1053 lines
No EOL
32 KiB
C++
1053 lines
No EOL
32 KiB
C++
/*
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* Vulkan Example - Skeletal animation
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*
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* Copyright (C) 2016 by Sascha Willems - www.saschawillems.de
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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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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include <vector>
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#define GLM_FORCE_RADIANS
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#define GLM_FORCE_DEPTH_ZERO_TO_ONE
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#include <glm/glm.hpp>
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#include <glm/gtc/matrix_transform.hpp>
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#include <glm/gtc/type_ptr.hpp>
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#include <vulkan/vulkan.h>
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#include "vulkanexamplebase.h"
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#include "vulkanbuffer.hpp"
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#define VERTEX_BUFFER_BIND_ID 0
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#define ENABLE_VALIDATION false
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// Vertex layout used in this example
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struct Vertex {
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glm::vec3 pos;
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glm::vec3 normal;
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glm::vec2 uv;
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glm::vec3 color;
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// Max. four bones per vertex
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float boneWeights[4];
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uint32_t boneIDs[4];
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};
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std::vector<vkMeshLoader::VertexLayout> vertexLayout =
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{
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vkMeshLoader::VERTEX_LAYOUT_POSITION,
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vkMeshLoader::VERTEX_LAYOUT_NORMAL,
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vkMeshLoader::VERTEX_LAYOUT_UV,
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vkMeshLoader::VERTEX_LAYOUT_COLOR,
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vkMeshLoader::VERTEX_LAYOUT_DUMMY_VEC4,
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vkMeshLoader::VERTEX_LAYOUT_DUMMY_VEC4
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};
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// Maximum number of bones per mesh
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// Must not be higher than same const in skinning shader
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#define MAX_BONES 64
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// Maximum number of bones per vertex
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#define MAX_BONES_PER_VERTEX 4
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// Skinned mesh class
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// Per-vertex bone IDs and weights
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struct VertexBoneData
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{
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std::array<uint32_t, MAX_BONES_PER_VERTEX> IDs;
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std::array<float, MAX_BONES_PER_VERTEX> weights;
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// Ad bone weighting to vertex info
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void add(uint32_t boneID, float weight)
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{
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for (uint32_t i = 0; i < MAX_BONES_PER_VERTEX; i++)
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{
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if (weights[i] == 0.0f)
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{
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IDs[i] = boneID;
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weights[i] = weight;
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return;
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}
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}
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}
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};
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// Stores information on a single bone
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struct BoneInfo
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{
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aiMatrix4x4 offset;
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aiMatrix4x4 finalTransformation;
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BoneInfo()
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{
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offset = aiMatrix4x4();
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finalTransformation = aiMatrix4x4();
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};
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};
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class SkinnedMesh
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{
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public:
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// Bone related stuff
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// Maps bone name with index
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std::map<std::string, uint32_t> boneMapping;
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// Bone details
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std::vector<BoneInfo> boneInfo;
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// Number of bones present
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uint32_t numBones = 0;
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// Root inverese transform matrix
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aiMatrix4x4 globalInverseTransform;
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// Per-vertex bone info
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std::vector<VertexBoneData> bones;
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// Bone transformations
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std::vector<aiMatrix4x4> boneTransforms;
