refactor. ich habe den teil aus dem exampleSphere rausgezogen der generell gebraucht wird. displaySzene() nimmt eine szene an und lässt den raytracer fr jeden Pixel laufen

CMakeLists.txt

@@ -16,4 +16,6 @@ add_executable(Raytracer main.c
         raytrace.c
         raytrace.h
         vectorOp.c
-        vectorOp.h)
+        vectorOp.h
+        interface.c
+        interface.h)

examples.c

@@ -7,22 +7,23 @@
 #include "vectorOp.h"
 #include "raytrace.h"
 #include <stdlib.h>
+#include "interface.h"
 
-void example_color(int width, int height, int channels, unsigned char *image) {
+void example_color(int width, int height, int channels, unsigned char **image) {
     for (int i = 0; i < height * width; i++) {
         int step = i *channels;
         int x = i % width;
         int y = i / width;
-        image[step] = 0 + (int)((((double)x)/width) * 255);
+        (*image)[step] = 0 + (int)((((double)x)/width) * 255);
-        image[step+1] = 0 + (int)((((double)y)/width) * 255);
+        (*image)[step+1] = 0 + (int)((((double)y)/width) * 255);
-        image[step+2] = 0;
+        (*image)[step+2] = 0;
         if (channels == 4) {
-            image[step+3] = 255;
+            (*image)[step+3] = 255;
         }
     }
 }
 
-void exampleSphere( int width, int height, int channels, unsigned char *image) {
+void exampleSphere( int width, int height, int channels, unsigned char **image) {
     camera cam1;
     cam1.origin.x = 0;
     cam1.origin.y = 0;
@@ -37,58 +38,21 @@ void exampleSphere( int width, int height, int channels, unsigned char *image) {
     cam1.height = 1.080;
     vec3 sphereOrigin = (vec3){0,0,5};
     double sphereRadius = 1.0;
-    sphere obj1 = (sphere){sphereOrigin, sphereRadius};
+    sphere obj1 = (sphere){sphereOrigin, sphereRadius,(RGBA){1,0.5,1,1},0};
-    sphere **objectList = (sphere **) calloc(4+1, sizeof(sphere*));;
+    sphere **objectList = (sphere **) calloc(5+1, sizeof(sphere*));;
     objectList[0] = &obj1;
-    sphere obj2 = (sphere){vec3Add(sphereOrigin, (vec3){3,0,0}), sphereRadius};
+    sphere obj2 = (sphere){vec3Add(sphereOrigin, (vec3){3,0,0}), sphereRadius,  (RGBA){1,1,0.5,1},0};
     objectList[1] = &obj2;
-    sphere obj3 = (sphere){vec3Add(sphereOrigin, (vec3){-3,0,0}), sphereRadius};
+    sphere obj3 = (sphere){vec3Add(sphereOrigin, (vec3){-2,1,0}), sphereRadius, (RGBA){1,1,1,1},0};
     objectList[2] = &obj3;
-    sphere obj4 = (sphere){vec3Add(sphereOrigin, (vec3){1,1,3}), sphereRadius};
+    sphere obj4 = (sphere){vec3Add(sphereOrigin, (vec3){1,1,3}), sphereRadius, (RGBA){0.5,1,1,1},0};
     objectList[3] = &obj4;
+    sphere light1 = (sphere){(vec3){2,1,0}, sphereRadius, (RGBA){1,1,1,1},1};
+    objectList[4] = &light1;
+    int objectCount = 5;
 
-    vec3 worldUp = (vec3){0, 1, 0};
-    vec3 screenX = vec3Cross(worldUp, cam1.direction);
-    vec3 screenY = vec3Cross(screenX, cam1.direction);
-    vec3 screenMiddlePoint = vec3Add(cam1.origin, vec3Scale(cam1.direction, cam1.screenDistance));
-    vec3 screenTopLeft = vec3Add(
-        vec3Add(screenMiddlePoint,
-            vec3Scale(screenY, -cam1.height/2.0)),///////////////////////////////////////////////////////////////////////////////////////////////////////////////aendern minus weg
-        vec3Scale(screenX, -cam1.width/2.0)
-        );
-    double pixelStepX = cam1.width / cam1.resolutionX;
-    double pixelStepY = cam1.height / cam1.resolutionY;
-    vec3 vecPixelStepX = vec3Scale(screenX, pixelStepX);
-    vec3 vecPixelStepY = vec3Scale(screenY, pixelStepY);
-    for (int i = 0; i < height * width; i++) {
-        int step = i *channels;
-        int x = i % width;
-        int y = i / width;
-        RGBA pixelColor;
 
-        vec3 *pixelOrigin = (vec3 *)malloc(sizeof(vec3));
+    displaySzene(objectList, objectCount, cam1, width, height, channels, image);
-        *pixelOrigin = vec3Add(screenTopLeft,
-            vec3Add(
-                vec3Scale(vecPixelStepX, x),
-                vec3Scale(vecPixelStepY, y)
-                )
-        );
 
