Added "glow" to lights and fixed soft shadows so that the lowest posi…

…tion is the same as hard shadows.
mtwoodard · Jan 21, 2019 · e5bf3dc · e5bf3dc
1 parent 279eeeb
commit e5bf3dc
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Showing 5 changed files with 16 additions and 5 deletions.
diff --git a/js/HyperSpace.js b/js/HyperSpace.js
@@ -270,7 +270,6 @@ var loadShaders = function(){ //Since our shader is made up of strings we can co
 }
 
 var finishInit = function(fShader){
-//  console.log(fShader);
   g_material = new THREE.ShaderMaterial({
     uniforms:{
       isStereo:{type: "i", value: 0},
@@ -288,12 +287,11 @@ var finishInit = function(fShader){
       lightIntensities:{type:"v3v", value:lightIntensities},
       attnModel:{type:"i", value:attnModel},
       renderShadows:{type:"bv", value:[false, false]},
-      shadSoft:{type:"f", value:128.0},
+      shadSoft:{type:"f", value:10000.0},
       texture:{type:"t", value: new THREE.TextureLoader().load("images/concrete2.png")},
       // texture:{type:"t", value: new THREE.TextureLoader().load("images/white.png")},   
       controllerCount:{type:"i", value: 0},
       controllerBoosts:{type:"m4", value:g_controllerBoosts},
-      //controllerDualPoints:{type:"v4v", value:g_controllerDualPoints},
       globalObjectBoosts:{type:"m4v", value:globalObjectBoosts},
       invGlobalObjectBoosts:{type:"m4v", value:invGlobalObjectBoosts},
       globalObjectRadii:{type:"v3v", value:globalObjectRadii},

diff --git a/js/UI.js b/js/UI.js
@@ -294,7 +294,7 @@ var initGui = function(){
 
   softnessController.onChange(function(value){
     if(value === 0.0){
-      g_material.uniforms.shadSoft.value = 128.0;
+      g_material.uniforms.shadSoft.value = 10000.0;
     }
     else{
       g_material.uniforms.shadSoft.value = 1.0/value;

diff --git a/shaders/fragment.glsl b/shaders/fragment.glsl
@@ -1,6 +1,7 @@
 //GLOBAL OBJECTS SCENE ++++++++++++++++++++++++++++++++++++++++++++++++
 float globalSceneSDF(vec4 samplePoint, mat4 globalTransMatrix, bool collideWithLights){
   float distance = maxDist;
+  float glowStrength = 4.0;
   if(collideWithLights){
     //Light Objects
     for(int i=0; i<NUM_LIGHTS; i++){
@@ -14,6 +15,9 @@ float globalSceneSDF(vec4 samplePoint, mat4 globalTransMatrix, bool collideWithL
           globalLightColor = lightIntensities[i];
           return distance;
         }
+        else{
+          glow[i] = max(glow[i], 1.0-(glowStrength*distance));
+        }
       }
     }
     //Controller Objects
@@ -212,13 +216,20 @@ void main(){
   rayDirV *= currentBoost;
   //generate direction then transform to hyperboloid ------------------------
   vec4 rayDirVPrime = geometryDirection(rayOrigin, rayDirV);
+
+  for(int i = 0; i<NUM_LIGHTS+1; i++){
+    glow[i] = 0.0;
+  }
+
   //get our raymarched distance back ------------------------
   mat4 totalFixMatrix = mat4(1.0);
   raymarch(rayOrigin, rayDirVPrime, totalFixMatrix);
 
   //Based on hitWhich decide whether we hit a global object, local object, or nothing
   if(hitWhich == 0){ //Didn't hit anything ------------------------
-    gl_FragColor = vec4(0.0);
+    for(int i = 0; i<NUM_LIGHTS; i++){
+      gl_FragColor = vec4(0.2 * glow[i] * lightIntensities[i].xyz, 1.0);
+    }
     return;
   }
   else if(hitWhich == 1){ // global lights

diff --git a/shaders/globalsInclude.glsl b/shaders/globalsInclude.glsl
@@ -13,6 +13,7 @@ vec4 sampleTangentVector = vec4(1, 1, 1, 1);
 vec4 N = ORIGIN; //normal vector
 vec4 globalLightColor = ORIGIN;
 int hitWhich = 0;
+float glow[NUM_LIGHTS+1];
 //-------------------------------------------
 //Translation & Utility Variables
 //--------------------------------------------

diff --git a/shaders/lighting.glsl b/shaders/lighting.glsl
@@ -135,6 +135,7 @@ vec3 phongModel(mat4 invObjectBoost, bool isGlobal, mat4 globalTransMatrix){
     if(lightIntensities[i].w != 0.0){
       TLP = lightPositions[i]*globalTransMatrix;
       color += lightingCalculations(SP, TLP, V, baseColor, lightIntensities[i], globalTransMatrix);
+      color += 0.2 * glow[i] * lightIntensities[i].xyz;
     }
   }