/**
* Modified function found on the official OpenGL wiki.
* http://www.opengl.org/wiki/GluPerspective_code
* Used to replace gluPerspective (Fixed function deprecated?)
*/
void glhPerspectivef2(GLfloat *matrix, GLfloat fovyInDegrees,
GLfloat aspectRatio, GLfloat znear, GLfloat zfar)
{
float ymax, xmax;
//float temp, temp2, temp3, temp4;
ymax = znear * tanf(fovyInDegrees * M_PI / 360.0);
//ymin = -ymax;
//xmin = -ymax * aspectRatio;
xmax = ymax * aspectRatio;
glhFrustumf2(matrix, -xmax, xmax, -ymax, ymax, znear, zfar);
}
void glhPerspectivef2(
float *matrix,
float fovyInDegrees,
float aspectRatioV,
float znear,
float zfar
)
{
float ymax, xmax;
ymax = znear * tan(fovyInDegrees * M_PI / 360.0);
//ymin = -ymax;
//xmin = -ymax * aspectRatioV;
xmax = ymax * aspectRatioV;
glhFrustumf2(matrix, -xmax, xmax, -ymax, ymax, znear, zfar);
}