meshHeaders[i], asset.meshes[i]);
}
for (auto i {0}; i < asset.anims.size(); ++i)
{
WriteAnimData(file, asset.animHeaders[i], asset.anims[i]);
}
}
void MeshWriter::CompileMeshBinary(AssetPath path, ModelAsset const& asset) noexcept
{
std::string newPath{ path.string().substr(0, path.string().find_last_of('.')) };
newPath += MODEL_EXTENSION;
std::ofstream file{ newPath, std::ios::out | std::ios::binary | std::ios::trunc };
if (!file.is_open())
{
std::cout << "Unable to open file for write: " << newPath << std::endl;
return;
}
file.write(
reinterpret_cast<char const*>(&asset.header),
sizeof(asset.header)
);
WriteHeaders(file, asset);
WriteData(file, asset);
file.close();
}
}

35
src/Libraries/MeshWriter.h Normal file
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@ -0,0 +1,35 @@
/******************************************************************************
* \file MeshWriter.h
* \author Loh Xiao Qi
* \date 19 November 2022
* \brief
*
* \copyright Copyright (c) 2021 Digipen Institute of Technology. Reproduction
* or disclosure of this file or its contents without the prior
* written consent of Digipen Institute of Technology is prohibited.
******************************************************************************/
#pragma once
#include "AssetMacros.h"
#include "Types/ModelAsset.h"
namespace SH_COMP
{
struct MeshWriter
{
using FileReference = std::ofstream&;
using ModelConstRef = ModelAsset const&;
static void WriteMeshHeader(FileReference file, MeshDataHeader const& header);
static void WriteMeshData(FileReference file, MeshDataHeader const& header, MeshData const& asset);
static void WriteAnimHeader(FileReference file, AnimDataHeader const& header);
static void WriteAnimData(FileReference file, AnimDataHeader const& header, AnimData const& data);
static void WriteAnimNode(FileReference file, AnimNodeInfo const& info, AnimNode const& node);
static void WriteHeaders(FileReference file, ModelConstRef asset);
static void WriteData(FileReference file, ModelConstRef asset);
static void CompileMeshBinary(AssetPath path, ModelConstRef asset) noexcept;
};
}

2
src/Types/AnimationAsset.h
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@ -19,7 +19,7 @@ namespace SH_COMP
enum class AnimationBehaviour : uint8_t
{
DEFAULT = 0x0,
CONSTNAT = 0x1,
CONSTANT = 0x1,
LINEAR = 0x2,
REPEAT = 0x3
};

4
src/Types/RigAsset.h
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@ -23,12 +23,12 @@ namespace SH_COMP
struct RigNode
{
uint32_t idRef;
std::vector<uint32_t> children;
std::vector<RigNode*> children;
};
struct RigData
{
std::map<uint32_t, RigNodeData> nodeDataCollection;
RigNode root;
RigNode* root;
};
}

2
src/main.cpp
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@ -53,7 +53,7 @@ int main(int argc, char* argv[])
// SH_COMP::MeshCompiler::LoadAndCompile(path);
//}
SH_COMP::MeshCompiler::LoadAndCompile("Racoon.fbx");
SH_COMP::MeshCompiler::LoadAndCompile("Raccoon.gltf");
return 0;
}