add solar

galaxy2/src/shaders/fragmentShader.glsl

@@ -0,0 +1,19 @@
+varying vec3 vColor;
+
+void main(){
+
+    //Disc
+    // float strength = 1.0 - step(0.5, distance(gl_PointCoord, vec2(0.5)));
+
+    //Diffused point
+    // float strength = 1.0 - 2.0 * distance(gl_PointCoord, vec2(0.5));
+
+    //Light point
+    float strength = pow(1.0 - distance(gl_PointCoord, vec2(0.5)), 10.0);
+
+    //Color
+    vec3 color = mix(vec3(0.0), vColor, strength);
+
+    gl_FragColor = vec4(color, 1.0);
+
+}