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Add CollisionMeshesPrefix option to import collision data from model asset

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This commit is contained in:
Wojtek Figat
2022-02-06 14:11:13 +01:00
parent a186d1a7fc
commit 748d69a3cb
10 changed files with 88 additions and 15 deletions
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38
Source/Engine/Tools/ModelTool/ModelTool.cpp
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@@ -16,6 +16,7 @@
#include "Engine/Tools/TextureTool/TextureTool.h"
#include "Engine/ContentImporters/AssetsImportingManager.h"
#include "Engine/ContentImporters/CreateMaterial.h"
#include "Engine/ContentImporters/CreateCollisionData.h"
#include "Editor/Utilities/EditorUtilities.h"
#include <ThirdParty/meshoptimizer/meshoptimizer.h>
@@ -562,7 +563,7 @@ bool ModelTool::ImportModel(const String& path, ModelData& meshData, Options& op
materialOptions.Opacity.Texture = data.Textures[material.Opacity.TextureIndex].AssetID;
if (material.Normals.TextureIndex != -1)
materialOptions.Normals.Texture = data.Textures[material.Normals.TextureIndex].AssetID;
if (material.TwoSided | material.Diffuse.HasAlphaMask)
if (material.TwoSided || material.Diffuse.HasAlphaMask)
materialOptions.Info.CullMode = CullMode::TwoSided;
if (!Math::IsOne(material.Opacity.Value) || material.Opacity.TextureIndex != -1)
materialOptions.Info.BlendMode = MaterialBlendMode::Transparent;
@@ -624,6 +625,41 @@ bool ModelTool::ImportModel(const String& path, ModelData& meshData, Options& op
}
}
// Collision mesh output
if (options.CollisionMeshesPrefix.HasChars())
{
// Extract collision meshes
ModelData collisionModel;
for (auto& lod : data.LODs)
{
for (int32 i = lod.Meshes.Count() - 1; i >= 0; i--)
{
auto mesh = lod.Meshes[i];
if (mesh->Name.StartsWith(options.CollisionMeshesPrefix, StringSearchCase::IgnoreCase))
{
if (collisionModel.LODs.Count() == 0)
collisionModel.LODs.AddOne();
collisionModel.LODs[0].Meshes.Add(mesh);
lod.Meshes.RemoveAtKeepOrder(i);
if (lod.Meshes.IsEmpty())
break;
}
}
}
if (collisionModel.LODs.HasItems())
{
// Create collision
CollisionCooking::Argument arg;
arg.Type = CollisionDataType::TriangleMesh;
arg.OverrideModelData = &collisionModel;
auto assetPath = autoImportOutput / StringUtils::GetFileNameWithoutExtension(path) + TEXT("Collision") ASSET_FILES_EXTENSION_WITH_DOT;
if (CreateCollisionData::CookMeshCollision(assetPath, arg))
{
LOG(Error, "Failed to create collision mesh.");
}
}
}
// For generated lightmap UVs coordinates needs to be moved so all meshes are in unique locations in [0-1]x[0-1] coordinates space
if (options.LightmapUVsSource == ModelLightmapUVsSource::Generate && data.LODs.HasItems() && data.LODs[0].Meshes.Count() > 1)
{