khanat-opennel-code/code/nel/src/3d/bloom_effect.cpp
acemtp@users.sourceforge.net d5c601ffa5 initial version
2010-05-06 02:08:41 +02:00

588 lines
18 KiB
C++

// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
// Copyright (C) 2010 Winch Gate Property Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#include "std3d.h"
// NEL3D
#include "nel/3d/u_driver.h"
#include "nel/3d/u_scene.h"
#include "nel/3d/u_camera.h"
//3D
#include "nel/3d/driver_user.h"
#include "nel/3d/texture_bloom.h"
#include "nel/3d/texture_user.h"
#include "nel/3d/bloom_effect.h"
using namespace NLMISC;
using namespace NL3D;
using namespace std;
namespace NL3D
{
// vertex program used to blur texture
static const char *TextureOffset =
"!!VP1.0 \n\
MOV o[COL0].x, c[8].x; \n\
MOV o[COL0].y, c[8].y; \n\
MOV o[COL0].z, c[8].z; \n\
MOV o[COL0].w, c[8].w; \n\
MOV o[HPOS].x, v[OPOS].x; \n\
MOV o[HPOS].y, v[OPOS].y; \n\
MOV o[HPOS].z, v[OPOS].z; \n\
MOV o[HPOS].w, c[9].w; \n\
ADD o[TEX0], v[TEX0], c[10]; \n\
ADD o[TEX1], v[TEX0], c[11]; \n\
ADD o[TEX2], v[TEX0], c[12]; \n\
ADD o[TEX3], v[TEX0], c[13]; \n\
END \n";
static CVertexProgram TextureOffsetVertexProgram(TextureOffset);
//-----------------------------------------------------------------------------------------------------------
CBloomEffect::CBloomEffect()
{
_Driver = NULL;
_Scene = NULL;
_SquareBloom = true;
_DensityBloom = 128;
_Init = false;
_InitBloomEffect = false;
}
//-----------------------------------------------------------------------------------------------------------
CBloomEffect::~CBloomEffect()
{
if(_Init)
{
if(!_DisplayInitMat.empty())
{
_DisplayInitMat.getObjectPtr()->setTexture(0, NULL);
if (_Driver) _Driver->deleteMaterial(_DisplayInitMat);
}
_InitText = NULL;
if(!_DisplayBlurMat.empty())
{
_DisplayBlurMat.getObjectPtr()->setTexture(0, NULL);
if (_Driver) _Driver->deleteMaterial(_DisplayBlurMat);
}
if(!_DisplaySquareBlurMat.empty())
{
_DisplaySquareBlurMat.getObjectPtr()->setTexture(0, NULL);
_DisplaySquareBlurMat.getObjectPtr()->setTexture(1, NULL);
if (_Driver) _Driver->deleteMaterial(_DisplaySquareBlurMat);
}
if(!_BlurMat.empty())
{
_BlurMat.getObjectPtr()->setTexture(0, NULL);
_BlurMat.getObjectPtr()->setTexture(1, NULL);
_BlurMat.getObjectPtr()->setTexture(2, NULL);
_BlurMat.getObjectPtr()->setTexture(3, NULL);
if (_Driver) _Driver->deleteMaterial(_BlurMat);
}
_BlurHorizontalTex = NULL;
_BlurFinalTex = NULL;
}
}
//-----------------------------------------------------------------------------------------------------------
void CBloomEffect::init(bool initBloomEffect)
{
_InitBloomEffect = initBloomEffect;
if(((CDriverUser *)_Driver)->getDriver()->supportBloomEffect())
init();
}
//-----------------------------------------------------------------------------------------------------------
void CBloomEffect::init()
{
_WndWidth = _Driver->getWindowWidth();
_WndHeight = _Driver->getWindowHeight();
_BlurWidth = 256;
_BlurHeight = 256;
// initialize textures
_InitText = NULL;
_BlurHorizontalTex = NULL;
_BlurFinalTex = NULL;
if(_InitBloomEffect)
{
initTexture(_InitText, false, _WndWidth, _WndHeight);
}
initTexture(_BlurFinalTex, true, _BlurWidth, _BlurHeight);
initTexture(_BlurHorizontalTex, true, _BlurWidth, _BlurHeight);
// initialize blur material
_BlurMat = _Driver->createMaterial();
CMaterial * matObject = _BlurMat.getObjectPtr();
_BlurMat.initUnlit();
