"Texture Type to " Default " it can't imported to the scene" should be default when importing. what is it set to for your texture?
"Texture Type to " Default " it can't imported to the scene" should be default when importing. what is it set to for your texture?
Yes I am using Photoshop. What are you using?
Can you upload the texture you are trying to use so I can take a look at it?
I can not upload a TGA file but I can upload this PNG file that has transparency. You can use this for testing
Sorry for the late replay, I was unable to use this file, I don't know why, I got this message below"Texture Type to " Default " it can't imported to the scene" should be default when importing. what is it set to for your texture?
Yes I am using Photoshop. What are you using?
Can you upload the texture you are trying to use so I can take a look at it?
I can not upload a TGA file but I can upload this PNG file that has transparency. You can use this for testing
View attachment 468770
you can attach png files here. please attach the texture so I can take a look at it
I have this PNG fileyou can attach png files here. please attach the texture so I can take a look at it
also know that a 1024 is a rather large texture for the 3DS.
Sounds like you want to do a projection effect? what material are you using?
and here is what I expected :-I have this PNG file
it's only black
and this is the problem :-
Even when change the transparency it still soled black black, I don't know why, I only want it to be like 50% clear
in a real hardware it could be 100% or 0%
Well, I got a temporary solution !!!you can attach png files here. please attach the texture so I can take a look at it
also know that a 1024 is a rather large texture for the 3DS.
Sounds like you want to do a projection effect? what material are you using?
ok so I see the problem.
Thanks I appreciate thatyeah happy to help
1. you texture is not a power of 2
View attachment 470615
All game textures that will live in 3D space must be power of 2. this helps video cards quickly processes
the bit data.
16 x
32 x
64 x
128 x
256 x
512 x
1024 x
2048 x
Texture can be ONLY one of those sizes if its in 3D space - only UI textures can sorta ignore this rule. Id shoot to still be power of 2 when ever possible for UI and always for 3d models or anything in the game space that is not UI.
You can do combinations of these sizes as well - my advice is to keep the textures horizontal length as the bigger value if going for none uniform sizes. do not go smaller than 16 some video cards don't like such small values and tiling can be just as expensive as transparency if done wrong. For the 3DS I recommend keeping your textures between 1024 and 32 pixels. No bigger or smaller than that and try to make the vast amount of your textures 128 or 256. Lastly I get that not everything fits neatly in these sizes. it just part of the game development charm
32 x 32
View attachment 470619
256 x 1024
View attachment 470618
2. next the texture does not have an Alpha -
View attachment 470617
I would recommend an image size of 128x128 with Alpha saved as tga ( normal tga ) not a NW4C TGA!
i will upload this one for you. I/m not clear how it is that you want your texture to be transparent so ill make this as an example and a 50% all transparent.
View attachment 470620
I'm glad you found a solution via animation didn't even know you could do that very cool to Know!
Ill still upload these so other can learn too.
SETUP the Texture in UNITY
Lastly I do want to point out how these textures and materials need to be setup:
for The texture make sure...
1. Alpha source is Input Texture Alpha
2. Overide for Nintendo 3DS is checked
3. make sure max size is correct
4. Make sure the compression has an A in it for Alpha.
View attachment 470621
View attachment 470623
ETC is better compression but causes more banding, RGBA 32bit will have smoother transparancy but the file size will be bigger. Since this is a Black and white image you can also use Alpha 8
You will of course get better results with a TGA than a PNG since PNG's have compression baked in.
below I have a TGA 128x128 and a PNG 128x128 as you can see the tga has a much smoother transparency. While the PNG
has Banding no matter what 3DS compression you use, while the TGA can vary in banding based off compression?
Here the TGA is set to RGBA 32 BIT which is the least compression but largest file size. You have to play with compression to see what will work best for a given texture.
View attachment 470624
SETUP the Material in UNITY
Lastly you have to select a material that will have transparency.
bare in mind unity and the 3DS are not the same thing. just cause it works in Unity does not mean it will translate to the 3DS. Always test on hardware. To use these textures with Alpha you must select a shader that is transparent and compatible with the 3DS.
