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Graphics: Add ViewerInstance class

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Jérôme Leclercq
2021-06-05 19:06:02 +02:00
parent 743f8eeb24
commit e26c1f8e68
4 changed files with 199 additions and 26 deletions
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src/Nazara/Graphics/ViewerInstance.cpp Normal file
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// Copyright (C) 2017 Jérôme Leclercq
// 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/ViewerInstance.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
{
ViewerInstance::ViewerInstance() :
m_invProjectionMatrix(Nz::Matrix4f::Identity()),
m_invViewProjMatrix(Nz::Matrix4f::Identity()),
m_invViewMatrix(Nz::Matrix4f::Identity()),
m_projectionMatrix(Nz::Matrix4f::Identity()),
m_viewProjMatrix(Nz::Matrix4f::Identity()),
m_viewMatrix(Nz::Matrix4f::Identity()),
m_targetSize(Nz::Vector2f(0.f, 0.f))
{
}
void ViewerInstance::UpdateViewBuffer(UploadPool& uploadPool, CommandBufferBuilder& builder)
{
Nz::PredefinedViewerData viewerDataOffsets = Nz::PredefinedViewerData::GetOffsets();
auto& allocation = uploadPool.Allocate(viewerDataOffsets.totalSize);
Nz::AccessByOffset<Nz::Vector3f&>(allocation.mappedPtr, viewerDataOffsets.eyePositionOffset) = m_viewMatrix.GetTranslation();
Nz::AccessByOffset<Nz::Vector2f&>(allocation.mappedPtr, viewerDataOffsets.invTargetSizeOffset) = 1.f / m_targetSize;
Nz::AccessByOffset<Nz::Vector2f&>(allocation.mappedPtr, viewerDataOffsets.targetSizeOffset) = m_targetSize;
Nz::AccessByOffset<Nz::Matrix4f&>(allocation.mappedPtr, viewerDataOffsets.invProjMatrixOffset) = m_invProjectionMatrix;
Nz::AccessByOffset<Nz::Matrix4f&>(allocation.mappedPtr, viewerDataOffsets.invViewMatrixOffset) = m_invViewMatrix;
Nz::AccessByOffset<Nz::Matrix4f&>(allocation.mappedPtr, viewerDataOffsets.invViewProjMatrixOffset) = m_invViewProjMatrix;
Nz::AccessByOffset<Nz::Matrix4f&>(allocation.mappedPtr, viewerDataOffsets.projMatrixOffset) = m_projectionMatrix;
Nz::AccessByOffset<Nz::Matrix4f&>(allocation.mappedPtr, viewerDataOffsets.viewProjMatrixOffset) = m_viewProjMatrix;
Nz::AccessByOffset<Nz::Matrix4f&>(allocation.mappedPtr, viewerDataOffsets.viewMatrixOffset) = m_viewMatrix;
const std::shared_ptr<AbstractBuffer>& instanceDataUBO = Graphics::Instance()->GetViewerDataUBO();
builder.CopyBuffer(allocation, instanceDataUBO.get());
}
}