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// Modifier for the animation
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float animationSpeed = 0.75f;
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// Currently active animation
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aiAnimation* pAnimation;
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// Vulkan buffers
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vkMeshLoader::MeshBuffer meshBuffer;
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// Reference to assimp mesh
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// Required for animation
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VulkanMeshLoader *meshLoader;
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// Set active animation by index
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void setAnimation(uint32_t animationIndex)
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{
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assert(animationIndex < meshLoader->pScene->mNumAnimations);
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pAnimation = meshLoader->pScene->mAnimations[animationIndex];
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}
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// Load bone information from ASSIMP mesh
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void loadBones(uint32_t meshIndex, const aiMesh* pMesh, std::vector<VertexBoneData>& Bones)
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{
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for (uint32_t i = 0; i < pMesh->mNumBones; i++)
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{
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uint32_t index = 0;
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assert(pMesh->mNumBones <= MAX_BONES);
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std::string name(pMesh->mBones[i]->mName.data);
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if (boneMapping.find(name) == boneMapping.end())
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{
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// Bone not present, add new one
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index = numBones;
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numBones++;
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BoneInfo bone;
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boneInfo.push_back(bone);
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boneInfo[index].offset = pMesh->mBones[i]->mOffsetMatrix;
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boneMapping[name] = index;
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}
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else
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{
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index = boneMapping[name];
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}
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for (uint32_t j = 0; j < pMesh->mBones[i]->mNumWeights; j++)
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{
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uint32_t vertexID = meshLoader->m_Entries[meshIndex].vertexBase + pMesh->mBones[i]->mWeights[j].mVertexId;
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Bones[vertexID].add(index, pMesh->mBones[i]->mWeights[j].mWeight);
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}
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}
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boneTransforms.resize(numBones);
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}
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// Recursive bone transformation for given animation time
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void update(float time)
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{
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float TicksPerSecond = (float)(meshLoader->pScene->mAnimations[0]->mTicksPerSecond != 0 ? meshLoader->pScene->mAnimations[0]->mTicksPerSecond : 25.0f);
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float TimeInTicks = time * TicksPerSecond;
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float AnimationTime = fmod(TimeInTicks, (float)meshLoader->pScene->mAnimations[0]->mDuration);
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aiMatrix4x4 identity = aiMatrix4x4();
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readNodeHierarchy(AnimationTime, meshLoader->pScene->mRootNode, identity);
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for (uint32_t i = 0; i < boneTransforms.size(); i++)
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{
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boneTransforms[i] = boneInfo[i].finalTransformation;
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}
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}
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private:
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// Find animation for a given node
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const aiNodeAnim* findNodeAnim(const aiAnimation* animation, const std::string nodeName)
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{
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for (uint32_t i = 0; i < animation->mNumChannels; i++)
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{
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const aiNodeAnim* nodeAnim = animation->mChannels[i];
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if (std::string(nodeAnim->mNodeName.data) == nodeName)
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{
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return nodeAnim;
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}
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}
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return nullptr;
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}
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// Returns a 4x4 matrix with interpolated translation between current and next frame
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aiMatrix4x4 interpolateTranslation(float time, const aiNodeAnim* pNodeAnim)
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{
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aiVector3D translation;
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if (pNodeAnim->mNumPositionKeys == 1)
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{
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translation = pNodeAnim->mPositionKeys[0].mValue;