_BlurMat.setColor(CRGBA::White);
_BlurMat.setBlend (false);
_BlurMat.setAlphaTest (false);
matObject->setBlendFunc (CMaterial::one, CMaterial::zero);
matObject->setZWrite(false);
matObject->setZFunc(CMaterial::always);
matObject->setDoubleSided(true);
// initialize stages of fixed pipeline
CRGBA constantCol1(85, 85, 85, 85);
CRGBA constantCol2(43, 43, 43, 43);
// stage 0
matObject->texConstantColor(0, constantCol1);
matObject->texEnvOpRGB(0, CMaterial::Modulate);
matObject->texEnvArg0RGB(0, CMaterial::Texture, CMaterial::SrcColor);
matObject->texEnvArg1RGB(0, CMaterial::Constant, CMaterial::SrcColor);
// stage 1
matObject->texConstantColor(1, constantCol2);
matObject->texEnvOpRGB(1, CMaterial::Mad);
matObject->texEnvArg0RGB(1, CMaterial::Texture, CMaterial::SrcColor);
matObject->texEnvArg1RGB(1, CMaterial::Constant, CMaterial::SrcColor);
matObject->texEnvArg2RGB(1, CMaterial::Previous, CMaterial::SrcColor);
// stage 2
matObject->texConstantColor(2, constantCol1);
matObject->texEnvOpRGB(2, CMaterial::Mad);
matObject->texEnvArg0RGB(2, CMaterial::Texture, CMaterial::SrcColor);
matObject->texEnvArg1RGB(2, CMaterial::Constant, CMaterial::SrcColor);
matObject->texEnvArg2RGB(2, CMaterial::Previous, CMaterial::SrcColor);
// stage 3
matObject->texConstantColor(3, constantCol2);
matObject->texEnvOpRGB(3, CMaterial::Mad);
matObject->texEnvArg0RGB(3, CMaterial::Texture, CMaterial::SrcColor);
matObject->texEnvArg1RGB(3, CMaterial::Constant, CMaterial::SrcColor);
matObject->texEnvArg2RGB(3, CMaterial::Previous, CMaterial::SrcColor);
// initialize display materials
if(_InitBloomEffect)
{
_DisplayInitMat = _Driver->createMaterial();
CMaterial * matObjectInit = _DisplayInitMat.getObjectPtr();
_DisplayInitMat.initUnlit();
_DisplayInitMat.setColor(CRGBA::White);
_DisplayInitMat.setBlend (false);
_DisplayInitMat.setAlphaTest (false);
matObjectInit->setBlendFunc (CMaterial::one, CMaterial::zero);
matObjectInit->setZWrite(false);
matObjectInit->setZFunc(CMaterial::always);
matObjectInit->setDoubleSided(true);
matObjectInit->setTexture(0, _InitText);
}
// initialize linear blur material
_DisplayBlurMat = _Driver->createMaterial();
CMaterial * matObjectFinal = _DisplayBlurMat.getObjectPtr();
_DisplayBlurMat.initUnlit();
_DisplayBlurMat.setColor(CRGBA::White);
matObjectFinal->setBlend(true);
matObjectFinal->setBlendFunc(CMaterial::one, CMaterial::invsrccolor);
matObjectFinal->setZWrite(false);
matObjectFinal->setZFunc(CMaterial::always);
matObjectFinal->setDoubleSided(true);
matObjectFinal->setTexture(0, _BlurFinalTex);
matObjectFinal->texEnvOpRGB(0, CMaterial::Modulate);
matObjectFinal->texEnvArg0RGB(0, CMaterial::Texture, CMaterial::SrcColor);
matObjectFinal->texEnvArg1RGB(0, CMaterial::Constant, CMaterial::SrcColor);
// initialize square blur material
_DisplaySquareBlurMat = _Driver->createMaterial();
matObjectFinal = _DisplaySquareBlurMat.getObjectPtr();
_DisplaySquareBlurMat.initUnlit();
_DisplaySquareBlurMat.setColor(CRGBA::White);
matObjectFinal->setBlend(true);
matObjectFinal->setBlendFunc(CMaterial::one, CMaterial::invsrccolor);
matObjectFinal->setZWrite(false);
matObjectFinal->setZFunc(CMaterial::always);
matObjectFinal->setDoubleSided(true);
matObjectFinal->setTexture(0, _BlurFinalTex);
matObjectFinal->texEnvOpRGB(0, CMaterial::Modulate);
matObjectFinal->texEnvArg0RGB(0, CMaterial::Texture, CMaterial::SrcColor);
