Added lights

1 files changed, 17 insertions, 4 deletions

diff --git a/test.frag b/test.frag
index 13fe6bc..18b03df 100644
--- a/test.frag
+++ b/test.frag
@@ -1,4 +1,17 @@
-#version 120

-void main(){

-	gl_FragColor = glColor;

-}

+uniform vec2 lightLocation;

+uniform vec3 lightColor;

+uniform float screenHeight;

+

+float radius = 4.9;

+float minLight = .01;

+float a = .01;

+float b = 1.0 / (radius*radius * minLight);

+

+void main() {

+	float distance = length(lightLocation - gl_FragCoord.xy);

+	//float attenuation = 1.0 / (1.0 + a*distance + b*distance*distance);

+	float attenuation = clamp(1.0 - distance*distance/(radius*radius), 0.0, 1.0); attenuation *= attenuation;

+	vec4 color = vec4(attenuation, attenuation, attenuation, attenuation) * vec4(lightColor, 1);

+

+	gl_FragColor = color;

+}
\ No newline at end of file