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}
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else
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{
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uint32_t frameIndex = 0;
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for (uint32_t i = 0; i < pNodeAnim->mNumPositionKeys - 1; i++)
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{
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if (time < (float)pNodeAnim->mPositionKeys[i + 1].mTime)
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{
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frameIndex = i;
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break;
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}
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}
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aiVectorKey currentFrame = pNodeAnim->mPositionKeys[frameIndex];
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aiVectorKey nextFrame = pNodeAnim->mPositionKeys[(frameIndex + 1) % pNodeAnim->mNumPositionKeys];
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float delta = (time - (float)currentFrame.mTime) / (float)(nextFrame.mTime - currentFrame.mTime);
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const aiVector3D& start = currentFrame.mValue;
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const aiVector3D& end = nextFrame.mValue;
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translation = (start + delta * (end - start));
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}
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aiMatrix4x4 mat;
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aiMatrix4x4::Translation(translation, mat);
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return mat;
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}
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// Returns a 4x4 matrix with interpolated rotation between current and next frame
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aiMatrix4x4 interpolateRotation(float time, const aiNodeAnim* pNodeAnim)
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{
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aiQuaternion rotation;
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if (pNodeAnim->mNumRotationKeys == 1)
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{
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rotation = pNodeAnim->mRotationKeys[0].mValue;
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}
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else
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{
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uint32_t frameIndex = 0;
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for (uint32_t i = 0; i < pNodeAnim->mNumRotationKeys - 1; i++)
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{
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if (time < (float)pNodeAnim->mRotationKeys[i + 1].mTime)
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{
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frameIndex = i;
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break;
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}
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}
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aiQuatKey currentFrame = pNodeAnim->mRotationKeys[frameIndex];
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aiQuatKey nextFrame = pNodeAnim->mRotationKeys[(frameIndex + 1) % pNodeAnim->mNumRotationKeys];
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float delta = (time - (float)currentFrame.mTime) / (float)(nextFrame.mTime - currentFrame.mTime);
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const aiQuaternion& start = currentFrame.mValue;
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const aiQuaternion& end = nextFrame.mValue;
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aiQuaternion::Interpolate(rotation, start, end, delta);
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rotation.Normalize();
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}
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aiMatrix4x4 mat(rotation.GetMatrix());
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return mat;
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}
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// Returns a 4x4 matrix with interpolated scaling between current and next frame
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aiMatrix4x4 interpolateScale(float time, const aiNodeAnim* pNodeAnim)
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{
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aiVector3D scale;
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if (pNodeAnim->mNumScalingKeys == 1)
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{
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scale = pNodeAnim->mScalingKeys[0].mValue;
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}
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else
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{
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uint32_t frameIndex = 0;
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for (uint32_t i = 0; i < pNodeAnim->mNumScalingKeys - 1; i++)
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{
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if (time < (float)pNodeAnim->mScalingKeys[i + 1].mTime)
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{
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frameIndex = i;
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break;
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}
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}
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aiVectorKey currentFrame = pNodeAnim->mScalingKeys[frameIndex];
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aiVectorKey nextFrame = pNodeAnim->mScalingKeys[(frameIndex + 1) % pNodeAnim->mNumScalingKeys];
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float delta = (time - (float)currentFrame.mTime) / (float)(nextFrame.mTime - currentFrame.mTime);
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const aiVector3D& start = currentFrame.mValue;
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const aiVector3D& end = nextFrame.mValue;
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scale = (start + delta * (end - start));
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}
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aiMatrix4x4 mat;
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aiMatrix4x4::Scaling(scale, mat);
