Big Graphics update
Separated LightManager Added Sprite class Added View class Camera is no longer a SceneNode Fixed Material not invalidating programs Renamed CameraPosition uniform to EyePosition Renamed VisibilityTest to FrustumCull Former-commit-id: ff7fbe4d9b31a3c269baab0b48c6faa347a12161
This commit is contained in:
Lynix
279
src/Nazara/Graphics/View.cpp
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279
src/Nazara/Graphics/View.cpp
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// Copyright (C) 2013 Jérôme Leclercq
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// This file is part of the "Nazara Engine - Graphics module"
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// For conditions of distribution and use, see copyright notice in Config.hpp
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#include <Nazara/Graphics/View.hpp>
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#include <Nazara/Graphics/Scene.hpp>
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#include <Nazara/Renderer/Renderer.hpp>
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#include <Nazara/Renderer/RenderTarget.hpp>
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#include <Nazara/Graphics/Debug.hpp>
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NzView::NzView() :
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m_targetRegion(0.f, 0.f, 1.f, 1.f),
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m_target(nullptr),
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m_frustumUpdated(false),
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m_projectionMatrixUpdated(false),
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m_viewMatrixUpdated(false),
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m_viewportUpdated(false),
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m_zFar(1.f),
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m_zNear(-1.f)
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{
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}
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NzView::~NzView()
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{
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if (m_target)
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m_target->RemoveListener(this);
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}
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void NzView::EnsureFrustumUpdate() const
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{
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if (!m_frustumUpdated)
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UpdateFrustum();
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}
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void NzView::EnsureProjectionMatrixUpdate() const
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{
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if (!m_projectionMatrixUpdated)
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UpdateProjectionMatrix();
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}
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void NzView::EnsureViewMatrixUpdate() const
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{
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if (!m_viewMatrixUpdated)
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UpdateViewMatrix();
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}
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void NzView::EnsureViewportUpdate() const
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{
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if (!m_viewportUpdated)
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UpdateViewport();
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}
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float NzView::GetAspectRatio() const
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{
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return 1.f;
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}
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NzVector3f NzView::GetEyePosition() const
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{
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return GetPosition(nzCoordSys_Global);
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}
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const NzFrustumf& NzView::GetFrustum() const
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{
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if (!m_frustumUpdated)
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UpdateFrustum();
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return m_frustum;
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}
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const NzMatrix4f& NzView::GetProjectionMatrix() const
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{
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if (!m_projectionMatrixUpdated)
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UpdateProjectionMatrix();
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return m_projectionMatrix;
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}
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const NzRenderTarget* NzView::GetTarget() const
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{
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return m_target;
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}
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const NzRectf& NzView::GetTargetRegion() const
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{
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return m_targetRegion;
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}
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const NzMatrix4f& NzView::GetViewMatrix() const
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{
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if (!m_viewMatrixUpdated)
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UpdateViewMatrix();
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return m_viewMatrix;
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}
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const NzRectui& NzView::GetViewport() const
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{
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#if NAZARA_GRAPHICS_SAFE
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if (!m_target)
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{
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NazaraError("Camera has no render target");
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return m_viewport;
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}
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#endif
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if (!m_viewportUpdated)
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UpdateViewport();
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return m_viewport;
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}
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float NzView::GetZFar() const
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{
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return m_zFar;
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}
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float NzView::GetZNear() const
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{
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return m_zNear;
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}
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void NzView::SetTarget(const NzRenderTarget* renderTarget)
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{
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if (m_target)
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m_target->RemoveListener(this);
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m_target = renderTarget;
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if (m_target)
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m_target->AddListener(this);
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}
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void NzView::SetTarget(const NzRenderTarget& renderTarget)
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{
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SetTarget(&renderTarget);
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}
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void NzView::SetTargetRegion(const NzRectf& region)
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{
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m_targetRegion = region;
