Jupiter and Io
https://www.shadertoy.com/view/XXjSRc
it worked, but not very good.
Shader code
shader_type canvas_item;
#define iResolution 1.0 / SCREEN_PIXEL_SIZE
#define iTime TIME
uniform sampler2D sphere1_texture : repeat_enable, filter_linear_mipmap;
uniform sampler2D sphere2_texture : repeat_enable, filter_linear_mipmap;
uniform sampler2D stars_texture : repeat_enable, filter_linear_mipmap;
uniform sampler2D nebula_texture : repeat_enable, filter_linear_mipmap;
#define BackgroundColor vec3(0.0941, 0.1019, 0.0901)
uniform vec3 light_direction = vec3(1.0, 1.0, 0.8);
uniform vec2 sphere1_disp = vec2(0.2, 0.15);
uniform float sphere1_size = 0.6;
uniform vec3 atmosphere1_color = vec3(1.0, 0.7, 0.4);
uniform float atmosphere1_factor = 3.;
uniform float halo1_width = 0.2;
uniform float min_atmosphere1 = 0.05;
uniform float max_atmosphere1 = 0.6;
uniform float fall_off1 = 2.0;
uniform vec2 rotation_matrix1 = vec2(-0.2, 0.3);
uniform float rotation_speed1 = 0.02;
uniform float texture1_uv_scale = 1.;
uniform vec2 texture1_disp = vec2(0.0, 0.8);
uniform vec4 texture1_color = vec4(3.5, 6.0, 8.0, 3.5);
uniform vec2 sphere2_disp = vec2(-0.32, -0.2);
uniform float sphere2_size = 0.07;
uniform vec3 atmosphere2_color = vec3(1.0, 0.9, 0.8);
uniform float atmosphere2_factor = 1.5;
uniform float halo2_width = 0.06;
uniform float min_atmosphere2 = 0.03;
uniform float max_atmosphere2 = 1.;
uniform float fall_off2 = 4.0;
uniform vec2 rotation_matrix2 = vec2(0.4, -0.1);
uniform float rotation_speed2 = 0.05;
uniform float texture2_uv_scale = 1.;
uniform vec2 texture2_disp = vec2(0.0, 0.8);
uniform vec4 texture2_color = vec4(3.5, 6.0, 8.0, 3.5);
uniform float stars_bias = 25.;
uniform vec3 stars_color = vec3(1.0, 0.4, 0.3);
uniform float stars_factor = 3.;
uniform float quake_lava_amplitude = 0.04;
uniform float quake_lava_speed = 0.06;
uniform float quake_lava_frequency = 13.0;
uniform float nabula_fade1 = 2.5;
uniform float nabula_fade2 = 0.5;
uniform vec3 nebula_tint = vec3(0.9, 0.3, 0.4);
#define TILING 1.0
int WrapIndexX(int index){
return (index % 16 + 16) % 16;}
int WrapIndexY(int index){
return (index % 16 + 16) % 16;}
vec3 sampleJupiterASmoothstepFilter(vec2 uv)
{
vec2 imageSize = vec2(16, 16);
const vec3 image[256] = vec3[](
vec3(0.906,0.780, 0.678),vec3(0.906,0.780, 0.678),vec3(0.906,0.780, 0.678),vec3(0.906,0.780, 0.678),vec3(0.808,0.714, 0.647),vec3(0.808,0.714, 0.647),vec3(0.655,0.510, 0.451),vec3(0.655,0.510, 0.451),vec3(0.796,0.643, 0.557),vec3(0.796,0.643, 0.557),vec3(1.000,0.906, 0.808),vec3(1.000,0.906, 0.808),vec3(1.000,0.937, 0.839),vec3(1.000,0.937, 0.839),vec3(0.804,0.671, 0.580),vec3(0.804,0.671, 0.580),
vec3(0.733,0.573, 0.471),vec3(0.388,0.157, 0.063),vec3(0.561,0.365, 0.267),vec3(0.561,0.365, 0.267),vec3(0.655,0.510, 0.451),vec3(0.655,0.510, 0.451),vec3(0.655,0.510, 0.451),vec3(0.502,0.310, 0.255),vec3(0.388,0.125, 0.063),vec3(0.592,0.384, 0.310),vec3(0.796,0.643, 0.557),vec3(0.592,0.384, 0.310),vec3(0.804,0.671, 0.580),vec3(0.612,0.404, 0.322),vec3(0.804,0.671, 0.580),vec3(0.804,0.671, 0.580),
