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Low poly #1

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Low poly #1

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c20134c
add basic low poly leaves
CalebBabin Oct 25, 2021
a734bb9
use new ThreeJS emote library
CalebBabin Nov 6, 2021
b7266fc
add shadows, split material/shader code into seperate files
CalebBabin Nov 7, 2021
107e1dd
adjust lighting
CalebBabin Nov 13, 2021
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2 changes: 1 addition & 1 deletion package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,7 @@
"stats-js": "^1.0.1",
"style-loader": "^3.3.1",
"three": "^0.125.2",
"twitch-chat-emotes": "^0.1.34",
"twitch-chat-emotes-threejs": "^0.2.0",
"webpack": "^5.44.0",
"webpack-cli": "^4.7.2"
},
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188 changes: 183 additions & 5 deletions src/index.html
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@@ -1,12 +1,190 @@
<!DOCTYPE html>
<html lang="en">

<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Intro Example - ThreeJS</title>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Intro Example - ThreeJS</title>
<script id="fragmentShader" type="x-shader/x-fragment">
#ifdef GL_ES
precision lowp float;
#endif

uniform float u_time;
varying vec2 vUv;

vec3 mod289(vec3 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 permute(vec4 x) {
return mod289(((x * 34.0) + 10.0) * x);
}
vec4 taylorInvSqrt(vec4 r) {
return 1.79284291400159 - 0.85373472095314 * r;
}
float snoise(vec3 v) {
const vec2 C = vec2(1.0 / 6.0, 1.0 / 3.0);
const vec4 D = vec4(0.0, 0.5, 1.0, 2.0);

vec3 i = floor(v + dot(v, C.yyy));
vec3 x0 = v - i + dot(i, C.xxx);

vec3 g = step(x0.yzx, x0.xyz);
vec3 l = 1.0 - g;
vec3 i1 = min(g.xyz, l.zxy);
vec3 i2 = max(g.xyz, l.zxy);

vec3 x1 = x0 - i1 + C.xxx;
vec3 x2 = x0 - i2 + C.yyy;
vec3 x3 = x0 - D.yyy;

i = mod289(i);
vec4 p = permute(permute(permute( i.z + vec4(0.0, i1.z, i2.z, 1.0)) + i.y + vec4(0.0, i1.y, i2.y, 1.0)) + i.x + vec4(0.0, i1.x, i2.x, 1.0));

float n_ = 0.142857142857;
vec3 ns = n_ * D.wyz - D.xzx;
vec4 j = p - 49.0 * floor(p * ns.z * ns.z);
vec4 x_ = floor(j * ns.z);
vec4 y_ = floor(j - 7.0 * x_);
vec4 x = x_ * ns.x + ns.yyyy;
vec4 y = y_ * ns.x + ns.yyyy;
vec4 h = 1.0 - abs(x) - abs(y);
vec4 b0 = vec4(x.xy, y.xy);
vec4 b1 = vec4(x.zw, y.zw);

vec4 s0 = floor(b0) * 2.0 + 1.0;
vec4 s1 = floor(b1) * 2.0 + 1.0;
vec4 sh = -step(h, vec4(0.0));
vec4 a0 = b0.xzyw + s0.xzyw * sh.xxyy;
vec4 a1 = b1.xzyw + s1.xzyw * sh.zzww;
vec3 p0 = vec3(a0.xy, h.x);
vec3 p1 = vec3(a0.zw, h.y);
vec3 p2 = vec3(a1.xy, h.z);
vec3 p3 = vec3(a1.zw, h.w);

vec4 norm = taylorInvSqrt(vec4(dot(p0, p0), dot(p1, p1), dot(p2, p2), dot(p3, p3)));
p0 *= norm.x;
p1 *= norm.y;
p2 *= norm.z;
p3 *= norm.w;

vec4 m = max(0.5 - vec4(dot(x0, x0), dot(x1, x1), dot(x2, x2), dot(x3, x3)), 0.0);
m = m * m;
return 105.0 * dot(m * m, vec4(dot(p0, x0), dot(p1, x1), dot(p2, x2), dot(p3, x3)));
}

vec3 dim = vec3(0.0, 0.09, 0.149);

