void shader_cube(float *x, float *y, uint32_t *color)
{
olPushMatrix3();
olLoadIdentity3();
// Shrink down the entire final image a bit, to avoid cutting off the cube's
// left and right corners while it's rotating. On a bitmap display (PC) this
// doesn't matter, but on the laser without shading it looks bad if the edge
// suddenly scissors off.
olScale3( 0.9, 0.9, 0.9);
// This transform sets it up so that it's identity at the cube's front face
// (z = -4)
olFrustum(-1, 1, -1, 1, FACEDEPTH, 100);
// Now figure out the z-position depending on the rotation of the cube, to
// make the frontmost edge always be full-height.
float theta = cubepos < 0 ? -cubepos : cubepos;
float zdelta = -1 - FACEDEPTH + 1 * (sinf(M_PI/4) - sinf(M_PI/4 + theta));
olTranslate3(0, 0, zdelta);
// Perform the rotation
olRotate3Y(cubepos);
// And finally transform the incoming vertex
float z = 1;
olTransformVertex3(x, y, &z);
olPopMatrix3();
}
static VALUE
ol_rotate3Y(VALUE self, VALUE v)
{
olRotate3Y(NUM2DBL(v));
return Qnil;
}
int main (int argc, char *argv[])
{
OLRenderParams params;
memset(¶ms, 0, sizeof params);
params.rate = 48000;
params.on_speed = 2.0/100.0;
params.off_speed = 2.0/20.0;
params.start_wait = 8;
params.start_dwell = 3;
params.curve_dwell = 0;
params.corner_dwell = 8;
params.curve_angle = cosf(30.0*(M_PI/180.0)); // 30 deg
params.end_dwell = 3;
params.end_wait = 7;
params.snap = 1/100000.0;
params.render_flags = RENDER_GRAYSCALE;
if(olInit(3, 30000) < 0)
return 1;
olSetRenderParams(¶ms);
float time = 0;
float ftime;
int i,j;
int frames = 0;
while(1) {
olLoadIdentity3();
olLoadIdentity();
olPerspective(60, 1, 1, 100);
olTranslate3(0, 0, -3);
for(i=0; i<2; i++) {
if (i == 1)
olColor3(0.0,1.0,0.0);
else
olColor3(0.0,1.0,0.0);
olScale3(0.6, 0.6, 0.6);
olRotate3Z(time * M_PI * 0.1);
olRotate3Y(time * M_PI * 0.8);
olRotate3X(time * M_PI * 0.73);
olBegin(OL_LINESTRIP);
olVertex3(-1, -1, -1);
olVertex3( 1, -1, -1);
olVertex3( 1, 1, -1);
olVertex3(-1, 1, -1);
olVertex3(-1, -1, -1);
olVertex3(-1, -1, 1);
olEnd();
olBegin(OL_LINESTRIP);
olVertex3( 1, 1, 1);
olVertex3(-1, 1, 1);
olVertex3(-1, -1, 1);
olVertex3( 1, -1, 1);
olVertex3( 1, 1, 1);
olVertex3( 1, 1, -1);
olEnd();
olBegin(OL_LINESTRIP);
olVertex3( 1, -1, -1);
olVertex3( 1, -1, 1);
olEnd();
olBegin(OL_LINESTRIP);
olVertex3(-1, 1, 1);
olVertex3(-1, 1, -1);
olEnd();
}
ftime = olRenderFrame(60);
frames++;
time += ftime;
printf("Frame time: %f, FPS:%f\n", ftime, frames/time);
}
olShutdown();
exit (0);
}
void render_cubes(float time)
{
int i;
OLRenderParams mpar;
memcpy(&mpar, ¶ms, sizeof(OLRenderParams));
if (time > 32) {
time += 1.0;
mpar.on_speed = 0.022 + (1-usin(time, 2.0)) * 0.02;
mpar.corner_dwell = 8*usin(time, 2.0);
mpar.start_dwell = 2+3*usin(time, 2.0);
mpar.start_wait = 3+5*usin(time, 2.0);
mpar.end_dwell = 2+3*usin(time, 2.0);
mpar.end_wait = 2*usin(time, 2.0);
olSetRenderParams(&mpar);
time -= 1.0;
}
printf("%f %d %d %d %d %d\n", mpar.on_speed, mpar.corner_dwell, mpar.start_dwell, mpar.start_wait, mpar.end_dwell, mpar.end_wait);
olLoadIdentity3();
olPerspective(60, 1, 1, 100);
olTranslate3(0, 0, -2.1);
for(i=0; i<3; i++) {
if (i>0)
olPushMatrix3();
olScale3(0.6, 0.6, 0.6);
if (i>0) {
float tx = sinf(time + (i-1)*M_PI);
float ty = cosf(time + (i-1)*M_PI);
float tz = sinf(time + (i-1)*M_PI);
float s = sinf(0.6*time);
olTranslate3(tx*s,ty*s,tz*s);
//olScale3(s,s,s);
olScale3(0.3,0.3,0.3);
}
float mult;
if (i==0)
mult = 1;
else if (i==1)
mult = 1.5;
else if (i==2)
mult = -1.5;
if (i==0)
olMultColor(C_GREY(120));
else
olResetColor();
olRotate3Z(mult*time * M_PI * 0.1 / 3.0);
olRotate3Y(mult*time * M_PI * 0.8 / 3.0);
olRotate3X(mult*time * M_PI * 0.73 / 3.0);
olBegin(OL_LINESTRIP);
olVertex3(-1, -1, -1, C_RED);
olVertex3( 1, -1, -1, C_RED);
olVertex3( 1, 1, -1, C_RED);
olVertex3(-1, 1, -1, C_RED);
olVertex3(-1, -1, -1, C_RED);
olVertex3(-1, -1, 1, C_RED);
olEnd();
olBegin(OL_LINESTRIP);
olVertex3( 1, 1, 1, C_GREEN);
olVertex3(-1, 1, 1, C_GREEN);
olVertex3(-1, -1, 1, C_GREEN);
olVertex3( 1, -1, 1, C_GREEN);
olVertex3( 1, 1, 1, C_GREEN);
olVertex3( 1, 1, -1, C_GREEN);
olEnd();
olBegin(OL_LINESTRIP);
olVertex3( 1, -1, -1, C_RED);
olVertex3( 1, -1, 1, C_RED);
olEnd();
olBegin(OL_LINESTRIP);
olVertex3(-1, 1, 1, C_GREEN);
olVertex3(-1, 1, -1, C_GREEN);
olEnd();
/*olBegin(OL_BEZIERSTRIP);
olVertex3(-1, 1, 0, C_WHITE);
olVertex3(0, -1, 0, C_WHITE);
olVertex3(0, -1, 0, C_WHITE);
olVertex3(1, 1, 0, C_WHITE);
olVertex3(-1, 0, 0, C_WHITE);
olVertex3(-1, 0, 0, C_WHITE);
olVertex3(1, -1, 0, C_WHITE);
olVertex3(0, 1, 0, C_WHITE);
olVertex3(0, 1, 0, C_WHITE);
olVertex3(-1, -1, 0, C_WHITE);
olVertex3(1, 0, 0, C_WHITE);
olVertex3(1, 0, 0, C_WHITE);
olVertex3(-1, 1, 0, C_WHITE);
olEnd();*/
if (i>0)
olPopMatrix3();
}
olLoadIdentity3();
olLoadIdentity();
olSetRenderParams(¶ms);
olResetColor();
}
