d61d2f19ed
Removed redundant code from raymarching implementation Moved last remaining raymarching variable (Extinction) to environment settings
112 lines
5.3 KiB
C#
112 lines
5.3 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.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 Material VolMaterial;
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public Transform GridTransform;
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public GameSettings Settings;
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//public int DownsampleBlurMask = 2;
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// private Camera _camera;
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// private RenderBuffer[] _mrt;
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private Texture2D _blurMask;
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private Texture2D _disabledBlurMask;
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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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public bool EnableDepth { get; set; } = true;
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private void Start()
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{
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//Debug.Log($"Supported MRT count: {SystemInfo.supportedRenderTargetCount}");
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// _camera = GetComponent<Camera>();
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// _mrt = new RenderBuffer[2];
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//_blurMask = new RenderTexture(Screen.width, Screen.height, 0, GraphicsFormat.R8_UNorm);
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_blurMask = Color.white.ToTexture();
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_disabledBlurMask = Color.black.ToTexture();
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}
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//[ImageEffectOpaque]
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void Update()
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{
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// // check for no shader / shader compile error
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// if( VolMaterial == null )
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// {
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// Graphics.Blit(source, destination);
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// return;
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// }
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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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//
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// Shader needs this matrix to generate world space rays
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// Shader.SetGlobalMatrix("_CamProj", (Camera.current.projectionMatrix * Camera.current.worldToCameraMatrix).inverse);
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// Shader.SetGlobalMatrix("_CamInvProj", (Camera.current.projectionMatrix * Camera.current.worldToCameraMatrix).inverse);
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// _mrt[0] = destination.colorBuffer;
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// _mrt[1] = _blurMask.colorBuffer;
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//
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// // Blit with a MRT.
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// Graphics.SetRenderTarget(_mrt, source.depthBuffer);
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//
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// Graphics.Blit( source, VolMaterial, 0 );
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//Graphics.Blit(rt1, destination);
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if(EnableDepth)
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Shader.SetGlobalTexture("_DoFBlurTex", _blurMask);
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else
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Shader.SetGlobalTexture("_DoFBlurTex", _disabledBlurMask);
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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("_NoiseScale", Settings.DefaultEnvironment.Noise.Scale);
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Shader.SetGlobalFloat("_NoiseExponent", Settings.DefaultEnvironment.Noise.Exponent);
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Shader.SetGlobalFloat("_NoiseAmplitude", Settings.DefaultEnvironment.Noise.Amplitude);
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Shader.SetGlobalFloat("_NoiseSpeed", 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("_FlowSpeed", Settings.DefaultEnvironment.Flow.Speed);
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}
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}
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