This a jelly shader from unity asset store yet I cant figure out how to make it always active as it requires 2 vector3 (_ModelOrigin and a __ImpactOrigin). Any ideas on how to edit it is always active?
Thats how I use it right now :
modelRenderer.material.SetVector("_ModelOrigin", pos.transform.position);
modelRenderer.material.SetVector("_ImpactOrigin", pos.transform.position += new Vector3(0.001f, 0.001f, 0.001f));
but when the gameobject mesh is too far it stops working
I tried also to just use transform.position but when I move the gameobject the shader get new values so it becomes laggy for a second
Thanks
// Upgrade NOTE: upgraded instancing buffer 'Props' to new syntax.
Shader "Custom/JellyShader" {
Properties{
_Color("Color", Color) = (1,1,1,1)
_MainTex("Albedo (RGB)", 2D) = "white" {}
_Glossiness("Smoothness", Range(0,1)) = 0.5
_Metallic("Metallic", Range(0,1)) = 0.0
_Transparency("Transparency", float) = 0.1
_ControlTime("Time", float) = 0
_ModelOrigin("Model Origin", Vector) = (0,0,0,0)
_ImpactOrigin("Impact Origin", Vector) = (-5,0,0,0)
_Emission("Emission", float) = 0
[HDR] _EmissionColor("Color", Color) = (0,0,0)
_Frequency("Frequency", Range(0, 1000)) = 10
_Amplitude("Amplitude", Range(0, 5)) = 0.1
_WaveFalloff("Wave Falloff", Range(1, 8)) = 4
_MaxWaveDistortion("Max Wave Distortion", Range(0.1, 2.0)) = 1
_ImpactSpeed("Impact Speed", Range(0, 10)) = 0.5
_WaveSpeed("Wave Speed", Range(-10, 10)) = -5
}
SubShader{
Tags { "Queue" = "Transparent" "RenderType" = "Transparent" }
LOD 200
CGPROGRAM
// Physically based Standard lighting model, and enable shadows on all light types
#pragma surface surf Standard fullforwardshadows addshadow vertex:vert alpha:fade
// Use shader model 3.0 target, to get nicer looking lighting
#pragma target 3.0
sampler2D _MainTex;
struct Input {
float2 uv_MainTex;
};
half _Glossiness;
half _Metallic;
fixed4 _Color;
fixed4 _EmissionColor;
float _ControlTime;
float4 _ModelOrigin;
float4 _ImpactOrigin;
float _Transparency;
half _Frequency; //Base frequency for our waves.
half _Amplitude; //Base amplitude for our waves.
half _WaveFalloff; //How quickly our distortion should fall off given distance.
half _MaxWaveDistortion; //Smaller number here will lead to larger distortion as the vertex approaches origin.
half _ImpactSpeed; //How quickly our wave origin moves across the sphere.
half _WaveSpeed; //Oscillation speed of an individual wave.
// Add instancing support for this shader. You need to check 'Enable Instancing' on materials that use the shader.
// See https://docs.unity3d.com/Manual/GPUInstancing.html for more information about instancing.
// #pragma instancing_options assumeuniformscaling
UNITY_INSTANCING_BUFFER_START(Props)
// put more per-instance properties here
UNITY_INSTANCING_BUFFER_END(Props)
void vert(inout appdata_base v) {
float4 world_space_vertex = mul(unity_ObjectToWorld, v.vertex);
float4 direction = normalize(_ModelOrigin - _ImpactOrigin);
float4 origin = _ImpactOrigin + _ControlTime * _ImpactSpeed * direction;
//Get the distance in world space from our vertex to the wave origin.
float dist = distance(world_space_vertex, origin);
//Adjust our distance to be non-linear.
dist = pow(dist, _WaveFalloff);
//Set the max amount a wave can be distorted based on distance.
dist = max(dist, _MaxWaveDistortion);
//Convert direction and _ImpactOrigin to model space for later trig magic.
