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playing with sphere size

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This commit is contained in:
Volodymyr Patuta 2020-12-18 08:41:32 +01:00
parent 944c019589
commit 305a814484
3 changed files with 6 additions and 6 deletions
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6
geometry.c
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@ -102,7 +102,7 @@ surface_t * mkCube(void) {
/*!\brief fabrique et renvoie une surface représentant une sphère
* centrée en zéro et de rayon 1. Elle est découpée en \a longitudes
* longitudes et \a latitudes latitudes. */
surface_t * mkSphere(int longitudes, int latitudes) {
surface_t * mkSphere(int longitudes, int latitudes, double s) {
triangle_t * t;
vertex_t * data;
double phi, theta, r, y;
@ -118,8 +118,8 @@ surface_t * mkSphere(int longitudes, int latitudes) {
assert(t);
for(z = 0, k = 0; z <= latitudes; ++z) {
theta = -M_PI_2 + z * cMPI_Lat;
y = sin(theta);
r = cos(theta);
y = sin(theta) * s;
r = cos(theta) * s;
for(x = 0; x <= longitudes; ++x, ++k) {
phi = x * c2MPI_Long;
data[k].position.x = r * cos(phi);

2
moteur.h
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@ -155,7 +155,7 @@ extern "C" {
/* dans geometry.c */
extern surface_t * mkQuad(void);
extern surface_t * mkCube(void);
extern surface_t * mkSphere(int longitudes, int latitudes);
extern surface_t * mkSphere(int longitudes, int latitudes, double s);
# ifdef __cplusplus
}
# endif

4
window.c
View File

@ -91,10 +91,10 @@ void init(void) {
GLuint id, id2;
/*vec4 g = {0, 1, 0, 1};*/
/* on créé nos trois type de surfaces */
_sun = mkSphere(12, 12); /* ça fait 12x12x2 trianles ! */
_sun = mkSphere(12, 12, 2); /* ça fait 12x12x2 trianles ! */
/* on change les couleurs de surfaces */
/*_sun->dcolor = g; */
_mercury = mkSphere(12,12);
_mercury = mkSphere(12,12, 0.3);
id = getTexFromBMP("images/2k-sun.bmp");
id2 = getTexFromBMP("images/2k-mercury.bmp");
setTexId(_sun, id);