roland
Joined: 11 Feb 2006
Posts: 13
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 Posted: Tue Feb 28, 2006 10:54 am Post subject: Rotation of View Matrix for SceGumLookAt ... PLEASE HELP! |
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I am slowly loosing my head on this problem..
I am trying to navigate through a small little world of 3d objects and would like to implement a FPS Like camera using SceGumLookAt.
I read tons of Tutorials and the best I came up with now is an orbiting Camera.. I am a real n00b in regards of Vector Math etc. so I am really hoping that this time, somebody out there can help me..
This is the code I use:
| Code: |
static void mult_matvec(const ScePspFMatrix4 *m,
const ScePspFVector4 *vi, ScePspFVector3 *vo)
{
vo->x = m->x.x*vi->x+m->y.x*vi->y+m->z.x*vi->z+m->w.x*vi->w;
vo->y = m->x.y*vi->x+m->y.y*vi->y+m->z.y*vi->z+m->w.y*vi->w;
vo->z = m->x.z*vi->x+m->y.z*vi->y+m->z.z*vi->z+m->w.z*vi->w;
}
// Camera
sceGumMatrixMode(GU_VIEW);
sceGumLoadIdentity();
sceGumPushMatrix();
sceGumRotateX(SCEGU_RAD(CurrentRotationX));
sceGumRotateZ(SCEGU_RAD(CurrentRotationZ));
sceGumStoreMatrix(&m);
vec2.x = center.x;
vec2.y = center.y;
vec2.z = center.z;
vec2.w = 1.0f;
mult_matvec(&m, &vec2, ¢er);
vec2.x = eye.x;
vec2.y = eye.y;
vec2.z = eye.z;
vec2.w = 0.0f;
mult_matvec(&m, &vec2, &eye);
sceGumPopMatrix();
sceGumLookAt( &eye, ¢er, &up ); // Set viewpoint matrix
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Thank you in advance for your help!!
roland |
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