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Added animation asset class 

Added animation reading from assimp scene

Separated assimp loading from mesh loader in preparation for exe use
This commit is contained in:
Xiao Qi 2022-10-19 18:38:11 +08:00
parent 7e3ca4c45f
commit 51eba31ad4
8 changed files with 287 additions and 216 deletions
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30
SHADE_Engine/SHAnimationAsset.h Normal file
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@ -0,0 +1,30 @@
/*************************************************************************//**
* \file SHAnimationAsset.h
* \author Loh Xiao Qi
* \date October 2022
* \brief
*
* Copyright (C) 2022 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 <vector>
#include <assimp/anim.h>
#include "SH_API.power h"
namespace SHADE
{
struct SH_API SHAnimationAsset
{
std::string name;
std::vector<aiNodeAnim*> nodeChannels;
std::vector<aiMeshAnim*> meshChannels;
std::vector<aiMeshMorphAnim*> morphMeshChannels;
double duration;
double ticksPerSecond;
};
}

30
SHADE_Engine/src/Assets/Asset Types/SHAnimationAsset.h Normal file
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@ -0,0 +1,30 @@
/*************************************************************************//**
* \file SHAnimationAsset.h
* \author Loh Xiao Qi
* \date October 2022
* \brief
*
* Copyright (C) 2022 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 <vector>
#include <assimp/anim.h>
#include "SH_API.h"
namespace SHADE
{
struct SH_API SHAnimationAsset
{
std::string name;
std::vector<aiNodeAnim*> nodeChannels;
std::vector<aiMeshAnim*> meshChannels;
std::vector<aiMeshMorphAnim*> morphMeshChannels;
double duration;
double ticksPerSecond;
};
}

143
SHADE_Engine/src/Assets/Libraries/SHAssimpLibrary.cpp Normal file
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@ -0,0 +1,143 @@
/*************************************************************************//**
* \file SHAssimpLibrary.cpp
* \author Loh Xiao Qi
* \date October 2022
* \brief
*
* Copyright (C) 2022 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 "SHpch.h"
#include "SHAssimpLibrary.h"
#include <assimp/postprocess.h>
namespace SHADE
{
Assimp::Importer SHAssimpLibrary::aiImporter;
void SHAssimpLibrary::ProcessNode(aiNode const& node, aiScene const& scene, MeshVectorRef meshes) noexcept
{
for (size_t i {0}; i < node.mNumMeshes; ++i)
{
aiMesh* mesh = scene.mMeshes[node.mMeshes[i]];
meshes.push_back(ProcessMesh(*mesh));
}
for (size_t i{ 0 }; i < node.mNumChildren; ++i)
{
ProcessNode(*node.mChildren[i], scene, meshes);
}
}
void SHAssimpLibrary::ExtractAnimations(aiScene const& scene, AnimVectorRef anims) noexcept
{
if (scene.HasAnimations())
{
std::vector<SHAnimationAsset> anims(scene.mNumAnimations);
for (auto i{0}; i < scene.mNumAnimations; ++i)
{
auto const& anim {*scene.mAnimations[i]};
anims[i].name = anim.mName.C_Str();
anims[i].duration = anim.mDuration;
anims[i].ticksPerSecond = anim.mTicksPerSecond;
std::copy_n(anim.mChannels, anim.mNumChannels, anims[i].nodeChannels.data());
std::copy_n(anim.mMeshChannels, anim.mNumMeshChannels, anims[i].meshChannels.data());
std::copy_n(anim.mMorphMeshChannels, anim.mNumMorphMeshChannels, anims[i].morphMeshChannels.data());
}
}
}
SHMeshAsset SHAssimpLibrary::ProcessMesh(aiMesh const& mesh) noexcept
{
SHMeshAsset result
{
.compiled { false},
.changed { false }
};
for (size_t i{0}; i < mesh.mNumVertices; ++i)
{
// Vertex position
SHVec3 vertex;
vertex.x = mesh.mVertices[i].x;
vertex.y = mesh.mVertices[i].y;
vertex.z = mesh.mVertices[i].z;
result.vertexPosition.push_back(vertex);
// Tex coords
SHVec2 texCoord{0.f, 0.f};
if (mesh.mTextureCoords[0])
{
texCoord.x = mesh.mTextureCoords[0][i].x;
texCoord.y = mesh.mTextureCoords[0][i].y;
}
result.texCoords.push_back(texCoord);
// Normals
SHVec3 normal{0.f, 0.f, 0.f};
if (mesh.mNormals)
{
normal.x = mesh.mNormals[i].x;
normal.y = mesh.mNormals[i].y;
normal.z = mesh.mNormals[i].z;
}
result.vertexNormal.push_back(normal);
// Tangent
SHVec3 tangent{0.f, 0.f, 0.f};
if (mesh.mTangents)
{
tangent.x = mesh.mTangents[i].x;
tangent.y = mesh.mTangents[i].y;
tangent.z = mesh.mTangents[i].z;
}
result.vertexTangent.push_back(tangent);
}
for (size_t i {0}; i < mesh.mNumFaces; ++i)
{
aiFace face = mesh.mFaces[i];
for (size_t j{0}; j < face.mNumIndices; ++j)
{
result.indices.push_back(face.mIndices[j]);
}
}
result.header.vertexCount = static_cast<uint32_t>(result.vertexPosition.size());
result.header.indexCount = static_cast<uint32_t>(result.indices.size());
result.header.meshName = mesh.mName.C_Str();
return result;
}
void SHAssimpLibrary::LoadFromFile(AssetPath path, MeshVectorRef meshes, AnimVectorRef anims) 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_RemoveRedundantMaterials // remove redundant materials
| aiProcess_FindInvalidData // detect invalid model data, such as invalid normal vectors
| aiProcess_FlipUVs // flip the V to match the Vulkans way of doing UVs
);
if (!scene || !scene->HasMeshes())
{
SHLOG_ERROR("ERROR in GLTF::ASSIMP: {}\nFile: {}", aiImporter.GetErrorString(), path.string());
return;
}
ExtractAnimations(*scene, anims);
ProcessNode(*scene->mRootNode, *scene, meshes);
aiImporter.FreeScene();
}
}