Use Legacy Shaders / Transparent / Diffuse
View attachment 470625
This will ensure it will work on the 3DS
Here are the files I made in photoshop - as you know I sadly cannot upload TGA's
both are 128x128
View attachment 470630View attachment 470631
I use this place for troubleshooting so at least to me all 3DS questions are welcomeSorry to hijack this thread, but. I have been struggling to make a dynamic shader/script for changing texture of a character.
All attempts have worked in unity, but not on real hardware & citra.
For the model I am trying to use a texture made of a base color and one png layered on top (well below the 512x512 limits). Did a shader that works wonders in unity. It however, does not work in the real game.
I've also tried to implement a blinking animation using a script, it worked, but failed to do so on the real hardware. In the start function I created two textures and assigned them to 2 materials and swapped between the textures to create a blinking effect.
Any and all shader attempts so far have resulted poorly.. What am I doing wrong?
(and I am quite sure it should be possible, since this exists: https://gbatemp.net/threads/unity-3ds-shader.501169/, but I've been unable to try to use it)
Thanks for the reply!I use this place for troubleshooting so at least to me all 3DS questions are welcome
you can use 1024x1024's - as a matter of fact I using quite a few as a texture atlas reduces draw calls
they just vram heavy.
That is a tricky shader to write - you have to use a Texture combiner to do it you cant use a GL es 2.0 fragment shader.
which is what typically most people are use to writing.
Now when you say dynamically changing the texture do you mean - straight swapping out 1 texture for another? or do you mean changing the colors dynamically of that texture using a alpha channel mask to only affect certain certain parts of the texture? Also do you want the color/texture change to be dynamically affected via code?
Shader "Custom/OverlayWithBaseColor"
{
Properties
{
_MainTex ("Base Texture", 2D) = "white" {}
_OverlayTex ("Overlay Texture", 2D) = "white" {}
_BaseColor ("Base Color", Color) = (1,1,1,1)
}
SubShader
{
Tags { "RenderType"="Opaque" }
LOD 200
CGPROGRAM
#pragma surface surf Lambert
sampler2D _MainTex;
sampler2D _OverlayTex;
fixed4 _BaseColor;
struct Input
{
float2 uv_MainTex;
float2 uv_OverlayTex;
};
void surf (Input IN, inout SurfaceOutput o)
{
// Sample base texture and overlay texture
fixed4 baseTex = tex2D(_MainTex, IN.uv_MainTex) * _BaseColor;
fixed4 overlayTex = tex2D(_OverlayTex, IN.uv_OverlayTex);
// Combine base and overlay
o.Albedo = baseTex.rgb * (1.0 - overlayTex.a) + overlayTex.rgb * overlayTex.a;
o.Alpha = baseTex.a * (1.0 - overlayTex.a) + overlayTex.a;
}
ENDCG
}
FallBack "Diffuse"
}using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class BlinkingAnimation : MonoBehaviour
{
public Material openEyeMaterial; // Assigned via Inspector
public Material closedEyeMaterial; // Assigned via Inspector
public Renderer player; // The Renderer of the player model
private float blinkTimer;
private float blinkInterval = 5.0f;
private float blinkDuration = 0.2f;
void Start()
{
// Load textures from Resources
// files must be loaded in Assets/Resources/Textures/...., and their file ending trimmed.
