69aca09f63
Removed hard zone boundaries Fixed stuff that broke because of hard zone boundary assumption (stardust placement, vertical fog) Added a skybox! Removed density-based albedo boost (_TintExponent) to improve perceptual uniformity at different step sizes, reconfigured shader to achieve / surpass previous looks and performance Cell Brush has a material editor now to enable variant selection Enabled Caching Shader Preprocessor Moved raymarching loop into CloudShader Get environment settings from game manager to enable configuration / variation Introduced slope-based nebulae damping and volumetric flow Hid optional volumetric features behind preprocessor branches Created shader variants selected by global keywords for all shaders depending on volumetrics Environment settings used to configure shader variant selection Moved dynamic lighting settings to own subclass Dynamically adjust gravity map isoline contour depth range according to zone contents
94 lines
4.7 KiB
C#
94 lines
4.7 KiB
C#
/* 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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using System;
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using UnityEngine;
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using Unity.Mathematics;
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using UnityEngine.Experimental.Rendering;
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using UnityEngine.Rendering;
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using UnityEngine.Serialization;
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using static Unity.Mathematics.math;
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using static Unity.Mathematics.noise;
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/// <summary>
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/// Drives the volume render.
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/// </summary>
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[ExecuteInEditMode]
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[RequireComponent( typeof( Camera ) )]
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public class VolumeSampling : MonoBehaviour
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{
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public Camera GridCamera;
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public GameSettings Settings;
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public RenderTexture NebulaSurfaceHeight;
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public RenderTexture NebulaPatchHeight;
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public RenderTexture NebulaPatch;
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public RenderTexture NebulaTint;
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private float _flowScroll;
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private Transform _gridTransform;
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private GlobalKeyword _keywordFlowGlobal;
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private GlobalKeyword _keywordFlowSlope;
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private GlobalKeyword _keywordNoiseSlope;
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private void Start()
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{
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_keywordFlowGlobal = GlobalKeyword.Create("FLOW_GLOBAL");
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_keywordFlowSlope = GlobalKeyword.Create("FLOW_SLOPE");
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_keywordNoiseSlope = GlobalKeyword.Create("NOISE_SLOPE");
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}
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void Update()
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{
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if(_gridTransform==null)
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_gridTransform = GridCamera?.transform;
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// Shader needs to know the position and scale of cameras used to render input textures
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if(GridCamera != null)
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Shader.SetGlobalVector("_GridTransform", new Vector4(_gridTransform.position.x,_gridTransform.position.z,GridCamera.orthographicSize*2));
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var environment = ActionGameManager.Instance?.CurrentEnvironment ?? Settings.DefaultEnvironment;
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// Volumetric sampling parameters are used by several shaders
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Shader.SetGlobalTexture("_NebulaSurfaceHeight", NebulaSurfaceHeight);
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Shader.SetGlobalTexture("_NebulaPatchHeight", NebulaPatchHeight);
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Shader.SetGlobalTexture("_NebulaPatch", NebulaPatch);
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Shader.SetGlobalTexture("_NebulaTint", NebulaTint);
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Shader.SetGlobalFloat("_NebulaFillDensity", environment.Nebula.FillDensity);
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Shader.SetGlobalFloat("_NebulaFillDistance", environment.Nebula.FillDistance);
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Shader.SetGlobalFloat("_NebulaFillExponent", environment.Nebula.FillExponent);
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Shader.SetGlobalFloat("_NebulaFillOffset", environment.Nebula.FillOffset);
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Shader.SetGlobalFloat("_NebulaPatchDensity", environment.Nebula.PatchDensity);
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Shader.SetGlobalFloat("_NebulaFloorOffset", environment.Nebula.FloorOffset);
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Shader.SetGlobalFloat("_NebulaFloorBlend", environment.Nebula.FloorBlend);
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Shader.SetGlobalFloat("_NebulaPatchBlend", environment.Nebula.PatchBlend);
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Shader.SetGlobalFloat("_NebulaLuminance", environment.Nebula.Luminance);
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Shader.SetGlobalFloat("_ExtinctionCoefficient", environment.Nebula.Extinction);
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Shader.SetGlobalFloat("_TintLodExponent", environment.Nebula.TintLodExponent);
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Shader.SetGlobalFloat("_SafetyDistance", environment.Nebula.SafetyDistance);
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Shader.SetGlobalFloat("_DynamicSkyBoost", environment.Lighting.DynamicSkyBoost);
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Shader.SetGlobalFloat("_DynamicLodHigh", environment.Lighting.DynamicLodHigh);
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Shader.SetGlobalFloat("_DynamicLodLow", environment.Lighting.DynamicLodLow);
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Shader.SetGlobalFloat("_DynamicIntensity", environment.Lighting.DynamicIntensity);
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Shader.SetGlobalFloat("_NebulaNoiseScale", environment.Noise.Scale);
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Shader.SetGlobalFloat("_NebulaNoiseExponent", environment.Noise.Exponent);
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Shader.SetGlobalFloat("_NebulaNoiseAmplitude", environment.Noise.Amplitude);
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Shader.SetGlobalFloat("_NebulaNoiseSpeed", environment.Noise.Speed);
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Shader.SetGlobalFloat("_NebulaNoiseSlopeExponent", environment.Noise.SlopeExponent);
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Shader.SetGlobalFloat("_FlowScale", environment.Flow.GlobalScale);
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Shader.SetGlobalFloat("_FlowAmplitude", environment.Flow.GlobalAmplitude);
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Shader.SetGlobalFloat("_FlowSlopeAmplitude", environment.Flow.SlopeAmplitude);
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Shader.SetGlobalFloat("_FlowSwirlAmplitude", environment.Flow.SwirlAmplitude);
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_flowScroll += environment.Flow.GlobalScrollSpeed * Time.deltaTime;
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Shader.SetGlobalFloat("_FlowScroll", _flowScroll);
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Shader.SetGlobalFloat("_FlowPeriod", environment.Flow.Period);
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Shader.SetKeyword(_keywordFlowGlobal, environment.Flow.GlobalAmplitude != 0);
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Shader.SetKeyword(_keywordFlowSlope, environment.Flow.SlopeAmplitude != 0 || environment.Flow.SwirlAmplitude != 0);
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Shader.SetKeyword(_keywordNoiseSlope, environment.Noise.SlopeExponent != 0);
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}
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}
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