36
SHADE_Engine/src/Assets/Libraries/SHAssimpLibrary.h Normal file
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@ -0,0 +1,36 @@
/*************************************************************************//**
* \file SHAssimpLibrary.h
* \author Loh Xiao Qi
* \date October 2022
* \brief
*
* Copyright (C) 2022 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 <assimp/Importer.hpp>
#include <assimp/scene.h>
#include <vector>
#include "../SHAssetMacros.h"
#include "../Asset Types/SHMeshAsset.h"
#include "../Asset Types/SHAnimationAsset.h"
namespace SHADE
{
class SHAssimpLibrary
{
private:
using MeshVectorRef = std::vector<SHMeshAsset>&;
using AnimVectorRef = std::vector<SHAnimationAsset>&;
static Assimp::Importer aiImporter;
static void ProcessNode(aiNode const& node, aiScene const& scene,MeshVectorRef meshes) noexcept;
static void ExtractAnimations(aiScene const& scene, AnimVectorRef anims) noexcept;
static SHMeshAsset ProcessMesh(aiMesh const& mesh) noexcept;
public:
static void LoadFromFile(AssetPath path, MeshVectorRef meshes, AnimVectorRef anims) noexcept;
};
}

162
SHADE_Engine/src/Assets/Libraries/SHMeshLoader.cpp
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@ -12,128 +12,10 @@
*****************************************************************************/ *****************************************************************************/
#include "SHpch.h" #include "SHpch.h"
#include "SHMeshLoader.h" #include "SHMeshLoader.h"
#include <assimp/postprocess.h>
#include <fstream> #include <fstream>
namespace SHADE namespace SHADE
{ {
Assimp::Importer SHMeshLoader::aiImporter;
void SHMeshLoader::ProcessNode(aiNode const& node, aiScene const& scene, std::vector<SHMeshAsset>& meshes) noexcept
{
for (size_t i {0}; i < node.mNumMeshes; ++i)
{
aiMesh* mesh = scene.mMeshes[node.mMeshes[i]];
meshes.push_back(ProcessMesh(*mesh, scene));
}
for (size_t i{ 0 }; i < node.mNumChildren; ++i)
{
ProcessNode(*node.mChildren[i], scene, meshes);
}
}
SHMeshAsset SHMeshLoader::ProcessMesh(aiMesh const& mesh, aiScene const& scene) noexcept
{
(void)scene;
SHMeshAsset result
{
.compiled { false},
.changed { false }
};
for (size_t i{0}; i < mesh.mNumVertices; ++i)
{
// Vertex position
SHVec3 vertex;
vertex.x = mesh.mVertices[i].x;
vertex.y = mesh.mVertices[i].y;
vertex.z = mesh.mVertices[i].z;
result.vertexPosition.push_back(vertex);
// Tex coords
SHVec2 texCoord{0.f, 0.f};
if (mesh.mTextureCoords[0])
{
texCoord.x = mesh.mTextureCoords[0][i].x;
texCoord.y = mesh.mTextureCoords[0][i].y;
}
result.texCoords.push_back(texCoord);
// Normals
SHVec3 normal{0.f, 0.f, 0.f};
if (mesh.mNormals)
{
normal.x = mesh.mNormals[i].x;
normal.y = mesh.mNormals[i].y;
normal.z = mesh.mNormals[i].z;
}
result.vertexNormal.push_back(normal);
// Tangent
SHVec3 tangent{0.f, 0.f, 0.f};
if (mesh.mTangents)
{
tangent.x = mesh.mTangents[i].x;
tangent.y = mesh.mTangents[i].y;
tangent.z = mesh.mTangents[i].z;
}
result.vertexTangent.push_back(tangent);