float4 l_ImpactOrigin = mul(unity_WorldToObject, _ImpactOrigin);
float4 l_direction = mul(unity_WorldToObject, direction);
//Magic
float impactAxis = l_ImpactOrigin + dot((v.vertex - l_ImpactOrigin), l_direction);
v.vertex.xyz += v.normal * sin(impactAxis * _Frequency + _ControlTime * _WaveSpeed) * _Amplitude * (1 / dist);
}
void surf(Input IN, inout SurfaceOutputStandard o) {
// Albedo comes from a texture tinted by color
fixed4 c = tex2D(_MainTex, IN.uv_MainTex) * _Color;
o.Albedo = c.rgb;
// Metallic and smoothness come from slider variables
o.Metallic = _Metallic;
o.Smoothness = _Glossiness;
o.Alpha = c.a;
o.Emission = c.rgb * tex2D(_MainTex, IN.uv_MainTex).a * _EmissionColor;
o.Smoothness = _Glossiness;
}
ENDCG
}
FallBack "Diffuse"
}
Simplest solution is to just remove them as properties and calculate the model pos based on the object to world transform and then use your offset to set the impact origin.
That way you don't need to set those parameters in c#, it should "just work".
// Upgrade NOTE: upgraded instancing buffer 'Props' to new syntax.
Shader "Custom/JellyShader" {
Properties{
_Color("Color", Color) = (1,1,1,1)
_MainTex("Albedo (RGB)", 2D) = "white" {}
_Glossiness("Smoothness", Range(0,1)) = 0.5
_Metallic("Metallic", Range(0,1)) = 0.0
_Transparency("Transparency", float) = 0.1
_ControlTime("Time", float) = 0
_Emission("Emission", float) = 0
[HDR] _EmissionColor("Color", Color) = (0,0,0)
_Frequency("Frequency", Range(0, 1000)) = 10
_Amplitude("Amplitude", Range(0, 5)) = 0.1
_WaveFalloff("Wave Falloff", Range(1, 8)) = 4
_MaxWaveDistortion("Max Wave Distortion", Range(0.1, 2.0)) = 1
_ImpactSpeed("Impact Speed", Range(0, 10)) = 0.5
_WaveSpeed("Wave Speed", Range(-10, 10)) = -5
}
SubShader{
Tags { "Queue" = "Transparent" "RenderType" = "Transparent" }
LOD 200
CGPROGRAM
// Physically based Standard lighting model, and enable shadows on all light types
#pragma surface surf Standard fullforwardshadows addshadow vertex:vert alpha:fade
// Use shader model 3.0 target, to get nicer looking lighting
#pragma target 3.0
sampler2D _MainTex;
struct Input {
float2 uv_MainTex;
};
half _Glossiness;
half _Metallic;
fixed4 _Color;
fixed4 _EmissionColor;
float _ControlTime;
float _Transparency;
half _Frequency; //Base frequency for our waves.
half _Amplitude; //Base amplitude for our waves.
half _WaveFalloff; //How quickly our distortion should fall off given distance.
half _MaxWaveDistortion; //Smaller number here will lead to larger distortion as the vertex approaches origin.
half _ImpactSpeed; //How quickly our wave origin moves across the sphere.
half _WaveSpeed; //Oscillation speed of an individual wave.
// Add instancing support for this shader. You need to check 'Enable Instancing' on materials that use the shader.
// See https://docs.unity3d.com/Manual/GPUInstancing.html for more information about instancing.
// #pragma instancing_options assumeuniformscaling
UNITY_INSTANCING_BUFFER_START(Props)
// put more per-instance properties here
UNITY_INSTANCING_BUFFER_END(Props)
void vert(inout appdata_base v) {
float4 world_space_vertex = mul(unity_ObjectToWorld, v.vertex);
// hardcoded stuff:
float4 _ModelOrigin = mul(unity_ObjectToWorld, float4(0,0,0,1));
float4 _ImpactOffset = float4(0.001, 0.001, 0.001, 0);
float4 _ImpactOrigin = _ModelOrigin + _ImpactOffset;
float4 direction = normalize(_ModelOrigin - _ImpactOrigin);
float4 origin = _ImpactOrigin + _ControlTime * _ImpactSpeed * direction;
//Get the distance in world space from our vertex to the wave origin.