vec3(0.733,0.573, 0.471),vec3(0.561,0.365, 0.267),vec3(0.561,0.365, 0.267),vec3(0.388,0.157, 0.063),vec3(0.353,0.110, 0.063),vec3(0.353,0.110, 0.063),vec3(0.502,0.310, 0.255),vec3(0.808,0.714, 0.647),vec3(0.592,0.384, 0.310),vec3(0.388,0.125, 0.063),vec3(0.592,0.384, 0.310),vec3(0.592,0.384, 0.310),vec3(0.612,0.404, 0.322),vec3(0.420,0.141, 0.063),vec3(0.420,0.141, 0.063),vec3(0.420,0.141, 0.063),
vec3(0.733,0.573, 0.471),vec3(0.733,0.573, 0.471),vec3(0.733,0.573, 0.471),vec3(0.561,0.365, 0.267),vec3(0.353,0.110, 0.063),vec3(0.655,0.510, 0.451),vec3(0.655,0.510, 0.451),vec3(0.655,0.510, 0.451),vec3(0.796,0.643, 0.557),vec3(0.796,0.643, 0.557),vec3(0.592,0.384, 0.310),vec3(0.796,0.643, 0.557),vec3(0.612,0.404, 0.322),vec3(0.612,0.404, 0.322),vec3(0.612,0.404, 0.322),vec3(0.612,0.404, 0.322),
vec3(0.710,0.510, 0.420),vec3(0.710,0.510, 0.420),vec3(0.588,0.416, 0.353),vec3(0.588,0.416, 0.353),vec3(0.592,0.451, 0.420),vec3(0.537,0.376, 0.322),vec3(0.537,0.376, 0.322),vec3(0.537,0.376, 0.322),vec3(0.549,0.384, 0.322),vec3(0.549,0.384, 0.322),vec3(0.678,0.502, 0.420),vec3(0.678,0.502, 0.420),vec3(0.667,0.490, 0.431),vec3(0.808,0.604, 0.518),vec3(0.667,0.490, 0.431),vec3(0.667,0.490, 0.431),
vec3(0.588,0.416, 0.353),vec3(0.471,0.325, 0.286),vec3(0.588,0.416, 0.353),vec3(0.588,0.416, 0.353),vec3(0.592,0.451, 0.420),vec3(0.482,0.302, 0.224),vec3(0.592,0.451, 0.420),vec3(0.482,0.302, 0.224),vec3(0.678,0.502, 0.420),vec3(0.549,0.384, 0.322),vec3(0.678,0.502, 0.420),vec3(0.808,0.620, 0.518),vec3(0.525,0.380, 0.345),vec3(0.525,0.380, 0.345),vec3(0.808,0.604, 0.518),vec3(0.525,0.380, 0.345),
vec3(0.471,0.325, 0.286),vec3(0.471,0.325, 0.286),vec3(0.710,0.510, 0.420),vec3(0.588,0.416, 0.353),vec3(0.537,0.376, 0.322),vec3(0.592,0.451, 0.420),vec3(0.592,0.451, 0.420),vec3(0.592,0.451, 0.420),vec3(0.678,0.502, 0.420),vec3(0.420,0.271, 0.224),vec3(0.678,0.502, 0.420),vec3(0.420,0.271, 0.224),vec3(0.667,0.490, 0.431),vec3(0.667,0.490, 0.431),vec3(0.667,0.490, 0.431),vec3(0.667,0.490, 0.431),
vec3(0.588,0.416, 0.353),vec3(0.710,0.510, 0.420),vec3(0.471,0.325, 0.286),vec3(0.353,0.235, 0.224),vec3(0.592,0.451, 0.420),vec3(0.647,0.525, 0.518),vec3(0.647,0.525, 0.518),vec3(0.592,0.451, 0.420),vec3(0.678,0.502, 0.420),vec3(0.420,0.271, 0.224),vec3(0.420,0.271, 0.224),vec3(0.549,0.384, 0.322),vec3(0.388,0.271, 0.259),vec3(0.667,0.490, 0.431),vec3(0.525,0.380, 0.345),vec3(0.388,0.271, 0.259),
vec3(0.525,0.388, 0.341),vec3(0.525,0.388, 0.341),vec3(0.353,0.204, 0.161),vec3(0.525,0.388, 0.341),vec3(0.569,0.443, 0.408),vec3(0.451,0.302, 0.259),vec3(0.451,0.302, 0.259),vec3(0.686,0.584, 0.557),vec3(0.518,0.380, 0.353),vec3(0.667,0.545, 0.502),vec3(0.518,0.380, 0.353),vec3(0.667,0.545, 0.502),vec3(0.655,0.506, 0.427),vec3(0.655,0.506, 0.427),vec3(0.518,0.333, 0.224),vec3(0.655,0.506, 0.427),