matObjectFinal->texEnvArg1RGB(0, CMaterial::Constant, CMaterial::SrcColor);
matObjectFinal->setTexture(1, _BlurFinalTex);
matObjectFinal->texEnvOpRGB(1, CMaterial::Modulate);
matObjectFinal->texEnvArg0RGB(1, CMaterial::Texture, CMaterial::SrcColor);
matObjectFinal->texEnvArg1RGB(1, CMaterial::Previous, CMaterial::SrcColor);
// initialize quads
_DisplayQuad.V0 = CVector(0.f, 0.f, 0.5f);
_DisplayQuad.V1 = CVector(1.f, 0.f, 0.5f);
_DisplayQuad.V2 = CVector(1.f, 1.f, 0.5f);
_DisplayQuad.V3 = CVector(0.f, 1.f, 0.5f);
_BlurQuad.V0 = CVector(-1.f, -1.f, 0.5f);
_BlurQuad.V1 = CVector(1.f, -1.f, 0.5f);
_BlurQuad.V2 = CVector(1.f, 1.f, 0.5f);
_BlurQuad.V3 = CVector(-1.f, 1.f, 0.5f);
_Init = true;
}
//-----------------------------------------------------------------------------------------------------------
void CBloomEffect::initTexture(CSmartPtr<ITexture> & tex, bool isMode2D, uint32 width, uint32 height)
{
NL3D::IDriver *drvInternal = ((CDriverUser *) _Driver)->getDriver();
tex = new CTextureBloom();
tex->setReleasable(false);
tex->resize(width, height);
tex->setFilterMode(ITexture::Linear, ITexture::LinearMipMapOff);
tex->setWrapS(ITexture::Clamp);
tex->setWrapT(ITexture::Clamp);
((CTextureBloom *)tex.getPtr())->mode2D(isMode2D);
if(tex->TextureDrvShare==NULL || tex->TextureDrvShare->DrvTexture.getPtr()==NULL)
{
tex->setRenderTarget(true);
drvInternal->setupTexture(*tex);
}
}
//-----------------------------------------------------------------------------------------------------------
void CBloomEffect::initBloom() // clientcfg
{
if(!((CDriverUser *)_Driver)->getDriver()->supportBloomEffect())
return;
// don't activate bloom when PolygonMode is different from Filled
if (_Driver->getPolygonMode() != UDriver::Filled) return;
if(_Driver->getWindowWidth()==0 || _Driver->getWindowHeight()==0)
return;
if(!_Init)
init();
// if window resize, reinitialize textures
if(_WndWidth!=_Driver->getWindowWidth() || _WndHeight!=_Driver->getWindowHeight())
{
_WndWidth = _Driver->getWindowWidth();
_WndHeight = _Driver->getWindowHeight();
if(_InitBloomEffect)
{
// release old SmartPtr
_DisplayInitMat.getObjectPtr()->setTexture(0, NULL);
_InitText = NULL;
initTexture(_InitText, false, _WndWidth, _WndHeight);
_DisplayInitMat.getObjectPtr()->setTexture(0, _InitText);
}
bool reinitBlurTextures = false;
if(_WndWidth<_BlurWidth || _WndHeight<_BlurHeight)
{
_BlurWidth = raiseToNextPowerOf2(_WndWidth)/2;
_BlurHeight = raiseToNextPowerOf2(_WndHeight)/2;
reinitBlurTextures = true;
}
if(_WndWidth>256 && _BlurWidth!=256)
{
_BlurWidth = 256;
reinitBlurTextures = true;
}
if(_WndHeight>256 && _BlurHeight!=256)
{
_BlurHeight = 256;
reinitBlurTextures = true;
}
if(reinitBlurTextures)
{
// release old SmartPtr
_DisplayBlurMat.getObjectPtr()->setTexture(0, NULL);
_DisplaySquareBlurMat.getObjectPtr()->setTexture(0, NULL);
_DisplaySquareBlurMat.getObjectPtr()->setTexture(1, NULL);
_BlurMat.getObjectPtr()->setTexture(0, NULL);
_BlurMat.getObjectPtr()->setTexture(1, NULL);
_BlurMat.getObjectPtr()->setTexture(2, NULL);
_BlurMat.getObjectPtr()->setTexture(3, NULL);
_BlurHorizontalTex = NULL;
_BlurFinalTex = NULL;
initTexture(_BlurFinalTex, true, _BlurWidth, _BlurHeight);
initTexture(_BlurHorizontalTex, true, _BlurWidth, _BlurHeight);
_DisplayBlurMat.getObjectPtr()->setTexture(0, _BlurFinalTex);
_DisplaySquareBlurMat.getObjectPtr()->setTexture(0, _BlurFinalTex);
