szene mit vier roten kugeln aufgebaut. der renderer unterstuetzt jetzt bis zu 100 objekte

examples.c

@@ -36,8 +36,16 @@ void exampleSphere( int width, int height, int channels, unsigned char *image) {
     cam1.width = 1.920;
     cam1.height = 1.080;
     vec3 sphereOrigin = (vec3){0,0,5};
-    double sphereRadius = 2.0;
-    sphere obj = (sphere){sphereOrigin, sphereRadius};
+    double sphereRadius = 1.0;
+    sphere obj1 = (sphere){sphereOrigin, sphereRadius};
+    sphere **objectList = (sphere **) calloc(4+1, sizeof(sphere*));;
+    objectList[0] = &obj1;
+    sphere obj2 = (sphere){vec3Add(sphereOrigin, (vec3){3,0,0}), sphereRadius};
+    objectList[1] = &obj2;
+    sphere obj3 = (sphere){vec3Add(sphereOrigin, (vec3){-3,0,0}), sphereRadius};
+    objectList[2] = &obj3;
+    sphere obj4 = (sphere){vec3Add(sphereOrigin, (vec3){1,1,3}), sphereRadius};
+    objectList[3] = &obj4;
 
     vec3 worldUp = (vec3){0, 1, 0};
     vec3 screenX = vec3Cross(worldUp, cam1.direction);
@@ -45,7 +53,7 @@ void exampleSphere( int width, int height, int channels, unsigned char *image) {
     vec3 screenMiddlePoint = vec3Add(cam1.origin, vec3Scale(cam1.direction, cam1.screenDistance));
     vec3 screenTopLeft = vec3Add(
         vec3Add(screenMiddlePoint,
-            vec3Scale(screenY, -cam1.height/2.0)),
+            vec3Scale(screenY, -cam1.height/2.0)),///////////////////////////////////////////////////////////////////////////////////////////////////////////////aendern minus weg
         vec3Scale(screenX, -cam1.width/2.0)
         );
     double pixelStepX = cam1.width / cam1.resolutionX;
@@ -71,7 +79,7 @@ void exampleSphere( int width, int height, int channels, unsigned char *image) {
 
         lightRay->direction = vec3Normalize(vec3Subtract(*pixelOrigin, cam1.origin));
 
-        pixelColor = raytraceSphere(&obj, lightRay);
+        pixelColor = raytraceSphere(objectList, lightRay);
         free(pixelOrigin);
         free(lightRay);
 
@@ -82,4 +90,5 @@ void exampleSphere( int width, int height, int channels, unsigned char *image) {
             image[step+3] = 255;
         }
     }
+    free(objectList);
 }