feat: aspect ration correction

sdf.fs

@@ -4,6 +4,8 @@ R"###(
 out vec4 FragColor;
 in vec2 texCoords;
 
+uniform float aspect;
+
 vec3 center = vec3(0.0,0.0,20.0);
 float radius = 5.0;
 
@@ -89,6 +91,7 @@ vec3 calcNormal(Ray ray){
 void main()
 {
     vec3 dir = vec3((texCoords - 0.5)*2,1.0);
+    dir.x *= aspect;
     vec3 pos = dir;
     Ray ray = Ray(normalize(dir),pos,.0,.0,vec3(.0));
 
@@ -97,7 +100,7 @@ void main()
     vec3 normal = calcNormal(ray);
 
     vec3 lighDir = normalize(vec3(.5,-1.0,0.5));
-    float light = (- min(dot(normal,lighDir),0.0))*0.7+0.3;
+    float light = (- min(dot(normal,lighDir),0.0))*0.85+0.3;
 
     Ray shRay = Ray(lighDir * (-1.0), ray.pos + 0.5*normal , .0,.0, vec3(.0));
     shRay = march(shRay);