Texture2D baseTexture = Resources.Load<Texture2D>("Textures/base");
Texture2D openEyeTexture = Resources.Load<Texture2D>("Textures/EyeClosed");
Texture2D closedEyeTexture = Resources.Load<Texture2D>("Textures/EyeOpen");
if (baseTexture == null || openEyeTexture == null || closedEyeTexture == null )
{
Debug.LogError("One or more textures could not be loaded. Check the paths in Resources.");
return;
}
// Assign the base texture to the materials
AssignMaterialTexture(openEyeMaterial, baseTexture, openEyeTexture);
AssignMaterialTexture(closedEyeMaterial, baseTexture, closedEyeTexture);
// Set initial material
if (player != null && openEyeMaterial != null)
{
player.material = openEyeMaterial;
}
blinkTimer = blinkInterval;
}
void Update()
{
blinkTimer -= Time.deltaTime;
if (blinkTimer <= 0)
{
StartCoroutine(Blink());
blinkTimer = blinkInterval + Random.Range(-1.0f, 1.0f);
}
}
//this code does the "exchange of textures"
private IEnumerator Blink()
{
Texture openEyeMat = openEyeMaterial.mainTexture;
openEyeMaterial.mainTexture = closedEyeMaterial.mainTexture;
closedEyeMaterial.mainTexture = openEyeMat;
yield return new WaitForSeconds(blinkDuration);
openEyeMat = openEyeMaterial.mainTexture;
openEyeMaterial.mainTexture = closedEyeMaterial.mainTexture;
closedEyeMaterial.mainTexture = openEyeMat;
}
private void AssignMaterialTexture(Material material, Texture2D baseTexture, Texture2D overlayTexture)
{
if (material == null)
{
Debug.LogError("Material is not assigned in the Inspector.");
return;
}
Texture2D combinedTexture = Merge(baseTexture, overlayTexture);
material.mainTexture = combinedTexture;
}
//from some older stackoverflow, not my code. But it works to create a merged image
public static Texture2D Merge(params Texture2D[] textures) {
if (textures == null || textures.Length == 0)
return null;
int oldQuality = QualitySettings.GetQualityLevel();
QualitySettings.SetQualityLevel(5);
RenderTexture renderTex = RenderTexture.GetTemporary(
textures[0].width,
textures[0].height,
0,
RenderTextureFormat.Default,
RenderTextureReadWrite.Linear);
Graphics.Blit(textures[0], renderTex);
RenderTexture previous = RenderTexture.active;
RenderTexture.active = renderTex;
GL.PushMatrix();
GL.LoadPixelMatrix(0, textures[0].width, textures[0].height, 0);
for (int i = 1; i < textures.Length; i++)
Graphics.DrawTexture(new Rect(0, 0, textures[0].width, textures[0].height), textures[i]);
GL.PopMatrix();
Texture2D readableText = new Texture2D(textures[0].width, textures[0].height);
readableText.ReadPixels(new Rect(0, 0, renderTex.width, renderTex.height), 0, 0);
readableText.Apply();
RenderTexture.active = previous;
RenderTexture.ReleaseTemporary(renderTex);
QualitySettings.SetQualityLevel(oldQuality);
return readableText;
}
}The unity that I have (according to my docs) says that it should support OpenGL ES 2.0.humm the Surface Function may not be converting to GL ES 1.1
I have not seen any Surface shaders in any Unity 3DS projects. most are either simple fragment shaders or texture combiners. I honestly have no idea of the 3DS shader converter script will convert that shader type. I recommend writing all your shaders as either fragment or texture combiner.
now as for the effect...it sounds like you want a blinking light effect in your texture correct?
Could you show the texture or the part of the texture you want to blink? doesn't need to be full rez or anything
I ask because there are a few different ways to tackle this effect pending what the effect is
that may be much easier and doesn't involve writing a new shader and a timing script...well sorta It may require writing a scrolling shader..which will need a custom timing script so LOL
Either way I can help just want to clearly understand the desired effect you going for
Also know that using Time.deltaTime over very long periods of time on the 3DS can cause float point errors past a few hours - I wrote a custom time.deltatime shader script that would reset time based shaders after 30 mins. had the game running all night till morning with no float point errors. prior to that I had a jittery vertex jumbled mess.
Tip:
I recommended leavening your gaming running over night on hardware to see what it might do. you will be surprised how much deltatime stuff breaks over time on 3DS hardware.
A pc or emulator doesn't translate this stuff since a PC has signifiganly better hardware.
Thing is, not a single shader that I have looked on was working. All of them turned out to be either black/white colors. Citra, when loading, does not show any shaders being loaded, so that's my first red flag. I feel like I am missing out on something obvious, like a checkbox for making sure that unity compiles the shader code as well.
Yessir, you are correct, these are the images:
Oh, glad to know
. It's probably possible to reset that time or something similar, so that there are no float errors
Oh you mean a blinking eye...not a blinking light. and it seems like you want the eyes to be emissive ( have a glowing effect ) is this correct?The unity that I have (according to my docs) says that it should support OpenGL ES 2.0.