_DisplaySquareBlurMat.getObjectPtr()->setTexture(1, _BlurFinalTex);
}
}
NL3D::CTextureUser *txt = (_InitBloomEffect) ? (new CTextureUser(_InitText)) : (new CTextureUser());
if(!((CDriverUser *) _Driver)->setRenderTarget(*txt, 0, 0, _WndWidth, _WndHeight))
{
nlwarning("setRenderTarget return false with initial texture for bloom effect\n");
return;
}
delete txt;
}
//-----------------------------------------------------------------------------------------------------------
void CBloomEffect::endBloom() // clientcfg
{
if(!_Driver->supportBloomEffect() || !_Init)
return;
// don't activate bloom when PolygonMode is different from Filled
if (_Driver->getPolygonMode() != UDriver::Filled) return;
if(_Driver->getWindowWidth()==0 || _Driver->getWindowHeight()==0)
return;
CTextureUser *txt1 = (_InitBloomEffect) ? (new CTextureUser(_InitText)) : (new CTextureUser());
CTextureUser *txt2 = new CTextureUser(_BlurFinalTex);
CRect *rect1 = new CRect(0, 0, _WndWidth, _WndHeight);
CRect *rect2 = new CRect(0, 0, _BlurWidth, _BlurHeight);
// stretch rect
((CDriverUser *) _Driver)->stretchRect(_Scene, *txt1 , *rect1,
*txt2, *rect2);
// horizontal blur pass
doBlur(true);
// vertical blur pass
doBlur(false);
// apply blur with a blend operation
applyBlur();
delete txt1;
delete txt2;
delete rect1;
delete rect2;
}
//-----------------------------------------------------------------------------------------------------------
void CBloomEffect::applyBlur()
{
NL3D::IDriver *drvInternal = ((CDriverUser *) _Driver)->getDriver();
// in opengl, display in init texture
if(_InitBloomEffect)
{
CTextureUser *txt = new CTextureUser(_InitText);
if(!((CDriverUser *) _Driver)->setRenderTarget(*txt, 0, 0, _WndWidth, _WndHeight))
{
nlwarning("setRenderTarget return false with initial texture for bloom effect\n");
return;
}
delete txt;
}
// display blur texture
// initialize blur texture coordinates
if(_InitBloomEffect)
{
_BlurQuad.Uv0 = CUV(0.f, 0.f);
_BlurQuad.Uv1 = CUV(1.f, 0.f);
_BlurQuad.Uv2 = CUV(1.f, 1.f);
_BlurQuad.Uv3 = CUV(0.f, 1.f);
}
else
{
_BlurQuad.Uv0 = CUV(0.f, 1.f);
_BlurQuad.Uv1 = CUV(1.f, 1.f);
_BlurQuad.Uv2 = CUV(1.f, 0.f);
_BlurQuad.Uv3 = CUV(0.f, 0.f);
}
// initialize vertex program
drvInternal->activeVertexProgram(&TextureOffsetVertexProgram);
drvInternal->setConstant(8, 255.f, 255.f, 255.f, 255.f);
drvInternal->setConstant(9, 0.0f, 0.f, 0.f, 1.f);
// initialize blur material
UMaterial displayBlurMat;
if(_SquareBloom)
{
displayBlurMat = _DisplaySquareBlurMat;
}
else
{
displayBlurMat = _DisplayBlurMat;
}
CMaterial * matObjectFinal = displayBlurMat.getObjectPtr();
uint8 d = _DensityBloom;
CRGBA constCoeff(d, d, d, d);
matObjectFinal->texConstantColor(0, constCoeff);
// display quad
UCamera pCam = _Scene->getCam();
_Driver->setMatrixMode2D11();
_Driver->drawQuad(_BlurQuad, displayBlurMat);
_Driver->setMatrixMode3D(pCam);
// disable vertex program
drvInternal->activeVertexProgram(NULL);
}
//-----------------------------------------------------------------------------------------------------------
void CBloomEffect::endInterfacesDisplayBloom() // clientcfg
{
if(_InitBloomEffect)
{
if(!_Driver->supportBloomEffect() || !_Init)
return;
// don't activate bloom when PolygonMode is different from Filled
if (_Driver->getPolygonMode() != UDriver::Filled) return;
if(_Driver->getWindowWidth()==0 || _Driver->getWindowHeight()==0)
return;
