int main (int argc, char *argv[])
{
Vector3f colour_yellow = {{0.8f, 0.8f, 0.1f}};
Material* mat_yellow = MaterialCreate("yellow", colour_yellow);
Vector3f plane1_dir = {{0.0f, 0.0f, 1.0f}};
Primative* plane1 = PrimativeCreatePlane(&plane1_dir, 0.0f, mat_yellow);
Vector3f ray_dir = {{0.0f,2.0f,-1.0f}};
ray_dir = Vector3fNormalize(&ray_dir);
Vector3f ray_or = {{0.0f, 0.0f, 2.0f}};
Ray* r = RayCreate(ray_or, ray_dir);
IntersectPoint* ip = PrimativeIntersect(plane1, r);
int ip_type = IntersectPointGetType(ip);
float ip_dist = IntersectPointGetDistance(ip);
Vector3f* ip_pos = IntersectPointGetPos(ip);
printf("iptype = %d\n", ip_type);
printf("ipdistance = %f\n", ip_dist);
printf("ip position: \n");
Vector3fPrint(ip_pos);
return 0;
}
void test_basic_quaternion_to_eulers(void) {
Vector3F eulers;
Quaternion q = { 1, 0, 0, 0 };
QuaternionToEulers(&q, &eulers);
Vector3fPrint(&eulers);
assert(eulers.a == 0);
assert(eulers.b == 0);
assert(eulers.c == 0);
q.a = -0.0;
q.b = 1.0;
QuaternionToEulers(&q, &eulers);
Vector3fPrint(&eulers);
assert(NearEqual(eulers.a, PI, 0.001));
assert(eulers.b == 0);
assert(eulers.c == 0);
q.a = 0.707141;
q.b = 0.7073;
QuaternionToEulers(&q, &eulers);
Vector3fPrint(&eulers);
assert(NearEqual(eulers.a, PI_DIV_2, 0.001));
assert(eulers.b == 0);
assert(eulers.c == 0);
q.c = q.b;
q.b = 0;
QuaternionToEulers(&q, &eulers);
Vector3fPrint(&eulers);
assert(eulers.a == 0);
assert(NearEqual(eulers.b, PI_DIV_2, 0.001));
assert(eulers.c == 0);
q.d = q.c;
q.c = 0;
QuaternionToEulers(&q, &eulers);
Vector3fPrint(&eulers);
assert(eulers.a == 0);
assert(eulers.b == 0);
assert(NearEqual(eulers.c, PI_DIV_2, 0.001));
}
void test_quaternion_lerp(void) {
Quaternion a, b, c;
QuaternionZero(&a);
Vector3F eulers = {.1, 0, 0};
QuaternionFromEulers(&eulers, &b);
QuaternionLerp(&a, &b, .2, &c);
QuaternionToEulers(&c, &eulers);
Vector3fPrint(&eulers);
assert(NearEqual(eulers.a, 0.02, 0.001));
assert(eulers.b == 0);
assert(eulers.c == 0);
}
void test_quaternion_difference(void) {
Quaternion a, b, c;
Vector3F eulers;
eulers.a = 1;
eulers.b = 0;
eulers.c = 0;
QuaternionFromEulers(&eulers, &a);
eulers.a = .5;
eulers.b = 0;
eulers.c = 0;
QuaternionFromEulers(&eulers, &b);
QuaternionDifference(&a, &b, &c);
QuaternionToEulers(&c, &eulers);
Vector3fPrint(&eulers);
assert(NearEqual(eulers.a, 0.5, 0.001));
assert(eulers.b == 0);
assert(eulers.c == 0);
}