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m_frustumUpdated = false;
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m_projectionMatrixUpdated = false;
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m_viewportUpdated = false;
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}
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void NzView::SetViewport(const NzRectui& viewport)
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{
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#if NAZARA_GRAPHICS_SAFE
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if (!m_target)
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{
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NazaraError("Camera has no render target");
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return;
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}
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#endif
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// On calcule la région nécessaire pour produire ce viewport avec la taille actuelle de la cible
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float invWidth = 1.f/m_target->GetWidth();
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float invHeight = 1.f/m_target->GetHeight();
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SetTargetRegion(NzRectf(invWidth * viewport.x, invHeight * viewport.y, invWidth * viewport.width, invHeight * viewport.height));
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}
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void NzView::SetZFar(float zFar)
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{
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m_zFar = zFar;
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m_frustumUpdated = false;
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m_projectionMatrixUpdated = false;
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}
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void NzView::SetZNear(float zNear)
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{
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m_zNear = zNear;
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m_frustumUpdated = false;
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m_projectionMatrixUpdated = false;
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}
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void NzView::ApplyView() const
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{
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#if NAZARA_GRAPHICS_SAFE
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if (!m_target)
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{
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NazaraError("Camera has no render target");
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return;
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}
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#endif
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if (!m_projectionMatrixUpdated)
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UpdateProjectionMatrix();
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if (!m_viewMatrixUpdated)
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UpdateViewMatrix();
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if (!m_viewportUpdated)
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UpdateViewport();
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NzRenderer::SetMatrix(nzMatrixType_Projection, m_projectionMatrix);
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NzRenderer::SetMatrix(nzMatrixType_View, m_viewMatrix);
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NzRenderer::SetViewport(m_viewport);
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}
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void NzView::Invalidate()
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{
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NzNode::Invalidate();
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// Le frustum et la view matrix dépendent des paramètres du node, invalidons-les
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m_frustumUpdated = false;
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m_viewMatrixUpdated = false;
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}
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void NzView::OnRenderTargetReleased(const NzRenderTarget* renderTarget, void* userdata)
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{
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NazaraUnused(userdata);
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if (renderTarget == m_target)
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m_target = nullptr;
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else
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NazaraInternalError("Not listening to " + NzString::Pointer(renderTarget));
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}
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bool NzView::OnRenderTargetSizeChange(const NzRenderTarget* renderTarget, void* userdata)
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{
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NazaraUnused(userdata);
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if (renderTarget == m_target)
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{
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m_frustumUpdated = false;
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m_projectionMatrixUpdated = false;
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m_viewportUpdated = false;
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}
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else
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NazaraInternalError("Not listening to " + NzString::Pointer(renderTarget));
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return true;
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}
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void NzView::UpdateFrustum() const
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{
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if (!m_projectionMatrixUpdated)
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UpdateProjectionMatrix();
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if (!m_viewMatrixUpdated)
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UpdateViewMatrix();
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m_frustum.Extract(m_viewMatrix, m_projectionMatrix);
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m_frustumUpdated = true;
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}
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void NzView::UpdateProjectionMatrix() const
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{
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if (!m_viewportUpdated)
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UpdateViewport();
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m_projectionMatrix.MakeOrtho(m_viewport.x, m_viewport.x + m_viewport.width, m_viewport.y, m_viewport.y + m_viewport.height, m_zNear, m_zFar);
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m_projectionMatrixUpdated = true;
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}
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void NzView::UpdateViewMatrix() const
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{
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if (!m_derivedUpdated)
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UpdateDerived();
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m_viewMatrix.MakeViewMatrix(m_derivedPosition, m_derivedRotation);
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m_viewMatrixUpdated = true;
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}
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void NzView::UpdateViewport() const
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{
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unsigned int width = m_target->GetWidth();
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unsigned int height = std::max(m_target->GetHeight(), 1U);
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m_viewport.x = width * m_targetRegion.x;
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m_viewport.y = height * m_targetRegion.y;
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m_viewport.width = width * m_targetRegion.width;
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m_viewport.height = height * m_targetRegion.height;
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m_viewportUpdated = true;
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}
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