}
for (size_t i {0}; i < mesh.mNumFaces; ++i)
{
aiFace face = mesh.mFaces[i];
for (size_t j{0}; j < face.mNumIndices; ++j)
{
result.indices.push_back(face.mIndices[j]);
}
}
result.header.vertexCount = static_cast<uint32_t>(result.vertexPosition.size());
result.header.indexCount = static_cast<uint32_t>(result.indices.size());
result.header.meshName = mesh.mName.C_Str();
return result;
}
void SHMeshLoader::LoadExternal(std::vector<SHMeshAsset>& meshes, AssetPath path) 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_RemoveRedundantMaterials // remove redundant materials
| aiProcess_FindInvalidData // detect invalid model data, such as invalid normal vectors
| aiProcess_FlipUVs // flip the V to match the Vulkans way of doing UVs
);
if (!scene || !scene->HasMeshes())
{
SHLOG_ERROR("ERROR in GLTF::ASSIMP: {}\nFile: {}", aiImporter.GetErrorString(), path.string());
return;
}
//TODO MATERIALS FROM MESHES
//if (scene->HasMaterials())
//{
// for (int i{0}; i < scene->mNumMaterials; ++i)
// {
// if (scene->mMaterials[i]->mNumProperties > 0)
// {
// for (int j{0}; j < scene->mMaterials[i]->mProperties[j].)
// }
//std::cout << scene->mMaterials[i]->;
// }
//}
ProcessNode(*scene->mRootNode, *scene, meshes);
}
void SHMeshLoader::LoadSHMesh(SHMeshAsset& mesh, AssetPath path) noexcept void SHMeshLoader::LoadSHMesh(SHMeshAsset& mesh, AssetPath path) noexcept
{ {
std::ifstream file{ path.string(), std::ios::in | std::ios::binary }; std::ifstream file{ path.string(), std::ios::in | std::ios::binary };
@ -168,38 +50,6 @@ namespace SHADE
file.read(reinterpret_cast<char *>(vertNorm.data()), vertexVec3Byte); file.read(reinterpret_cast<char *>(vertNorm.data()), vertexVec3Byte);
file.read(reinterpret_cast<char *>(texCoord.data()), vertexVec2Byte); file.read(reinterpret_cast<char *>(texCoord.data()), vertexVec2Byte);
file.read(reinterpret_cast<char *>(indices.data()), sizeof(uint32_t) * indexCount); file.read(reinterpret_cast<char *>(indices.data()), sizeof(uint32_t) * indexCount);
//for (auto i{ 0 }; i < vertCount; ++i)
//{
// file >> vertPos[i].x;
// file >> vertPos[i].y;
// file >> vertPos[i].z;
//}
//
//for (auto i{ 0 }; i < vertCount; ++i)
//{
// file >> vertTan[i].x;
// file >> vertTan[i].y;
// file >> vertTan[i].z;
//}
//for (auto i{ 0 }; i < vertCount; ++i)
//{
// file >> vertNorm[i].x;
// file >> vertNorm[i].y;
// file >> vertNorm[i].z;
//}
//for (auto i{ 0 }; i < vertCount; ++i)
//{
// file >> texCoord[i].x;
// file >> texCoord[i].y;
//}
//for (auto i{ 0 }; i < indexCount; ++i)
//{
// file >> indices[i];
//}
mesh.compiled = true; mesh.compiled = true;
mesh.changed = false; mesh.changed = false;
@ -216,16 +66,4 @@ namespace SHADE
file.close(); file.close();
} }
void SHMeshLoader::LoadMesh(std::vector<SHMeshAsset>& meshes, AssetPath path) noexcept
{
if (path.extension().string() == GLTF_EXTENSION)
{
LoadExternal(meshes, path);
return;
}
meshes.emplace_back();
LoadSHMesh(meshes.back(), path);
}
} }