vec3(0.698,0.576, 0.525),vec3(0.698,0.576, 0.525),vec3(0.698,0.576, 0.525),vec3(0.525,0.388, 0.341),vec3(0.686,0.584, 0.557),vec3(0.808,0.729, 0.710),vec3(0.686,0.584, 0.557),vec3(0.569,0.443, 0.408),vec3(0.667,0.545, 0.502),vec3(0.816,0.710, 0.655),vec3(0.816,0.710, 0.655),vec3(0.816,0.710, 0.655),vec3(0.796,0.682, 0.631),vec3(0.796,0.682, 0.631),vec3(0.796,0.682, 0.631),vec3(0.655,0.506, 0.427),
vec3(0.698,0.576, 0.525),vec3(0.871,0.765, 0.710),vec3(0.871,0.765, 0.710),vec3(0.698,0.576, 0.525),vec3(0.686,0.584, 0.557),vec3(0.686,0.584, 0.557),vec3(0.808,0.729, 0.710),vec3(0.808,0.729, 0.710),vec3(0.816,0.710, 0.655),vec3(0.816,0.710, 0.655),vec3(0.969,0.875, 0.808),vec3(0.816,0.710, 0.655),vec3(0.796,0.682, 0.631),vec3(0.937,0.859, 0.839),vec3(0.937,0.859, 0.839),vec3(0.937,0.859, 0.839),
vec3(0.871,0.765, 0.710),vec3(0.871,0.765, 0.710),vec3(0.871,0.765, 0.710),vec3(0.871,0.765, 0.710),vec3(0.686,0.584, 0.557),vec3(0.808,0.729, 0.710),vec3(0.808,0.729, 0.710),vec3(0.686,0.584, 0.557),vec3(0.667,0.545, 0.502),vec3(0.816,0.710, 0.655),vec3(0.969,0.875, 0.808),vec3(0.816,0.710, 0.655),vec3(0.796,0.682, 0.631),vec3(0.796,0.682, 0.631),vec3(0.518,0.333, 0.224),vec3(0.796,0.682, 0.631),
vec3(0.827,0.686, 0.624),vec3(0.655,0.471, 0.376),vec3(0.655,0.471, 0.376),vec3(0.655,0.471, 0.376),vec3(0.580,0.424, 0.353),vec3(0.580,0.424, 0.353),vec3(0.482,0.286, 0.192),vec3(0.776,0.698, 0.678),vec3(0.667,0.514, 0.439),vec3(0.667,0.514, 0.439),vec3(0.816,0.694, 0.624),vec3(0.518,0.333, 0.259),vec3(0.451,0.235, 0.192),vec3(0.451,0.235, 0.192),vec3(0.631,0.459, 0.396),vec3(0.631,0.459, 0.396),
vec3(0.827,0.686, 0.624),vec3(0.655,0.471, 0.376),vec3(0.655,0.471, 0.376),vec3(0.655,0.471, 0.376),vec3(0.580,0.424, 0.353),vec3(0.580,0.424, 0.353),vec3(0.580,0.424, 0.353),vec3(0.580,0.424, 0.353),vec3(0.518,0.333, 0.259),vec3(0.816,0.694, 0.624),vec3(0.816,0.694, 0.624),vec3(0.816,0.694, 0.624),vec3(0.451,0.235, 0.192),vec3(0.631,0.459, 0.396),vec3(0.816,0.682, 0.600),vec3(0.816,0.682, 0.600),
vec3(0.655,0.471, 0.376),vec3(0.482,0.255, 0.129),vec3(0.827,0.686, 0.624),vec3(0.655,0.471, 0.376),vec3(0.482,0.286, 0.192),vec3(0.580,0.424, 0.353),vec3(0.678,0.561, 0.514),vec3(0.580,0.424, 0.353),vec3(0.667,0.514, 0.439),vec3(0.816,0.694, 0.624),vec3(0.667,0.514, 0.439),vec3(0.667,0.514, 0.439),vec3(0.816,0.682, 0.600),vec3(0.816,0.682, 0.600),vec3(0.631,0.459, 0.396),vec3(0.451,0.235, 0.192),
vec3(0.827,0.686, 0.624),vec3(1.000,0.906, 0.871),vec3(1.000,0.906, 0.871),vec3(0.827,0.686, 0.624),vec3(0.776,0.698, 0.678),vec3(0.776,0.698, 0.678),vec3(0.776,0.698, 0.678),vec3(0.776,0.698, 0.678),vec3(0.816,0.694, 0.624),vec3(0.969,0.875, 0.808),vec3(0.969,0.875, 0.808),vec3(0.969,0.875, 0.808),vec3(1.000,0.906, 0.808),vec3(1.000,0.906, 0.808),vec3(0.816,0.682, 0.600),vec3(1.000,0.906, 0.808));
