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#include "cloud.h"
namespace smoothly{
using namespace irr;
cloud::cloud(irr::video::IVideoDriver * d,irr::scene::ISceneManager * s){
driver = d;
scene = s;
cloudThre = 0.5;
cloudy = 0.5;
lightness = 1.2;
astrAtomScat = 0.5;
astronomical.set(1,1,1);
astrLight.set(0.5,0.5,0.5);
astrColor.set(3.0,2.8,2.6);
astrTheta = 0.025;
cloudShaderCallback.parent = this;
cloudTime = time(0);
auto cloudShader = driver->getGPUProgrammingServices()->addHighLevelShaderMaterialFromFiles(
"cloud.vs.glsl","main", irr::video::EVST_VS_1_1,
"cloud.ps.glsl", "main", irr::video::EPST_PS_1_1,
&cloudShaderCallback);
sky_1.driver = driver;
sky_1.scene = scene;
sky_1.init("sky1",cloudShader);
sky_2.driver = driver;
sky_2.scene = scene;
sky_2.init("sky2",cloudShader);
sky_2.box->setVisible(false);
sky_p = &sky_1;
sky_pb = &sky_2;
}
void cloud::renderSky(){
clock_t starts,ends;
starts=clock();
begin:
if(sky_pb->process()){
sky_pb->box->setVisible(true);
sky_p->box->setVisible(false);
//交换双缓冲
auto tmp = sky_p;
sky_p = sky_pb;
sky_pb = tmp;
cloudTime = time(0);//更新时间
return;
}
ends=clock();
if(ends-starts<30)
goto begin;
}
void cloud::skyBox::init(const std::string & name, irr::s32 cloud){
cloudMaterial.MaterialType = (irr::video::E_MATERIAL_TYPE)cloud;
//创建天空的渲染目标
cloudTop = driver->addRenderTargetTexture(core::dimension2d<u32>(512, 512), (name+"cloudTop").c_str(), video::ECF_A8R8G8B8);
cloudLeft = driver->addRenderTargetTexture(core::dimension2d<u32>(512, 512), (name+"cloudLeft").c_str(), video::ECF_A8R8G8B8);
cloudRight = driver->addRenderTargetTexture(core::dimension2d<u32>(512, 512), (name+"cloudRight").c_str(), video::ECF_A8R8G8B8);
cloudFront = driver->addRenderTargetTexture(core::dimension2d<u32>(512, 512), (name+"cloudFront").c_str(), video::ECF_A8R8G8B8);
cloudBack = driver->addRenderTargetTexture(core::dimension2d<u32>(512, 512), (name+"cloudBack").c_str(), video::ECF_A8R8G8B8);
box = scene->addSkyBoxSceneNode(
cloudTop,
NULL,
cloudLeft,
cloudRight,
cloudFront,
cloudBack
);
#define processFace(id,tex,col) \
callback[id*16]=[](skyBox * self){\
self->driver->setRenderTarget(tex,false,true); \
self->driver->setMaterial(self->cloudMaterial); \
self->driver->draw3DTriangle(irr::core::triangle3df(irr::core::vector3df(-1,-1 ,1),\
irr::core::vector3df(-1,-0.5,1),\
irr::core::vector3df(0,0,1)),\
col);\
};\
callback[id*16+1]=[](skyBox * self){\
self->driver->setRenderTarget(tex,false,true);\
self->driver->setMaterial(self->cloudMaterial);\
self->driver->draw3DTriangle(irr::core::triangle3df(irr::core::vector3df(-1,-0.5,1),\
irr::core::vector3df(-1,0 ,1),\
irr::core::vector3df(0 ,0,1)),\
col);\
};\
callback[id*16+2]=[](skyBox * self){\
self->driver->setRenderTarget(tex,false,true);\
self->driver->setMaterial(self->cloudMaterial);\
self->driver->draw3DTriangle(irr::core::triangle3df(irr::core::vector3df(-1,0 ,1),\
irr::core::vector3df(-1,0.5,1),\
irr::core::vector3df(0,0,1)),\
col);\
};\
callback[id*16+3]=[](skyBox * self){\
self->driver->setRenderTarget(tex,false,true);\
self->driver->setMaterial(self->cloudMaterial);\
self->driver->draw3DTriangle(irr::core::triangle3df(irr::core::vector3df(-1,0.5,1),\
irr::core::vector3df(-1,1 ,1),\
irr::core::vector3df(0,0,1)),\
col);\
};\
callback[id*16+4]=[](skyBox * self){ \
self->driver->setRenderTarget(tex,false,true); \
self->driver->setMaterial(self->cloudMaterial); \
self->driver->draw3DTriangle(irr::core::triangle3df(irr::core::vector3df(-1 ,1 ,1),\
irr::core::vector3df(-0.5,1 ,1),\
irr::core::vector3df(0,0,1)),\
col);\
};\
callback[id*16+5]=[](skyBox * self){\
self->driver->setRenderTarget(tex,false,true);\
self->driver->setMaterial(self->cloudMaterial);\
self->driver->draw3DTriangle(irr::core::triangle3df(irr::core::vector3df(-0.5,1,1),\
irr::core::vector3df(0 ,1,1),\
irr::core::vector3df(0,0,1)),\
col);\
};\
callback[id*16+6]=[](skyBox * self){\
self->driver->setRenderTarget(tex,false,true);\
self->driver->setMaterial(self->cloudMaterial);\
self->driver->draw3DTriangle(irr::core::triangle3df(irr::core::vector3df(0 ,1,1),\
