redstrate/novus
1
Fork 0
mirror of https://github.com/redstrate/Novus.git synced 2025-04-28 22:47:45 +00:00
Code Activity

Bump libphysis version, export submeshes

Browse source 
Will be needed later to correctly reconstruct models on re-import if the
index count happens to change.
This commit is contained in:
Joshua Goins 2023-12-12 21:47:39 -05:00
parent 3217b04eea
commit 2235d70882
2 changed files with 58 additions and 26 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
extern/libphysis vendored

@ -1 +1 @@
Subproject commit fba605e3073548b2e5008c9cde902f6d6e735124
Subproject commit b439934f816fef2f07a62cf04cf892d46e1c4080

82
parts/mdl/mdlexport.cpp
View file

@ -2,6 +2,7 @@
// SPDX-License-Identifier: GPL-3.0-or-later
#include "mdlexport.h"
#include <QDebug>
#include <glm/gtc/type_ptr.hpp>
#include "tiny_gltf.h"
@ -16,7 +17,13 @@ void exportModel(const QString &name, const physis_MDL &model, const physis_Skel
gltfModel.asset.generator = "Novus";
// TODO: just write the code better! dummy!!
gltfModel.nodes.reserve(1 + model.num_affected_bones + lod.num_parts);
size_t required_nodes = 1;
required_nodes += model.num_affected_bones;
for (int i = 0; i < lod.num_parts; i++) {
required_nodes += lod.parts[i].num_submeshes;
}
gltfModel.nodes.reserve(required_nodes);
auto &gltfSkeletonNode = gltfModel.nodes.emplace_back();
gltfSkeletonNode.name = skeleton.root_bone->name;
@ -123,28 +130,57 @@ void exportModel(const QString &name, const physis_MDL &model, const physis_Skel
inverseBufferView.byteLength = inverseBuffer.data.size();
}
int mesh_offset = 0;
for (uint32_t i = 0; i < lod.num_parts; i++) {
gltfSkeletonNode.children.push_back(gltfModel.nodes.size());
auto &part = lod.parts[i];
auto &gltfNode = gltfModel.nodes.emplace_back();
// Parts above 0 also have an index offset because it's supposed to be all in one buffer.
// We should do that too eventually!
int initial_index_offset = 0;
gltfNode.name = name.toStdString() + " Part " + std::to_string(i) + ".0";
gltfNode.skin = 0;
for (uint32_t j = 0; j < part.num_submeshes; j++) {
gltfSkeletonNode.children.push_back(gltfModel.nodes.size());
gltfNode.mesh = gltfModel.meshes.size();
auto &gltfMesh = gltfModel.meshes.emplace_back();
auto &gltfNode = gltfModel.nodes.emplace_back();
gltfMesh.name = gltfNode.name + " Mesh Attribute";
gltfNode.name = name.toStdString() + " Part " + std::to_string(i) + "." + std::to_string(j);
gltfNode.skin = 0;
auto &gltfPrimitive = gltfMesh.primitives.emplace_back();
gltfPrimitive.attributes["POSITION"] = gltfModel.accessors.size();
gltfPrimitive.attributes["TEXCOORD_0"] = gltfModel.accessors.size() + 1;
gltfPrimitive.attributes["TEXCOORD_1"] = gltfModel.accessors.size() + 2;
gltfPrimitive.attributes["NORMAL"] = gltfModel.accessors.size() + 3;
gltfPrimitive.attributes["COLOR_0"] = gltfModel.accessors.size() + 6;
gltfPrimitive.attributes["WEIGHTS_0"] = gltfModel.accessors.size() + 7;
gltfPrimitive.attributes["JOINTS_0"] = gltfModel.accessors.size() + 8;
gltfPrimitive.mode = TINYGLTF_MODE_TRIANGLES;
gltfNode.mesh = gltfModel.meshes.size();
auto &gltfMesh = gltfModel.meshes.emplace_back();
gltfMesh.name = gltfNode.name + " Mesh Attribute";