int xIndex = int(floor(uv.x * imageSize.x - 0.5));
int yIndex = int(floor(uv.y * imageSize.y - 0.5));
vec3 sample00 = image[WrapIndexY(yIndex) * 16 + WrapIndexX(xIndex)];
vec3 sample10 = image[WrapIndexY(yIndex) * 16 + WrapIndexX(xIndex + 1)];
vec3 sample01 = image[WrapIndexY(yIndex + 1) * 16 + WrapIndexX(xIndex)];
vec3 sample11 = image[WrapIndexY(yIndex + 1) * 16 + WrapIndexX(xIndex + 1)];
float xFactor = smoothstep(0.0, 1.0, fract(uv.x * imageSize.x - 0.5));
float yFactor = smoothstep(0.0, 1.0, fract(uv.y * imageSize.y - 0.5));
vec3 interpolated = mix(mix(sample00, sample10, xFactor), mix(sample01, sample11, xFactor), yFactor);
return interpolated;
}
vec2 hash( vec2 p )
{
p = vec2( dot(p,vec2(127.1,311.7)), dot(p,vec2(269.5,183.3)) );
return -1.0 + 2.0*fract(sin(p)*43758.5453123);
}
float simplexNoise( in vec2 p )
{
const float K1 = 0.366025404; // (sqrt(3)-1)/2;
const float K2 = 0.211324865; // (3-sqrt(3))/6;
vec2 i = floor( p + (p.x+p.y)*K1 );
vec2 a = p - i + (i.x+i.y)*K2;
float m = step(a.y,a.x);
vec2 o = vec2(m,1.0-m);
vec2 b = a - o + K2;
vec2 c = a - 1.0 + 2.0*K2;
vec3 h = max( 0.5-vec3(dot(a,a), dot(b,b), dot(c,c) ), 0.0 );
vec3 n = h*h*h*h*vec3( dot(a,hash(i+0.0)), dot(b,hash(i+o)), dot(c,hash(i+1.0)));
return dot( n, vec3(70.0) );
}
vec3 sampleJupiterBSmoothstepFilter(vec2 uv)
{
vec2 imageSize = vec2(16, 16);
const vec3 image[256] = vec3[](
vec3(0.969,0.937, 0.871),vec3(0.557,0.384, 0.329),vec3(0.969,0.937, 0.871),vec3(0.353,0.110, 0.063),vec3(0.753,0.643, 0.588),vec3(0.753,0.643, 0.588),vec3(0.753,0.643, 0.588),vec3(0.753,0.643, 0.588),vec3(0.804,0.690, 0.631),vec3(0.969,0.922, 0.871),vec3(0.643,0.463, 0.396),vec3(0.969,0.922, 0.871),vec3(0.353,0.094, 0.031),vec3(0.784,0.655, 0.569),vec3(0.784,0.655, 0.569),vec3(1.000,0.937, 0.839),
vec3(0.969,0.937, 0.871),vec3(0.557,0.384, 0.329),vec3(0.969,0.937, 0.871),vec3(0.557,0.384, 0.329),vec3(0.937,0.906, 0.839),vec3(0.937,0.906, 0.839),vec3(0.569,0.384, 0.341),vec3(0.753,0.643, 0.588),vec3(0.482,0.235, 0.161),vec3(0.804,0.690, 0.631),vec3(0.482,0.235, 0.161),vec3(0.969,0.922, 0.871),vec3(0.569,0.373, 0.298),vec3(1.000,0.937, 0.839),vec3(0.353,0.094, 0.031),vec3(0.784,0.655, 0.569),
vec3(0.969,0.937, 0.871),vec3(0.353,0.110, 0.063),vec3(0.761,0.659, 0.600),vec3(0.557,0.384, 0.329),vec3(0.753,0.643, 0.588),vec3(0.388,0.125, 0.094),vec3(0.753,0.643, 0.588),vec3(0.937,0.906, 0.839),vec3(0.482,0.235, 0.161),vec3(0.969,0.922, 0.871),vec3(0.482,0.235, 0.161),vec3(0.969,0.922, 0.871),vec3(0.569,0.373, 0.298),vec3(1.000,0.937, 0.839),vec3(0.784,0.655, 0.569),vec3(0.569,0.373, 0.298),
vec3(0.969,0.937, 0.871),vec3(0.353,0.110, 0.063),vec3(0.969,0.937, 0.871),vec3(0.557,0.384, 0.329),vec3(0.937,0.906, 0.839),vec3(0.388,0.125, 0.094),vec3(0.569,0.384, 0.341),vec3(0.937,0.906, 0.839),vec3(0.643,0.463, 0.396),vec3(0.804,0.690, 0.631),vec3(0.643,0.463, 0.396),vec3(0.804,0.690, 0.631),vec3(0.353,0.094, 0.031),vec3(0.784,0.655, 0.569),vec3(0.784,0.655, 0.569),vec3(0.569,0.373, 0.298),
