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brighter colors

This commit is contained in:
Brian Paul 2000-10-05 21:57:00 +00:00
parent 2c7e6334ec
commit fdf2033bda
1 changed files with 37 additions and 4 deletions
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41
progs/demos/teapot.c
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@ -195,11 +195,15 @@ static void printhelp(void)
static void drawbase(void)
{
static const GLfloat amb[4] = { 1, .5, 0.2, 1 };
static const GLfloat diff[4] = { 1, .4, 0.2, 1 };
int i,j;
float x,y,dx,dy;
glBindTexture(GL_TEXTURE_2D,t1id);
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, amb);
glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, diff);
dx=BASESIZE/BASERES;
dy=-BASESIZE/BASERES;
for(y=BASESIZE/2.0,j=0;j<BASERES;y+=dy,j++) {
@ -219,9 +223,14 @@ static void drawbase(void)
static void drawteapot(void)
{
static const GLfloat amb[4] = { 0.2, 0.2, 0.2, 1 };
static const GLfloat diff[4] = { 0.8, 0.3, 0.5, 1 };
static float xrot=0.0;
static float zrot=0.0;
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, amb);
glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, diff);
glPushMatrix();
glRotatef(lightalpha,0.0,0.0,1.0);
glMultMatrixf((GLfloat *)baseshadow);
@ -421,11 +430,26 @@ static void inittextures(void)
glGenTextures(1,&t2id);
glBindTexture(GL_TEXTURE_2D,t2id);
glPixelTransferf(GL_RED_SCALE, 0.75);
glPixelTransferf(GL_RED_BIAS, 0.25);
glPixelTransferf(GL_GREEN_SCALE, 0.75);
glPixelTransferf(GL_GREEN_BIAS, 0.25);
glPixelTransferf(GL_BLUE_SCALE, 0.75);
glPixelTransferf(GL_BLUE_BIAS, 0.25);
if (!LoadRGBMipmaps("../images/bw.rgb", GL_RGB)) {
fprintf(stderr,"Error reading a texture.\n");
exit(-1);
}
glPixelTransferf(GL_RED_SCALE, 1.0);
glPixelTransferf(GL_RED_BIAS, 0.0);
glPixelTransferf(GL_GREEN_SCALE, 1.0);
glPixelTransferf(GL_GREEN_BIAS, 0.0);
glPixelTransferf(GL_BLUE_SCALE, 1.0);
glPixelTransferf(GL_BLUE_BIAS, 0.0);
glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S,GL_REPEAT);
glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T,GL_REPEAT);
@ -437,17 +461,26 @@ static void inittextures(void)
static void initlight(void)
{
float lamb[4]={0.2,0.2,0.2,1.0};
float lspec[4]={1.0,1.0,1.0,1.0};
float matamb[4] ={0.5, 0.5, 0.5, 1.0};
float matdiff[4]={0.9, 0.2, 0.2, 1.0};
float matspec[4]={1.0,1.0,1.0,1.0};
float lamb[4] ={1.5, 1.5, 1.5, 1.0};
float ldiff[4]={1.0, 1.0, 1.0, 1.0};
float lspec[4]={1.0, 1.0, 1.0, 1.0};
glLightf(GL_LIGHT0,GL_SPOT_CUTOFF,70.0);
glLightf(GL_LIGHT0,GL_SPOT_EXPONENT,20.0);
glLightfv(GL_LIGHT0,GL_AMBIENT,lamb);
glLightfv(GL_LIGHT0,GL_DIFFUSE,ldiff);
glLightfv(GL_LIGHT0,GL_SPECULAR,lspec);
glMaterialf(GL_FRONT_AND_BACK,GL_SHININESS,20.0);
glMaterialfv(GL_FRONT_AND_BACK,GL_SPECULAR,lspec);
glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 15.0);
glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, matdiff);
glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, matspec);
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, matamb);
glLightModelfv(GL_LIGHT_MODEL_AMBIENT, lamb);
glEnable(GL_LIGHT0);
}