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draw a box, press 'a' to animate

This commit is contained in:
Brian 2007-01-16 15:27:11 -07:00
parent 9d0ae967d4
commit 271d504ed7
1 changed files with 67 additions and 4 deletions
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71
progs/glsl/bump.c
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@ -34,18 +34,20 @@ struct uniform_info {
static struct uniform_info Uniforms[] = {
{ "LightPosition", 3, -1, { 0.57737, 0.57735, 0.57735, 0.0 } },
{ "SurfaceColor", 3, -1, { 0.8, 0.8, 0.2, 0 } },
{ "BumpDensity", 1, -1, { 16.0, 0, 0, 0 } },
{ "BumpSize", 1, -1, { 0.15, 0, 0, 0 } },
{ "BumpDensity", 1, -1, { 10.0, 0, 0, 0 } },
{ "BumpSize", 1, -1, { 0.125, 0, 0, 0 } },
{ "SpecularFactor", 1, -1, { 0.5, 0, 0, 0 } },
{ NULL, 0, 0, { 0, 0, 0, 0 } }
};
static GLint win = 0;
static GLfloat xRot = 0.0f, yRot = 0.0f, zRot = 0.0f;
static GLfloat xRot = 20.0f, yRot = 0.0f, zRot = 0.0f;
static GLuint tangentAttrib;
static GLboolean Anim = GL_FALSE;
static void
CheckError(int line)
@ -74,6 +76,63 @@ Square(GLfloat size)
}
static void
Cube(GLfloat size)
{
/* +X */
glPushMatrix();
glRotatef(90, 0, 1, 0);
glTranslatef(0, 0, size);
Square(size);
glPopMatrix();
/* -X */
glPushMatrix();
glRotatef(-90, 0, 1, 0);
glTranslatef(0, 0, size);
Square(size);
glPopMatrix();
/* +Y */
glPushMatrix();
glRotatef(90, 1, 0, 0);
glTranslatef(0, 0, size);
Square(size);
glPopMatrix();
/* -Y */
glPushMatrix();
glRotatef(-90, 1, 0, 0);
glTranslatef(0, 0, size);
Square(size);
glPopMatrix();
/* +Z */
glPushMatrix();
glTranslatef(0, 0, size);
Square(size);
glPopMatrix();
/* -Z */
glPushMatrix();
glRotatef(180, 0, 1, 0);
glTranslatef(0, 0, size);
Square(size);
glPopMatrix();
}
static void
Idle(void)
{
GLint t = glutGet(GLUT_ELAPSED_TIME);
yRot = t * 0.05;
glutPostRedisplay();
}
static void
Redisplay(void)
{
@ -84,7 +143,7 @@ Redisplay(void)
glRotatef(yRot, 0.0f, 1.0f, 0.0f);
glRotatef(zRot, 0.0f, 0.0f, 1.0f);
Square(2.0);
Cube(1.5);
glPopMatrix();
@ -128,6 +187,10 @@ Key(unsigned char key, int x, int y)
(void) y;
switch(key) {
case 'a':
Anim = !Anim;
glutIdleFunc(Anim ? Idle : NULL);
break;
case 'z':
zRot += step;
break;