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You may want to use this plugin because it can play many video codecs including HAP. Unity video player is limited. This tutorial assumes you are making a simple video player, no lighting or 3D effects.
In Unity
Choose Window->Asset Store
Type AVPro Video (Windows) in the search bar, Select the one that is $150
Pay and download
The AVProVideo folder and the Plugins folder need to be in your Unity project Assets folder.
You can copy these between projects.
A SteamingAssets folder was created by AVPro, in your Assets folder. Put your movies here.
Basic Scene Setup for a video player on a 3D object, no lighting
Switch out of the Asset Store to the main Scene tab
Save your scene as a new name. This is a scene within the project.
For efficiency you can delete the default Directional Light in the Hierarchy tab
Select the Main Camera
Notice the Main Camera's default Position is 0, 1, -10 x,y,z, Field of View 60
Clear Flags change Skybox to Solid Color
Change the Background color to black
Uncheck Occlusion Culling
Uncheck Allow HDR
Uncheck Allow MSAA
Uncheck Audio Listener (unless you have audio)
Choose Edit->Project Settings->Quality
Trash all the Levels except Low (Video does not need high)
All the other defaults for Low should be good.
Texture quality full res probably important
Choose Window->Rendering->Lighting Settings
Skybox Material, Select the  button and choose None
Environmental Lighting, select Source Color
Change the Ambient Color to black
Environmental Reflections change Source to Custom
Uncheck Realtime Global Illumination
Uncheck Baked Global Illumination
Add a Media Player Object to your Hierarchy tab
Select GameObject->AVpro->Media Player
In the Inspector on the right:
Click Browse to add your movie (located in your StreamingAssets folder)
Select Playback Loop
Under the Platform Specific button
Select Windows
Select Preferred Video API choose Direct Show
FYI defaults were:
Auto Open checked
Auto Play checked
Loop unchecked (we changed)
Playback Rate 1
Persistent unchecked
Force File Format Automatic (by extension)
Filter Bilinear
Wrap Clamp
Aniso 0
Vido Mapping Unknown
Transparency Packing None
Audio Packing None
Resampler unchecked
Windows Preferred Video API Media Foundation (we changed)
Generate Texture Mips unchecked
Media Foundation Options
Hardware Decoding checked
Use Low Latency unchecked
Audio Mode System Direct
DirectShow Options
Alpha Channel Hint unchecked
Force Audio Output Device Name none listed
Preferred Filters Size 0
IMGUI Script
This will let you play video on top of the scene.
Select MediaPlayer from the Hierarchy
Choose Add Component from the Inspector
Type displ in the search, Select Display IMGUI Script
Display IMGUI options:
Media Player select the button and choose MediaPlayer
Display in Editor checked (uncheck turns off the pink wallpaper)
Scale Mode is Scale to Fit
Color white (any other color tints or fades the video)
Alpha Blend unchecked
Use Depth unchecked
Depth 0
Full Screen unchecked (checked by default)
X 0
Y 0
Width 1
Height 1
Hit the Play arrow to check if everything is working.
Publish a Player
Save your Unity Scene
File->Build Settings...
Click Player Settings... button
Open Resolution and Presentation
Uncheck Default is Native Resolution
Input your resolution if you want to control this.
Change Display Resolution Dialog to Hidden by Default
Open Splash Image
Change the Background Color to black
Select Build
Click New folder, make a new player folder on your desktop
Select the folder, it will take a minute to build.
Doubleclick the player.exe
Alt + F4 to quit the player
(If you have problems with the build, uncheck any scenes listed unScenes in Build)
Add a script to hide the mouse cursor and add an Escape button
Select the Main Camera
Select the Add Component button
Scroll down to New script
Type a name: hide_cursor_escape
Double click the C# script in your Assets folder
Add this script:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class hide_cursor_escape : MonoBehaviour {
// Use this for initialization
void Start () {
Cursor.visible = false;
}
// Update is called once per frame
void Update () {
if (Input.GetKeyDown(KeyCode.Escape)) {
Application.Quit();
}
}
}
Republish your player
Add a text overlay that fades
Select GameObject->UI->Text
Type something in the Text field in the Inspector
Input Pos X and Pos Y to 0
Move the Text around with the Move Tool
Add this textController script to the text, under Canvas:
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.EventSystems;
using System.Collections;
public class textController : MonoBehaviour
{
private IEnumerator fadeCoroutine;
// Use this for initialization
void Start()
{
// title text: invisible at first!
Text text = GetComponent<Text>();
text.color = new Color(1f, 1f, 1f, 1f);
this.fadeCoroutine = FadeTo(0.0f, 6f, 0.25f);
StartCoroutine(this.fadeCoroutine);
}
/* Coroutine for animating the opacity of title text when a new movie is selected.
* aTime is how long the title is visible before fade begins
* aFadeTime is how long the title takes to disappear */
IEnumerator FadeTo(float aValue, float aTime, float aFadeTime)
{
for (float t = 0.0f; t < 1.0f; t += Time.deltaTime / aTime)
{
yield return null;
}
Text text = GetComponent<Text>();
float alpha = text.color.a;
for (float t = 0.0f; t < 1.0f; t += Time.deltaTime / aFadeTime)
{
Color newColor = new Color(1, 1, 1, Mathf.Lerp(alpha, aValue, t));
text.color = newColor;
yield return null;
}
// just make sure it doesn't stick around at end of loop;
// goes completely invisible.
Color finalColor = new Color(1, 1, 1, aValue);
text.color = finalColor;
Destroy(this.transform.parent.gameObject);
}
}
Script to switch movies
Add this switch_art script to the MediaPlayer
using UnityEngine;
using System;
using System.IO;
using RenderHeads.Media.AVProVideo;
public class switch_art : MonoBehaviour
{
[SerializeField]
private MediaPlayer _mediaPlayer;
public void LoadVideo(string filePath)
{
_mediaPlayer.OpenVideoFromFile(MediaPlayer.FileLocation.RelativeToStreamingAssetsFolder, filePath, true);
}
[Tooltip("Relative to StreamingAssets movie file 1.")]
public string movie1File;
[Tooltip("Relative to StreamingAssets movie file 2.")]
public string movie2File;
// Update is called once per frame
void Update()
{
if (Input.GetKeyDown(KeyCode.Alpha1))
{
_mediaPlayer.CloseVideo();
_mediaPlayer.OpenVideoFromFile(MediaPlayer.FileLocation.RelativeToStreamingAssetsFolder, movie1File);
}
if (Input.GetKeyDown(KeyCode.Alpha2))
{
_mediaPlayer.CloseVideo();
_mediaPlayer.OpenVideoFromFile(MediaPlayer.FileLocation.RelativeToStreamingAssetsFolder, movie2File);
}
}
}
Add Video to a 3D Object
Choose GameObject->3D Object Quad
Position the Quad at 0, 1, -9.134 x,y,z
Scale X to match your aspect ratio, ie 1920x1200 = 1.6
Under Mesh Renderer
Light Probes Off
Reflection Probes Off
Cast Shadows Off
Uncheck Receive Shadows
Uncheck Dynamic Occluded
Open Materials (kind of hidden)
Element 0 button and choose VideoMappingMaterial
Change the Shader for the VideomappingMaterial to AVProVideo/Unlit/Opaque
Turn off Mesh Collider
Choose the MediaPlayer object from the Hierarchy tab
Choose the Add Component button
Choose AVPro Video->Apply to Mesh
Within the Apply to Mesh section:
Media button and choose MediaPlayer
Mesh button and choose Quad
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