Assignment for RMIT Mixed Reality in 2020
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using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Rendering;
public class OvrAvatarMaterialManager : MonoBehaviour
{
private Renderer TargetRenderer;
private AvatarTextureArrayProperties[] TextureArrays;
public enum TextureType
{
DiffuseTextures = 0,
NormalMaps,
RoughnessMaps,
Count
}
// Material properties required to render a single component
public struct AvatarComponentMaterialProperties
{
public ovrAvatarBodyPartType TypeIndex;
public Color Color;
public Texture2D[] Textures;
public float DiffuseIntensity;
public float RimIntensity;
public float ReflectionIntensity;
}
// Texture arrays
public struct AvatarTextureArrayProperties
{
public Texture2D[] Textures;
public Texture2DArray TextureArray;
}
// Material property arrays that are pushed to the shader
public struct AvatarMaterialPropertyBlock
{
public Vector4[] Colors;
public float[] DiffuseIntensities;
public float[] RimIntensities;
public float[] ReflectionIntensities;
}
private readonly string[] TextureTypeToShaderProperties =
{
"_MainTex", // TextureType.DiffuseTextures = 0
"_NormalMap", // TextureType.NormalMaps
"_RoughnessMap" // TextureType.RoughnessMaps
};
// Container class for all the data relating to an avatar material description
[System.Serializable]
public class AvatarMaterialConfig
{
public AvatarComponentMaterialProperties[] ComponentMaterialProperties;
public AvatarMaterialPropertyBlock MaterialPropertyBlock;
}
// Local config that this manager instance will render
public AvatarMaterialConfig LocalAvatarConfig = new AvatarMaterialConfig();
public List<ReflectionProbeBlendInfo> ReflectionProbes = new List<ReflectionProbeBlendInfo>();
// Cache the previous shader when swapping in the loading shader.
private Shader CombinedShader;
// Shader properties
public static string AVATAR_SHADER_LOADER = "OvrAvatar/Avatar_Mobile_Loader";
public static string AVATAR_SHADER_MAINTEX = "_MainTex";
public static string AVATAR_SHADER_NORMALMAP = "_NormalMap";
public static string AVATAR_SHADER_ROUGHNESSMAP = "_RoughnessMap";
public static string AVATAR_SHADER_COLOR = "_BaseColor";
public static string AVATAR_SHADER_DIFFUSEINTENSITY = "_DiffuseIntensity";
public static string AVATAR_SHADER_RIMINTENSITY = "_RimIntensity";
public static string AVATAR_SHADER_REFLECTIONINTENSITY = "_ReflectionIntensity";
public static string AVATAR_SHADER_CUBEMAP = "_Cubemap";
public static string AVATAR_SHADER_ALPHA = "_Alpha";
public static string AVATAR_SHADER_LOADING_DIMMER = "_LoadingDimmer";
public static string AVATAR_SHADER_IRIS_COLOR = "_MaskColorIris";
public static string AVATAR_SHADER_LIP_COLOR = "_MaskColorLips";
public static string AVATAR_SHADER_BROW_COLOR = "_MaskColorBrows";
public static string AVATAR_SHADER_LASH_COLOR = "_MaskColorLashes";
public static string AVATAR_SHADER_SCLERA_COLOR = "_MaskColorSclera";
public static string AVATAR_SHADER_GUM_COLOR = "_MaskColorGums";
public static string AVATAR_SHADER_TEETH_COLOR = "_MaskColorTeeth";
public static string AVATAR_SHADER_LIP_SMOOTHNESS = "_LipSmoothness";
// Diffuse Intensity constants: body, clothes, eyewear, hair, beard
public static float[] DiffuseIntensities = new[] {0.3f, 0.1f, 0f, 0.15f, 0.15f};
// Rim Intensity constants: body, clothes, eyewear, hair, beard
public static float[] RimIntensities = new[] {5f, 2f, 2.84f, 4f, 4f};
// Reflection Intensity constants: body, clothes, eyewear, hair, beard
public static float[] ReflectionIntensities = new[] {0f, 0.3f, 0.4f, 0f, 0f};
// Loading animation
private const float LOADING_ANIMATION_AMPLITUDE = 0.5f;
private const float LOADING_ANIMATION_PERIOD = 0.35f;
