Example #1
0
void ParticleSystem::update(float milliseconds, Camera &camera)
{
	updateEmitters(milliseconds);
	updateParticles(milliseconds);

	const mat3 &cameraOrientation = camera.getOrientation();
	mat4 modl(camera.getPosition(),
	          cameraOrientation.getAxisX(),
	          cameraOrientation.getAxisY(),
	          cameraOrientation.getAxisZ());
	updateParticleBatches(modl);
}
Example #2
0
//**************************************************************************************
// Function name    : CFrustum::CalculateFrustum
// Author           : Gary Ingram
// Return type      : void 
// Date Created     : 25/05/2003
// Description      : Calculates the frustum from the modelview and projection 
//                    matrices, The frustrum that is set in this class is a 
//                    static member and so will be the same wherever it is used  
//**************************************************************************************
void CFrustum::CalculateFrustum()
{    
	CMatrix   proj(GL_PROJECTION_MATRIX);
	CMatrix   modl(GL_MODELVIEW_MATRIX);
												//////////////////////////////////////////////
												//Now that we have our modelview and        //
												//projection matrix, if we combine these 2  //
												//matrices, it will give us our clipping    //
												//planes.  To combine 2 matrices, we        //
												//multiply them.                            //
												//////////////////////////////////////////////

	CMatrix clip(proj*modl);

												//////////////////////////////////////////////
												//Now we actually want to get the sides of  //
												//the frustum.  To do this we take the      //
												//clipping planes we received above and     //
												//extract the sides from them.              //
												//////////////////////////////////////////////


												//////////////////////////////////////////////
												//This will extract the RIGHT side of the   //
												//frustum                                   //
												//////////////////////////////////////////////

	m_Frustum[RIGHT][A] = clip.element( 3) - clip.element( 0);
	m_Frustum[RIGHT][B] = clip.element( 7) - clip.element( 4);
	m_Frustum[RIGHT][C] = clip.element(11) - clip.element( 8);
	m_Frustum[RIGHT][D] = clip.element(15) - clip.element(12);

												//////////////////////////////////////////////
												//Now that we have a normal (A,B,C) and a   //
												//distance (D) to the plane, we want to     //
												//normalize that normal and distance.       //
												//////////////////////////////////////////////


												//////////////////////////////////////////////
												//Normalize the RIGHT side                  //
												//////////////////////////////////////////////

	NormalizePlane(RIGHT);

												//////////////////////////////////////////////
												//This will extract the LEFT side of the    //
												//frustum                                   //
												//////////////////////////////////////////////

	m_Frustum[LEFT][A] = clip.element( 3) + clip.element( 0);
	m_Frustum[LEFT][B] = clip.element( 7) + clip.element( 4);
	m_Frustum[LEFT][C] = clip.element(11) + clip.element( 8);
	m_Frustum[LEFT][D] = clip.element(15) + clip.element(12);

												//////////////////////////////////////////////
												//Normalize the LEFT side                   //
												//////////////////////////////////////////////

	NormalizePlane(LEFT);

												//////////////////////////////////////////////
												//This will extract the BOTTOM side of the  //
												//frustum                                   //
												//////////////////////////////////////////////

	m_Frustum[BOTTOM][A] = clip.element( 3) + clip.element( 1);
	m_Frustum[BOTTOM][B] = clip.element( 7) + clip.element( 5);
	m_Frustum[BOTTOM][C] = clip.element(11) + clip.element( 9);
	m_Frustum[BOTTOM][D] = clip.element(15) + clip.element(13);

												//////////////////////////////////////////////
												//Normalize the BOTTOM side                 //
												//////////////////////////////////////////////

	NormalizePlane(BOTTOM);

												//////////////////////////////////////////////
												//This will extract the TOP side of the     //
												//Frustum                                   //
												//////////////////////////////////////////////

	m_Frustum[TOP][A] = clip.element( 3) - clip.element( 1);
	m_Frustum[TOP][B] = clip.element( 7) - clip.element( 5);
	m_Frustum[TOP][C] = clip.element(11) - clip.element( 9);
	m_Frustum[TOP][D] = clip.element(15) - clip.element(13);

												//////////////////////////////////////////////
												//Normalize the TOP side                    //
												//////////////////////////////////////////////

	NormalizePlane(TOP);

												//////////////////////////////////////////////
												//This will extract the BACK side of the    //
												//frustum                                   //
												//////////////////////////////////////////////

	m_Frustum[BACK][A] = clip.element( 3) - clip.element( 2);
	m_Frustum[BACK][B] = clip.element( 7) - clip.element( 6);
	m_Frustum[BACK][C] = clip.element(11) - clip.element(10);
	m_Frustum[BACK][D] = clip.element(15) - clip.element(14);

												//////////////////////////////////////////////
												//Normalize the BACK side                   //
												//////////////////////////////////////////////

	NormalizePlane(BACK);