16
SHADE_Engine/src/Assets/Libraries/SHMeshLoader.h
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@ -10,27 +10,13 @@
* of DigiPen Institute of Technology is prohibited. * of DigiPen Institute of Technology is prohibited.
*****************************************************************************/ *****************************************************************************/
#pragma once #pragma once
#include <assimp/Importer.hpp>
#include <assimp/scene.h>
#include "../SHAssetMacros.h" #include "../SHAssetMacros.h"
#include "../Asset Types/SHMeshAsset.h" #include "../Asset Types/SHMeshAsset.h"
#include <vector>
namespace SHADE namespace SHADE
{ {
class SHMeshLoader struct SHMeshLoader
{ {
private:
static Assimp::Importer aiImporter;
static void ProcessNode(aiNode const& node, aiScene const& scene, std::vector<SHMeshAsset>& meshes) noexcept;
static SHMeshAsset ProcessMesh(aiMesh const& mesh, aiScene const& scene) noexcept;
static void LoadExternal(std::vector<SHMeshAsset>& meshes, AssetPath path) noexcept;
public:
static void LoadMesh(std::vector<SHMeshAsset>& meshes, AssetPath path) noexcept;
static void LoadSHMesh(SHMeshAsset& meshes, AssetPath path) noexcept; static void LoadSHMesh(SHMeshAsset& meshes, AssetPath path) noexcept;
}; };
} }