private const float LOADING_ANIMATION_CURVE_SCALE = 0.25f;
private const float LOADING_ANIMATION_DIMMER_MIN = 0.3f;
public void CreateTextureArrays()
{
const int componentCount = (int)ovrAvatarBodyPartType.Count;
const int textureTypeCount = (int)TextureType.Count;
LocalAvatarConfig.ComponentMaterialProperties = new AvatarComponentMaterialProperties[componentCount];
LocalAvatarConfig.MaterialPropertyBlock.Colors = new Vector4[componentCount];
LocalAvatarConfig.MaterialPropertyBlock.DiffuseIntensities = new float[componentCount];
LocalAvatarConfig.MaterialPropertyBlock.RimIntensities = new float[componentCount];
LocalAvatarConfig.MaterialPropertyBlock.ReflectionIntensities = new float[componentCount];
for (int i = 0; i < LocalAvatarConfig.ComponentMaterialProperties.Length; ++i)
{
LocalAvatarConfig.ComponentMaterialProperties[i].Textures = new Texture2D[textureTypeCount];
}
TextureArrays = new AvatarTextureArrayProperties[textureTypeCount];
}
public void SetRenderer(Renderer renderer)
{
TargetRenderer = renderer;
TargetRenderer.GetClosestReflectionProbes(ReflectionProbes);
}
public void OnCombinedMeshReady()
{
InitTextureArrays();
SetMaterialPropertyBlock();
// Callback to delete texture set once the avatar is fully loaded
StartCoroutine(RunLoadingAnimation(DeleteTextureSet));
}
// Add a texture ID so that it's managed for deletion
public void AddTextureIDToTextureManager(ulong assetID, bool isSingleComponent)
{
OvrAvatarSDKManager.Instance.GetTextureCopyManager().AddTextureIDToTextureSet(
GetInstanceID(), assetID, isSingleComponent);
}
// Once avatar loading is completed trigger the texture set for deletion
private void DeleteTextureSet()
{
OvrAvatarSDKManager.Instance.GetTextureCopyManager().DeleteTextureSet(GetInstanceID());
}
// Prepare texture arrays and copy to GPU
public void InitTextureArrays()
{
var localProps = LocalAvatarConfig.ComponentMaterialProperties[0];
for (int i = 0; i < TextureArrays.Length && i < localProps.Textures.Length; i++)
{
TextureArrays[i].TextureArray = new Texture2DArray(
localProps.Textures[0].height, localProps.Textures[0].width,
LocalAvatarConfig.ComponentMaterialProperties.Length,
localProps.Textures[0].format,
true,
QualitySettings.activeColorSpace == ColorSpace.Gamma ? false : true
) { filterMode = FilterMode.Trilinear,
//Can probably get away with 4 for roughness maps as well, once we switch
//to BC7/ASTC4x4 texture compression.
anisoLevel = (TextureType)i == TextureType.RoughnessMaps ? 16 : 4 };
//So a name shows up in Renderdoc
TextureArrays[i].TextureArray.name = string.Format("Texture Array Type: {0}", (TextureType)i);
TextureArrays[i].Textures
= new Texture2D[LocalAvatarConfig.ComponentMaterialProperties.Length];
for (int j = 0; j < LocalAvatarConfig.ComponentMaterialProperties.Length; j++)
{
TextureArrays[i].Textures[j]
= LocalAvatarConfig.ComponentMaterialProperties[j].Textures[i];
//So a name shows up in Renderdoc
TextureArrays[i].Textures[j].name = string.Format("Texture Type: {0} Component: {1}", (TextureType)i, j);
}
ProcessTexturesWithMips(
TextureArrays[i].Textures,
localProps.Textures[i].height,
TextureArrays[i].TextureArray);
}
}
private void ProcessTexturesWithMips(
Texture2D[] textures,
int texArrayResolution,
Texture2DArray texArray)
{
for (int i = 0; i < textures.Length; i++)
{
int currentMipSize = texArrayResolution;
int correctNumberOfMips = textures[i].mipmapCount - 1;
// Add mips to copyTexture queue in low-high order from correctNumberOfMips..0
for (int mipLevel = correctNumberOfMips; mipLevel >= 0; mipLevel--)
{
int mipSize = texArrayResolution / currentMipSize;
OvrAvatarSDKManager.Instance.GetTextureCopyManager().CopyTexture(
