SSSSS comments

1 files changed, 9 insertions, 21 deletions

diff --git a/shaders/frag_irradiance.glsl b/shaders/frag_irradiance.glsl
index 1bcbc99..b985acf 100644
--- a/shaders/frag_irradiance.glsl
+++ b/shaders/frag_irradiance.glsl
@@ -17,11 +17,9 @@ uniform int renderState;
 uniform float powBase;

 uniform float powFactor;

 

-uniform float translucencySampleVariances[6];

-uniform vec3 translucencySampleWeights[6];

-

 void main()

 {

+  // phong lighting

   vec3 norm = normalize(Normal);

   vec3 lightDir = normalize(lightPos - FragPos);

 

@@ -37,30 +35,20 @@ void main()
   float spec = pow(max(dot(viewDir, reflectDir), 0.0), 32);

   vec3 specular = specularStrength * spec * lightColor;

 

-  //float distanceToBackside = length(clamp(FragPos - Backside, vec3(0), vec3(1000)));

-  float distanceToBackside = length(FragPos - Backside);

-  //distanceToBackside = distance(Backside, LocalPos);

   vec3 result = (ambient + diffuse + specular) * objectColor;

 

-  if (renderState == 3) {

+  // thickness

+  float distanceToBackside = length(FragPos - Backside);

+

+  if (renderState == 2) {

     if (distanceToBackside != 0) {

+      // add translucency by amplifying color inverse to the thickness

+      // (1 - diff) is part of the irradiance term,

+      // if the light hits the object straight at 90°

+      // most light is received

       result += objectColor * pow(powBase, powFactor / pow(distanceToBackside, 0.6)) * transmittanceScale * (1 - diff);

-      // vec3 translucency = vec3(0);

-      // for (int i = 0; i < 6; i++) {

-      //   translucency += objectColor * translucencySampleWeights[i] * exp(-pow(distanceToBackside, 2.0) / translucencySampleVariances[i]);

-      // }

-

-      // result += translucency * transmittanceScale;

     }

   }

-      //result += objectColor * pow(powBase, -pow(distanceToBackside, 2)) * transmittanceScale * (1 - diff);

-  // if (renderState == 3) {

-  //   //result = Backside;

-  //   //result = LocalPos;

-  //   result = vec3(distanceToBackside);

-  // }

-

     

   FragColor = vec4(result, 1.0f);

-  //FragColor = vec4(vec3(distanceToBackside), 1);

 }