Erkaman

#include <math.h>
#include <string.h>
#include <stdio.h>
#include <inttypes.h>

int main()
{
	{
		float f = sqrtf(-1); // this results in f being set to nan. 
		

Erkaman

Shader "Custom/CustomTriLerp"
{
    Properties
    {
        [NoScaleOffset] _MainTex("Texture", 2D) = "white" {}
    }
    SubShader
    {
        Pass
        {

unitycoder

UNITY_MATRIX_IT_MV[0].xyz = ???
UNITY_MATRIX_IT_MV[1].xyz = Camera Up
UNITY_MATRIX_IT_MV[2].xyz = Camera Forward

float3 forward = -normalize(UNITY_MATRIX_V._m20_m21_m22);
float3 up = normalize(UNITY_MATRIX_V._m10_m11_m12);
float3 right = normalize(UNITY_MATRIX_V._m00_m01_m02);

float3 cameraUp = unity_CameraInvProjection[1].xyz;
float3 camRight = cross(unity_CameraInvProjection[2].xyz, cameraUp);