c4be204cd0
Added MPL license headers SectorRenderer renders entities in sector, manages particle systems for ship thrusters Thrusters apply torque based on orientation and position relative to ship center of mass GameManager controls the player ship's thrusters Player can dock with station if they are near
132 lines
4 KiB
Text
132 lines
4 KiB
Text
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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Shader "Unlit/GalaxyMap"
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{
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Properties
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{
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_MainTex ("Texture", 2D) = "white" {}
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_CloudColor ("CloudColor", Color) = (1,1,1,1)
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_GlowColor ("GlowColor", Color) = (1,1,1,1)
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Arms("Arms", Float) = 4
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Twist("Twist", Float) = 180
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TwistPower("TwistPower", Float) = 1
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SpokeOffset("SpokeOffset", Float) = 1
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SpokeScale("SpokeScale", Float) = 1
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CoreBoost("CoreBoost", Float) = 1
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CoreBoostOffset("CoreBoostOffset", Float) = 0
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CoreBoostPower("CoreBoostPower", Float) = 1
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EdgeReduction("EdgeReduction", Float) = 1
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NoisePosition("NoisePosition", Float) = 0.5
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NoiseAmplitude("NoiseAmplitude", Float) = 0.5
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NoiseOffset("NoiseOffset", Float) = 0.5
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NoiseGain("NoiseGain", Float) = 1
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NoiseLacunarity("NoiseLacunarity", Float) = 2
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NoiseFrequency("NoiseFrequency", Float) = 1
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GlowOffset("GlowOffset", Float) = 0
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GlowAmount("GlowAmount", Float) = 0
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GlowPower("GlowPower", Float) = 0
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StarBoost("StarBoost", Float) = 0
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GalaxyAmplitude("GalaxyAmplitude", Float) = 1
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}
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SubShader
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{
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Tags { "Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent" "PreviewType"="Plane" }
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LOD 100
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Blend One One
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Cull Off Lighting Off ZWrite Off
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Pass
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{
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CGPROGRAM
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#pragma vertex vert
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#pragma fragment frag
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#include "UnityCG.cginc"
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#include "Assets/Scripts/NIH/GPU Noise/SimplexNoise2D.cginc"
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struct appdata
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{
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float4 vertex : POSITION;
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float2 uv : TEXCOORD0;
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};
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struct v2f
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{
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float2 uv : TEXCOORD0;
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float2 uv2 : TEXCOORD1;
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float4 vertex : SV_POSITION;
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};
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sampler2D _MainTex;
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float4 _MainTex_ST;
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fixed4 _CloudColor;
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fixed4 _GlowColor;
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float Arms;
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float Twist;
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float TwistPower;
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float SpokeOffset;
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float SpokeScale;
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float CoreBoost;
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float CoreBoostOffset;
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float CoreBoostPower;
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float EdgeReduction;
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float NoisePosition;
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float NoiseAmplitude;
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float NoiseOffset;
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float NoiseGain;
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float NoiseLacunarity;
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//int NoiseOctaves = 7;
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float NoiseFrequency;
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float GlowOffset;
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float GlowAmount;
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float GlowPower;
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float StarBoost;
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float GalaxyAmplitude;
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v2f vert (appdata v)
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{
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v2f o;
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o.vertex = UnityObjectToClipPos(v.vertex);
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o.uv = v.uv;
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o.uv2 = TRANSFORM_TEX(v.uv, _MainTex);
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return o;
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}
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// fractal sum, range -1.0 - 1.0
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float fBm(float2 p, int octaves)
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{
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float freq = NoiseFrequency, amp = .5;
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float sum = 0;
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for(int i = 0; i < octaves; i++)
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{
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sum += snoise(p * freq) * amp;
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freq *= NoiseLacunarity;
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amp *= NoiseGain;
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}
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return (sum + NoiseOffset)*NoiseAmplitude;
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}
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fixed4 frag (v2f i) : SV_Target
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{
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float2 offset = -(.5).xx+i.uv;
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float circle = (.5-length(offset))*2;
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clip(circle);
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float angle = pow(length(offset)*2,TwistPower) * Twist;
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float2 twist = float2(offset.x*cos(angle) - offset.y*sin(angle), offset.x*sin(angle) + offset.y*cos(angle));
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float atan = atan2(twist.y,twist.x);
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float spokes = (sin(atan*Arms) + SpokeOffset) * SpokeScale;
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float noise = fBm(i.uv + NoisePosition.xx, 8);
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float shape = lerp(spokes - EdgeReduction * length(offset), 1, pow(circle, CoreBoostPower) * CoreBoost + CoreBoostOffset);
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float gal = max(shape - noise * clamp(circle,0,1), 0) * GalaxyAmplitude;
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float glow = (pow(circle,GlowPower) + GlowOffset) * GlowAmount;
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float stars = tex2D(_MainTex, i.uv2) * clamp(shape*StarBoost, 0, 1);
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fixed4 col = fixed4(gal*_CloudColor.rgb + glow*_GlowColor.rgb + stars.xxx, 1);
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return col;
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}
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ENDCG
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}
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}
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}
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