float dist = distance(world_space_vertex, origin);
//Adjust our distance to be non-linear.
dist = pow(dist, _WaveFalloff);
//Set the max amount a wave can be distorted based on distance.
dist = max(dist, _MaxWaveDistortion);
//Convert direction and _ImpactOrigin to model space for later trig magic.
float4 l_ImpactOrigin = mul(unity_WorldToObject, _ImpactOrigin);
float4 l_direction = mul(unity_WorldToObject, direction);
//Magic
float impactAxis = l_ImpactOrigin + dot((v.vertex - l_ImpactOrigin), l_direction);
v.vertex.xyz += v.normal * sin(impactAxis * _Frequency + _ControlTime * _WaveSpeed) * _Amplitude * (1 / dist);
}
void surf(Input IN, inout SurfaceOutputStandard o) {
// Albedo comes from a texture tinted by color
fixed4 c = tex2D(_MainTex, IN.uv_MainTex) * _Color;
o.Albedo = c.rgb;
// Metallic and smoothness come from slider variables
o.Metallic = _Metallic;
o.Smoothness = _Glossiness;
o.Alpha = c.a;
o.Emission = c.rgb * tex2D(_MainTex, IN.uv_MainTex).a * _EmissionColor;
o.Smoothness = _Glossiness;
}
ENDCG
}
FallBack "Diffuse"
}
Note: Please let me know if this has any syntax errors; it has been a minute since I've done shader code.
I'm trying to make a game with periodic boundary conditions (so basically if you are on the right edge of the map, and you look right, you should see the whole map again).
I made a geometry shader which takes one triangle and outputs the 27 triangles i need (3*3*3 periodic box), and it works perfectly while the base object is on the screen. As soon as the base object leaves the screen all the copies disappear too.
So i think unity does not even call my shaders on the vertices which is behind my camera (which is totally fine for optimization), but with my current solution i need a call on every object of the game.
Is it possible to force unity not to discard any objects before rendering, or should i look for a different solution? If i have to do something else, do you have any ideas?
Here's my current code. (I'm new with shaders, so it might be stupid...)
Shader "Unlit/Geom_shader"
{
Properties
{
_MainTex ("Texture", 2D) = "white" {}
}
SubShader
{
Tags { "RenderType"="Opaque" }
LOD 100
Pass
{
CGPROGRAM
#pragma vertex vert
#pragma geometry geom
#pragma fragment frag
#include "UnityCG.cginc"
struct appdata {
float4 vertex : POSITION;
float3 normal : NORMAL;
float2 uv : TEXCOORD0;
};
struct v2g {
float4 vertex : SV_POSITION;
float2 uv : TEXCOORD0;
};
struct g2f {
float4 vertex : SV_POSITION;
float2 uv : TEXCOORD0;
};
sampler2D _MainTex;
float4 _MainTex_ST;
v2g vert (appdata v)
{
v2g o;
o.vertex = v.vertex;
o.uv = v.uv;
return o;
}
[maxvertexcount(3*3*3*3)]
void geom(triangle v2g input[3], inout TriangleStream<g2f> tristream) {
g2f o = (g2f)0;
for (int x = 0; x < 3; x++)
{
float x_shift = (x - 1) * 2*_SinTime[2];
for (int y = 0; y < 3; y++)
{
float y_shift = (y - 1) * 2 * _SinTime[2];
for (int z = 0; z < 3; z++)
{
float z_shift = (z - 1) * 2 * _CosTime[2];
for (int i = 0; i < 3; i++)
{
o.vertex = UnityObjectToClipPos(input[i].vertex + float4(x_shift, y_shift, z_shift, 0));
o.uv = TRANSFORM_TEX(input[i].uv, _MainTex);
tristream.Append(o);
}
tristream.RestartStrip();
}
}
}
}
fixed4 frag (g2f i) : SV_Target
{
fixed4 col = tex2D(_MainTex, i.uv);
return col;
}
ENDCG
}
}
}
I'm not trying to use it for lights but for whole objects and i'm sure they are handled differently. So the reason why it is happening is the same, but the solution must be different. (Why it's not a duplicate of: Unity3D - Light deactivated when facing opposite direction )
It's not the vertices being discarded, it's the entire mesh being culled as a whole.
