instancing breaks when scaled non uniformly
there might be other cases i don’t know where it breaks
how do i see which objects render using instancing?
You can use the frame debugger. Instanced draw calls are labeled as such.
Thanks, that’s when a search field would help a lot.
From combing through the frame debugger I was surprised to find that almost none of the objects were instantiated.
Is there a way to know why instanciation broke?
Example of object, attached shader.
Shader "SG/SG Cutout Grass" {
Properties {
_Color ("Color",Color) = (1,1,1,1)
_MainTex ("Texture", 2D) = "white" {}
_RimColor ("Rim Color", Color) = (0.26,0.19,0.16,0.0)
_RimPower ("Rim Power", Range(0.5,8.0)) = 3.0
_Cutoff ("Cutoff",range(0,1)) = 0.5
_WaveAndDistance ("Wave Speed", Vector) = (1,1,1,1)
}
SubShader {
Tags {"Queue"="AlphaTest" "IgnoreProjector"="True" "RenderType"="TransparentCutout"}
LOD 200
CGPROGRAM
#pragma surface surf WrapLambert alphatest:_Cutoff vertex:vert addshadow fullforwardshadows
#pragma target 3.0
float4 _WaveAndDistance;
#include "SGWaves.cginc"
sampler2D _MainTex;
fixed4 _Color;
float4 _RimColor;
float _RimPower;
struct Input {
float2 uv_MainTex;
float3 viewDir;
float4 vertexColor;
};
half4 LightingWrapLambert (SurfaceOutput s, half3 lightDir, half atten) {
half NdotL = dot (s.Normal, lightDir);
half diff = NdotL * 0.5 + 0.5;
half4 c;
atten = atten * s.Alpha;
c.rgb = s.Albedo * _LightColor0.rgb * (diff * atten * 1.5);
c.a = s.Alpha;
return c;
}
void vert (inout appdata_full v, out Input o) {
UNITY_INITIALIZE_OUTPUT(Input,o);
o.vertexColor = v.color;
WorldWaveGrass(v, v.texcoord.y);
}
void surf (Input IN, inout SurfaceOutput o) {
half4 c = tex2D(_MainTex, IN.uv_MainTex) * _Color;
c *= _Color;
c *= IN.vertexColor;
o.Albedo = c.rgb;
o.Alpha = c.a;
half rim = 1.0 - saturate(dot (normalize(IN.viewDir), o.Normal));
o.Emission = _RimColor.rgb * pow (rim, _RimPower);
}
ENDCG
}
Fallback "VertexLit"
}
// Upgrade NOTE: unity_Scale shader variable was removed; replaced 'unity_Scale.w' with '1.0'
// Upgrade NOTE: replaced '_Object2World' with 'unity_ObjectToWorld'
// Upgrade NOTE: replaced '_World2Object' with 'unity_WorldToObject'
// WAVE STUFF - Nabbed from Terrain.cginc and modified - FM 06/2014
void FastSinCos (float4 val, out float4 s, out float4 c) {
val = val * 6.408849 - 3.1415927;
// powers for taylor series
float4 r5 = val * val; // wavevec ^ 2
float4 r6 = r5 * r5; // wavevec ^ 4;
float4 r7 = r6 * r5; // wavevec ^ 6;
float4 r8 = r6 * r5; // wavevec ^ 8;
float4 r1 = r5 * val; // wavevec ^ 3
float4 r2 = r1 * r5; // wavevec ^ 5;
float4 r3 = r2 * r5; // wavevec ^ 7;
//Vectors for taylor's series expansion of sin and cos
float4 sin7 = {1, -0.16161616, 0.0083333, -0.00019841};
float4 cos8 = {-0.5, 0.041666666, -0.0013888889, 0.000024801587};
// sin
s = val + r1 * sin7.y + r2 * sin7.z + r3 * sin7.w;
// cos
c = 1 + r5 * cos8.x + r6 * cos8.y + r7 * cos8.z + r8 * cos8.w;
}
float3 WaveGrass (float waveAmount, float3 vertex)
{
float4 _waveXSize = float4(0.012, 0.02, 0.06, 0.024) * _WaveAndDistance.y;
float4 _waveZSize = float4 (0.006, .02, 0.02, 0.05) * _WaveAndDistance.y;
float4 waveSpeed = float4 (0.3, .5, .4, 1.2) * 4;
float4 _waveXmove = float4(0.012, 0.02, -0.06, 0.048) * 2;
float4 _waveZmove = float4 (0.006, .02, -0.02, 0.1);
float4 waves;
waves = vertex.x * _waveXSize;
waves += vertex.z * _waveZSize;
// Add in time to model them over time
// also add in their world z/x so as to stagger the waves slightly
//waves += _Time[0]*(_WaveAndDistance.x+(vertex.z+vertex.x)*0.01) * waveSpeed;
waves += _Time[0]*_WaveAndDistance.x*waveSpeed;
float4 s, c;
waves = frac (waves);
FastSinCos (waves, s,c);
s = s * s;
s = s * s;
s = s * waveAmount;
float3 waveMove = float3 (0,0,0);
waveMove.x = dot (s, _waveXmove);
waveMove.z = dot (s, _waveZmove);
return waveMove * _WaveAndDistance.w;
}
void WorldWaveGrass(inout appdata_full v, float waveAmount){
// calculate wave motion based on world pos
float3 pos = mul ((float3x3)unity_ObjectToWorld, v.vertex.xyz);
float3 move = WaveGrass ( _WaveAndDistance.z*waveAmount, pos) ;
pos = pos + move;
v.vertex.xyz = mul ((float3x3)(unity_WorldToObject*1.0), pos);
// end wave motion
}
Blend Probes
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