Ajout version Release/x64 avec les libraries x64 et tuning de la version Debug

SQCSim2021/external/sfml251/examples/island/resources/terrain.frag

@@ -0,0 +1,11 @@
+varying vec3 normal;
+uniform float lightFactor;
+
+void main()
+{
+    vec3 lightPosition = vec3(-1.0, 1.0, 1.0);
+    vec3 eyePosition = vec3(0.0, 0.0, 1.0);
+    vec3 halfVector = normalize(lightPosition + eyePosition);
+    float intensity = lightFactor + (1.0 - lightFactor) * dot(normalize(normal), normalize(halfVector));
+    gl_FragColor = gl_Color * vec4(intensity, intensity, intensity, 1.0);
+}