Unity implements View Frustum Culling based on the bounding box of your mesh. You can change the bounding box of a mesh manually by assigning a new value to Mesh.bounds.
So I have this shader that I am trying to make flicker, so I am making the emission value go back and forth between 0 and 1, but it only works if I click on the material or scroll in the editor. I can't figure this out, help please?
I checked something similar to this, but it still won't work, so please help.
Renderer renderer;
Material material;
float emission;
// Use this for initialization
void Start () {
renderer = GetComponent<Renderer>();
material = renderer.material;
}
// Update is called once per frame
void Update () {
emission = Mathf.PingPong (Time.time, 1f);
Color color = Color.red;
Color finalColor = color * Mathf.LinearToGammaSpace (emission);
material.SetColor ("_EmissionColor", finalColor);
}
i solved a problem like you
pleas share your Shader to us thanks
try Mathf.sin(Time.time) to get pingpong maybe your problem Solved
or
use blow shader
Shader "Custom/Emition" {
Properties {
_MainTex ("Albedo (RGB)", 2D) = "white" {}
_EmissionColor ("Bright", Float) = 1.0
}
SubShader {
Tags { "RenderType"="Opaque" }
LOD 200
pass {
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
#include "UnityCG.cginc"
uniform float _EmissionColor;
sampler2D _MainTex;
struct vertexInput {
float4 vertex : POSITION;
float2 texcoord : TEXCOORD0;
};
struct vertexOutput {
float4 pos : SV_POSITION;
float2 uv : TEXCOORD0;
};
vertexOutput vert(vertexInput input)
{
vertexOutput output;
output.pos = mul(UNITY_MATRIX_MVP, input.vertex);
output.uv = input.texcoord;
return output;
}
float4 frag(vertexOutput input) : COLOR
{
fixed4 c = tex2D (_MainTex , input.uv) ;
/// change blow line
return c* float4(_EmissionColor,1,1,1);
}
ENDCG
}
}
FallBack "Diffuse"
}
I have a really big problem that has been bothering me for so long and I can't seem to find the solution. I have downloaded this project https://github.com/brianasu/unity-ray-marching/tree/volumetric-textures (Unitypackage with my project here https://dl.dropboxusercontent.com/u/27758186/ApplicationVolume.unitypackage ) , that is about volume rendering.
The problem is that, as you can see, the volume renders ALWAYS in front of everything else (try placing a cube in front of the cube with the volume). I have tried a lot of things but none seems to work.
I think it might be an issue of the shaders used. In the main Camera, a RayMarching script is attached, which contains an OnRenderImage method, which creates a new Camera (although disabled), and renders the volume.
I don't know if it is a shader issue, then, or more like a camera issue (is rendering with replaced shaders). I attach my current project for testing so you don't have to download from git, and I just want the volume (head), to appear behind the rectangles (not seen) when it's actually behind, and in front when it is, pretty much like an standard geometry, but it appears always on top...
Any help or suggestion would be GREATLY appreciated, I'm kind of desperate as anything works and I'm pretty sure it is a fairly easy issue.
The code of the shader of the Ray Marching is as follows. Should it do some kind of ZTesting to not show the fragments that are covered by any other object?
