bbac0838dd
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114 lines
2.5 KiB
C++
114 lines
2.5 KiB
C++
// Copyright (C) 2017 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/ColorBackground.hpp>
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#include <Nazara/Core/ParameterList.hpp>
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#include <Nazara/Renderer/Renderer.hpp>
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#include <Nazara/Renderer/RenderStates.hpp>
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#include <Nazara/Renderer/UberShaderInstance.hpp>
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#include <Nazara/Graphics/Debug.hpp>
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namespace Nz
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{
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namespace
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{
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/*!
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* \brief Defines render states
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* \return RenderStates for the color background
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*/
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RenderStates BuildRenderStates()
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{
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RenderStates states;
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states.cullingSide = FaceSide_Back;
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states.depthFunc = RendererComparison_Equal;
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states.depthBuffer = true;
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states.depthWrite = false;
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states.faceCulling = true;
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return states;
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}
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}
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/*!
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* \ingroup graphics
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* \class Nz::ColorBackground
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* \brief Graphics class that represents a background with uniform color
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*/
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/*!
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* \brief Constructs a ColorBackground object with a color
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*
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* \param color Uniform color (by default Black)
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*/
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ColorBackground::ColorBackground(const Color& color) :
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m_color(color)
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{
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m_uberShader = UberShaderLibrary::Get("Basic");
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ParameterList list;
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list.SetParameter("UNIFORM_VERTEX_DEPTH", true);
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m_uberShaderInstance = m_uberShader->Get(list);
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const Shader* shader = m_uberShaderInstance->GetShader();
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m_materialDiffuseUniform = shader->GetUniformLocation("MaterialDiffuse");
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m_vertexDepthUniform = shader->GetUniformLocation("VertexDepth");
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}
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/*!
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* \brief Draws this relatively to the viewer
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*
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* \param viewer Viewer for the background
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*/
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void ColorBackground::Draw(const AbstractViewer* viewer) const
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{
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NazaraUnused(viewer);
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static RenderStates states(BuildRenderStates());
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Renderer::SetRenderStates(states);
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m_uberShaderInstance->Activate();
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const Shader* shader = m_uberShaderInstance->GetShader();
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shader->SendColor(m_materialDiffuseUniform, m_color);
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shader->SendFloat(m_vertexDepthUniform, 1.f);
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Renderer::DrawFullscreenQuad();
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}
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/*!
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* \brief Gets the background type
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* \return Type of background
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*/
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BackgroundType ColorBackground::GetBackgroundType() const
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{
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return BackgroundType_Color;
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}
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/*!
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* \brief Gets the color of the background
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* \return Background color
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*/
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Color ColorBackground::GetColor() const
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{
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return m_color;
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}
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/*!
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* \brief Sets the color of the background
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*
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* \param color Background color
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*/
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void ColorBackground::SetColor(const Color& color)
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{
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m_color = color;
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}
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}
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