vec3(0.451,0.235, 0.161),vec3(0.612,0.447, 0.384),vec3(0.612,0.447, 0.384),vec3(0.612,0.447, 0.384),vec3(0.290,0.141, 0.129),vec3(0.871,0.667, 0.549),vec3(0.290,0.141, 0.129),vec3(0.871,0.667, 0.549),vec3(0.525,0.306, 0.255),vec3(0.698,0.549, 0.482),vec3(0.698,0.549, 0.482),vec3(0.871,0.796, 0.710),vec3(0.722,0.580, 0.502),vec3(0.906,0.796, 0.710),vec3(0.537,0.369, 0.298),vec3(0.722,0.580, 0.502),
vec3(0.451,0.235, 0.161),vec3(0.451,0.235, 0.161),vec3(0.451,0.235, 0.161),vec3(0.451,0.235, 0.161),vec3(0.675,0.490, 0.408),vec3(0.675,0.490, 0.408),vec3(0.290,0.141, 0.129),vec3(0.290,0.141, 0.129),vec3(0.353,0.063, 0.031),vec3(0.353,0.063, 0.031),vec3(0.698,0.549, 0.482),vec3(0.525,0.306, 0.255),vec3(0.722,0.580, 0.502),vec3(0.537,0.369, 0.298),vec3(0.353,0.157, 0.094),vec3(0.722,0.580, 0.502),
vec3(0.612,0.447, 0.384),vec3(0.773,0.659, 0.612),vec3(0.612,0.447, 0.384),vec3(0.773,0.659, 0.612),vec3(0.675,0.490, 0.408),vec3(0.675,0.490, 0.408),vec3(0.871,0.667, 0.549),vec3(0.871,0.667, 0.549),vec3(0.698,0.549, 0.482),vec3(0.871,0.796, 0.710),vec3(0.871,0.796, 0.710),vec3(0.525,0.306, 0.255),vec3(0.722,0.580, 0.502),vec3(0.722,0.580, 0.502),vec3(0.722,0.580, 0.502),vec3(0.537,0.369, 0.298),
vec3(0.612,0.447, 0.384),vec3(0.937,0.875, 0.839),vec3(0.612,0.447, 0.384),vec3(0.773,0.659, 0.612),vec3(0.482,0.314, 0.267),vec3(0.482,0.314, 0.267),vec3(0.675,0.490, 0.408),vec3(0.675,0.490, 0.408),vec3(0.871,0.796, 0.710),vec3(0.525,0.306, 0.255),vec3(0.871,0.796, 0.710),vec3(0.525,0.306, 0.255),vec3(0.906,0.796, 0.710),vec3(0.353,0.157, 0.094),vec3(0.722,0.580, 0.502),vec3(0.722,0.580, 0.502),
vec3(0.525,0.388, 0.341),vec3(0.729,0.592, 0.525),vec3(0.322,0.188, 0.161),vec3(0.937,0.796, 0.710),vec3(0.569,0.431, 0.384),vec3(0.353,0.188, 0.161),vec3(1.000,0.922, 0.839),vec3(0.569,0.431, 0.384),vec3(0.871,0.729, 0.612),vec3(0.569,0.424, 0.376),vec3(0.718,0.576, 0.494),vec3(0.871,0.729, 0.612),vec3(0.937,0.827, 0.776),vec3(0.678,0.537, 0.471),vec3(0.678,0.537, 0.471),vec3(0.549,0.396, 0.322),
vec3(0.525,0.388, 0.341),vec3(0.937,0.796, 0.710),vec3(0.525,0.388, 0.341),vec3(0.937,0.796, 0.710),vec3(0.569,0.431, 0.384),vec3(0.353,0.188, 0.161),vec3(0.353,0.188, 0.161),vec3(0.569,0.431, 0.384),vec3(0.420,0.271, 0.259),vec3(0.569,0.424, 0.376),vec3(0.718,0.576, 0.494),vec3(0.569,0.424, 0.376),vec3(0.678,0.537, 0.471),vec3(0.678,0.537, 0.471),vec3(0.937,0.827, 0.776),vec3(0.678,0.537, 0.471),
vec3(0.525,0.388, 0.341),vec3(0.525,0.388, 0.341),vec3(0.322,0.188, 0.161),vec3(0.525,0.388, 0.341),vec3(0.353,0.188, 0.161),vec3(0.784,0.675, 0.612),vec3(0.569,0.431, 0.384),vec3(0.569,0.431, 0.384),vec3(0.718,0.576, 0.494),vec3(0.569,0.424, 0.376),vec3(0.569,0.424, 0.376),vec3(0.420,0.271, 0.259),vec3(0.549,0.396, 0.322),vec3(0.549,0.396, 0.322),vec3(0.937,0.827, 0.776),vec3(0.808,0.682, 0.624),
