shadowsScreenQuad.h

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/*
Minetest
Copyright (C) 2021 Liso <anlismon@gmail.com>
 
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
 
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.
 
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
 
#pragma once
#include "irrlichttypes_extrabloated.h"
#include <IMaterialRendererServices.h>
#include <IShaderConstantSetCallBack.h>
#include "client/shader.h"
 
class shadowScreenQuad
{
public:
        shadowScreenQuad();
 
        void render(video::IVideoDriver *driver);
        video::SMaterial &getMaterial() { return Material; }
 
private:
        video::S3DVertex Vertices[6];
        video::SMaterial Material;
};
 
class shadowScreenQuadCB : public video::IShaderConstantSetCallBack
{
public:
        virtual void OnSetConstants(video::IMaterialRendererServices *services,
                        s32 userData);
private:
        CachedPixelShaderSetting<s32> m_sm_client_map_setting{"ShadowMapClientMap"};
        CachedPixelShaderSetting<s32>
                m_sm_client_map_trans_setting{"ShadowMapClientMapTraslucent"};
        CachedPixelShaderSetting<s32>
                m_sm_dynamic_sampler_setting{"ShadowMapSamplerdynamic"};
};