// original vec3(1.0, 0.93, 0.43);
vec3 highlight = vec3(0.045 * 1.4, 0.09 * 1.4, 0.149 * 1.4);

void main() {

vec2 st = vUv;
st.x *= 1.0;

vec3 color = vec3(0.0);

// Scale the space in order to see the function
st *= 10.;

float alpha = .5 - snoise(vec3(st.x, st.y - u_time * 0.1, u_time * 0.01));
float mixVariable = alpha;
gl_FragColor = vec4(
mix(dim.x, highlight.x, mixVariable),
mix(dim.y, highlight.y, mixVariable),
mix(dim.z, highlight.z, mixVariable),
min(1.0, alpha) * 0.7
);
}
</script>

<script id="vertexShader" type="x-shader/x-vertex">
#ifdef GL_ES
precision lowp float;
#endif
uniform float u_time;
varying vec2 vUv;


vec3 mod289(vec3 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 permute(vec4 x) {
return mod289(((x * 34.0) + 10.0) * x);
}
vec4 taylorInvSqrt(vec4 r) {
return 1.79284291400159 - 0.85373472095314 * r;
}
float snoise(vec3 v) {
const vec2 C = vec2(1.0 / 6.0, 1.0 / 3.0);
const vec4 D = vec4(0.0, 0.5, 1.0, 2.0);

vec3 i = floor(v + dot(v, C.yyy));
vec3 x0 = v - i + dot(i, C.xxx);

vec3 g = step(x0.yzx, x0.xyz);
vec3 l = 1.0 - g;
vec3 i1 = min(g.xyz, l.zxy);
vec3 i2 = max(g.xyz, l.zxy);

vec3 x1 = x0 - i1 + C.xxx;
vec3 x2 = x0 - i2 + C.yyy;
vec3 x3 = x0 - D.yyy;

i = mod289(i);
vec4 p = permute(permute(permute( i.z + vec4(0.0, i1.z, i2.z, 1.0)) + i.y + vec4(0.0, i1.y, i2.y, 1.0)) + i.x + vec4(0.0, i1.x, i2.x, 1.0));

float n_ = 0.142857142857;
vec3 ns = n_ * D.wyz - D.xzx;
vec4 j = p - 49.0 * floor(p * ns.z * ns.z);
vec4 x_ = floor(j * ns.z);
vec4 y_ = floor(j - 7.0 * x_);
vec4 x = x_ * ns.x + ns.yyyy;
vec4 y = y_ * ns.x + ns.yyyy;
vec4 h = 1.0 - abs(x) - abs(y);
vec4 b0 = vec4(x.xy, y.xy);
vec4 b1 = vec4(x.zw, y.zw);

vec4 s0 = floor(b0) * 2.0 + 1.0;
vec4 s1 = floor(b1) * 2.0 + 1.0;
vec4 sh = -step(h, vec4(0.0));
vec4 a0 = b0.xzyw + s0.xzyw * sh.xxyy;
vec4 a1 = b1.xzyw + s1.xzyw * sh.zzww;
vec3 p0 = vec3(a0.xy, h.x);
vec3 p1 = vec3(a0.zw, h.y);
vec3 p2 = vec3(a1.xy, h.z);
vec3 p3 = vec3(a1.zw, h.w);

vec4 norm = taylorInvSqrt(vec4(dot(p0, p0), dot(p1, p1), dot(p2, p2), dot(p3, p3)));
p0 *= norm.x;
p1 *= norm.y;
p2 *= norm.z;
p3 *= norm.w;

vec4 m = max(0.5 - vec4(dot(x0, x0), dot(x1, x1), dot(x2, x2), dot(x3, x3)), 0.0);
m = m * m;
return 105.0 * dot(m * m, vec4(dot(p0, x0), dot(p1, x1), dot(p2, x2), dot(p3, x3)));
}

void main()
{
vUv = uv;
vec4 mvPosition = modelViewMatrix * vec4( position, 1.0 );
gl_Position = projectionMatrix * mvPosition + (snoise(vec3(position.x, position.y, position.z + u_time * 0.1)) * 0.3);
}
</script>
</head>

<body>

</body>

</html>
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