multiple labmda

michelson.frag

@@ -8,13 +8,15 @@ out vec4 finalColor;
 
 uniform vec2 center;
 uniform float screenHeight;
-uniform vec2 resolution;
+//uniform vec2 resolution;
 uniform float d1;
 uniform float d2;
-uniform float lambda;
+//uniform float lambda;
 uniform float angleM1;
 uniform float angleM1_Y;
 uniform float zoom;
+uniform float lambdas[10];
+uniform int lambdasCount;
 
 const float PI = 3.14159265359;
 
@@ -45,26 +47,43 @@ void main() {
     float relX = (pixelX - center.x) * zoom;
     float relY = (pixelY - center.y) * zoom;
    
-    vec3 baseColorVec = WavelengthToRGB(lambda);
 
     // r^2
     float radiusSq = relX * relX + relY * relY;
 
     // Diff de marche lamme d'air 2 * e cos(i) mais petits angles => cos(i) ~ 1 - i^2/2 mais i ~ r/f et r^2 = x^2 + y^2
-    float ringFactor = radiusSq * 0.065;
+    float ringFactorBase = radiusSq * 0.065;
 
     // Diff de marche du au coin d'air
-    float wDelta = (relX * angleM1 + relY * angleM1_Y) * 200.0f;
+    float wDelta = (relX * angleM1 + relY * angleM1_Y) * 200.0;
 
-    float currDelta = deltaLnm - ringFactor + wDelta;
+    float currDeltaBase = deltaLnm + wDelta;
 
-    // Formule de Fresnel : I = I_0 * cos^2(phi)
-    float K = PI / lambda;
-    float phase = currDelta * K;
-    float intensity = cos(phase);
-    intensity = intensity * intensity;
+    float currDelta = deltaLnm - ringFactorBase + wDelta;
 
-    vec3 finalVec = baseColorVec * intensity;
+    vec3 accumColor = vec3(0.0);
 
-    finalColor = vec4(finalVec, 1.0);
+    for(int i = 0; i < 10; i++) {
+        if (i >= lambdasCount) break;
+        float l = lambdas[i];
+        vec3 baseColorVec = WavelengthToRGB(l);
+        float currDelta = currDeltaBase - ringFactorBase;
+        float K = PI / l;
+        float phase = currDelta * K;
+        float intensity = cos(phase);
+        intensity = intensity * intensity;
+        accumColor += baseColorVec * intensity;
+    }
+
+ //   finalColor = vec4(accumColor, 1.0);
+
+//    float K = PI / lambda;
+//    float phase = currDelta * K;
+//    float intensity = cos(phase);
+//    intensity = intensity * intensity;
+
+//    vec3 finalVec = baseColorVec * intensity;
+
+    //finalColor = vec4(finalVec, 1.0);
+    finalColor = vec4(accumColor, 1.0);
 }