Metaball2
From SWWorkshop
Previous example we tell glow effect. We prepare with photoshop and render on screen. Now we use two textures with animated opposite direction. When they overlapped a glow effect will create.
ScreenShot
Source Code
#include "../../include/SWEngine.h" #pragma comment (lib,"../../lib/SWUtil.lib") #pragma comment (lib,"../../lib/SWTypes.lib") #pragma comment (lib,"../../lib/SWCore.lib") #pragma comment (lib,"../../lib/SWEngine.lib") #pragma comment (lib,"../../lib/SWGame.lib") #pragma comment (lib,"../../lib/SWGui.lib") #pragma comment (lib,"../../lib/SWServices.lib") swApplication metaballApp2; typedef struct _Metaball{ swRect target; int xModifierID; int imgID; }Metaball; Metaball mb1,mb2; //------------------------------------------------------------------------------------------- void reflectMetaballEffect(Metaball *mb){ swGraphicsSetColor0(1,1,1,0.45); swGraphicsRenderImg0(mb->imgID,&mb->target); } //------------------------------------------------------------------------------------------- void GameLoop(){ swValueModifierExecute(mb1.xModifierID,0.015); swValueModifierExecute(mb2.xModifierID,0.015); swGraphicsBeginScene(); swGraphicsSetBlendingMode(SW_BLENDING_MODE_ADDITIVE); swGraphicsSetBgColor0(0,0,0); reflectMetaballEffect(&mb1); reflectMetaballEffect(&mb2); swGraphicsEndScene(); } //------------------------------------------------------------------------------------------- int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nShowCmd) { //Application Settings metaballApp2.hInstance=hInstance; metaballApp2.fullScreen=false; metaballApp2.cursor=true; metaballApp2.width=800; metaballApp2.height=600; metaballApp2.title="Metaball2"; metaballApp2.path="\\rsc\\Metaball2\\"; metaballApp2.appRun=GameLoop; //Application Execution swEngineInit(&metaballApp2); //Metaball1 swRectSet(&mb1.target,100,250,256,256); mb1.xModifierID=swValueModifierCreate(SW_VALUE_MODIFIER_010_LOOP,&mb1.target.x,100,600,100,0); mb1.imgID=swGraphicsCreateImg("Ball1.tga"); //Metaball2 swRectSet(&mb2.target,600,250,256,256); mb2.xModifierID=swValueModifierCreate(SW_VALUE_MODIFIER_010_LOOP,&mb2.target.x,100,600,100,0); mb2.imgID=swGraphicsCreateImg("Ball1.tga"); swEngineRun(); swEngineExit(); return 0; }
