Added support for multiple lights

1 files changed, 13 insertions, 10 deletions

diff --git a/test.frag b/test.frag
index b16ae1a..3b11ebb 100644
--- a/test.frag
+++ b/test.frag
@@ -1,20 +1,23 @@
 uniform sampler2D sampler;

 

-uniform vec2 lightLocation;

+uniform int numLight;

+uniform vec2 lightLocation[10];

 uniform vec3 lightColor;

 uniform float amb;

 // uniform float lightStrength;

 //uniform float screenHeight;

-void main() {

-	float lightAdd = 1.0f;

-

-	float dist = length(lightLocation - gl_FragCoord.xy);

-	float attenuation=1.0/(1.0+0.01*dist+0.00000000001*dist*dist);

-

-	//vec4 color = vec4(1.0f,1.0f,1.0f,1.0f);

-	vec4 color = vec4(attenuation, attenuation, attenuation, 1.0f) * vec4(lightColor, 1.0f);

-	//color = color + vec4((vec3(lightColor.r + amb, lightColor.g + amb, lightColor.b + amb)*0.25f),1.0f);

+void main(){

+	vec4 color = vec4(0.0f,0.0f,0.0f,0.0f);

+	for(int i = 0; i < numLight; i++){

+		vec2 loc = lightLocation[i];

+		//if(loc.x == 0.0f) continue;

+		float dist = length(loc - gl_FragCoord.xy);

+		float attenuation=1.0/(1.0+0.01*dist+0.00000000001*dist*dist);

 

+		//vec4 color = vec4(1.0f,1.0f,1.0f,1.0f);

+		color += vec4(attenuation, attenuation, attenuation, 1.0f) * vec4(lightColor, 1.0f);

+		//color = color + vec4((vec3(lightColor.r + amb, lightColor.g + amb, lightColor.b + amb)*0.25f),1.0f);

+	}

 	vec2 coords = gl_TexCoord[0].st;

 	vec4 tex = texture2D(sampler, coords);