NazaraEngine/src/Nazara/Graphics/WorldInstance.cpp

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1.6 KiB
C++

// Copyright (C) 2022 Jérôme "Lynix" Leclercq (lynix680@gmail.com)
// This file is part of the "Nazara Engine - Graphics module"
// For conditions of distribution and use, see copyright notice in Config.hpp
#include <Nazara/Graphics/WorldInstance.hpp>
#include <Nazara/Core/StackVector.hpp>
#include <Nazara/Graphics/Graphics.hpp>
#include <Nazara/Graphics/MaterialSettings.hpp>
#include <Nazara/Graphics/PredefinedShaderStructs.hpp>
#include <Nazara/Renderer/CommandBufferBuilder.hpp>
#include <Nazara/Renderer/UploadPool.hpp>
#include <Nazara/Graphics/Debug.hpp>
namespace Nz
{
WorldInstance::WorldInstance() :
m_invWorldMatrix(Matrix4f::Identity()),
m_worldMatrix(Matrix4f::Identity()),
m_dataInvalided(true)
{
PredefinedInstanceData instanceUboOffsets = PredefinedInstanceData::GetOffsets();
m_instanceDataBuffer = Graphics::Instance()->GetRenderDevice()->InstantiateBuffer(BufferType::Uniform, instanceUboOffsets.totalSize, BufferUsage::DeviceLocal | BufferUsage::Dynamic | BufferUsage::Write);
}
void WorldInstance::UpdateBuffers(UploadPool& uploadPool, CommandBufferBuilder& builder)
{
if (m_dataInvalided)
{
PredefinedInstanceData instanceUboOffsets = PredefinedInstanceData::GetOffsets();
auto& allocation = uploadPool.Allocate(m_instanceDataBuffer->GetSize());
AccessByOffset<Matrix4f&>(allocation.mappedPtr, instanceUboOffsets.worldMatrixOffset) = m_worldMatrix;
AccessByOffset<Matrix4f&>(allocation.mappedPtr, instanceUboOffsets.invWorldMatrixOffset) = m_invWorldMatrix;
builder.CopyBuffer(allocation, m_instanceDataBuffer.get());
m_dataInvalided = false;
}
}
}