《计算机图形学》课内实验报告实验一Word格式.docx
《《计算机图形学》课内实验报告实验一Word格式.docx》由会员分享，可在线阅读，更多相关《《计算机图形学》课内实验报告实验一Word格式.docx（17页珍藏版）》请在冰豆网上搜索。
将opengl32.lib等文件放到VC的的相应文件夹中，即放入如下文件夹：
\ProgramFiles\MicrosoftVisualStudio\VC98\Lib
建立Win32的Console工程，在工程的设置中连接所有可能用到的静态库：
opengl32.lib,glu32.lib;
glaux.lib;
glut32.lib;
glut.lib。
实验源代码：
//HighLevelShaders.c
//OpenGLSuperBible,Chapter21
//Demonstrateshigh-levelshaders
//ProgrambyBenjaminLipchak
#include"
../../Common/OpenGLSB.h"
//SystemandOpenGLStuff
../../Common/GLTools.h"
#include<
stdio.h>
PFNGLDELETEOBJECTARBPROCglDeleteObjectARB;
PFNGLGETHANDLEARBPROCglGetHandleARB;
PFNGLDETACHOBJECTARBPROCglDetachObjectARB;
PFNGLCREATESHADEROBJECTARBPROCglCreateShaderObjectARB;
PFNGLSHADERSOURCEARBPROCglShaderSourceARB;
PFNGLCOMPILESHADERARBPROCglCompileShaderARB;
PFNGLCREATEPROGRAMOBJECTARBPROCglCreateProgramObjectARB;
PFNGLATTACHOBJECTARBPROCglAttachObjectARB;
PFNGLLINKPROGRAMARBPROCglLinkProgramARB;
PFNGLVALIDATEPROGRAMARBPROCglValidateProgramARB;
PFNGLUSEPROGRAMOBJECTARBPROCglUseProgramObjectARB;
PFNGLGETOBJECTPARAMETERIVARBPROCglGetObjectParameterivARB;
PFNGLGETINFOLOGARBPROCglGetInfoLogARB;
PFNGLUNIFORM1FARBPROCglUniform1fARB;
PFNGLGETUNIFORMLOCATIONARBPROCglGetUniformLocationARB;
#ifndef__APPLE__
PFNGLSECONDARYCOLOR3FPROCglSecondaryColor3f;
#endif
GLbooleanuseVertexShader=GL_TRUE;
GLbooleanuseFragmentShader=GL_TRUE;
GLbooleandoBlink=GL_FALSE;
GLbooleanneedsValidation=GL_TRUE;
GLhandleARBvShader,fShader,progObj;
GLintflickerLocation=-1;
GLintwindowWidth=512;
//windowsize
GLintwindowHeight=512;
GLfloatcameraPos[]={100.0f,150.0f,200.0f,1.0f};
#defineMAX_INFO_LOG_SIZE2048
voidLink（GLbooleanfirstTime）
{
GLintsuccess;
glLinkProgramARB（progObj）;
glGetObjectParameterivARB（progObj,GL_OBJECT_LINK_STATUS_ARB,&
success）;
if（!
success）
{
GLbyteinfoLog[MAX_INFO_LOG_SIZE];
glGetInfoLogARB（progObj,MAX_INFO_LOG_SIZE,NULL,infoLog）;
fprintf（stderr,"
Errorinprogramlinkage!
\n"
）;
Infolog:
%s\n"
infoLog）;
Sleep（10000）;
exit（0）;
}
if（firstTime）
glUseProgramObjectARB（progObj）;
//Findoutwheretheflickerconstantlives
flickerLocation=glGetUniformLocationARB（progObj,"
flickerFactor"
//Initiallysettheblinkparameterto1（noflicker）
if（flickerLocation!
