Reverting to old way when to sample the directional shadow, because of a bug introduced by this.

data/shader/phong.fsh

@@ -51,7 +51,6 @@ uniform bool movingTexture;
 uniform vec2 movement;
 uniform vec2 movingTextureOffset;
 uniform float time;
-uniform bool sampleDirectionalShadowSwitch;
 
 vec2 poissonDisk[16] = vec2[](
    vec2( -0.94201624, -0.39906216 ),
@@ -209,9 +208,9 @@ void main()
 
     // direction lighting
     float sunAngle = -1.0;
-    if(sampleDirectionalShadowSwitch) {
     vec3 directionalVector = normalize(directionalLightVector);
     sunAngle = dot(vec3(0.0, 1.0, 0.0), directionalVector);
+    if(sunAngle > 0.0) {
         float directionalVisibility = 1.0f;
         float directionalIntensity = sunIntensity(sunAngle);
         if (distanceToBorder(shadowCoord3.xy) <= 0.5 && distanceToBorder(shadowCoord3.xy) > 0.2) {

game/graphics.cc

@@ -30,7 +30,6 @@ Graphics::Graphics(glm::uvec2 windowSize, float nearPlane,
     renderFlames = true;
     renderWorld = true;
     renderDebug = false;
-    directionalShadowSwitch = false;
 }
 
 Graphics::Graphics() {
@@ -197,7 +196,6 @@ void Graphics::init(Level* level) {
     lightingShader->setUniform("fogColorRise", level->getFogColourRise());
     lightingShader->setUniform("fogColorNight", level->getFogColourNight());
     lightingShader->setUniform("ambientColor", level->getAmbientLight());
-    lightingShader->setUniform("sampleDirectionalShadowSwitch", false);
     if(level->getDirectionalLight()) {
         lightingShader->setUniform("directionalLightVector",
             level->getDirectionalLight()->getPosition());
@@ -370,11 +368,6 @@ void Graphics::render(double time)
             glm::vec3 sunVector = (level->getCameraCenter()->getPosition() + level->getDirectionalLight()->getPosition());
 
             if (sunAngle > 0.0f) {
-                if (!directionalShadowSwitch) {
-                    lightingShader->use();
-                    lightingShader->setUniform("sampleDirectionalShadowSwitch", true);
-                    directionalShadowSwitch = true;
-                }
                 depthShader->use();
                 for (unsigned int i = 0; i<framebuffer_directional.size(); i++) {
                     framebuffer_directional.at(i)->bind();
@@ -405,11 +398,6 @@ void Graphics::render(double time)
                         }
                 }
             }
-            else if (directionalShadowSwitch) {
-                lightingShader->use();
-                lightingShader->setUniform("sampleDirectionalShadowSwitch", false);
-                directionalShadowSwitch = false;
-            }
         }
         
         // lighting render pass

game/graphics.hh

@@ -84,7 +84,6 @@ class Graphics {
         bool renderFlames;
         bool renderDebug;
         bool renderWorld;
-        bool directionalShadowSwitch;
         DebugDraw debugDrawer;
         SharedArrayBuffer debug_ab;
         SharedVertexArrayObject debug_vao;