Add the whole ass shader

it has begun

shaders/lib/waterBump.glsl

@@ -0,0 +1,60 @@
+
+//#define Vanilla_like_water // vanilla water texture along with shader water stuff
+
+
+float getWaterHeightmap(vec2 posxz, float waveM, float waveZ, float iswater) { // water waves
+	vec2 pos = posxz;
+	float moving = clamp(iswater*2.-1.0,0.0,1.0);
+	vec2 movement = vec2(-0.035*frameTimeCounter*moving);
+	float caustic = 0.0;
+	float weightSum = 0.0;
+	float radiance =  2.39996;
+	mat2 rotationMatrix  = mat2(vec2(cos(radiance),  -sin(radiance)),  vec2(sin(radiance),  cos(radiance)));
+
+	const vec2 wave_size[4] = vec2[](
+		vec2(600.),
+		vec2(32.,16.),
+		vec2(16.,32.),
+		vec2(48.)
+	);
+
+	for (int i = 0; i < 4; i++){
+		pos = rotationMatrix * pos;
+
+		vec2 speed = movement;
+		float waveStrength = 1.0;
+
+		if( i == 0) {
+			speed *= 0.15;
+			waveStrength = 7.0;
+		}
+
+		float small_wave = texture2D(noisetex, pos / wave_size[i] + speed ).b * waveStrength;
+
+		caustic += small_wave;
+		weightSum -= exp2(caustic);
+	}
+	return caustic / weightSum;
+}
+
+vec3 getWaveHeight(vec2 posxz, float iswater){
+
+		vec2 coord = posxz;
+
+		float deltaPos =  0.25;
+
+		float waveZ = mix(20.0,0.25,iswater);
+		float waveM = mix(0.0,4.0,iswater);
+
+		float h0 = getWaterHeightmap(coord, waveM, waveZ, iswater);
+		float h1 = getWaterHeightmap(coord + vec2(deltaPos,0.0), waveM, waveZ, iswater);
+		float h3 = getWaterHeightmap(coord + vec2(0.0,deltaPos), waveM, waveZ, iswater);
+
+
+		float xDelta = ((h1-h0))/deltaPos*2.;
+		float yDelta = ((h3-h0))/deltaPos*2.;
+
+		vec3 wave = normalize(vec3(xDelta,yDelta,1.0-pow(abs(xDelta+yDelta),2.0)));
+
+		return wave;
+}