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return mat;
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}
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// Get node hierarchy for current animation time
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void readNodeHierarchy(float AnimationTime, const aiNode* pNode, const aiMatrix4x4& ParentTransform)
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{
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std::string NodeName(pNode->mName.data);
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aiMatrix4x4 NodeTransformation(pNode->mTransformation);
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const aiNodeAnim* pNodeAnim = findNodeAnim(pAnimation, NodeName);
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if (pNodeAnim)
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{
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// Get interpolated matrices between current and next frame
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aiMatrix4x4 matScale = interpolateScale(AnimationTime, pNodeAnim);
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aiMatrix4x4 matRotation = interpolateRotation(AnimationTime, pNodeAnim);
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aiMatrix4x4 matTranslation = interpolateTranslation(AnimationTime, pNodeAnim);
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NodeTransformation = matTranslation * matRotation * matScale;
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}
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aiMatrix4x4 GlobalTransformation = ParentTransform * NodeTransformation;
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if (boneMapping.find(NodeName) != boneMapping.end())
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{
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uint32_t BoneIndex = boneMapping[NodeName];
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boneInfo[BoneIndex].finalTransformation = globalInverseTransform * GlobalTransformation * boneInfo[BoneIndex].offset;
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}
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for (uint32_t i = 0; i < pNode->mNumChildren; i++)
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{
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readNodeHierarchy(AnimationTime, pNode->mChildren[i], GlobalTransformation);
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}
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}
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};
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class VulkanExample : public VulkanExampleBase
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{
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public:
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struct {
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vkTools::VulkanTexture colorMap;
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vkTools::VulkanTexture floor;
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} textures;
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struct {
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VkPipelineVertexInputStateCreateInfo inputState;
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std::vector<VkVertexInputBindingDescription> bindingDescriptions;
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std::vector<VkVertexInputAttributeDescription> attributeDescriptions;
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} vertices;
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SkinnedMesh *skinnedMesh = nullptr;
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struct {
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vk::Buffer mesh;
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vk::Buffer floor;
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} uniformBuffers;
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struct {
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glm::mat4 projection;
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glm::mat4 model;
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glm::mat4 view;
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glm::mat4 bones[MAX_BONES];
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glm::vec4 lightPos = glm::vec4(0.0f, -250.0f, 250.0f, 1.0);
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glm::vec4 viewPos;
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} uboVS;
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struct {
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glm::mat4 projection;
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glm::mat4 model;
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glm::mat4 view;
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glm::vec4 lightPos = glm::vec4(0.0, 0.0f, -25.0f, 1.0);
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glm::vec4 viewPos;
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glm::vec2 uvOffset;
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} uboFloor;
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struct {
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VkPipeline skinning;
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VkPipeline texture;
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} pipelines;
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struct {
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vkMeshLoader::MeshBuffer floor;
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} meshes;
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VkPipelineLayout pipelineLayout;
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VkDescriptorSet descriptorSet;
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VkDescriptorSetLayout descriptorSetLayout;
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struct {
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VkDescriptorSet skinning;
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VkDescriptorSet floor;
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} descriptorSets;
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float runningTime = 0.0f;
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VulkanExample() : VulkanExampleBase(ENABLE_VALIDATION)
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{
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zoom = -150.0f;
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zoomSpeed = 2.5f;
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rotationSpeed = 0.5f;
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rotation = { -182.5f, -38.5f, 180.0f };
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enableTextOverlay = true;
