How do you calculate the inverse view matrix?
Is that really just the inverse of the view/camera matrix?
Or is that something else?
I have seen articles online on the overall mathematical theory behind it but I am using the GLM math library and it has this nifty glm::inverse() function.
I was just curious if I can do a glm::inverse(ViewMatrix) and that would be correct.
I'm implementing a 4x4 matrix class and all is going well until the inverse function turned up. I'm trying to implement the inverse function, but I can't seem to get my head around it.
I've tried the internet, but found nothing useful. Also, I've looked into source code of other programs/libraries that implement a matrix class, but the code is unreadable.
How I can implement this damn 4x4 inverse function? I know the process of inversion, but putting that process into code is proving quite a challenge.
In addition, I do have some code, but it's unmanageable and inefficient at the moment. If you want to see it, just ask.
Additional question(s): What applications does the inverse matrix have in 3-D?
I write this code for Inverse of matrix in C language . But there is error in determinant function that say "can not convert 'float' to 'float(*)[20]' for argument '1' to 'float determinant(float(*)[20])' " ....
/* a program to calculate inverse of matrix (n*n)*/
//actually one of the way to calculate inverse of matrix is : A^(-1) = 1/|A| * C(t)
that A is matrix and c(t) is taranahade A
#include <stdio.h>;
#include <conio.h>;
#include <string.h>;
#include <stdlib.h>;
const int max=20;
int i , j , n , k , size=0 , row , column ;
float num , det=0 , inverse_matrix[max][max] , matrix[max][max] , new_mat[max][max] , m_minor[max][max] , m_Transpose[max][max];
[Code] .....
I need to find inverse of a matrix data in binary file should be used to form matrix.its not finding inverse correctly rest is working good.
Code:
#include <stdio.h>
void createbin();
void display();
void inverse();
int main()
{
createbin();
display();
inverse();
[Code] ....
I have a program I have been working on where the user selects a date and enters the number of days to be viewed in the Calendar.cshtml view. This input renders another view (Update.cshtml) that contains two date picker boxes, one that should contain the selected date and the second one that should contain the calculated date. I am having an issue getting the date selected in the first view to populate to the first date block on the second view as the default and getting the calculated date to populate the second date block in the Update.cshtml view. In addition given the two dates, I would like to generate a calendar, which is why I chose the date picker approach and setting static dates.
Here is my code:
**CalendarController:**
using System.Web.Mvc;
using VanickCalendarApp.Models;
using System;
namespace VanickCalendarApp.Controllers {
public class CalendarController : Controller {
[Code] .....
I need to take an array, and get the inverse of it (basically, just how you would take an inverse of a function in math). I need to do it where, if a[i] = x, b[x] = i. I would just copy from array a to array b in a function.
View 10 Replies View RelatedPrint the inverse number. Ex: 2178*4=8712
Write down a program which can satisfy the prerequisite and print out the screen.
The answer is:
Code:
void inverse2 ()
{
int i,j;
for (i=1000;i<=9999;i++)
for (j=1;j<=9;j++)
if (i*j==inverse (i))
printf("%5d%2d",i,j);
}
I can't understand the double for loop.
for (i=1000;i<=9999;i++)
for (j=1;j<=9;j++)
And The meaning for
i*j==inverse (i)
I have an adjacent and opposite. I think I can use: tan(x) = opposite / adjacent but how do I get the tangent inverse?
View 10 Replies View Relatedi want to know how i can solve this question? do i need to create a class or write the program codes.
View 12 Replies View RelatedI just want to know the code of the program: Write code to accept matrix as aurgument and display its multiplication matrix which return its multiplication matrix.
View 1 Replies View RelatedI want to assign a matrix to submatrix of a bigger matrix.
ublas::matrix<int> A(8,5);
ublas::matrix<int> B(2,5);
for(size_t i=0;i<A.size1();++i)
for(size_t j=0;j<A.size2();++j)
A(i,j)=i*A.size2()+j+1;
for(size_t i=0;i<B.size1();++i)
for(size_t j=0;j<B.size2();++j)
B(i,j)=i*B.size2()+j+5;
ublas::matrix_range<ublas::matrix<int> > a(A,ublas::range(0,2),ublas::range(0,5));
a=B;
and it works.
but if the matrix is compressed_matrix type, there's something with it. the error log as below:
Check failed in file boost_1_48_0/boost/numeric/ublas/detail/matrix_assign.hpp at line 1078:
detail::expression_type_check (m, cm)
terminate called after throwing an instance of 'boost::numeric::ublas::external_logic'
what(): external logic
Aborted
I'm not sure this is a bug or not.
So I've got a sensor (contains a gyroscope, accelerometer, and magnetometer) that outputs quaternion data. I'm looking to take that data and use it to display the rotation of my sensor in the form of some object on the screen. I've seen instances where programs use a cube, but I'm hoping to figure out a way to have a little more control over what the object I'm rendering is.
how to get started? Are there any software packages that might be able to accomplish this?
I use visual studio 2012. When I asked what I should use in order to put graphics into my program, I was told by the community that SFML works well. My only problem is that now I have SFML, where and how do I unpack it?
