MaterialDebugAppState is not reloading the changed shader instead reloads the old one

[b00nation]

If a shader-file has changed the application recognizes correctly the change, but the reload of the material actually reloads the old shader code instead of loading the new code. This is caused by the TechniqueDefault deep in the MaterialDefiniton.

[Nehon]

Could you provide a test case please

[b00nation]

@Nehon, sure, here you go:

Issue840.zip

In the fragment shader change the line:

gl_FragColor = vec4(1.0);//comment me
//gl_FragColor = vec4(1.0,0.0,0.0,1.0);//uncomment me

to

//gl_FragColor = vec4(1.0);//comment me
gl_FragColor = vec4(1.0,0.0,0.0,1.0);//uncomment me

otherwise, take a custom MaterialDefinition register a shader and change that one:

package mygame;

import com.jme3.app.FlyCamAppState;
import com.jme3.app.SimpleApplication;
import com.jme3.material.Material;
import com.jme3.scene.Geometry;
import com.jme3.scene.shape.Box;
import com.jme3.util.MaterialDebugAppState;

public class Main extends SimpleApplication {

    public static void main(String[] args) {
        Main app = new Main();
        app.start();
    }

    @Override
    public void simpleInitApp() {
        Box b = new Box(1, 1, 1);
        Geometry geom = new Geometry("Box", b);

        Material mat = new Material(assetManager, "MatDefs/Unshaded.j3md");
        geom.setMaterial(mat);
        MaterialDebugAppState materialDebugAppState = new MaterialDebugAppState();
        stateManager.attach(materialDebugAppState);
        rootNode.attachChild(geom);
        materialDebugAppState.registerBinding("MatDefs/Unshaded.frag", geom);
        stateManager.detach(stateManager.getState(FlyCamAppState.class));
    }

}

fragment-shader:
assets\MatDefs\Unshaded.frag

void main(){
    gl_FragColor = vec4(1.0);//comment me
    //gl_FragColor = vec4(1.0,0.0,0.0,1.0);//uncomment me
}

vertex-shader:
assets\MatDefs\Unshaded.vert

#import "Common/ShaderLib/GLSLCompat.glsllib"
#import "Common/ShaderLib/Skinning.glsllib"
#import "Common/ShaderLib/Instancing.glsllib"

attribute vec3 inPosition;

void main(){

    vec4 modelSpacePos = vec4(inPosition, 1.0);


    gl_Position = TransformWorldViewProjection(modelSpacePos);

}

MaterialDefinition:
assets\MatDefs\Unshaded.j3md

MaterialDef Unshaded {

    MaterialParameters {
    }

    Technique {
        VertexShader GLSL150:   MatDefs/Unshaded.vert
        FragmentShader GLSL150: MatDefs/Unshaded.frag

        WorldParameters {
            WorldViewProjectionMatrix
            WorldMatrix   
            ViewProjectionMatrix
            ViewMatrix
        }

        Defines {
        }
    }

}

[Nehon]

fixed in #840
Thanks a lot