NL3D::IDriver *drvInternal = ((CDriverUser *) _Driver)->getDriver();
CTextureUser *txt = new CTextureUser();
((CDriverUser *)_Driver)->setRenderTarget(*txt, 0, 0, 0, 0);
delete txt;
// initialize texture coordinates
float newU = drvInternal->isTextureRectangle(_InitText) ? (float)_WndWidth : 1.f;
float newV = drvInternal->isTextureRectangle(_InitText) ? (float)_WndHeight : 1.f;
_DisplayQuad.Uv0 = CUV(0.f, 0.f);
_DisplayQuad.Uv1 = CUV(newU, 0.f);
_DisplayQuad.Uv2 = CUV(newU, newV);
_DisplayQuad.Uv3 = CUV(0.f, newV);
// init material texture
// CMaterial * matObjectInit = _DisplayInitMat.getObjectPtr();
// display
UCamera pCam = _Scene->getCam();
_Driver->setMatrixMode2D11();
_Driver->drawQuad(_DisplayQuad, _DisplayInitMat);
_Driver->setMatrixMode3D(pCam);
}
}
//-----------------------------------------------------------------------------------------------------------
void CBloomEffect::doBlur(bool horizontalBlur)
{
CVector2f blurVec;
ITexture * startTexture;
ITexture * endTexture;
// set displayed texture and render target texture of the pass
if(horizontalBlur)
{
blurVec = CVector2f(1.f, 0.f);
startTexture = _BlurFinalTex;
endTexture = _BlurHorizontalTex;
}
else
{
blurVec = CVector2f(0.f, 1.f);
startTexture = _BlurHorizontalTex;
endTexture = _BlurFinalTex;
}
NL3D::IDriver *drvInternal = ((CDriverUser *) _Driver)->getDriver();
CTextureUser *txt = new CTextureUser(endTexture);
// initialize render target
if(!((CDriverUser *) _Driver)->setRenderTarget(*txt, 0, 0, _BlurWidth, _BlurHeight))
{
nlwarning("setRenderTarget return false with blur texture for bloom effect\n");
return;
}
delete txt;
// initialize vertex program
drvInternal->activeVertexProgram(&TextureOffsetVertexProgram);
drvInternal->setConstant(8, 255.f, 255.f, 255.f, 255.f);
drvInternal->setConstant(9, 0.0f, 0.f, 0.f, 1.f);
// set several decal constants in order to obtain in the render target texture a mix of color
// of a texel and its neighbored texels on the axe of the pass.
float decalL, decal2L, decalR, decal2R;
if(_InitBloomEffect)
{
decalL = -0.5f;
decal2L = -1.5f;
decalR = 0.5f;
decal2R = 1.5f;
}
else
{
decalL = 0.f;
decal2L = -1.f;
decalR = 1.f;
decal2R = 2.f;
}
drvInternal->setConstant(10, (decalR/(float)_BlurWidth)*blurVec.x, (decalR/(float)_BlurHeight)*blurVec.y, 0.f, 0.f);
drvInternal->setConstant(11, (decal2R/(float)_BlurWidth)*blurVec.x, (decal2R/(float)_BlurHeight)*blurVec.y, 0.f, 0.f);
drvInternal->setConstant(12, (decalL/(float)_BlurWidth)*blurVec.x, (decalL/(float)_BlurHeight)*blurVec.y, 0.f, 0.f);
drvInternal->setConstant(13, (decal2L/(float)_BlurWidth)*blurVec.x, (decal2L/(float)_BlurHeight)*blurVec.y, 0.f, 0.f);
// initialize material textures
CMaterial * matObject = _BlurMat.getObjectPtr();
matObject->setTexture(0, startTexture);
matObject->setTexture(1, startTexture);
matObject->setTexture(2, startTexture);
matObject->setTexture(3, startTexture);
// initialize quad
_BlurQuad.Uv0 = CUV(0.0f, 0.0f);
_BlurQuad.Uv1 = CUV(1.f, 0.0f);
_BlurQuad.Uv2 = CUV(1.f, 1.f);
_BlurQuad.Uv3 = CUV(0.0f, 1.f);
// display
UCamera pCam = _Scene->getCam();
_Driver->setMatrixMode2D11();
_Driver->drawQuad(_BlurQuad, _BlurMat);
// disable render target and vertex program
drvInternal->activeVertexProgram(NULL);
txt = new CTextureUser();
((CDriverUser *)_Driver)->setRenderTarget(*txt, 0, 0, 0, 0);
_Driver->setMatrixMode3D(pCam);
delete txt;
}
}; // NL3D