textures[i],
texArray,
mipLevel,
mipSize,
i,
false);
currentMipSize /= 2;
}
}
}
private void SetMaterialPropertyBlock()
{
if (TargetRenderer != null)
{
for (int i = 0; i < LocalAvatarConfig.ComponentMaterialProperties.Length; i++)
{
LocalAvatarConfig.MaterialPropertyBlock.Colors[i]
= LocalAvatarConfig.ComponentMaterialProperties[i].Color;
LocalAvatarConfig.MaterialPropertyBlock.DiffuseIntensities[i] = DiffuseIntensities[i];
LocalAvatarConfig.MaterialPropertyBlock.RimIntensities[i] = RimIntensities[i];
LocalAvatarConfig.MaterialPropertyBlock.ReflectionIntensities[i] = ReflectionIntensities[i];
}
}
}
private void ApplyMaterialPropertyBlock()
{
MaterialPropertyBlock materialPropertyBlock = new MaterialPropertyBlock();
materialPropertyBlock.SetVectorArray(AVATAR_SHADER_COLOR,
LocalAvatarConfig.MaterialPropertyBlock.Colors);
materialPropertyBlock.SetFloatArray(AVATAR_SHADER_DIFFUSEINTENSITY,
LocalAvatarConfig.MaterialPropertyBlock.DiffuseIntensities);
materialPropertyBlock.SetFloatArray(AVATAR_SHADER_RIMINTENSITY,
LocalAvatarConfig.MaterialPropertyBlock.RimIntensities);
materialPropertyBlock.SetFloatArray(AVATAR_SHADER_REFLECTIONINTENSITY,
LocalAvatarConfig.MaterialPropertyBlock.ReflectionIntensities);
TargetRenderer.GetClosestReflectionProbes(ReflectionProbes);
if (ReflectionProbes != null && ReflectionProbes.Count > 0 && ReflectionProbes[0].probe.texture != null)
{
materialPropertyBlock.SetTexture(AVATAR_SHADER_CUBEMAP, ReflectionProbes[0].probe.texture);
}
for (int i = 0; i < TextureArrays.Length; i++)
{
materialPropertyBlock.SetTexture(TextureTypeToShaderProperties[i],
TextureArrays[(int)(TextureType)i].TextureArray);
}
TargetRenderer.SetPropertyBlock(materialPropertyBlock);
}
// Return a component type based on name
public static ovrAvatarBodyPartType GetComponentType(string objectName)
{
if (objectName.Contains("0"))
{
return ovrAvatarBodyPartType.Body;
}
else if (objectName.Contains("1"))
{
return ovrAvatarBodyPartType.Clothing;
}
else if (objectName.Contains("2"))
{
return ovrAvatarBodyPartType.Eyewear;
}
else if (objectName.Contains("3"))
{
return ovrAvatarBodyPartType.Hair;
}
else if (objectName.Contains("4"))
{
return ovrAvatarBodyPartType.Beard;
}
return ovrAvatarBodyPartType.Count;
}
UInt64 GetTextureIDForType(ovrAvatarPBSMaterialState materialState, TextureType type)
{
if (type == TextureType.DiffuseTextures)
{
return materialState.albedoTextureID;
}
else if (type == TextureType.NormalMaps)
{
return materialState.normalTextureID;
}
else if (type == TextureType.RoughnessMaps)
{
return materialState.metallicnessTextureID;
}
return 0;
}
public void ValidateTextures(ovrAvatarPBSMaterialState[] materialStates)
{
var props = LocalAvatarConfig.ComponentMaterialProperties;
int[] heights = new int[(int)TextureType.Count];
TextureFormat[] formats = new TextureFormat[(int)TextureType.Count];
for (var propIndex = 0; propIndex < props.Length; propIndex++)
{
for (var index = 0; index < props[propIndex].Textures.Length; index++)
{
if (props[propIndex].Textures[index] == null)
{
throw new System.Exception(
props[propIndex].TypeIndex.ToString()
+ "Invalid: "
+ ((TextureType)index).ToString());
}
heights[index] = props[propIndex].Textures[index].height;
formats[index] = props[propIndex].Textures[index].format;
}
}
for (int textureIndex = 0; textureIndex < (int)TextureType.Count; textureIndex++)
{
for (var propIndex = 1; propIndex < props.Length; propIndex++)
{
if (props[propIndex - 1].Textures[textureIndex].height
!= props[propIndex].Textures[textureIndex].height)
{
throw new System.Exception(
props[propIndex].TypeIndex.ToString()
+ " Mismatching Resolutions: "
+ ((TextureType)textureIndex).ToString()
+ " "