vec3(0.322,0.188, 0.161),vec3(0.937,0.796, 0.710),vec3(0.322,0.188, 0.161),vec3(0.729,0.592, 0.525),vec3(0.784,0.675, 0.612),vec3(0.784,0.675, 0.612),vec3(0.784,0.675, 0.612),vec3(0.569,0.431, 0.384),vec3(0.718,0.576, 0.494),vec3(0.569,0.424, 0.376),vec3(0.871,0.729, 0.612),vec3(0.718,0.576, 0.494),vec3(0.549,0.396, 0.322),vec3(0.549,0.396, 0.322),vec3(0.808,0.682, 0.624),vec3(0.937,0.827, 0.776),
vec3(0.847,0.776, 0.722),vec3(1.000,0.984, 0.937),vec3(0.847,0.776, 0.722),vec3(0.847,0.776, 0.722),vec3(0.557,0.396, 0.341),vec3(0.761,0.651, 0.588),vec3(0.761,0.651, 0.588),vec3(0.761,0.651, 0.588),vec3(0.761,0.651, 0.624),vec3(0.761,0.651, 0.624),vec3(0.761,0.651, 0.624),vec3(0.557,0.380, 0.376),vec3(0.804,0.718, 0.655),vec3(0.804,0.718, 0.655),vec3(0.804,0.718, 0.655),vec3(0.804,0.718, 0.655),
vec3(0.847,0.776, 0.722),vec3(0.847,0.776, 0.722),vec3(0.698,0.569, 0.506),vec3(0.847,0.776, 0.722),vec3(0.969,0.906, 0.839),vec3(0.557,0.396, 0.341),vec3(0.969,0.906, 0.839),vec3(0.969,0.906, 0.839),vec3(0.969,0.922, 0.871),vec3(0.969,0.922, 0.871),vec3(0.969,0.922, 0.871),vec3(0.969,0.922, 0.871),vec3(1.000,0.969, 0.937),vec3(1.000,0.969, 0.937),vec3(0.420,0.220, 0.094),vec3(0.612,0.467, 0.373),
vec3(0.847,0.776, 0.722),vec3(0.847,0.776, 0.722),vec3(0.847,0.776, 0.722),vec3(1.000,0.984, 0.937),vec3(0.353,0.141, 0.094),vec3(0.353,0.141, 0.094),vec3(0.969,0.906, 0.839),vec3(0.557,0.396, 0.341),vec3(0.761,0.651, 0.624),vec3(0.761,0.651, 0.624),vec3(0.761,0.651, 0.624),vec3(0.761,0.651, 0.624),vec3(1.000,0.969, 0.937),vec3(0.420,0.220, 0.094),vec3(1.000,0.969, 0.937),vec3(0.420,0.220, 0.094),
vec3(0.549,0.365, 0.290),vec3(0.847,0.776, 0.722),vec3(0.549,0.365, 0.290),vec3(0.847,0.776, 0.722),vec3(0.557,0.396, 0.341),vec3(0.969,0.906, 0.839),vec3(0.969,0.906, 0.839),vec3(0.761,0.651, 0.588),vec3(0.969,0.922, 0.871),vec3(0.353,0.110, 0.129),vec3(0.969,0.922, 0.871),vec3(0.761,0.651, 0.624),vec3(1.000,0.969, 0.937),vec3(0.804,0.718, 0.655),vec3(1.000,0.969, 0.937),vec3(0.420,0.220, 0.094));
int xIndex = int(floor(uv.x * imageSize.x - 0.5));
int yIndex = int(floor(uv.y * imageSize.y - 0.5));
vec3 sample00 = image[WrapIndexY(yIndex) * 16 + WrapIndexX(xIndex)];
vec3 sample10 = image[WrapIndexY(yIndex) * 16 + WrapIndexX(xIndex + 1)];
vec3 sample01 = image[WrapIndexY(yIndex + 1) * 16 + WrapIndexX(xIndex)];
vec3 sample11 = image[WrapIndexY(yIndex + 1) * 16 + WrapIndexX(xIndex + 1)];
float xFactor = smoothstep(0.0, 1.0, fract(uv.x * imageSize.x - 0.5));
float yFactor = smoothstep(0.0, 1.0, fract(uv.y * imageSize.y - 0.5));
vec3 interpolated = mix(mix(sample00, sample10, xFactor), mix(sample01, sample11, xFactor), yFactor);
return interpolated;
}
vec2 QuakeLavaUV(vec2 coords, float amplitude, float speed, float frequency, float time)
{
float scaledTime = time * speed;
