2 files changed, 17 insertions, 18 deletions

diff --git a/shaders/world.frag b/shaders/world.frag
index 3177795..bde5fa5 100644
--- a/shaders/world.frag
+++ b/shaders/world.frag
@@ -3,7 +3,7 @@ uniform sampler2D normalTex;
 
 varying vec2 texCoord;
 varying vec4 color;
-varying vec3 fragCoord;
+varying vec4 fragCoord;
 
 uniform vec4 ambientLight;
 uniform vec4 light[128];
@@ -11,26 +11,25 @@ uniform vec4 lightColor[128];
 uniform float lightImpact;
 uniform int lightSize;
 
-float b = .0005f;
-float minLight = .05f;
-float radius = sqrt(1.0f / (b * minLight));
-
 void main()
 {
-	vec4 pixTex = texture2D(texture, vec2(texCoord.x, 1-texCoord.y));
+	vec2 texLoc = vec2(texCoord.x, 1-texCoord.y);
+	vec4 pixTex = texture2D(texture, texLoc);
     if (pixTex.a < 0.1f) 
 		discard;
- 
+  
 	vec4 shadeColor = vec4(0.0f, 0.0f, 0.0f, 0.0f);
-	for (int i = 0; i < lightSize; i++) {
-		vec2 loc = light[i].xy;
-		float dist = length(loc - fragCoord.xy);
-		float attenuation = clamp(1.0f - dist*dist/(radius*radius), 0.0f, 1.0f);
-		attenuation *= attenuation;
-		
-		shadeColor += vec4(attenuation, attenuation, attenuation, 1.0f) * vec4(lightColor[i]);		
+	if (lightImpact > 0.0f) {
+		for (int i = 0; i < lightSize; i++) {
+			vec2 loc = light[i].xy;
+			float dist = length(loc - fragCoord.xy);
+			float attenuation = clamp(1.0f - dist*dist/(light[i].w*light[i].w), 0.0f, 1.0f);
+			attenuation *= attenuation;
+
+			shadeColor += (vec4(attenuation, attenuation, attenuation, 0.0f) * vec4(lightColor[i])) * lightImpact;		
+		}
 	}
-	shadeColor += ambientLight;	
+	shadeColor += ambientLight;
 
 	gl_FragColor = pixTex * color * shadeColor;
 }
diff --git a/shaders/world.vert b/shaders/world.vert
index df814e6..0d5e65e 100644
--- a/shaders/world.vert
+++ b/shaders/world.vert
@@ -7,11 +7,11 @@ uniform mat4 transform;
 
 varying vec2 texCoord;
 varying vec4 color;
-varying vec3 fragCoord;
+varying vec4 fragCoord;
 
 void main(){
 	color = tex_color;
     texCoord = tex_coord;
-    gl_Position = ortho * transform * vec4(coord2d.xyz, 1.0);
-	fragCoord = vec3(gl_Position.xyz);
+    fragCoord = vec4(coord2d.xyz, 1.0);
+	gl_Position = ortho * transform * fragCoord;
 }