+ props[propIndex - 1].Textures[textureIndex].height
+ " (ID: "
+ GetTextureIDForType(materialStates[propIndex - 1], (TextureType)textureIndex)
+ ") vs "
+ props[propIndex].Textures[textureIndex].height
+ " (ID: "
+ GetTextureIDForType(materialStates[propIndex], (TextureType)textureIndex)
+ ") Ensure you are using ASTC texture compression on Android or turn off CombineMeshes");
}
if (props[propIndex - 1].Textures[textureIndex].format
!= props[propIndex].Textures[textureIndex].format)
{
throw new System.Exception(
props[propIndex].TypeIndex.ToString()
+ " Mismatching Formats: "
+ ((TextureType)textureIndex).ToString()
+ " "
+ props[propIndex - 1].Textures[textureIndex].format
+ " (ID: "
+ GetTextureIDForType(materialStates[propIndex - 1], (TextureType)textureIndex)
+ ") vs "
+ props[propIndex].Textures[textureIndex].format
+ " (ID: "
+ GetTextureIDForType(materialStates[propIndex], (TextureType)textureIndex)
+ ") Ensure you are using ASTC texture compression on Android or turn off CombineMeshes");
}
}
}
}
// Loading animation on the Dimmer properyt
// Smooth sine lerp every 0.3 seconds between 0.25 and 0.5
private IEnumerator RunLoadingAnimation(Action callBack)
{
// Set the material to single component while the avatar loads
CombinedShader = TargetRenderer.sharedMaterial.shader;
// Save shader properties
int srcBlend = TargetRenderer.sharedMaterial.GetInt("_SrcBlend");
int dstBlend = TargetRenderer.sharedMaterial.GetInt("_DstBlend");
string lightModeTag = TargetRenderer.sharedMaterial.GetTag("LightMode", false);
string renderTypeTag = TargetRenderer.sharedMaterial.GetTag("RenderType", false);
string renderQueueTag = TargetRenderer.sharedMaterial.GetTag("Queue", false);
string ignoreProjectorTag = TargetRenderer.sharedMaterial.GetTag("IgnoreProjector", false);
int renderQueue = TargetRenderer.sharedMaterial.renderQueue;
bool transparentQueue = TargetRenderer.sharedMaterial.IsKeywordEnabled("_ALPHATEST_ON");
// Swap in loading shader
TargetRenderer.sharedMaterial.shader = Shader.Find(AVATAR_SHADER_LOADER);
TargetRenderer.sharedMaterial.SetColor(AVATAR_SHADER_COLOR, Color.white);
while (OvrAvatarSDKManager.Instance.GetTextureCopyManager().GetTextureCount() > 0)
{
float distance = (LOADING_ANIMATION_AMPLITUDE * Mathf.Sin(Time.timeSinceLevelLoad / LOADING_ANIMATION_PERIOD) +
LOADING_ANIMATION_AMPLITUDE) * (LOADING_ANIMATION_CURVE_SCALE) + LOADING_ANIMATION_DIMMER_MIN;
TargetRenderer.sharedMaterial.SetFloat(AVATAR_SHADER_LOADING_DIMMER, distance);
yield return null;
}
// Swap back main shader
TargetRenderer.sharedMaterial.SetFloat(AVATAR_SHADER_LOADING_DIMMER, 1f);
TargetRenderer.sharedMaterial.shader = CombinedShader;
// Restore shader properties
TargetRenderer.sharedMaterial.SetInt("_SrcBlend", srcBlend);
TargetRenderer.sharedMaterial.SetInt("_DstBlend", dstBlend);
TargetRenderer.sharedMaterial.SetOverrideTag("LightMode", lightModeTag);
TargetRenderer.sharedMaterial.SetOverrideTag("RenderType", renderTypeTag);
TargetRenderer.sharedMaterial.SetOverrideTag("Queue", renderQueueTag);
TargetRenderer.sharedMaterial.SetOverrideTag("IgnoreProjector", ignoreProjectorTag);
if (transparentQueue)
{
TargetRenderer.sharedMaterial.EnableKeyword("_ALPHATEST_ON");
TargetRenderer.sharedMaterial.EnableKeyword("_ALPHABLEND_ON");
TargetRenderer.sharedMaterial.EnableKeyword("_ALPHAPREMULTIPLY_ON");
}
else
{
TargetRenderer.sharedMaterial.DisableKeyword("_ALPHATEST_ON");
TargetRenderer.sharedMaterial.DisableKeyword("_ALPHABLEND_ON");
TargetRenderer.sharedMaterial.DisableKeyword("_ALPHAPREMULTIPLY_ON");
}
TargetRenderer.sharedMaterial.renderQueue = renderQueue;
ApplyMaterialPropertyBlock();
if (callBack != null)
{
callBack();
}
}
}