OpenGL스터디 실습 코드 - Revision history

imported>hit0473 at 23:53, 8 July 2013

2013-07-08T23:53:09Z

← Older revision		Revision as of 23:53, 8 July 2013
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	== 점 크기 조절 및 안티알리어싱 적용 ==		== 나선모양으로 찍힌 점 크기 조절 및 안티알리어싱 적용 ==

	/* @skyLibrary		/* @skyLibrary

imported>hit0473 at 23:52, 8 July 2013

2013-07-08T23:52:37Z

← Older revision		Revision as of 23:52, 8 July 2013
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	= chapter 3. 공간 내의 드로윙, 지오메트리와 버퍼 =		= chapter 3. 공간 내의 드로윙, 지오메트리와 버퍼 =

	~~== 나선형 점그리기 ==~~

	== 점 크기 조절 및 안티알리어싱 적용 ==		== 점 크기 조절 및 안티알리어싱 적용 ==

imported>hit0473 at 23:52, 8 July 2013

2013-07-08T23:52:20Z

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imported>hit0473 at 23:51, 8 July 2013

2013-07-08T23:51:44Z

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imported>hit0473 at 23:51, 8 July 2013

2013-07-08T23:51:30Z

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imported>hit0473 at 23:43, 8 July 2013

2013-07-08T23:43:13Z

← Older revision		Revision as of 23:43, 8 July 2013
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	= chapter 2. OpenGL 맛보기 =		= chapter 2. OpenGL 맛보기 =

	~~== 사각형그리기(Rectangle) ==~~

	== 사각형 애니메이션(RecAnime) ==		== 사각형 애니메이션(RecAnime) ==

imported>hit0473 at 23:43, 8 July 2013

2013-07-08T23:43:05Z

← Older revision		Revision as of 23:43, 8 July 2013
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	== 사각형 애니메이션(RecAnime) ==		== 사각형 애니메이션(RecAnime) ==

			#include <gl/glut.h>
			#include <gl/GL.h>
			#include <gl/GLU.h>

			GLfloat x1 = 0.0f;
			GLfloat y1 = 0.0f;
			GLfloat rsize = 25;

			GLfloat xstep = 1.0f;
			GLfloat ystep = 1.0f;

			GLfloat windowWidth;
			GLfloat windowHeight;


			//callback for rendering
			void RenderScene(void)
			{
			glClear(GL_COLOR_BUFFER_BIT);

			glColor3f(1.0f, 0.0f, 0.0f);

			glRectf(x1, y1, x1+rsize, y1-rsize);

			glutSwapBuffers();
			}

			//callback for timer
			void TimerFunction(int value)
			{
			//if rectangle collision to window x-axis wall, then reverse it's x-axis direction
			if(x1 > windowWidth - rsize \|\| x1 < -windowWidth)
			xstep = -xstep;

			//if rectangle collision to window y-axis wall, then reverse it's y-axis direction
			if(y1 >windowHeight \|\| y1 < -windowHeight + rsize )
			ystep = -ystep;

			x1 += xstep;
			y1 += ystep;

			if(x1 > windowWidth - rsize + xstep)
			x1 = windowWidth - rsize - 1;
			else if(x1 < -(windowWidth + xstep))
			x1 = -windowWidth - 1;

			if(y1 > (windowHeight + ystep))
			y1 = windowHeight - 1;
			else if(y1 < -(windowHeight - rsize +ystep))
			y1 = -windowHeight + rsize - 1;

			glutPostRedisplay();
			glutTimerFunc(33, TimerFunction, 1);
			}

			void SetupRC()
			{
			glClearColor(0.0f, 0.0f, 1.0f, 1.0f);
			}

			void ChangeSize(GLsizei w, GLsizei h)
			{
			GLfloat aspectRatio;

			if(h==0)
			h = 1;

			glViewport(0,0,w,h);

			glMatrixMode(GL_PROJECTION);
			glLoadIdentity();

			aspectRatio = (GLfloat)w/(GLfloat)h;
			if(w<=h)
			{
			windowWidth = 100;
			windowHeight = 100/aspectRatio;
			glOrtho(-100.0, 100.0, -windowHeight, windowHeight, 1.0, -1.0);
			}
			else
			{
			windowWidth = 100*aspectRatio;
			windowHeight = 100;
			glOrtho(-windowWidth, windowWidth, -100.0, 100.0, 1.0, -1.0);
			}
			glMatrixMode(GL_MODELVIEW);
			glLoadIdentity();
			}


			void main(void)
			{
			glutInitDisplayMode(GLUT_DOUBLE \| GLUT_RGB);
			glutInitWindowSize(800, 600);
			glutCreateWindow("simple -> GLRect -> Bounce");
			glutDisplayFunc(RenderScene);
			glutReshapeFunc(ChangeSize);
			glutTimerFunc(33, TimerFunction, 1);
			SetupRC();
			glutMainLoop();
			}
	= chapter 3. 공간 내의 드로윙, 지오메트리와 버퍼 =		= chapter 3. 공간 내의 드로윙, 지오메트리와 버퍼 =

imported>hit0473 at 08:44, 8 July 2013

2013-07-08T08:44:09Z

← Older revision		Revision as of 08:44, 8 July 2013
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	return 1;		return 1;
	}		}

			= Chapter4. 지오메트리 변환과 파이프라인 =

			== 토러스(Torus) ==

			== 액터와 카메라를 통한 3D시점 변경 ==

imported>hit0473 at 13:21, 7 July 2013

2013-07-07T13:21:01Z

← Older revision		Revision as of 13:21, 7 July 2013
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	* Date : 2013/7/7 ~ 2013/7/7		* Date : 2013/7/7 ~ 2013/7/7
	* How to use :		* How to use :
	* ~~1. use up, down, left, right key in your key board to move star in that way.~~		* just look.
	* 2. click mouse right button and you can change the star shape statements by click each menu item.
	* Purpose :		* Purpose :
	* just practice OpenGL.		* just practice OpenGL.

imported>hit0473 at 13:20, 7 July 2013

2013-07-07T13:20:22Z

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