=-1）
glUniform1fARB（flickerLocation,1.0f）;
//Programobjecthaschanged,soweshouldrevalidate
needsValidation=GL_TRUE;
}
voidRelink（）
Link（GL_FALSE）;
//Calledtodrawsceneobjects
voidDrawModels（void）
//Drawplanethattheobjectsreston
glColor3f（0.0f,0.0f,0.90f）;
//Blue
glNormal3f（0.0f,1.0f,0.0f）;
glBegin（GL_QUADS）;
glVertex3f（-100.0f,-25.0f,-100.0f）;
glVertex3f（-100.0f,-25.0f,100.0f）;
glVertex3f（100.0f,-25.0f,100.0f）;
glVertex3f（100.0f,-25.0f,-100.0f）;
glEnd（）;
//Drawredcube
glColor3f（1.0f,0.0f,0.0f）;
glutSolidCube（48.0f）;
//Drawgreensphere
glColor3f（0.0f,1.0f,0.0f）;
glPushMatrix（）;
glTranslatef（-60.0f,0.0f,0.0f）;
glutSolidSphere（25.0f,50,50）;
glPopMatrix（）;
//Drawyellowcone
glColor3f（1.0f,1.0f,0.0f）;
glRotatef（-90.0f,1.0f,0.0f,0.0f）;
glTranslatef（60.0f,0.0f,-24.0f）;
glutSolidCone（25.0f,50.0f,50,50）;
//Drawmagentatorus
glColor3f（1.0f,0.0f,1.0f）;
glTranslatef（0.0f,0.0f,60.0f）;
glutSolidTorus（8.0f,16.0f,50,50）;
//Drawcyanoctahedron
glColor3f（0.0f,1.0f,1.0f）;
glTranslatef（0.0f,0.0f,-60.0f）;
glScalef（25.0f,25.0f,25.0f）;
glutSolidOctahedron（）;
//Calledtodrawscene
voidRenderScene（void）
staticGLfloatflickerFactor=1.0f;
//Trackcameraangle
glMatrixMode（GL_PROJECTION）;
glLoadIdentity（）;
gluPerspective（45.0f,1.0f,1.0f,1000.0f）;
glMatrixMode（GL_MODELVIEW）;
gluLookAt（cameraPos[0],cameraPos[1],cameraPos[2],
0.0f,0.0f,0.0f,0.0f,1.0f,0.0f）;
glViewport（0,0,windowWidth,windowHeight）;
//Clearthewindowwithcurrentclearingcolor
glClear（GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT）;
if（doBlink&
&
（flickerLocation!
=-1））
//Pickarandomflickerfactor
flickerFactor+=（（（（GLfloat）rand（））/（（GLfloat）RAND_MAX））-0.5f）*0.1f;
if（flickerFactor>
1.0f）flickerFactor=1.0f;
if（flickerFactor<
0.0f）flickerFactor=0.0f;
glUniform1fARB（flickerLocation,flickerFactor）;
//Validateourshaderbeforefirstuse
if（needsValidation）
glValidateProgramARB（progObj）;
glGetObjectParameterivARB（progObj,GL_OBJECT_VALIDATE_STATUS_ARB,&
Errorinprogramvalidation!
needsValidation=GL_FALSE;
//Drawobjectsinthescene
DrawModels（）;
if（glGetError（）!
=GL_NO_ERROR）
GLError!
//Flushdrawingcommands
glutSwapBuffers（）;
glutPostRedisplay（）;
//Thisfunctiondoesanyneededinitializationontherendering
//context.
