TextureArray bug?

Penny · September 21, 2015, 2:42pm

Hi,
I am implementing texture arrays. The problem is that the textures dont seem to wrap according to the settings.

Code snippets as follows…

TextureArray dmta=new TextureArray(dma);
dmta.setWrap(Texture2D.WrapMode.Repeat);

material.setParam("DiffuseMaps",VarType.TextureArray,dmta);

frag…

if i just use the following the surface is blank…

vec4 diffuseColor1=texture2D(m_DIFFUSEMAPS[1],texCoord1);

To make it work I have to do the following…

vec2 tc1;
tc1.x=fract(texCoord1.x);
tc1.y=fract(texCoord1.y);
vec4 diffuseColor1=texture2D(m_DIFFUSEMAPS[1],tc1);

Why doesnt the wrap mode work in texture arrays?

is wrap mode legacy from the Texture object that just is not implemented in TextureArray?

It would be nice to know the answers to these. The work around code is fine but I would like to put my concerns of “is this the correct way” to bed.

Many Thanks
Penny

Empire_Phoenix · September 21, 2015, 2:49pm

I had at some point I had repeating texturemaps in arrays, but this is quite a while ago, when they were new.

Penny · September 21, 2015, 3:19pm

I realise now that the TextureArray is not being passed to the frag.

Here are the code snippets…

j2md…

MaterialParameters
 {
 Texture2D DiffuseMaps
 Texture2D HeightMaps
 }

vert…
nothing declared or any mention in regard to maps.

frag…
uniform sampler2D m_DIFFUSEMAPS[6];
uniform sampler2D m_HEIGHTMAPS[6];

I cant seem to find an example of implementation. What am I doing wrong?

Many Thanks
Penny

Penny · September 21, 2015, 3:20pm

I tried changinh the materialParameters from Texture2D to TextureArray with no errors and no change in results.

Momoko_Fan · September 21, 2015, 6:07pm

There’s an example on how to use them here:

github.com

jMonkeyEngine/jmonkeyengine/blob/master/jme3-examples/src/main/java/jme3test/texture/TestTextureArray.java

package jme3test.texture;


import com.jme3.app.SimpleApplication;
import com.jme3.material.Material;
import com.jme3.math.Vector3f;
import com.jme3.renderer.Caps;
import com.jme3.scene.Geometry;
import com.jme3.scene.Mesh;
import com.jme3.scene.VertexBuffer.Type;
import com.jme3.texture.Image;
import com.jme3.texture.Texture;
import com.jme3.texture.TextureArray;
import com.jme3.util.BufferUtils;
import java.util.ArrayList;
import java.util.List;

public class TestTextureArray extends SimpleApplication
{

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github.com

jMonkeyEngine/jmonkeyengine/blob/master/jme3-examples/src/main/resources/jme3test/texture/UnshadedArray.j3md

MaterialDef Unshaded {

    MaterialParameters {
        TextureArray ColorMap
        Texture2D LightMap
        Color Color (Color)
        Boolean VertexColor
        Boolean SeparateTexCoord

        // Texture of the glowing parts of the material
        Texture2D GlowMap
        // The glow color of the object
        Color GlowColor
    }

    Technique {
        VertexShader GLSL300 GLSL100:   jme3test/texture/UnshadedArray.vert
        FragmentShader GLSL300 GLSL100: jme3test/texture/UnshadedArray.frag

        WorldParameters {

This file has been truncated. show original

github.com

jMonkeyEngine/jmonkeyengine/blob/master/jme3-examples/src/main/resources/jme3test/texture/UnshadedArray.frag

#import "Common/ShaderLib/GLSLCompat.glsllib"

#extension GL_EXT_texture_array : enable
// #extension GL_EXT_gpu_shader4 : enable

uniform vec4 m_Color;

#if defined(HAS_GLOWMAP) || defined(HAS_COLORMAP) || (defined(HAS_LIGHTMAP) && !defined(SEPARATE_TEXCOORD))
    #define NEED_TEXCOORD1
#endif

#ifdef HAS_COLORMAP
    #if !defined(GL_EXT_texture_array) && __VERSION__ < 130
        #error Texture arrays are not supported, but required for this shader.
    #endif

    uniform sampler2DArray m_ColorMap;
#endif

#ifdef NEED_TEXCOORD1

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Penny · September 21, 2015, 6:56pm

Sorted thank you.

The wiki & documentation have lots of broken links which makes it difficult to understand some aspects. I will retain the link to the examples for future reference.

Many Thanks

Momoko_Fan · September 21, 2015, 7:18pm

Do you know of any specific pages which have issues with links?

Penny · September 21, 2015, 7:44pm

It may well be user contributed content links that are broken. I especially notice a lot by mifth. All the links to the shaddow blow project are defunct or the location does not hold the source. If I come across any links that are broken I will keep you informed.
Regards
Penny

Momoko_Fan · September 21, 2015, 8:31pm

Just so you know, you can login onto the wiki with your credentials and modify any pages.