vec2 scaledCoords = coords * frequency;
float x = sin(scaledTime + scaledCoords.x) * amplitude;
float y = sin(scaledTime + scaledCoords.y) * amplitude;
return vec2(coords.x, -coords.y) + vec2(y, x);
}
float SeedFromResolution(vec3 resolution) {
return resolution.x - resolution.y;
}
// Maps UV coordinates to a sphere's surface
vec4 generateSphereSurfaceWithMask(vec2 uv, float radius) {
float radiusSquared = radius * radius;
float uvLengthSquared = dot(uv, uv);
float uvLength = sqrt(uvLengthSquared);
float mask = step(uvLength, radius);
vec3 surface = vec3(0.0, 0.0, 0.0);
if(mask > 0.0)
{
surface = vec3(uv / radius, sqrt(radiusSquared - uvLengthSquared));
}
else
{
surface = vec3(uv / uvLength, uvLength - radius);
}
return vec4(surface, mask);
}
vec2 generateSphericalUV(vec3 position, float spin)
{
float width = sqrt(1.0 - position.y * position.y);
float generatrixX = position.x / width;
vec2 generatrix = vec2(generatrixX, position.y);
vec2 uv = asin(generatrix) / 3.14159 + vec2(0.5 + spin, 0.5);
return vec2(uv.x, -uv.y);
}
mat3 createRotationMatrix(float pitch, float roll) {
float cosPitch = cos(pitch);
float sinPitch = sin(pitch);
float cosRoll = cos(roll);
float sinRoll = sin(roll);
return mat3(
vec3(cosRoll, -sinRoll * cosPitch, sinRoll * sinPitch),
vec3(sinRoll, cosRoll * cosPitch, -cosRoll * sinPitch),
vec3(0.0, sinPitch, cosPitch)
);
}
vec4 atmosphere( vec4 sphereSurfaceWithMask, vec3 lightDirection, vec3 atmosphereColor, float haloWidth, float minAtmosphere, float maxAtmosphere, float falloff){
vec3 absorbtion = vec3(2.0, 3.0, 4.0);
float inverseWidth = 1.0 / haloWidth;
float fresnelBlend = pow(1.0 - sphereSurfaceWithMask.z, falloff);
float amount = mix(minAtmosphere, maxAtmosphere, fresnelBlend);
vec3 normal = sphereSurfaceWithMask.xyz;
if(sphereSurfaceWithMask.w < 0.5)
{
float haloBlend = pow(max(1.0 - sphereSurfaceWithMask.z*inverseWidth, 0.0), 5.0);
amount = haloBlend * maxAtmosphere;
normal = vec3(sphereSurfaceWithMask.xy, 0.0);
}
float light = max((dot(normal, lightDirection)+0.3)/1.3, 0.0);
vec3 absorbedLight = vec3( pow(light, absorbtion.x), pow(light, absorbtion.y),pow(light, absorbtion.z) );
vec3 litAtmosphere = absorbedLight * atmosphereColor;
return vec4(litAtmosphere, amount);
}
// Main image rendering function
void fragment() {
float aspectRatio = SCREEN_PIXEL_SIZE.y / SCREEN_PIXEL_SIZE.x;
vec2 uv = (SCREEN_UV - 0.5 ) * vec2(aspectRatio , 1.0);
uv.y = -uv.y;
float minDimension = min(SCREEN_PIXEL_SIZE.x, SCREEN_PIXEL_SIZE.y);
float maxDimension = max(SCREEN_PIXEL_SIZE.x, SCREEN_PIXEL_SIZE.y);
float maxAspectRatio = minDimension / maxDimension;
vec2 aspectFactor = vec2(maxAspectRatio, 1.0);
vec3 lightDirection = normalize(light_direction);
//Jupiter
vec4 jupiterSurfaceWithMask = generateSphereSurfaceWithMask(uv + sphere1_disp, sphere1_size);
float jupiterLight = pow(max(dot(lightDirection, jupiterSurfaceWithMask.xyz), 0.0), 0.8);