View 6 Replies View RelatedI'm new to c++ So I have a project to make. I need to make a cursor like an arrow that will move when inputs are given. e.g if input is given 500 spaces UP it will move up and so on. it should rotate as well like 45 degrees and so on. how to make this arrow WITHOUT USING GRAPHICS.
View 2 Replies View RelatedI have been learning Direct3D for a while now (DX11), and I ran into a bit of a dead end. I have Frank Luna's book on D3D programming, but I feel like I could find a better tutorial out there. I am at the point of writing the vertex shader (the first one he goes over)
Currently, I am using .fx files to write the shaders. Is that right?
How do I use 3D graphics .obj files created with UDK in a C++ project?
View 1 Replies View RelatedI am new to grpahics progamming in/under Borland C. I have included the "graphics.h" header file but i am unable to take input on the screen. If I try to move my cursor to a specified position using gotoxy() function the pointer doesnt moves to the specified location and starts taking input at (1,1) coordinate.
View 1 Replies View RelatedI have to prepare a project. But I don t know how can I do this. Program will find a matrix P for a square matrix A such that P^-1 A P ....
View 15 Replies View RelatedLooking for the binary search program using c Graphics....
View 5 Replies View RelatedI am trying to produce a image using GD graphics library. I can succesfully display my image, however I cant display this image along with a printf function too?
Code:
#include <stdio.h>
#include <gd.h>
int display_picture()
{
gdImagePtr gdImage = gdImageCreate( 50, 50 );
FILE *jpgFile = NULL;
[Code] ....
The picture displays but not hello.
Ive been experimenting with 3d graphics by using SDL only and lines to draw 3d shapes (no OpenGL or extension libraries, just pure math),
Ive used this page mainly to guide me on perspective projection but i have no luck [URL] ....
Ive been trying to draw a cube, but instead it gives me a mirrored dual triangular pyramids
This code here rotates the object as seen from the equations in this link: [URL] ....
double aX, aY, aZ;
for ( i = 0; i < model->qLength; i++ ) {
for ( j = 0; j < 4; j++ ) {
aX = model->quadArr[i].pointArr[j].x;
aY = model->quadArr[i].pointArr[j].y;
aZ = model->quadArr[i].pointArr[j].z;
[Code] .....
generally, i project it onto a 2d plane using: [URL] .....
double dx, dy, dz, dX, dY, dZ;
int bx, by, bX, bY;
for ( i = 0; i < model->qLength; i++ ) {
for ( j = 0; j < 4; j++ ) {
[Code] .....
I understand that my code is very messy and unoptimized, but im just concentrating on getting the core concepts to work with my code
I'm trying to create a GUI with Open graphics Libraries.I have made a basic GUI that exits the program or shows the instructions if a option/Polygon is marked (A bigger one is behind them)But what I'm trying to do now is the following:
0. Start the direct access on the desktop
1. Screen: Press any key to continue
2. Select one option
2.1 Option one: Go to the circuit selection menu
2.1 Option two: View the instructions (Cleared)
2.1 Option three: Exit the game (Cleared)
3. Select a circuit
4. Go to the car selection menu
5. Select a car and start the race
6. Pause menu if Spacebar has been pressed
From the pause menu:
6.1. Go to the main menu
6.2. Restart the race
6.3. Exit
I know that it is OpenGL, but what i'm looking for is C++.How I could do that? What I have cleared is with IF but I'm looking for better alternatives.
Lets say that I try and make a BASIC game with c++, how do I make the animations/graphics for the game (i.e the characters ) Do I need a specific complier/ide (I am using visual studio)
View 11 Replies View RelatedI'm trying to find the errors in my emulation of VGA VRAM concerning graphics modes.
(I'm testing it by doing plotting of all colors from x=0 to x=xsize-1 (where the color is relative, so 0=0 and xsize-1=maxcolor (in the case of 16 colors it's 15, etc.)))
VRAM Graphics management:
#include "headers/types.h" //Basic type support!
#include "headers/hardware/ports.h" //Basic PORT compatibility!
#include "headers/hardware/vga.h" //VGA data!
#include "headers/mmu/mmu.h" //For CPU passtrough!
#include "headers/hardware/vga_screen/vga_displaygeneration_crtcontroller.h" //For virtual width in bytes within VRAM!
[Code] .....
I have a college project which is a car racing game using C++ and the old-school graphics library BGI. After I draw the map and placed the objects(Car,obstacles,road's borders etc..)I added Sleep(); function to the function named Obstacles(); but the problem is, I can't move the car with the right&left arrows.a
Another problem,If I added a cleardevice(); command all objects disappears only the obstacles function keeps working. the Code is here:
char c;
do{
c = (char)getch();
if (c == KEY_LEFT) {
x = x - 10, x1 = x1 - 10;
} if (c == KEY_RIGHT) {
x = x + 10, x1 = x1 + 10;
[code].....
note: this is not the whole code, it's only a small portion of it, not a debugging question only need a hint how to fix it.
I needed to know if there is any possible way to make a colorful text in graphics mode
Like each letter will have different colors using setcolor(random(20));