Thank you so much for the reply. Maybe I should’ve explained more about the shaders. I’m using a RawShaderMaterial that is attached to a THREE.BufferPlaneGeometry.
These are the vertex and fragment shader;
attribute vec3 position;
attribute vec2 uv;
uniform mat4 projectionMatrix;
uniform mat4 modelViewMatrix;
uniform mat3 normalMatrix;
uniform float time;
uniform vec2 mousePosition;
varying vec2 vUv;
varying float vElevation;
varying float vDisplacement;
float PI = 3.141592;
float mod289(float x){return x - floor(x * (1.0 / 289.0)) * 289.0;}
vec4 mod289(vec4 x){return x - floor(x * (1.0 / 289.0)) * 289.0;}
vec4 perm(vec4 x){return mod289(((x * 34.0) + 1.0) * x);}
float rand(vec2 co){
return fract(sin(dot(co.xy ,vec2(12.9898,78.233))) * 43758.5453);
}
float noise(vec3 p){
vec3 a = floor(p);
vec3 d = p - a;
d = d * d * (3.0 - 2.0 * d);
vec4 b = a.xxyy + vec4(0.0, 1.0, 0.0, 1.0);
vec4 k1 = perm(b.xyxy);
vec4 k2 = perm(k1.xyxy + b.zzww);
vec4 c = k2 + a.zzzz;
vec4 k3 = perm(c);
vec4 k4 = perm(c + 1.0);
vec4 o1 = fract(k3 * (1.0 / 41.0));
vec4 o2 = fract(k4 * (1.0 / 41.0));
vec4 o3 = o2 * d.z + o1 * (1.0 - d.z);
vec2 o4 = o3.yw * d.x + o3.xz * (1.0 - d.x);
return o4.y * d.y + o4.x * (1.0 - d.y);
}
float fbm(vec2 pos, float t){
float r;
r = noise( vec3( pos, t ) * 01.0 ) * 01.0000;
r += noise( vec3( pos, t ) * 02.0 ) * 00.5000;
r += noise( vec3( pos, t ) * 04.0 ) * 00.2500;
r += noise( vec3( pos, t ) * 08.0 ) * 00.1250;
r += noise( vec3( pos, t ) * 16.0 ) * 00.0625;
return r / 1.9375;
}
void main() {
vUv = uv;
float t = time *.3;
float t2 = time *.1;
vec2 pos = vUv * 2.0;
vec2 displacement = vec2(t, t2) + (1.0 + mousePosition * .5);
float p = fbm( displacement * 2.0 + pos * 2.0, t * 1.1);
vec2 pos2 = pos + vec2(p);
float q = fbm( displacement * 3.0 + pos2 * 2.0, t * 1.23);
vec2 pos3 = pos + vec2(q);
float r = fbm( displacement * 4.0 + pos3 * 2.0, t * 1.23);
vec2 pos4 = pos + vec2(r);
float s = fbm( displacement * 5.0 + pos4 * 2.0, t * 1.32);
float d = length( vUv - (0.5 + mousePosition));
float ratioElevation = pow( (1.0 - d), 5.0);
vElevation = s + .2 + ratioElevation * .2;
vElevation *= 1.0 - smoothstep(0.0, 1.0, length(uv - .5));
gl_Position = projectionMatrix * modelViewMatrix * vec4 ( position, 1.0);
}
precision highp float;
varying vec2 vUv;
varying float vElevation;
uniform float uHue;
uniform float a;
float hue2rgb(float f1, float f2, float hue) {
if (hue < 0.0)
hue += 1.0;
else if (hue > 1.0)
hue -= 1.0;
float res;
if ((6.0 * hue) < 1.0)
res = f1 + (f2 - f1) * 6.0 * hue;
else if ((2.0 * hue) < 1.0)
res = f2;
else if ((3.0 * hue) < 2.0)
res = f1 + (f2 - f1) * ((2.0 / 3.0) - hue) * 6.0;
else
res = f1;
return res;
}
vec3 hsl2rgb(vec3 hsl) {
vec3 rgb;
if (hsl.y == 0.0) {
rgb = vec3(hsl.z); // Luminance
} else {
float f2;
if (hsl.z < 0.5)
f2 = hsl.z * (1.0 + hsl.y);
else
f2 = hsl.z + hsl.y - hsl.y * hsl.z;
float f1 = 2.0 * hsl.z - f2;
rgb.r = hue2rgb(f1, f2, hsl.x + (1.0/3.0));
rgb.g = hue2rgb(f1, f2, hsl.x);
rgb.b = hue2rgb(f1, f2, hsl.x - (1.0/3.0));
}
return rgb;
}
vec3 hsl2rgb(float h, float s, float l) {
return hsl2rgb(vec3(h, s, l));
}
void main () {
float hue = uHue + vElevation * .05;
hue += smoothstep(.6, 1.0, vElevation) * .2;
float highlight = sin ( smoothstep(.6, .91, vElevation) * 3.14 );
hue += highlight * .1;
float saturation = vElevation * 1.1;
float darkborders = sin(vUv.x * 3.14) * sin(vUv.y * 3.14);
float brightness = pow( darkborders * a + vElevation, 3.5);
brightness *= .5 + smoothstep(.6, 1.0, vElevation) * .5;
brightness += highlight * .2;
vec3 col = hsl2rgb(hue, saturation, brightness);
if(brightness < 0.1){
vec3 col = hsl2rgb(hue, saturation, 1.0-brightness);
gl_FragColor = vec4(col, 0.0);
}else if(brightness < 0.13 ){
vec3 col = hsl2rgb(hue, saturation, .05);
gl_FragColor = vec4(col, 0.5);
}
else{
vec3 col = hsl2rgb(hue-.01, saturation, brightness);
gl_FragColor = vec4(col, 1.0);
}
}
so for what’s in the planes to look better, it needs a lot of triangles. When I lower that amount of width and height segments and I test it on mobile the performance gets better. The place where I use more textures is on the background of the scene, I already lowered the files sizes, and it just needs to transfer 40 MB (This changes are not yet in the public version).