												//////////////////////////////////////////////
												//This will extract the FRONT side of the   //
												//frustum                                   //
												//////////////////////////////////////////////

	m_Frustum[FRONT][A] = clip.element( 3) + clip.element( 2);
	m_Frustum[FRONT][B] = clip.element( 7) + clip.element( 6);
	m_Frustum[FRONT][C] = clip.element(11) + clip.element(10);
	m_Frustum[FRONT][D] = clip.element(15) + clip.element(14);

												//////////////////////////////////////////////
												//Normalize the FRONT side                  //
												//////////////////////////////////////////////

	NormalizePlane(FRONT);

}
Example #3
0
File: bseqr.c Project: nionjo/dm
int main(int argc, char * argv[]){
    if (argc < 5){
        help();
        return -1;
    }
    char * input = NULL;
    char * arg = NULL;
    int n = 0;
    int i = 0;
    while (i < argc){
        arg = argv[i];
        if (0 == strcmp(arg, "-f")){
            input = argv[++i];
        }
        else if (0 == strcmp(arg, "-n")){
            n = atoi(argv[++i]);
        }
        i += 1;
    }
    if (NULL ==  input){
        fprintf(stderr,"no input data exit(-1)\n");
        return -1;
    }
    FILE * f = NULL;
    if (NULL == (f = fopen(input,"r"))){
        fprintf(stderr, "can not open input file \n");
        return -1;
    }

    int * l = (int*)malloc(sizeof(int) * n);
    double * d = (double*)malloc(sizeof(double) * n);
    memset(l, 0, sizeof(int) * n);
    memset(d, 0, sizeof(double) * n);

    for (int i = 0; i < n; i++){
        d[i] = (double)i;
        fscanf(f, "%d", l + i);
    }
    fclose(f);

    int nd = 0;
    double * LogD = initLogD(n << 1);
    double * sp = modl(d, l, LogD, n, &nd);

    if (nd < 1){
        fprintf(stderr, "no split point\n");
        goto free_malloc;
    }

    int * ol = (int*)d;
    memset(ol, 0, sizeof(int) * n);

    for (int i = 0; i <= nd; i++){
        int b = 0, e = n, c = 0;
        if (i > 0) b = (int)sp[i - 1] + 1;
        if (i < nd) e = (int)sp[i] + 1;

        for (int j = b; j < e; j++) {
            c += l[j];
        }

        if (c > e - b - c){
            for (int j = b; j < e; j++){
                ol[j] = 1;
            }
        }
    }

    free(sp); sp = NULL;
    
    for (int i = 0; i < n; i++){
        printf("%d", ol[i]);
    }
    printf("\n");
    
free_malloc:
    free(LogD); LogD = NULL;
    free(d);  d = NULL;
    free(l);  l = NULL;

    return 0;
}
int main(void)
{
	largeInt l1, l2,l3,sum,diff,product;
	largeNum n1, n2,sumn;
	div_result divi;
	int x,prime_n1,prime_n2;
	printf("Enter 1st number:");
	readint(&l1);
	
	printf("\n");
	printf("Enter 2nd number:");
	readint(&l2);
	printf("\nThe 1st number is :\n");
	showI(l1);
	printf("\nThe 2nd number is :\n");
	showI(l2);
	printf("\n");
	
//	printf("chk_equal=%d",chk_equal(l1,l2));
//	printf("\n");

	
//	showI(increment1(l1));
	
//	fwriteI(l3);

//	printf("\nequal zero: %d",equal_to_zero(n1));

//	shift(&n1,3);
//	showN(n1);
//	shift(&n1,-2);
//	showN(n1); 

//	printf("\nAfter removing all zeroes from left;"); 	
//	rem_all_zeros_from_left(&n1);
//	showN(n1);	
	
//	x=equal_to_zero(l1);
//	printf("\n Value of x: %d\n",x);

//	x=greaterthan(l1,l2);
//	printf("\n Value of x: %d\n",x);
	
	sum=addl(l1,l2); // Addition..
	printf("\n\nSum=");
	showI(sum);
	
//	sumn=add_n_times(n1,2);
//	printf("\nSUM_N=");
//	showN(sumn);
	
	diff=subl(l1,l2);
	printf("\n\nDifference=");
	showI(diff);
	
	product=multl(l1,l2);
	printf("\n\nproduct=");
	showI(product);
	
	printf("\n\n");

//	append_n_zeros_right(&n1,2);
//	showN(n1);
//	remove_one_zero_right(&n1);
//	printf("\n");
//	showN(n1);

	divi=divl(l1,l2);
	showDiv(divi);
	
	printf("\nmodulus of 1st and 2nd number:");
	showI(modl(l1,l2));
	
	x=Isprime(l1);
	if(x==1)
		printf("\nPRIME");
	else
		printf("\nNOT PRIME\n");
	
	return 0;
}