work

1 files changed, 50 insertions, 0 deletions

diff --git a/src/shaders/land.frag b/src/shaders/land.frag
new file mode 100644
index 0000000..3c23990
--- /dev/null
+++ b/src/shaders/land.frag
@@ -0,0 +1,50 @@
+precision mediump float;
+uniform vec4 black;
+uniform vec4 outline;
+uniform vec4 highlight;
+uniform vec4 foreground;
+uniform vec4 midground;
+uniform vec4 shadow;
+uniform vec4 background;
+uniform vec4 lamp1; //vec3 position, float strength
+uniform vec4 lamp2;
+uniform vec4 lamp3; // max 3 lamps per shaded vertex
+varying vec2 worldxy;
+varying mat4 pre;
+
+// Author @patriciogv - 2015
+float random (vec2 st) {
+	return fract(
+			sin(
+				dot(st.xy,vec2(12.9898,78.233))
+			) *
+			43758.5453123
+	);
+}
+
+void main() {
+	vec4 coord = gl_FragCoord + vec4(worldxy * 256., 0, 0);
+	/*
+	coord.x -= worldxy.x;
+	coord.y -= worldxy.y;
+	*/
+	//coord = coord / 1000.;
+	float color = 0.;
+	vec2 lamppos = (lamp1.xy * 256.) - (worldxy * 1.);
+	color += (lamp1.w * 256.) - distance((lamp1.xy * 256.) - worldxy, coord.xy);
+	/*
+	if(color > 1.)
+		gl_FragColor = highlight;
+	else if(color > 0.8)
+		gl_FragColor = foreground;
+	else if(color > 0.6)
+		gl_FragColor = midground;
+	else if(color > 0.4)
+		gl_FragColor = background;
+	else if(color > 0.2)
+		gl_FragColor = shadow;
+	else
+		gl_FragColor = black;
+	*/
+	gl_FragColor = vec4(color / (256. * lamp1.w), color / (256. * lamp1.w), color / (256. * lamp1.w),1.);
+}