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title = "Vulkan Example - Skeletal animation";
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cameraPos = { 0.0f, 0.0f, 12.0f };
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paused = true;
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}
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~VulkanExample()
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{
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// Clean up used Vulkan resources
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// Note : Inherited destructor cleans up resources stored in base class
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vkDestroyPipeline(device, pipelines.skinning, nullptr);
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vkDestroyPipeline(device, pipelines.texture, nullptr);
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vkDestroyPipelineLayout(device, pipelineLayout, nullptr);
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vkDestroyDescriptorSetLayout(device, descriptorSetLayout, nullptr);
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textureLoader->destroyTexture(textures.colorMap);
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textureLoader->destroyTexture(textures.floor);
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uniformBuffers.mesh.destroy();
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uniformBuffers.floor.destroy();
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// Destroy and free mesh resources
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vkMeshLoader::freeMeshBufferResources(device, &meshes.floor);
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vkMeshLoader::freeMeshBufferResources(device, &skinnedMesh->meshBuffer);
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delete(skinnedMesh->meshLoader);
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delete(skinnedMesh);
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}
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void buildCommandBuffers()
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{
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VkCommandBufferBeginInfo cmdBufInfo = vkTools::initializers::commandBufferBeginInfo();
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VkClearValue clearValues[2];
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clearValues[0].color = { { 0.0f, 0.0f, 0.0f, 0.0f} };
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clearValues[1].depthStencil = { 1.0f, 0 };
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VkRenderPassBeginInfo renderPassBeginInfo = vkTools::initializers::renderPassBeginInfo();
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renderPassBeginInfo.renderPass = renderPass;
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renderPassBeginInfo.renderArea.offset.x = 0;
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renderPassBeginInfo.renderArea.offset.y = 0;
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renderPassBeginInfo.renderArea.extent.width = width;
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renderPassBeginInfo.renderArea.extent.height = height;
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renderPassBeginInfo.clearValueCount = 2;
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renderPassBeginInfo.pClearValues = clearValues;
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for (int32_t i = 0; i < drawCmdBuffers.size(); ++i)
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{
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renderPassBeginInfo.framebuffer = frameBuffers[i];
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VK_CHECK_RESULT(vkBeginCommandBuffer(drawCmdBuffers[i], &cmdBufInfo));
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vkCmdBeginRenderPass(drawCmdBuffers[i], &renderPassBeginInfo, VK_SUBPASS_CONTENTS_INLINE);
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VkViewport viewport = vkTools::initializers::viewport((float)width, (float)height, 0.0f, 1.0f);
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vkCmdSetViewport(drawCmdBuffers[i], 0, 1, &viewport);
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VkRect2D scissor = vkTools::initializers::rect2D(width, height, 0, 0);
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vkCmdSetScissor(drawCmdBuffers[i], 0, 1, &scissor);
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VkDeviceSize offsets[1] = { 0 };
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// Skinned mesh
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vkCmdBindDescriptorSets(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout, 0, 1, &descriptorSet, 0, NULL);
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vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.skinning);
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vkCmdBindVertexBuffers(drawCmdBuffers[i], VERTEX_BUFFER_BIND_ID, 1, &skinnedMesh->meshBuffer.vertices.buf, offsets);
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vkCmdBindIndexBuffer(drawCmdBuffers[i], skinnedMesh->meshBuffer.indices.buf, 0, VK_INDEX_TYPE_UINT32);
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vkCmdDrawIndexed(drawCmdBuffers[i], skinnedMesh->meshBuffer.indexCount, 1, 0, 0, 0);
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// Floor
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vkCmdBindDescriptorSets(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout, 0, 1, &descriptorSets.floor, 0, NULL);
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vkCmdBindPipeline(drawCmdBuffers[i], VK_PIPELINE_BIND_POINT_GRAPHICS, pipelines.texture);
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vkCmdBindVertexBuffers(drawCmdBuffers[i], VERTEX_BUFFER_BIND_ID, 1, &meshes.floor.vertices.buf, offsets);
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vkCmdBindIndexBuffer(drawCmdBuffers[i], meshes.floor.indices.buf, 0, VK_INDEX_TYPE_UINT32);
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vkCmdDrawIndexed(drawCmdBuffers[i], meshes.floor.indexCount, 1, 0, 0, 0);
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vkCmdEndRenderPass(drawCmdBuffers[i]);
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VK_CHECK_RESULT(vkEndCommandBuffer(drawCmdBuffers[i]));
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}
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}
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// Load a mesh based on data read via assimp
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// The other example will use the VulkanMesh loader which has some additional functionality for loading meshes