-        ray *lightRay = (ray *)malloc(sizeof(ray));;
-        lightRay->origin = cam1.origin;
-
-        lightRay->direction = vec3Normalize(vec3Subtract(*pixelOrigin, cam1.origin));
-
-        pixelColor = raytraceSphere(objectList, lightRay);
-        free(pixelOrigin);
-        free(lightRay);
-
-        image[step] = (int)(pixelColor.r * 255.0);
-        image[step+1] = (int)(pixelColor.g * 255.0);
-        image[step+2] = (int)(pixelColor.b * 255.0);
-        if (channels == 4) {
-            image[step+3] = 255;
-        }
-    }
     free(objectList);
 }

examples.h

@@ -1,2 +1,2 @@
-void example_color(int, int, int, unsigned char *);
+void example_color(int, int, int, unsigned char **);
-void exampleSphere(int, int, int, unsigned char *);
+void exampleSphere(int, int, int, unsigned char **);

interface.c

@@ -0,0 +1,56 @@
+//
+// Created by ary on 29.07.2026.
+//
+
+#include "interface.h"
+#include "examples.h"
+#include "structs.h"
+#include "vectorOp.h"
+#include "raytrace.h"
+#include <stdlib.h>
+
+void displaySzene(sphere **objectList, int objectCount, camera cam1, int width, int height, int channels, unsigned char **image) {
+    const vec3 worldUp = (vec3){0, 1, 0};
+    vec3 screenX = vec3Cross(worldUp, cam1.direction);
+    vec3 screenY = vec3Cross(screenX, cam1.direction);
+    vec3 screenMiddlePoint = vec3Add(cam1.origin, vec3Scale(cam1.direction, cam1.screenDistance));
+    vec3 screenTopLeft = vec3Add(
+        vec3Add(screenMiddlePoint,
+            vec3Scale(screenY, -cam1.height/2.0)),///////////////////////////////////////////////////////////////////////////////////////////////////////////////aendern minus weg
+        vec3Scale(screenX, -cam1.width/2.0)
+        );
+    double pixelStepX = cam1.width / cam1.resolutionX;
+    double pixelStepY = cam1.height / cam1.resolutionY;
+    vec3 vecPixelStepX = vec3Scale(screenX, pixelStepX);
+    vec3 vecPixelStepY = vec3Scale(screenY, pixelStepY);
+    for (int i = 0; i < height * width; i++) {
+        int step = i *channels;
+        int x = i % width;
+        int y = i / width;
+        RGBA pixelColor;
+
+        vec3 *pixelOrigin = (vec3 *)malloc(sizeof(vec3));
+        *pixelOrigin = vec3Add(screenTopLeft,
+            vec3Add(
+                vec3Scale(vecPixelStepX, x),
+                vec3Scale(vecPixelStepY, y)
+                )
+        );
+
+        ray *lightRay = (ray *)malloc(sizeof(ray));;
+        lightRay->origin = cam1.origin;
+
+        lightRay->direction = vec3Normalize(vec3Subtract(*pixelOrigin, cam1.origin));
+
+        pixelColor = raytraceSphere(objectList, lightRay);
+        free(pixelOrigin);
+        free(lightRay);
+
+        (*image)[step] = (int)(pixelColor.r * 255.0);
+        (*image)[step+1] = (int)(pixelColor.g * 255.0);
+        (*image)[step+2] = (int)(pixelColor.b * 255.0);
+        if (channels == 4) {
+            (*image)[step+3] = 255;
+        }
+    }
+}

interface.h

@@ -0,0 +1,4 @@
+#pragma once
+#include "structs.h"
+
+void displaySzene(sphere **objectList, int objectCount, camera cam1, int width, int height, int channels, unsigned char **image);

main.c

@@ -28,7 +28,7 @@ int main() {
 
 
     //example_color(width, height, channels, image);
-    exampleSphere(width, height, channels, image);
+    exampleSphere(width, height, channels, &image);
 
 
     stbi_write_png("C:/Users/ary/CLionProjects/Raytracer/test.png", width, height, channels, image, width * channels);

structs.h

@@ -14,12 +14,6 @@ struct ray {
     vec3 direction;
 }; typedef struct ray ray;
 
-struct sphere {
-    vec3 origin;
-    double radius;
-    double luminance;
-}; typedef struct sphere sphere;
-
 struct camera {
     vec3 origin;
     vec3 direction;
@@ -33,3 +27,10 @@ struct camera {
 struct rgba {
     double r, g, b, a;
 }; typedef struct rgba RGBA;
+
+struct sphere {
+    vec3 origin;
+    double radius;
+    RGBA color;
+    int isLight;
+}; typedef struct sphere sphere;