Material dynamic self illumination

Dynamically modify the material self illumination

1. Create a new scene , Turn off the directional light ; Purpose ： Self illumination is more obvious
2. establish 2 A cube ;
3. Create a material ;
4. The material is assigned to the two new cubes ;
5. Two cube mount scripts .

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class TestEmssion : MonoBehaviour
{
    
    MaterialPropertyBlock block;
    Renderer render;
    private void Start()
    {
    
        block = new MaterialPropertyBlock();
        render = GetComponent<Renderer>();
    }
    private void OnMouseEnter()// Mouse migration   Impactor trigger 
    {
    
        render.GetPropertyBlock(block);
        render.material.EnableKeyword("_EMISSION");// Turn on self illumination 
        block.SetColor("_EmissionColor", Color.blue);// Set the color 
        render.SetPropertyBlock(block);
    }
    private void OnMouseExit()// Mouse removal   Impactor trigger 
    {
    
        render.GetPropertyBlock(block);    
        block.SetColor("_EmissionColor", Color.blue);// Set the color 
        render.material.DisableKeyword("_EMISSION");// Turn off highlights 
        render.SetPropertyBlock(block);
    }
}

Existing problems

In edit mode , It has a highlight effect . After the release of , No highlights .

resolvent

1. Material check Emssion;
2. Global Illumination Set to Realtime perhaps None that will do

reason

Global Illumination： Specifies how the light emitted by this material affects the ambient lighting of other nearby game objects .

1. Realtime：Unity Set the... Of this material ⾃ Glow added to the scene Realtime Global Illumination（ Real time global illumination ） In calculation . It means that ⾃ Lighting affects nearby GameObjects （ Including moving GameObjects ） The light of the sun .
2. Baked：Unity Set the... Of this material ⾃ Glow is baked into the static global illumination of the scene . This material affects the lighting of nearby static GameObjects , But it does not affect the lighting of dynamic game objects . however , The illumination probe still affects the illumination of the dynamic GameObject .
3. None： Of this material ⾃ Illumination does not affect real-time lightmaps in the scene 、 Bake lightmaps or lightprobes . this ⾃ Glow does not illuminate or affect other GameObjects .