Question by
nitzanwilnai · Oct 04, 2018 at 07:19 AM ·
shadersmaterialstextures
material.SetTexture not working for mainTexture, works for others
I am running into a weird issue where, if I try to set my main texture to a new texture, it does not change. If I set a secondary texture, it does change.
The code setting the textures for the shader:
spriteRenderer.material.SetTexture("_SecondaryTexture", fishTexture); // <- changes texture
spriteRenderer.material.SetTexture("_MainTex", fishTexture); // <- texture does not change!
_SecondaryTexture changes correctly.
_MainTex remains the same.
The shader code:
Shader "Unlit/TestShader"
{
Properties
{
// we have removed support for texture tiling/offset,
// so make them not be displayed in material inspector
[NoScaleOffset] _MainTex ("Texture", 2D) = "white" {}
[NoScaleOffset] _SecondaryTexture ("Texture", 2D) = "white" {}
}
SubShader
{
Tags {"Queue"="Transparent" "IgnoreProjector"="True" "RenderType"="Transparent"}
LOD 100
ZWrite Off
Cull Off
Blend SrcAlpha OneMinusSrcAlpha
Pass
{
CGPROGRAM
// use "vert" function as the vertex shader
#pragma vertex vert
// use "frag" function as the pixel (fragment) shader
#pragma fragment frag
#include "UnityCG.cginc"
// vertex shader inputs
struct appdata
{
float4 vertex : POSITION; // vertex position
float2 texcoord : TEXCOORD0; // texture coordinate
};
// vertex shader outputs ("vertex to fragment")
struct v2f
{
float4 vertex : SV_POSITION; // clip space position
half2 texcoord : TEXCOORD0; // texture coordinate
};
// texture we will sample
sampler2D _MainTex;
sampler2D _SecondaryTexture;
float4 _MainTex_ST;
float4 _MainTex_TexelSize;
float4 _SecondaryTexture_ST;
float4 _SecondaryTexture_TexelSize;
// vertex shader
v2f vert (appdata v)
{
v2f o;
o.vertex = UnityObjectToClipPos(v.vertex);
o.texcoord = TRANSFORM_TEX(v.texcoord, _MainTex);
return o;
}
// pixel shader; returns low precision ("fixed4" type)
// color ("SV_Target" semantic)
fixed4 frag (v2f pix) : SV_Target
{
// sample texture and return it
fixed4 col = tex2D(_MainTex, pix.texcoord);
//fixed4 col = tex2D(_SecondaryTexture, pix.texcoord);
return col;
}
ENDCG
}
}
}
Anyone have any ideas why I cannot set the main texture?
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