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void loadMesh()
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{
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skinnedMesh = new SkinnedMesh();
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skinnedMesh->meshLoader = new VulkanMeshLoader(vulkanDevice);
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#if defined(__ANDROID__)
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skinnedMesh->meshLoader->assetManager = androidApp->activity->assetManager;
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#endif
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skinnedMesh->meshLoader->LoadMesh(getAssetPath() + "models/goblin.dae", 0);
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skinnedMesh->setAnimation(0);
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// Setup bones
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// One vertex bone info structure per vertex
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skinnedMesh->bones.resize(skinnedMesh->meshLoader->numVertices);
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// Store global inverse transform matrix of root node
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skinnedMesh->globalInverseTransform = skinnedMesh->meshLoader->pScene->mRootNode->mTransformation;
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skinnedMesh->globalInverseTransform.Inverse();
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// Load bones (weights and IDs)
|
|
for (uint32_t m = 0; m < skinnedMesh->meshLoader->m_Entries.size(); m++)
|
|
{
|
|
aiMesh *paiMesh = skinnedMesh->meshLoader->pScene->mMeshes[m];
|
|
if (paiMesh->mNumBones > 0)
|
|
{
|
|
skinnedMesh->loadBones(m, paiMesh, skinnedMesh->bones);
|
|
}
|
|
}
|
|
|
|
// Generate vertex buffer
|
|
std::vector<Vertex> vertexBuffer;
|
|
// Iterate through all meshes in the file
|
|
// and extract the vertex information used in this demo
|
|
for (uint32_t m = 0; m < skinnedMesh->meshLoader->m_Entries.size(); m++)
|
|
{
|
|
for (uint32_t i = 0; i < skinnedMesh->meshLoader->m_Entries[m].Vertices.size(); i++)
|
|
{
|
|
Vertex vertex;
|
|
|
|
vertex.pos = skinnedMesh->meshLoader->m_Entries[m].Vertices[i].m_pos;
|
|
vertex.pos.y = -vertex.pos.y;
|
|
vertex.normal = skinnedMesh->meshLoader->m_Entries[m].Vertices[i].m_normal;
|
|
vertex.uv = skinnedMesh->meshLoader->m_Entries[m].Vertices[i].m_tex;
|
|
vertex.color = skinnedMesh->meshLoader->m_Entries[m].Vertices[i].m_color;
|
|
|
|
// Fetch bone weights and IDs
|
|
for (uint32_t j = 0; j < MAX_BONES_PER_VERTEX; j++)
|
|
{
|
|
vertex.boneWeights[j] = skinnedMesh->bones[skinnedMesh->meshLoader->m_Entries[m].vertexBase + i].weights[j];
|
|
vertex.boneIDs[j] = skinnedMesh->bones[skinnedMesh->meshLoader->m_Entries[m].vertexBase + i].IDs[j];
|
|
}
|
|
|
|
vertexBuffer.push_back(vertex);
|
|
}
|
|
}
|
|
VkDeviceSize vertexBufferSize = vertexBuffer.size() * sizeof(Vertex);
|
|
|
|
// Generate index buffer from loaded mesh file
|
|
std::vector<uint32_t> indexBuffer;
|
|
for (uint32_t m = 0; m < skinnedMesh->meshLoader->m_Entries.size(); m++)
|
|
{
|
|
uint32_t indexBase = static_cast<uint32_t>(indexBuffer.size());
|
|
for (uint32_t i = 0; i < skinnedMesh->meshLoader->m_Entries[m].Indices.size(); i++)
|
|
{
|
|
indexBuffer.push_back(skinnedMesh->meshLoader->m_Entries[m].Indices[i] + indexBase);
|
|
}
|
|
}
|
|
VkDeviceSize indexBufferSize = indexBuffer.size() * sizeof(uint32_t);
|
|
skinnedMesh->meshBuffer.indexCount = indexBuffer.size();
|
|
|
|
bool useStaging = true;
|
|
|
|
if (useStaging)
|
|
{
|
|
struct {
|
|
VkBuffer buffer;
|
|
VkDeviceMemory memory;
|
|
} vertexStaging, indexStaging;
|
|
|
|
// Create staging buffers
|
|
// Vertex data
|
|
createBuffer(
|
|
VK_BUFFER_USAGE_TRANSFER_SRC_BIT,
|
|
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT,
|
|
vertexBufferSize,
|
|
vertexBuffer.data(),
|
|
&vertexStaging.buffer,
|
|
&vertexStaging.memory);
|
|
// Index data
|
|
createBuffer(
|
|
VK_BUFFER_USAGE_TRANSFER_SRC_BIT,
|
|
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT,
|
|
indexBufferSize,
|
|
indexBuffer.data(),
|
|
&indexStaging.buffer,
|
|
&indexStaging.memory);
|
|
|
|
// Create device local buffers
|
|
// Vertex buffer
|
|
createBuffer(
|
|
VK_BUFFER_USAGE_VERTEX_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT,
|
|
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT,
|
|
vertexBufferSize,
|
|
nullptr,
|
|
&skinnedMesh->meshBuffer.vertices.buf,
|
|
&skinnedMesh->meshBuffer.vertices.mem);
|
|
// Index buffer
|
|
createBuffer(
|
|
VK_BUFFER_USAGE_INDEX_BUFFER_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT,
|
|
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT,
|
|
indexBufferSize,
|
|
nullptr,
|
|
&skinnedMesh->meshBuffer.indices.buf,
|
|
&skinnedMesh->meshBuffer.indices.mem);
|
|
|
|
// Copy from staging buffers
|
|
VkCommandBuffer copyCmd = VulkanExampleBase::createCommandBuffer(VK_COMMAND_BUFFER_LEVEL_PRIMARY, true);
|
|
|
|
VkBufferCopy copyRegion = {};
|
|
|
|
copyRegion.size = vertexBufferSize;
|
|
vkCmdCopyBuffer(
|
|
copyCmd,
|
|
vertexStaging.buffer,
|
|
skinnedMesh->meshBuffer.vertices.buf,
|
|
1,
|
|
©Region);
|
|
|
|
copyRegion.size = indexBufferSize;
|
|
vkCmdCopyBuffer(
|
|
copyCmd,
|
|
indexStaging.buffer,
|
|
skinnedMesh->meshBuffer.indices.buf,
|
|
1,
|
|
©Region);
|
|
|
|
VulkanExampleBase::flushCommandBuffer(copyCmd, queue, true);
|
|
|
|
vkDestroyBuffer(device, vertexStaging.buffer, nullptr);
|
|
vkFreeMemory(device, vertexStaging.memory, nullptr);
|
|
vkDestroyBuffer(device, indexStaging.buffer, nullptr);
|
|
vkFreeMemory(device, indexStaging.memory, nullptr);
|
|
}
|
|
else
|
|
{
|
|
// Vertex buffer
|
|
createBuffer(
|
|
VK_BUFFER_USAGE_VERTEX_BUFFER_BIT,
|
|
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT,
|
|
vertexBufferSize,
|
|
vertexBuffer.data(),
|
|
&skinnedMesh->meshBuffer.vertices.buf,
|
|
&skinnedMesh->meshBuffer.vertices.mem);
|
|
// Index buffer
|
|
createBuffer(
|
|
VK_BUFFER_USAGE_INDEX_BUFFER_BIT,
|
|
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT,
|
|
indexBufferSize,
|
|
indexBuffer.data(),
|
|
&skinnedMesh->meshBuffer.indices.buf,
|
|
&skinnedMesh->meshBuffer.indices.mem);
|
|
}
|
|
}
|
|
|
|
void loadAssets()
|
|
{
|
|
textureLoader->loadTexture(getAssetPath() + "textures/goblin_bc3.ktx", VK_FORMAT_BC3_UNORM_BLOCK, &textures.colorMap);
|
|
textureLoader->loadTexture(getAssetPath() + "textures/trail_bc3.ktx", VK_FORMAT_BC3_UNORM_BLOCK, &textures.floor);
|
|
VulkanExampleBase::loadMesh(getAssetPath() + "models/plane_z.obj", &meshes.floor, vertexLayout, 512.0f);
|
|
}
|
|
|
|
void setupVertexDescriptions()
|
|
{
|
|
// Binding description
|
|
vertices.bindingDescriptions.resize(1);
|
|
vertices.bindingDescriptions[0] =
|
|