irr::core::vector3df(0.5,1,1),\
irr::core::vector3df(0,0,1)),\
col);\
};\
callback[id*16+7]=[](skyBox * self){\
self->driver->setRenderTarget(tex,false,true);\
self->driver->setMaterial(self->cloudMaterial);\
self->driver->draw3DTriangle(irr::core::triangle3df(irr::core::vector3df(0.5,1,1),\
irr::core::vector3df(1 ,1,1),\
irr::core::vector3df(0,0,1)),\
col);\
};\
callback[id*16+8]=[](skyBox * self){\
self->driver->setRenderTarget(tex,false,true); \
self->driver->setMaterial(self->cloudMaterial); \
self->driver->draw3DTriangle(irr::core::triangle3df(irr::core::vector3df(1,1 ,1),\
irr::core::vector3df(1,0.5,1),\
irr::core::vector3df(0,0,1)),\
col);\
};\
callback[id*16+9]=[](skyBox * self){\
self->driver->setRenderTarget(tex,false,true);\
self->driver->setMaterial(self->cloudMaterial);\
self->driver->draw3DTriangle(irr::core::triangle3df(irr::core::vector3df(1,0.5,1),\
irr::core::vector3df(1,0 ,1),\
irr::core::vector3df(0,0,1)),\
col);\
};\
callback[id*16+10]=[](skyBox * self){\
self->driver->setRenderTarget(tex,false,true);\
self->driver->setMaterial(self->cloudMaterial);\
self->driver->draw3DTriangle(irr::core::triangle3df(irr::core::vector3df(1,0 ,1),\
irr::core::vector3df(1,-0.5,1),\
irr::core::vector3df(0,0,1)),\
col);\
};\
callback[id*16+11]=[](skyBox * self){\
self->driver->setRenderTarget(tex,false,true);\
self->driver->setMaterial(self->cloudMaterial);\
self->driver->draw3DTriangle(irr::core::triangle3df(irr::core::vector3df(1,-0.5,1),\
irr::core::vector3df(1,-1 ,1),\
irr::core::vector3df(0,0,1)),\
col);\
};\
callback[id*16+12]=[](skyBox * self){ \
self->driver->setRenderTarget(tex,false,true); \
self->driver->setMaterial(self->cloudMaterial); \
self->driver->draw3DTriangle(irr::core::triangle3df(irr::core::vector3df(1 ,-1,1),\
irr::core::vector3df(0.5,-1,1),\
irr::core::vector3df(0,0,1)),\
col);\
};\
callback[id*16+13]=[](skyBox * self){\
self->driver->setRenderTarget(tex,false,true);\
self->driver->setMaterial(self->cloudMaterial);\
self->driver->draw3DTriangle(irr::core::triangle3df(irr::core::vector3df(0.5,-1,1),\
irr::core::vector3df(0, -1,1),\
irr::core::vector3df(0,0,1)),\
col);\
};\
callback[id*16+14]=[](skyBox * self){\
self->driver->setRenderTarget(tex,false,true);\
self->driver->setMaterial(self->cloudMaterial);\
self->driver->draw3DTriangle(irr::core::triangle3df(irr::core::vector3df(0 ,-1,1),\
irr::core::vector3df(-0.5,-1,1),\
irr::core::vector3df(0,0,1)),\
col);\
};\
callback[id*16+15]=[](skyBox * self){\
self->driver->setRenderTarget(tex,false,true);\
self->driver->setMaterial(self->cloudMaterial);\
self->driver->draw3DTriangle(irr::core::triangle3df(irr::core::vector3df(-0.5,-1,1),\
irr::core::vector3df(-1 ,-1,1),\
irr::core::vector3df(0,0,1)),\
col);\
};
///////////////////////////////////////////////
processFace(0,self->cloudTop,irr::video::SColor(0,0,255,0));
processFace(1,self->cloudFront,irr::video::SColor(0,255,0,0));
processFace(2,self->cloudBack,irr::video::SColor(0,255,0,255));
processFace(3,self->cloudLeft,irr::video::SColor(0,0,0,0));
processFace(4,self->cloudRight,irr::video::SColor(0,0,0,255));
count = -1;
}
bool cloud::skyBox::process(){
if(count>=80){
count = 0;
return true;
}else{
if(count<0){
//避开第一帧，防止渲染不全
++count;
return false;
}
callback[count](this);
++count;
return false;
}
}
void cloud::CloudShaderCallback::OnSetConstants(irr::video::IMaterialRendererServices *services, irr::s32){
services->setVertexShaderConstant("time",&parent->cloudTime,1);
services->setVertexShaderConstant("cloudThre",&parent->cloudThre,1);
services->setVertexShaderConstant("cloudy",&parent->cloudy,1);
services->setVertexShaderConstant("lightness",&parent->lightness,1);
services->setVertexShaderConstant("astrAtomScat",&parent->astrAtomScat,1);
services->setVertexShaderConstant("astrViewTheta",&parent->astrTheta,1);
services->setVertexShaderConstant("astronomical",&parent->astronomical.X,3);
services->setVertexShaderConstant("astrLight",&parent->astrLight.X,3);
services->setVertexShaderConstant("astrColor",&parent->astrColor.X,3);
}
}
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