77
SHADE_Engine/src/Assets/SHAssetManager.cpp
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@ -14,6 +14,7 @@
#include "SHAssetMetaHandler.h" #include "SHAssetMetaHandler.h"
#include "Filesystem/SHFileSystem.h" #include "Filesystem/SHFileSystem.h"
#include "Libraries/SHAssimpLibrary.h"
#include "Libraries/SHMeshLoader.h" #include "Libraries/SHMeshLoader.h"
#include "Libraries/SHTextureLoader.h" #include "Libraries/SHTextureLoader.h"
@ -200,38 +201,38 @@ namespace SHADE
} }
void SHAssetManager::LoadDataTemp(std::string p) noexcept //void SHAssetManager::LoadDataTemp(std::string p) noexcept
{ //{
AssetPath path{ p }; // AssetPath path{ p };
if (path.extension().string() == FBX_EXTENSION // if (path.extension().string() == FBX_EXTENSION
|| path.extension().string() == GLTF_EXTENSION // || path.extension().string() == GLTF_EXTENSION
|| path.extension().string() == MESH_EXTENSION) // || path.extension().string() == MESH_EXTENSION)
{ // {
LoadGLTF( // LoadGLTF(
{ // {
.name {path.filename().string()}, // .name {path.filename().string()},
.id {0}, // .id {0},
.type {AssetType::MESH}, // .type {AssetType::MESH},
.path {path}, // .path {path},
.location {0} // .location {0}
} // }
); // );
} // }
else if (path.extension().string() == DDS_EXTENSION // else if (path.extension().string() == DDS_EXTENSION
|| path.extension().string() == TEXTURE_EXTENSION) // || path.extension().string() == TEXTURE_EXTENSION)
{ // {
LoadDDS( // LoadDDS(
{ // {
.name {path.filename().string()}, // .name {path.filename().string()},
.id {0}, // .id {0},
.type {AssetType::DDS}, // .type {AssetType::DDS},
.path {path}, // .path {path},
.location {0} // .location {0}
} // }
); // );
} // }
} //}
std::vector<SHMeshAsset> SHAssetManager::GetAllMeshes() noexcept std::vector<SHMeshAsset> SHAssetManager::GetAllMeshes() noexcept
{ {
@ -319,11 +320,12 @@ namespace SHADE
return false; return false;
} }
void SHAssetManager::LoadGLTF(SHAsset asset) noexcept void SHAssetManager::LoadGLTF(AssetPath path) noexcept
{ {
std::vector<SHMeshAsset> meshes; std::vector<SHMeshAsset> meshes;
std::vector<SHAnimationAsset> anims;
SHMeshLoader::LoadMesh(meshes, asset.path);
SHAssimpLibrary::LoadFromFile(path, meshes, anims);
for (auto const& mesh : meshes) for (auto const& mesh : meshes)
{ {
@ -333,7 +335,7 @@ namespace SHADE
AssetPath path; AssetPath path;
if (!mesh.compiled) if (!mesh.compiled)
{ {
path = SHMeshCompiler::CompileMeshBinary(mesh, asset.path); path = SHMeshCompiler::CompileMeshBinary(mesh, path);
} }
assetCollection.emplace_back( assetCollection.emplace_back(
@ -344,6 +346,11 @@ namespace SHADE
0 0
); );
} }
for (auto const& anim : anims)
{
//TODO Register anim resource and compile into binary
}
} }
void SHAssetManager::LoadDDS(SHAsset asset) noexcept void SHAssetManager::LoadDDS(SHAsset asset) noexcept

9
SHADE_Engine/src/Assets/SHAssetManager.h
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@ -71,12 +71,16 @@ namespace SHADE
// -------------------------------------------------------------------------/ // -------------------------------------------------------------------------/
//TODO: TEMPORARY FOR TESTING GLTF & DDS //TODO: TEMPORARY FOR TESTING GLTF & DDS
static void LoadDataTemp(std::string path) noexcept; //static void LoadDataTemp(std::string path) noexcept;
static std::vector<SHMeshAsset> GetAllMeshes() noexcept; static std::vector<SHMeshAsset> GetAllMeshes() noexcept;
static std::vector<SHTextureAsset> GetAllTextures() noexcept; static std::vector<SHTextureAsset> GetAllTextures() noexcept;
static SHMeshAsset const* GetMesh(AssetID id) noexcept; static SHMeshAsset const* GetMesh(AssetID id) noexcept;
static SHTextureAsset const* GetTexture(AssetID id) noexcept; static SHTextureAsset const* GetTexture(AssetID id) noexcept;
// Specialised load calls
static void LoadGLTF(AssetPath path) noexcept;
static void LoadDDS(SHAsset asset) noexcept;
private: private:
/**************************************************************************** /****************************************************************************
* \brief Load resource data into memory * \brief Load resource data into memory
@ -118,9 +122,6 @@ namespace SHADE
static bool IsRecognised(char const*) noexcept; static bool IsRecognised(char const*) noexcept;
// Specialised load calls
static void LoadGLTF(SHAsset asset) noexcept;
static void LoadDDS(SHAsset asset) noexcept;
static FMOD::System* audioSystem; static FMOD::System* audioSystem;
static std::unordered_map<AssetID,SHSound>* audioSoundList; static std::unordered_map<AssetID,SHSound>* audioSoundList;