voidSetupRC（）
constGLubyte*version;
GLcharARB*vsStringPtr[1];
GLcharARB*fsStringPtr[1];
GLcharARBvsString[]=
"
voidmain（void）\n"
{\n"
//ThisisourHelloWorldvertexshader\n"
//noticehowcommentsareprecededby'
//'
//normalMVPtransform\n"
vec4clipCoord=gl_ModelViewProjectionMatrix*gl_Vertex;
gl_Position=clipCoord;
//Copytheprimarycolor\n"
gl_FrontColor=gl_Color;
//CalculateNDC\n"
vec4ndc=vec4（clipCoord.xyz,0）/clipCoord.w;
//Mapfrom[-1,1]to[0,1]beforeoutputting\n"
gl_FrontSecondaryColor=（ndc*0.5）+0.5;
}\n"
;
GLcharARBfsString[]=
uniformfloatflickerFactor;
//Mixprimaryandsecondarycolors,50/50\n"
vec4temp=mix（gl_Color,vec4（vec3（gl_SecondaryColor）,1.0）,0.5）;
//Multiplybyflickerfactor\n"
gl_FragColor=temp*flickerFactor;
fprintf（stdout,"
High-levelShadersDemo\n\n"
//Makesurerequiredfunctionalityisavailable!
gltIsExtSupported（"
GL_ARB_vertex_shader"
）||
!
GL_ARB_fragment_shader"
）||
GL_ARB_shader_objects"
GL_ARB_shading_language_100"
））
GLSLextensionsnotavailable!
Sleep（2000）;
version=glGetString（GL_VERSION）;
if（（（version[0]!
='
1'
）||（version[1]!
.'
（version[2]<
'
4'
）||（version[2]>
9'
））&
//1.4+
（!
GL_EXT_secondary_color"
）））
NeitherOpenGL1.4norGL_EXT_secondary_color"
extensionisavailable!
glCreateShaderObjectARB=gltGetExtensionPointer（"
glCreateShaderObjectARB"
glCreateProgramObjectARB=gltGetExtensionPointer（"
glCreateProgramObjectARB"
glAttachObjectARB=gltGetExtensionPointer（"
glAttachObjectARB"
glDetachObjectARB=gltGetExtensionPointer（"
glDetachObjectARB"
glDeleteObjectARB=gltGetExtensionPointer（"
glDeleteObjectARB"
glShaderSourceARB=gltGetExtensionPointer（"
glShaderSourceARB"
glCompileShaderARB=gltGetExtensionPointer（"
glCompileShaderARB"
glLinkProgramARB=gltGetExtensionPointer（"
glLinkProgramARB"
glValidateProgramARB=gltGetExtensionPointer（"
glValidateProgramARB"
glUseProgramObjectARB=gltGetExtensionPointer（"
glUseProgramObjectARB"
glGetObjectParameterivARB=gltGetExtensionPointer（"
glGetObjectParameterivARB"
glGetInfoLogARB=gltGetExtensionPointer（"
glGetInfoLogARB"
glUniform1fARB=gltGetExtensionPointer（"
glUniform1fARB"
glGetUniformLocationARB=gltGetExtensionPointer（"
glGetUniformLocationARB"
if（gltIsExtSupported（"
glSecondaryColor3f=gltGetExtensionPointer（"
glSecondaryColor3fEXT"
else
glSecondaryColor3f"
glCreateShaderObjectARB||!
glCreateProgramObjectARB||
glAttachObjectARB||!
glDetachObjectARB||!
glDeleteObjectARB||
glShaderSourceARB||!
glCompileShaderARB||!
glLinkProgramARB||
glValidateProgramARB||!
glUseProgramObjectARB||
glGetObjectParameterivARB||!
glGetInfoLogARB||
glUniform1fARB||!
glGetUniformLocationARB||
glSecondaryColor3f）
Notallentrypointswereavailable!
Controls:
\tRight-clickformenu\n\n"
\tx/X\t\tMove+/-inxdirection\n"
\ty/Y\t\tMove+/-inydirection\n"
\tz/Z\t\tMove+/-inzdirection\n\n"
\tq\t\tExitdemo\n\n"
//Blackbackground
glClearColor（0.0f,0.0f,0.0f,1.0f）;
glSecondaryColor3f（1.0f,1.0f,1.0f）;
//Hiddensurfaceremoval
glEnable（GL_DEPTH_TEST）;
glDepthFunc（GL_LEQUAL）;
glShadeModel（GL_SMOOTH）;
升级会员 