vec4 jupiterAtmosphere = atmosphere( jupiterSurfaceWithMask, lightDirection, atmosphere1_color * atmosphere1_factor, halo1_width, min_atmosphere1, max_atmosphere1, fall_off1);
float jupiterMask = clamp(jupiterSurfaceWithMask.w, 0.0, 1.0);
mat3 jupiterRotationMatrix = createRotationMatrix(rotation_matrix1.x, rotation_matrix1.y);
vec3 rotatedJupiter = jupiterRotationMatrix * (jupiterSurfaceWithMask.xyz * jupiterMask);
vec2 jupiterUV = generateSphericalUV(rotatedJupiter, iTime * rotation_speed1);
vec3 jupiterTexture = texture(sphere1_texture, fract(((jupiterUV * texture1_uv_scale + texture1_disp)* aspectFactor)/aspectFactor)).xyz;
jupiterTexture = vec3(pow(jupiterTexture.x, texture1_color.x), pow(jupiterTexture.y, texture1_color.y), pow(jupiterTexture.z, texture1_color.z))*texture1_color.w;
//Io
vec4 ioSurfaceWithMask = generateSphereSurfaceWithMask(uv + sphere2_disp, sphere2_size);
float ioLight = pow(max(dot(lightDirection, ioSurfaceWithMask.xyz), 0.0), 0.4);
vec4 ioAtmosphere = atmosphere( ioSurfaceWithMask, lightDirection, atmosphere2_color * atmosphere2_factor, halo2_width, min_atmosphere2, max_atmosphere2, fall_off2);
float ioMask = clamp(ioSurfaceWithMask.w, 0.0, 1.0);
mat3 ioRotationMatrix = createRotationMatrix(rotation_matrix2.x, rotation_matrix2.y);
vec3 rotatedIo = ioRotationMatrix * (ioSurfaceWithMask.xyz * ioMask);
vec2 ioUV = generateSphericalUV(rotatedIo, -iTime*rotation_speed2);
vec3 ioTexture = texture(sphere2_texture, fract(((ioUV * texture2_uv_scale + texture2_disp)* aspectFactor)/aspectFactor)).xyz;
ioTexture = vec3(min(pow(1.0 - ioTexture.x, 5.5)*2.0, 1.0));
//ioTexture = vec3(pow(ioTexture.x, texture2_color.x), pow(ioTexture.y, texture2_color.y), pow(ioTexture.z, texture2_color.z))*texture2_color.w;
//Stars
vec3 stars = vec3(pow(texture(stars_texture, fract(uv * 0.5)).x, stars_bias)) * stars_color * stars_factor;
vec2 nebulaUV = QuakeLavaUV(uv, quake_lava_amplitude, quake_lava_speed, quake_lava_frequency, iTime);
vec3 nebulaTexture = texture(nebula_texture, fract(nebulaUV)).xyz;
float nabulaFade = pow(max(1.0 - uv.y, 0.0), nabula_fade1)*nabula_fade2;
vec3 nebulaTint = nebula_tint;
vec3 nebula = vec3(pow(nebulaTexture.x, 2.00)) * nabulaFade * nebulaTint;
stars += nebula;
//Combining
vec3 jupiterWithBackground = mix(stars, jupiterTexture * jupiterLight, jupiterMask);
vec3 jupiterWithAtmosphere = mix(jupiterWithBackground, jupiterAtmosphere.xyz, jupiterAtmosphere.w);
vec3 jupiterWithIo = mix(jupiterWithAtmosphere, ioTexture * ioLight, ioMask);
vec3 jupiterWithIoWithAtmosphere = mix(jupiterWithIo, ioAtmosphere.xyz, ioAtmosphere.w);
vec2 overlayUV = UV * .01;
vec3 overlayColor = mix(0.3, 0.9, pow(overlayUV.x, 1.7)) * vec3(1.0, 0.35, 0.1)*1.4;
vec3 imageWithOverlay = mix(jupiterWithIoWithAtmosphere, overlayColor, pow(1.0 - overlayUV.y*0.5, 5.0)*0.7 + 0.1);
COLOR = vec4(imageWithOverlay, 1.0);
}
