directionallightcomponent.h

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
#pragma once
 
// Local includes
#include "lightcomponent.h"
 
// External includes
#include <orthocameracomponent.h>
#include <rendergnomoncomponent.h>
 
namespace nap
{
    // Forward declares
    class DirectionalLightComponentInstance;
 
    class NAPAPI DirectionalLightComponent : public LightComponent
    {
        RTTI_ENABLE(LightComponent)
        DECLARE_COMPONENT(DirectionalLightComponent, DirectionalLightComponentInstance)
    public:
        ComponentPtr<OrthoCameraComponent> mShadowCamera;                   
        float mProjectionSize  = 20.0f;                                     
        glm::vec2 mClippingPlanes = { 1.0f, 1000.0f };                      
        uint mShadowMapSize = 1024;                                         
    };
 
 
    class NAPAPI DirectionalLightComponentInstance : public LightComponentInstance
    {
        RTTI_ENABLE(LightComponentInstance)
    public:
        DirectionalLightComponentInstance(EntityInstance& entity, Component& resource) :
            LightComponentInstance(entity, resource) { }
 
        virtual bool init(utility::ErrorState& errorState) override;
 
        virtual ELightType getLightType() const override                    { return ELightType::Directional; }
 
        virtual EShadowMapType getShadowMapType() const override            { return EShadowMapType::Quad; }
 
    private:
 
        // Shadow camera entity resource
        std::unique_ptr<Entity> mShadowCamEntity = nullptr;
        std::unique_ptr<OrthoCameraComponent> mShadowCamComponent = nullptr;
        std::unique_ptr<RenderFrustumComponent> mShadowFrustrumComponent = nullptr;
        std::unique_ptr<TransformComponent> mShadowCamXformComponent = nullptr;
        std::unique_ptr<RenderGnomonComponent> mShadowOriginComponent = nullptr;
        std::unique_ptr<GnomonMesh> mGnomonMesh = nullptr;
    };
}