Straight from the docs:
Thing is, not a single shader that I have looked on was working. All of them turned out to be either black/white colors. Citra, when loading, does not show any shaders being loaded, so that's my first red flag. I feel like I am missing out on something obvious, like a checkbox for making sure that unity compiles the shader code as well.
Yessir, you are correct, these are the images: View attachment 474630View attachment 474631View attachment 474632(they don't do much apart from layer on top of one another - also, tell me, if you'd like the file itself, I will gladly share)
They are supposed to combine into two different textures and it makes it seem like it blinks.
Oh, glad to know
Either way, thank you so far for the support! ^^
) No no, sorry for the confusion, I just want a simple blink animation on the character. ^^
but this code fails to work on real hardware. Huh, that's interesting, I will take a look as well ^^
Thank you, but I was more speaking about writing my own shader, since I would like more control over the model (eg. having to stack several PNGs as a texture or being able to change color of one layer of the png and then layer it on top).
Glad you got it to work
That's all very good points you have there!Glad you got it to work
The code you wrote is for a Surface shader - Surface shaders tend to be more Unity proprietary code that have a bunch of pre-packaged fragment shader code. Another way to phrase it is your using a shader script that has a prepackaged shader attached understands its a building block /template of shader code as opposed to raw shader code...least that is my understanding of it.
I think the 3DS shader converter script expects the shaders to be formatted as either a Texture combiner or Fragment shader. My guess is the Surface shader uses a bunch of prepackaged GL ES 2.0 or higher functions which straight up will not work on the 3DS.
Use GL ES 1.1 compliant fragment shaders / Texture combiner format. There are some simple Open GL ES 2.0 stuff that translates but combining multiple textures during the fragment portion of the shader can cause it not to convert down to Open GL ES 1.1
It is and was a common Pain Point for Unity 3DS developers. I been thinking about making a library for everyone in the 3DS Unity community but its no small undertaking and since I am self taught id like talk to a real shader programmer before releasing my shaders into the wild.
It took me a year to learn enough about shader code to write the shaders I got of course with the help of Chat GPT. Not to write the shader code cause it cant do it. Believe me I triedThat's all very good points you have there!
From what I have seen, the OpenGL shaders should be as if native on the system, since they are written in C++, and while I can say that I am comfortable with c++, shaders aren't scope of my studies
Sad to see that shaders are kinda...wonky to say the least on the 3DS. I feel like some games had to make use of it, but I do not know which ones used unity and not nintendo's proprietary software if they have/had any
but to help me understand enough about the code and its structure so Icould do it myself. Having a old school Art production background also also helps because I know what shaders you can and cant have on older tech and how to fake it since I had to back then. I wish I knew C++ currently I'm teaching myself C# and just coding structures in general. I wish I had studied this sooner in life...
Wow! Looks like shaders in Unity 3ds are more specific and complicated than I thought...It took me a year to learn enough about shader code to write the shaders I got of course with the help of Chat GPT. Not to write the shader code cause it cant do it. Believe me I tried
Honesty the 3DS can do alot, its really quite impressive. but moderation is key. Yes normals yes vertex effects yes animated UVs yes dynamic lighting but you got to be very diligent about where and how effects are applied. Thing is tho most of the visual tricks have not been as tuorialized because it was just right before the era of sharing and YouTube.
Most of the more advanced shaders I have had to dig into websites made in 2010's era most of it unkept. really makes digging for information a challenge.
anything from Open GL 2.0 and on there are millions of tutorials and shader node editors its much easier but before than? Ps2 - Game cube era shaders? It was the wild west! shader programmers were the rarest breed. You understood Code AND Art?! Heresy! Day Walkers
a WITCH! lol yeah those old school tricks are very few and far between. Wish I could talk to some of those old production people fill a bunch of knowledge gaps I have.
There was a 3DS tutorial series made by Unity - covered a bunch of topics. I been scouring the web for it. It could be downloaded from the Dev forums. Someone has it on a hard drive somewhere! I just need to convince them to upload it
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