vkTools::initializers::vertexInputBindingDescription(
|
|
VERTEX_BUFFER_BIND_ID,
|
|
sizeof(Vertex),
|
|
VK_VERTEX_INPUT_RATE_VERTEX);
|
|
|
|
// Attribute descriptions
|
|
// Describes memory layout and shader positions
|
|
vertices.attributeDescriptions.resize(6);
|
|
// Location 0 : Position
|
|
vertices.attributeDescriptions[0] =
|
|
vkTools::initializers::vertexInputAttributeDescription(
|
|
VERTEX_BUFFER_BIND_ID,
|
|
0,
|
|
VK_FORMAT_R32G32B32_SFLOAT,
|
|
0);
|
|
// Location 1 : Normal
|
|
vertices.attributeDescriptions[1] =
|
|
vkTools::initializers::vertexInputAttributeDescription(
|
|
VERTEX_BUFFER_BIND_ID,
|
|
1,
|
|
VK_FORMAT_R32G32B32_SFLOAT,
|
|
sizeof(float) * 3);
|
|
// Location 2 : Texture coordinates
|
|
vertices.attributeDescriptions[2] =
|
|
vkTools::initializers::vertexInputAttributeDescription(
|
|
VERTEX_BUFFER_BIND_ID,
|
|
2,
|
|
VK_FORMAT_R32G32_SFLOAT,
|
|
sizeof(float) * 6);
|
|
// Location 3 : Color
|
|
vertices.attributeDescriptions[3] =
|
|
vkTools::initializers::vertexInputAttributeDescription(
|
|
VERTEX_BUFFER_BIND_ID,
|
|
3,
|
|
VK_FORMAT_R32G32B32_SFLOAT,
|
|
sizeof(float) * 8);
|
|
// Location 4 : Bone weights
|
|
vertices.attributeDescriptions[4] =
|
|
vkTools::initializers::vertexInputAttributeDescription(
|
|
VERTEX_BUFFER_BIND_ID,
|
|
4,
|
|
VK_FORMAT_R32G32B32A32_SFLOAT,
|
|
sizeof(float) * 11);
|
|
// Location 5 : Bone IDs
|
|
vertices.attributeDescriptions[5] =
|
|
vkTools::initializers::vertexInputAttributeDescription(
|
|
VERTEX_BUFFER_BIND_ID,
|
|
5,
|
|
VK_FORMAT_R32G32B32A32_SINT,
|
|
sizeof(float) * 15);
|
|
|
|
vertices.inputState = vkTools::initializers::pipelineVertexInputStateCreateInfo();
|
|
vertices.inputState.vertexBindingDescriptionCount = vertices.bindingDescriptions.size();
|
|
vertices.inputState.pVertexBindingDescriptions = vertices.bindingDescriptions.data();
|
|
vertices.inputState.vertexAttributeDescriptionCount = vertices.attributeDescriptions.size();
|
|
vertices.inputState.pVertexAttributeDescriptions = vertices.attributeDescriptions.data();
|
|
}
|
|
|
|
void setupDescriptorPool()
|
|
{
|
|
// Example uses one ubo and one combined image sampler
|
|
std::vector<VkDescriptorPoolSize> poolSizes =
|
|
{
|
|
vkTools::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 2),
|
|
vkTools::initializers::descriptorPoolSize(VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 2),
|
|
};
|
|
|
|
VkDescriptorPoolCreateInfo descriptorPoolInfo =
|
|
vkTools::initializers::descriptorPoolCreateInfo(
|
|
poolSizes.size(),
|
|
poolSizes.data(),
|
|
2);
|
|
|
|
VK_CHECK_RESULT(vkCreateDescriptorPool(device, &descriptorPoolInfo, nullptr, &descriptorPool));
|
|
}
|
|
|
|
void setupDescriptorSetLayout()
|
|
{
|
|
std::vector<VkDescriptorSetLayoutBinding> setLayoutBindings =
|
|
{
|
|
// Binding 0 : Vertex shader uniform buffer
|
|
vkTools::initializers::descriptorSetLayoutBinding(
|
|
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
|
|
VK_SHADER_STAGE_VERTEX_BIT,
|
|
0),
|
|
// Binding 1 : Fragment shader combined sampler
|
|
vkTools::initializers::descriptorSetLayoutBinding(
|
|
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
|
|
VK_SHADER_STAGE_FRAGMENT_BIT,
|
|
1),
|
|
};
|
|
|
|
VkDescriptorSetLayoutCreateInfo descriptorLayout =
|
|
vkTools::initializers::descriptorSetLayoutCreateInfo(
|
|
setLayoutBindings.data(),
|
|
setLayoutBindings.size());
|
|
|
|
VK_CHECK_RESULT(vkCreateDescriptorSetLayout(device, &descriptorLayout, nullptr, &descriptorSetLayout));
|
|
|
|
VkPipelineLayoutCreateInfo pPipelineLayoutCreateInfo =
|
|
vkTools::initializers::pipelineLayoutCreateInfo(
|
|
&descriptorSetLayout,
|
|
1);
|
|
|
|
VK_CHECK_RESULT(vkCreatePipelineLayout(device, &pPipelineLayoutCreateInfo, nullptr, &pipelineLayout));
|
|
}
|
|
|
|
void setupDescriptorSet()
|
|
{
|
|
VkDescriptorSetAllocateInfo allocInfo =
|
|
vkTools::initializers::descriptorSetAllocateInfo(
|
|
descriptorPool,
|
|
&descriptorSetLayout,
|
|
1);
|
|
|
|
VK_CHECK_RESULT(vkAllocateDescriptorSets(device, &allocInfo, &descriptorSet));
|
|
|
|
VkDescriptorImageInfo texDescriptor =
|
|
vkTools::initializers::descriptorImageInfo(
|
|
textures.colorMap.sampler,
|
|
textures.colorMap.view,
|
|
VK_IMAGE_LAYOUT_GENERAL);
|
|
|
|
std::vector<VkWriteDescriptorSet> writeDescriptorSets =
|
|
{
|
|
// Binding 0 : Vertex shader uniform buffer
|
|
vkTools::initializers::writeDescriptorSet(
|
|
descriptorSet,
|
|
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
|
|
0,
|
|
&uniformBuffers.mesh.descriptor),
|
|
// Binding 1 : Color map
|
|
vkTools::initializers::writeDescriptorSet(
|
|
descriptorSet,
|
|
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
|
|
1,
|
|
&texDescriptor)
|
|
};
|
|
|
|
vkUpdateDescriptorSets(device, writeDescriptorSets.size(), writeDescriptorSets.data(), 0, NULL);
|
|
|
|
// Floor
|
|
VK_CHECK_RESULT(vkAllocateDescriptorSets(device, &allocInfo, &descriptorSets.floor));
|
|
|
|
texDescriptor.imageView = textures.floor.view;
|
|
texDescriptor.sampler = textures.floor.sampler;
|
|
|
|
writeDescriptorSets.clear();
|
|
|
|
// Binding 0 : Vertex shader uniform buffer
|
|
writeDescriptorSets.push_back(
|
|
vkTools::initializers::writeDescriptorSet(
|
|
descriptorSets.floor,
|
|
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER,
|
|
0,
|
|
&uniformBuffers.floor.descriptor));
|
|
// Binding 1 : Color map
|
|
writeDescriptorSets.push_back(
|
|
vkTools::initializers::writeDescriptorSet(
|
|
descriptorSets.floor,
|
|
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
|
|
1,
|
|
&texDescriptor));
|
|
|
|
vkUpdateDescriptorSets(device, writeDescriptorSets.size(), writeDescriptorSets.data(), 0, NULL);
|
|
}
|
|
|
|
void preparePipelines()
|
|
{
|
|
VkPipelineInputAssemblyStateCreateInfo inputAssemblyState =
|
|
vkTools::initializers::pipelineInputAssemblyStateCreateInfo(
|
|
VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST,
|
|
0,
|
|
VK_FALSE);
|
|
|
|
VkPipelineRasterizationStateCreateInfo rasterizationState =
|
|
vkTools::initializers::pipelineRasterizationStateCreateInfo(
|
|
VK_POLYGON_MODE_FILL,
|
|
VK_CULL_MODE_BACK_BIT,
|
|
VK_FRONT_FACE_CLOCKWISE,
|
|
0);
|
|
|
|
VkPipelineColorBlendAttachmentState blendAttachmentState =
|
|
vkTools::initializers::pipelineColorBlendAttachmentState(
|
|
0xf,
|
|
VK_FALSE);
|
|
|
|
VkPipelineColorBlendStateCreateInfo colorBlendState =
|
|
vkTools::initializers::pipelineColorBlendStateCreateInfo(
|
|
1,
|
|
&blendAttachmentState);
|
|
|
|
VkPipelineDepthStencilStateCreateInfo depthStencilState =
|
|
vkTools::initializers::pipelineDepthStencilStateCreateInfo(
|
|
VK_TRUE,
|
|
VK_TRUE,
|
|
VK_COMPARE_OP_LESS_OR_EQUAL);
|
|
|
|
VkPipelineViewportStateCreateInfo viewportState =
|
|
vkTools::initializers::pipelineViewportStateCreateInfo(1, 1, 0);
|
|
|
|