Shader "Hidden/Ray Marching/Ray Marching"
{
CGINCLUDE
#include "UnityCG.cginc"
#pragma target 3.0
#pragma profileoption MaxLocalParams=1024
#pragma profileoption NumInstructionSlots=4096
#pragma profileoption NumMathInstructionSlots=4096
struct v2f {
float4 pos : POSITION;
float2 uv[2] : TEXCOORD0;
};
sampler3D _VolumeTex;
float4 _VolumeTex_TexelSize;
sampler2D _FrontTex;
sampler2D _BackTex;
float4 _LightDir;
float4 _LightPos;
float _Dimensions;
float _Opacity;
float4 _ClipDims;
float4 _ClipPlane;
v2f vert( appdata_img v )
{
v2f o;
o.pos = mul(UNITY_MATRIX_MVP, v.vertex);
o.uv[0] = v.texcoord.xy;
o.uv[1] = v.texcoord.xy;
#if SHADER_API_D3D9
if (_MainTex_TexelSize.y < 0)
o.uv[0].y = 1-o.uv[0].y;
#endif
return o;
}
#define TOTAL_STEPS 128.0
#define STEP_CNT 128
#define STEP_SIZE 1 / 128.0
half4 raymarch(v2f i, float offset)
{
float3 frontPos = tex2D(_FrontTex, i.uv[1]).xyz;
float3 backPos = tex2D(_BackTex, i.uv[1]).xyz;
float3 dir = backPos - frontPos;
float3 pos = frontPos;
float4 dst = 0;
float3 stepDist = dir * STEP_SIZE;
for(int k = 0; k < STEP_CNT; k++)
{
float4 src = tex3D(_VolumeTex, pos);
// clipping
float border = step(1 - _ClipDims.x, pos.x);
border *= step(pos.y, _ClipDims.y);
border *= step(pos.z, _ClipDims.z);
border *= step(0, dot(_ClipPlane, float4(pos - 0.5, 1)) + _ClipPlane.w);
// Standard blending
src.a *= saturate(_Opacity * border);
src.rgb *= src.a;
dst = (1.0f - dst.a) * src + dst;
pos += stepDist;
}
return 3.0F*dst;// + dst;
}
ENDCG
Subshader {
Fog { Mode off }
Pass
{
CGPROGRAM
#pragma vertex vert
#pragma fragment frag
half4 frag(v2f i) : COLOR {
return raymarch(i, 0);
}
ENDCG
}
}
Fallback off
} // shader
I'm currently using shaders in my game, it's working fine with a nVidia GeForceGT330m but with an ATI 4670 (which supports ps_4.1) I encounter a black screen.
Here is the source of the HLSL effect:
struct Explo
{
float3 position;
float4 color;
float power;
int time;
};
float2 DisplacementScroll;
texture colortexture;
int nb;
Explo explos[5];
float ambient;
float4 ambientColor;
float screenWidth;
float screenHeight;
sampler ColorMap = sampler_state
{
Texture = <colortexture>;
};
float4 CalculateLight(Explo ex, float4 base, float3 pixelPosition)
{
float3 direction = ex.position - pixelPosition;
float distance = 1 / length(ex.position - pixelPosition) * ex.power;
float amount = max(dot(base, normalize(distance)), 0);
return base * distance * amount * ex.color * ambient;
}
float4 Explosion(float2 texCoords : TEXCOORD0) : COLOR
{
//texCoords = tex2D(NormalMap, DisplacementScroll + texCoords / 3)*0.2 - 0.15;
float4 base = tex2D(ColorMap, texCoords);
float3 pixelPosition = float3(screenWidth * (texCoords.x),
screenHeight * (texCoords.y),0);
float4 finalColor = (base * ambientColor * ambient);
for (int i=0; i<nb; i++)
{
finalColor += CalculateLight(explos[i], base, pixelPosition);
}
return finalColor;
}
technique KaBoom
{
pass Pass1
{
PixelShader = compile ps_3_0 Explosion();
}
}
I remember once I had a similar problem. A shader just didn't work on ATI. The problem was that the vertex and pixel shaders were compiled to different shader models (vs_3_0 and ps_2_0). It worked for NVIDIA, but not for ATI. In your case you're only binding a pixel shader for the pass and who knows what the last vertex shader was.
Granted, this is relevant only if you're dead sure the problem is with the shader and not something else, e.g. your DIPs.
Good luck