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  LibGDX draw texture on polygone  (Read 469 times)
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Offline duplex199126

Senior Devvie


Medals: 8
Projects: 7



« Posted 2014-07-06 21:58:11 »

Hello
I'm sorry for my english.
Tell me who knows, I need to fill a polygon texture like this:

But i get this:


This my code:

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package com.absoft.balance.screen;

import java.util.ArrayList;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.Screen;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.PolygonRegion;
import com.badlogic.gdx.graphics.g2d.PolygonSprite;
import com.badlogic.gdx.graphics.g2d.PolygonSpriteBatch;
import com.badlogic.gdx.graphics.g2d.TextureRegion;
import com.badlogic.gdx.math.EarClippingTriangulator;

public class GameScreen implements Screen {

   TextureRegion textureRegion;
   PolygonSpriteBatch batch;
   ArrayList<PolygonSprite> polygonSprites = new ArrayList<PolygonSprite>();

   public GameScreen() {

      batch = new PolygonSpriteBatch();
      textureRegion = new TextureRegion(new Texture(
            Gdx.files.internal("123.png")));

      float t = 0;
      float[] vertices = new float[] { 0 + t, 0 + t, 250 + t, 250 + t,
            500 + t, 0 + t };
      polygonSprites.add(new PolygonSprite(new PolygonRegion(textureRegion,
            vertices, new EarClippingTriangulator().computeTriangles(
                  vertices).toArray())));

   }

   @Override
   public void render(float delta) {

      Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
      batch.begin();
      // batch.setShader(shader);
      for (int i = 0; i < polygonSprites.size(); i++) {
         polygonSprites.get(i).draw(batch);
         // batch.flush();//uncomment for expected result
      }
      batch.end();

   }

   @Override
   public void resize(int width, int height) {
   }

   @Override
   public void show() {
   }

   @Override
   public void hide() {
   }

   @Override
   public void resume() {
   }

   @Override
   public void dispose() {

   }

   @Override
   public void pause() {
   }

}


What do you think?? what i do wrong?
Online Longarmx
« Reply #1 - Posted 2014-07-07 19:30:32 »

Sorry I can't help much, but it appears like the "triangulator" is not creating the correct texture coordinates.

Offline duplex199126

Senior Devvie


Medals: 8
Projects: 7



« Reply #2 - Posted 2014-07-10 16:27:57 »

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