bild wurde dunkler bei erhoehung der rraysPerPixel. das wurde gefixxt.

raytrace.c

@@ -7,14 +7,16 @@
 
 RGBA raytraceSphere(sphere **objectList, ray *lightray) {
     RGBA pixel = (RGBA){0,0,0,0};
-    const int lightBounces = 5;
+    const int lightBounces = 2;
     sphere **spheresHitList = (sphere **)calloc( (lightBounces + 1),sizeof(sphere*) );
     vec3 *spheresNormalList = (vec3 *)calloc( lightBounces + 1,sizeof(vec3) );
     int hitLightIndex = -1;
     vec3 sphereNormal;
-    int raysPerPixel = 1;
+    int raysPerPixel = 50;
+    ray originalRay = *lightray;
 
     for (int k = 0; k < raysPerPixel; k++) {
+        *lightray = originalRay;
         RGBA tempPixel = (RGBA){1,1,1,1};
         sphere *nearestSphere = nullptr;
         vec3 nearestCollisionPoint = {10000,10000,10000};
@@ -62,7 +64,11 @@ RGBA raytraceSphere(sphere **objectList, ray *lightray) {
             tempPixel = (RGBA){0,0,0,1};
         }
         else
-        {   pixel = spheresHitList[firstLightHitIndex]->color;
+        {
+            pixel.r += spheresHitList[firstLightHitIndex]->color.r;
+            pixel.g += spheresHitList[firstLightHitIndex]->color.g;
+            pixel.b += spheresHitList[firstLightHitIndex]->color.b;
+            pixel.a += spheresHitList[firstLightHitIndex]->color.a;
             for (int i = firstLightHitIndex - 1; i >= 0; i--) {
                 tempPixel.r = tempPixel.r * spheresHitList[i]->color.r;
                 tempPixel.g = tempPixel.g * spheresHitList[i]->color.g;