c3329cecc4
Modified stardust & nebula shaders such that flow velocity is consistent: Volumetric:flow now represents global velocity in meters per second
72 lines
4.1 KiB
C#
72 lines
4.1 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 Transform GridTransform;
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public GameSettings Settings;
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private float _flowScroll;
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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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void Update()
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{
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// Shader needs to know the position and scale of cameras used to render input textures
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if(GridTransform != null)
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Shader.SetGlobalVector("_GridTransform", new Vector4(GridTransform.position.x,GridTransform.position.z,GridTransform.localScale.x));
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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", Settings.DefaultEnvironment.Nebula.FillDensity);
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Shader.SetGlobalFloat("_NebulaFillDistance", Settings.DefaultEnvironment.Nebula.FillDistance);
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Shader.SetGlobalFloat("_NebulaFillExponent", Settings.DefaultEnvironment.Nebula.FillExponent);
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Shader.SetGlobalFloat("_NebulaFillOffset", Settings.DefaultEnvironment.Nebula.FillOffset);
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Shader.SetGlobalFloat("_NebulaFloorDensity", Settings.DefaultEnvironment.Nebula.FloorDensity);
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Shader.SetGlobalFloat("_NebulaPatchDensity", Settings.DefaultEnvironment.Nebula.PatchDensity);
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Shader.SetGlobalFloat("_NebulaFloorOffset", Settings.DefaultEnvironment.Nebula.FloorOffset);
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Shader.SetGlobalFloat("_NebulaFloorBlend", Settings.DefaultEnvironment.Nebula.FloorBlend);
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Shader.SetGlobalFloat("_NebulaPatchBlend", Settings.DefaultEnvironment.Nebula.PatchBlend);
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Shader.SetGlobalFloat("_NebulaLuminance", Settings.DefaultEnvironment.Nebula.Luminance);
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Shader.SetGlobalFloat("_ExtinctionCoefficient", Settings.DefaultEnvironment.Nebula.Extinction);
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Shader.SetGlobalFloat("_TintExponent", Settings.DefaultEnvironment.Nebula.TintExponent);
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Shader.SetGlobalFloat("_TintLodExponent", Settings.DefaultEnvironment.Nebula.TintLodExponent);
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Shader.SetGlobalFloat("_SafetyDistance", Settings.DefaultEnvironment.Nebula.SafetyDistance);
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Shader.SetGlobalFloat("_DynamicSkyBoost", Settings.DefaultEnvironment.Nebula.DynamicSkyBoost);
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Shader.SetGlobalFloat("_DynamicLodRange", Settings.DefaultEnvironment.Nebula.DynamicLodRange);
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Shader.SetGlobalFloat("_DynamicLodBias", Settings.DefaultEnvironment.Nebula.DynamicLodBias);
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Shader.SetGlobalFloat("_DynamicIntensity", Settings.DefaultEnvironment.Nebula.DynamicIntensity);
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Shader.SetGlobalFloat("_NebulaNoiseScale", Settings.DefaultEnvironment.Noise.Scale);
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Shader.SetGlobalFloat("_NebulaNoiseExponent", Settings.DefaultEnvironment.Noise.Exponent);
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Shader.SetGlobalFloat("_NebulaNoiseAmplitude", Settings.DefaultEnvironment.Noise.Amplitude);
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Shader.SetGlobalFloat("_NebulaNoiseSpeed", Settings.DefaultEnvironment.Noise.Speed);
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Shader.SetGlobalFloat("_FlowScale", Settings.DefaultEnvironment.Flow.Scale);
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Shader.SetGlobalFloat("_FlowAmplitude", Settings.DefaultEnvironment.Flow.Amplitude);
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_flowScroll += Settings.DefaultEnvironment.Flow.ScrollSpeed * Time.deltaTime;
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Shader.SetGlobalFloat("_FlowScroll", _flowScroll);
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Shader.SetGlobalFloat("_FlowPeriod", Settings.DefaultEnvironment.Flow.Period);
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}
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}
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