danielbierwirth

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

/// <summary>
/// Attach this script to an empty gameObject. Create a secondary camera 
/// gameObject for offscreen rendering (not your main camera) and connect it 
/// with this script. Offscreen camera should have a texture object attached to it.  
/// OffscreenCamera texture object is used for rendering (please see camera properties). 
/// </summary> 
public class OffscreenRendering : MonoBehaviour {  	

aras-p

Shader "Custom/OnlyShadowsAndAtten"
{
	SubShader
	{
		Tags { "RenderType"="Opaque" }
		LOD 200

		// Forward rendering base (main directional light) pass.
		Pass
		{

sugi-cho

Shader "Unlit/ViewPortToPos"
{
	Properties
	{
		_MainTex ("Texture", 2D) = "white" {}
		_VP ("viewport position", Vector) = (0.5,0.5,1,0)
	}
	SubShader
	{
		Tags { "RenderType"="Opaque" }

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void vert(inout appdata_full v){
	half4 worldPos = mul(_Object2World, v.vertex);
	half4 viewPos = mul(UNITY_MATRIX_V, worldPos);
	half4 eyePos = mul(UNITY_MATRIX_P, viewPos);
	viewPos = mul(unity_CameraInvProjection, eyePos);
	half4 localPos = mul(viewPos, UNITY_MATRIX_IT_MV);
	v.vertex = localPos;
}

sugi-cho

#UNITY_MATRIX_IT_MVの使い方とか View空間座標から、Object空間座標に変換する。
float4 objectSpacePos = mul(viewSpacePos, UNITY_MATRIX_IT_MV);

Projection空間座標から、View空間座標に変換 これは違った！！
float4 viewSpacePos = mul(eyeSpacePos, UNITY_MATRIX_P);