VkPipelineMultisampleStateCreateInfo multisampleState =
|
|
vkTools::initializers::pipelineMultisampleStateCreateInfo(
|
|
VK_SAMPLE_COUNT_1_BIT,
|
|
0);
|
|
|
|
std::vector<VkDynamicState> dynamicStateEnables = {
|
|
VK_DYNAMIC_STATE_VIEWPORT,
|
|
VK_DYNAMIC_STATE_SCISSOR
|
|
};
|
|
VkPipelineDynamicStateCreateInfo dynamicState =
|
|
vkTools::initializers::pipelineDynamicStateCreateInfo(
|
|
dynamicStateEnables.data(),
|
|
dynamicStateEnables.size(),
|
|
0);
|
|
|
|
// Skinned rendering pipeline
|
|
std::array<VkPipelineShaderStageCreateInfo, 2> shaderStages;
|
|
|
|
shaderStages[0] = loadShader(getAssetPath() + "shaders/skeletalanimation/mesh.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
|
|
shaderStages[1] = loadShader(getAssetPath() + "shaders/skeletalanimation/mesh.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
|
|
|
|
VkGraphicsPipelineCreateInfo pipelineCreateInfo =
|
|
vkTools::initializers::pipelineCreateInfo(
|
|
pipelineLayout,
|
|
renderPass,
|
|
0);
|
|
|
|
pipelineCreateInfo.pVertexInputState = &vertices.inputState;
|
|
pipelineCreateInfo.pInputAssemblyState = &inputAssemblyState;
|
|
pipelineCreateInfo.pRasterizationState = &rasterizationState;
|
|
pipelineCreateInfo.pColorBlendState = &colorBlendState;
|
|
pipelineCreateInfo.pMultisampleState = &multisampleState;
|
|
pipelineCreateInfo.pViewportState = &viewportState;
|
|
pipelineCreateInfo.pDepthStencilState = &depthStencilState;
|
|
pipelineCreateInfo.pDynamicState = &dynamicState;
|
|
pipelineCreateInfo.stageCount = shaderStages.size();
|
|
pipelineCreateInfo.pStages = shaderStages.data();
|
|
|
|
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.skinning));
|
|
|
|
shaderStages[0] = loadShader(getAssetPath() + "shaders/skeletalanimation/texture.vert.spv", VK_SHADER_STAGE_VERTEX_BIT);
|
|
shaderStages[1] = loadShader(getAssetPath() + "shaders/skeletalanimation/texture.frag.spv", VK_SHADER_STAGE_FRAGMENT_BIT);
|
|
VK_CHECK_RESULT(vkCreateGraphicsPipelines(device, pipelineCache, 1, &pipelineCreateInfo, nullptr, &pipelines.texture));
|
|
}
|
|
|
|
// Prepare and initialize uniform buffer containing shader uniforms
|
|
void prepareUniformBuffers()
|
|
{
|
|
// Mesh uniform buffer block
|
|
vulkanDevice->createBuffer(
|
|
VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT,
|
|
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT,
|
|
&uniformBuffers.mesh,
|
|
sizeof(uboVS));
|
|
// Map persistant
|
|
VK_CHECK_RESULT(uniformBuffers.mesh.map());
|
|
|
|
// Floor uniform buffer block
|
|
vulkanDevice->createBuffer(
|
|
VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT,
|
|
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT,
|
|
&uniformBuffers.floor,
|
|
sizeof(uboFloor));
|
|
// Map persistant
|
|
VK_CHECK_RESULT(uniformBuffers.floor.map());
|
|
|
|
updateUniformBuffers(true);
|
|
}
|
|
|
|
void updateUniformBuffers(bool viewChanged)
|
|
{
|
|
if (viewChanged)
|
|
{
|
|
uboVS.projection = glm::perspective(glm::radians(60.0f), (float)width / (float)height, 0.1f, 1024.0f);
|
|
|
|
glm::mat4 viewMatrix = glm::translate(glm::mat4(), glm::vec3(0.0f, 0.0f, zoom));
|
|
viewMatrix = glm::rotate(viewMatrix, glm::radians(90.0f), glm::vec3(1.0f, 0.0f, 0.0f));
|
|
viewMatrix = glm::scale(viewMatrix, glm::vec3(0.025f));
|
|
|
|
uboVS.view = viewMatrix * glm::translate(glm::mat4(), glm::vec3(cameraPos.x, -cameraPos.z, cameraPos.y) * 100.0f);
|
|
uboVS.view = glm::rotate(uboVS.view, glm::radians(rotation.x), glm::vec3(1.0f, 0.0f, 0.0f));
|
|
uboVS.view = glm::rotate(uboVS.view, glm::radians(rotation.z), glm::vec3(0.0f, 1.0f, 0.0f));
|
|
uboVS.view = glm::rotate(uboVS.view, glm::radians(-rotation.y), glm::vec3(0.0f, 0.0f, 1.0f));
|
|
|
|
uboVS.viewPos = glm::vec4(0.0f, 0.0f, -zoom, 0.0f);
|
|
|
|
uboFloor.projection = uboVS.projection;
|
|
uboFloor.view = viewMatrix;
|
|
uboFloor.model = glm::translate(glm::mat4(), glm::vec3(cameraPos.x, -cameraPos.z, cameraPos.y) * 100.0f);
|
|
uboFloor.model = glm::rotate(uboFloor.model, glm::radians(rotation.x), glm::vec3(1.0f, 0.0f, 0.0f));
|
|
uboFloor.model = glm::rotate(uboFloor.model, glm::radians(rotation.z), glm::vec3(0.0f, 1.0f, 0.0f));
|
|
uboFloor.model = glm::rotate(uboFloor.model, glm::radians(-rotation.y), glm::vec3(0.0f, 0.0f, 1.0f));
|
|
uboFloor.model = glm::translate(uboFloor.model, glm::vec3(0.0f, 0.0f, -1800.0f));
|
|
uboFloor.viewPos = glm::vec4(0.0f, 0.0f, -zoom, 0.0f);
|
|
}
|
|
|
|
// Update bones
|
|
skinnedMesh->update(runningTime);
|
|
for (uint32_t i = 0; i < skinnedMesh->boneTransforms.size(); i++)
|
|
{
|
|
uboVS.bones[i] = glm::transpose(glm::make_mat4(&skinnedMesh->boneTransforms[i].a1));
|
|
}
|
|
|
|
uniformBuffers.mesh.copyTo(&uboVS, sizeof(uboVS));
|
|
|
|
// Update floor animation
|
|
uboFloor.uvOffset.t -= 0.25f * skinnedMesh->animationSpeed * frameTimer;
|
|
uniformBuffers.floor.copyTo(&uboFloor, sizeof(uboFloor));
|
|
}
|
|
|
|
void draw()
|
|
{
|
|
VulkanExampleBase::prepareFrame();
|
|
|
|
submitInfo.commandBufferCount = 1;
|
|
submitInfo.pCommandBuffers = &drawCmdBuffers[currentBuffer];
|
|
VK_CHECK_RESULT(vkQueueSubmit(queue, 1, &submitInfo, VK_NULL_HANDLE));
|
|
|
|
VulkanExampleBase::submitFrame();
|
|
}
|
|
|
|
void prepare()
|
|
{
|
|
VulkanExampleBase::prepare();
|
|
loadAssets();
|
|
loadMesh();
|
|
setupVertexDescriptions();
|
|
prepareUniformBuffers();
|
|
setupDescriptorSetLayout();
|
|
preparePipelines();
|
|
setupDescriptorPool();
|
|
setupDescriptorSet();
|
|
buildCommandBuffers();
|
|
prepared = true;
|
|
}
|
|
|
|
virtual void render()
|
|
{
|
|
if (!prepared)
|
|
return;
|
|
draw();
|
|
if (!paused)
|
|
{
|
|
runningTime += frameTimer * skinnedMesh->animationSpeed;
|
|
vkDeviceWaitIdle(device);
|
|
updateUniformBuffers(false);
|
|
}
|
|
}
|
|
|
|
virtual void viewChanged()
|
|
{
|
|
vkDeviceWaitIdle(device);
|
|
updateUniformBuffers(true);
|
|
}
|
|
|
|
void changeAnimationSpeed(float delta)
|
|
{
|
|
skinnedMesh->animationSpeed += delta;
|
|
}
|
|
|
|
virtual void keyPressed(uint32_t keyCode)
|
|
{
|
|
switch (keyCode)
|
|
{
|
|
case KEY_KPADD:
|
|
case GAMEPAD_BUTTON_R1:
|
|
changeAnimationSpeed(0.1f);
|
|
break;
|
|
case KEY_KPSUB:
|
|
case GAMEPAD_BUTTON_L1:
|
|
changeAnimationSpeed(-0.1f);
|
|
break;
|
|
}
|
|
}
|
|
|
|
virtual void getOverlayText(VulkanTextOverlay *textOverlay)
|
|
{
|
|
if (skinnedMesh != nullptr)
|
|
{
|
|
std::stringstream ss;
|
|
ss << std::setprecision(2) << std::fixed << skinnedMesh->animationSpeed;
|
|
#if defined(__ANDROID__)
|
|
textOverlay->addText("Animation speed: " + ss.str() + " (Buttons L1/R1 to change)", 5.0f, 85.0f, VulkanTextOverlay::alignLeft);
|
|
#else
|
|
textOverlay->addText("Animation speed: " + ss.str() + " (numpad +/- to change)", 5.0f, 85.0f, VulkanTextOverlay::alignLeft);
|
|
#endif
|
|
}
|
|
}
|
|
};
|
|
|
|
VULKAN_EXAMPLE_MAIN() |