auto &gltfPrimitive = gltfMesh.primitives.emplace_back();
if (j == 0) {
initial_index_offset = lod.parts[i].submeshes[j].index_offset;
}
gltfPrimitive.indices = gltfModel.accessors.size();
auto &indexAccessor = gltfModel.accessors.emplace_back();
indexAccessor.name = gltfNode.name + " Index Accessor";
indexAccessor.bufferView = gltfModel.bufferViews.size() + 1;
indexAccessor.componentType = TINYGLTF_COMPONENT_TYPE_UNSIGNED_SHORT;
indexAccessor.count = lod.parts[i].submeshes[j].index_count;
indexAccessor.byteOffset = (lod.parts[i].submeshes[j].index_offset - initial_index_offset) * sizeof(uint16_t);
indexAccessor.type = TINYGLTF_TYPE_SCALAR;
gltfPrimitive.mode = TINYGLTF_MODE_TRIANGLES;
}
for (uint32_t j = 0; j < part.num_submeshes; j++) {
auto &gltfPrimitive = gltfModel.meshes[mesh_offset + j].primitives[0];
gltfPrimitive.attributes["POSITION"] = gltfModel.accessors.size();
gltfPrimitive.attributes["TEXCOORD_0"] = gltfModel.accessors.size() + 1;
gltfPrimitive.attributes["TEXCOORD_1"] = gltfModel.accessors.size() + 2;
gltfPrimitive.attributes["NORMAL"] = gltfModel.accessors.size() + 3;
gltfPrimitive.attributes["COLOR_0"] = gltfModel.accessors.size() + 6;
gltfPrimitive.attributes["WEIGHTS_0"] = gltfModel.accessors.size() + 7;
gltfPrimitive.attributes["JOINTS_0"] = gltfModel.accessors.size() + 8;
}
mesh_offset += part.num_submeshes;
// Vertices
{
@ -211,6 +247,7 @@ void exportModel(const QString &name, const physis_MDL &model, const physis_Skel
boneIdAccessor.byteOffset = offsetof(Vertex, bone_id);
auto &vertexBufferView = gltfModel.bufferViews.emplace_back();
vertexBufferView.name = "Part " + std::to_string(i) + " Vertex Buffer View";
vertexBufferView.buffer = gltfModel.buffers.size();
vertexBufferView.target = TINYGLTF_TARGET_ARRAY_BUFFER;
@ -228,6 +265,7 @@ void exportModel(const QString &name, const physis_MDL &model, const physis_Skel
}
auto &vertexBuffer = gltfModel.buffers.emplace_back();
vertexBuffer.name = "Part " + std::to_string(i) + " Vertex Buffer";
vertexBuffer.data.resize(lod.parts[i].num_vertices * sizeof(Vertex));
memcpy(vertexBuffer.data.data(), newVertices.data(), vertexBuffer.data.size());
@ -237,23 +275,17 @@ void exportModel(const QString &name, const physis_MDL &model, const physis_Skel
// Indices
{
gltfPrimitive.indices = gltfModel.accessors.size();
auto &indexAccessor = gltfModel.accessors.emplace_back();
indexAccessor.bufferView = gltfModel.bufferViews.size();
indexAccessor.componentType = TINYGLTF_COMPONENT_TYPE_UNSIGNED_SHORT;
indexAccessor.count = lod.parts[i].num_indices;
indexAccessor.type = TINYGLTF_TYPE_SCALAR;
auto &indexBufferView = gltfModel.bufferViews.emplace_back();
indexBufferView.name = "Part " + std::to_string(i) + " Index Buffer View";
indexBufferView.buffer = gltfModel.buffers.size();
indexBufferView.target = TINYGLTF_TARGET_ELEMENT_ARRAY_BUFFER;
auto &indexBuffer = gltfModel.buffers.emplace_back();
indexBuffer.name = "Part " + std::to_string(i) + " Index Buffer";
indexBuffer.data.resize(lod.parts[i].num_indices * sizeof(uint16_t));
memcpy(indexBuffer.data.data(), lod.parts[i].indices, indexBuffer.data.size());
indexBufferView.byteLength = indexBuffer.data.size();
indexBufferView.byteStride = sizeof(uint16_t);
}
}