97 lines
3.5 KiB
C++
Executable File
97 lines
3.5 KiB
C++
Executable File
//
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// KRViewport.h
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// Kraken Engine
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//
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// Copyright 2025 Kearwood Gilbert. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other materials
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// provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY KEARWOOD GILBERT ''AS IS'' AND ANY EXPRESS OR IMPLIED
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// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KEARWOOD GILBERT OR
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// The views and conclusions contained in the software and documentation are those of the
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// authors and should not be interpreted as representing official policies, either expressed
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// or implied, of Kearwood Gilbert.
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//
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#pragma once
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#include "KREngine-common.h"
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#include "aabb.h"
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#include "KRShaderReflection.h"
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class KRLight;
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class KRViewport
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: public KRReflectedObject
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{
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public:
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KRViewport();
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KRViewport(const hydra::Vector2& size, const hydra::Matrix4& matView, const hydra::Matrix4& matProjection);
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~KRViewport();
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bool getShaderValue(ShaderValue value, hydra::Vector4* output) const final;
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bool getShaderValue(ShaderValue value, hydra::Matrix4* output) const final;
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const hydra::Vector2& getSize() const;
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const hydra::Matrix4& getViewMatrix() const;
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const hydra::Matrix4& getProjectionMatrix() const;
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const hydra::Matrix4& getViewProjectionMatrix() const;
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const hydra::Matrix4& getInverseViewMatrix() const;
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const hydra::Matrix4& getInverseProjectionMatrix() const;
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const hydra::Vector3& getCameraDirection() const;
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const hydra::Vector3& getCameraPosition() const;
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const int* getFrontToBackOrder() const;
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const int* getBackToFrontOrder() const;
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void setSize(const hydra::Vector2& size);
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void setViewMatrix(const hydra::Matrix4& matView);
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void setProjectionMatrix(const hydra::Matrix4& matProjection);
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float getLODBias() const;
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void setLODBias(float lod_bias);
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// Overload assignment operator
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KRViewport& operator=(const KRViewport& v);
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const std::set<KRLight*>& getVisibleLights();
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void setVisibleLights(const std::set<KRLight*> visibleLights);
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bool visible(const hydra::AABB& b) const;
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float coverage(const hydra::AABB& b) const;
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private:
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hydra::Vector2 m_size;
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hydra::Matrix4 m_matView;
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hydra::Matrix4 m_matProjection;
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float m_lodBias;
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// Derived values
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hydra::Matrix4 m_matViewProjection;
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hydra::Matrix4 m_matInverseView;
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hydra::Matrix4 m_matInverseProjection;
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hydra::Vector3 m_cameraDirection;
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hydra::Vector3 m_cameraPosition;
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int m_frontToBackOrder[8];
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int m_backToFrontOrder[8];
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void calculateDerivedValues();
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};
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