首先,我试图创造我的障碍.
这些只是矩形.
我尝试将所有数据(对于所有矩形都相同)静态化.
颜色,中Startposition,着色器.
我正在尝试这个,导致早期版本工作,有性能问题.
当我开始工作时,我也想切换到VBO.
这些对象将被单独移动和缩放(而不是代码).
我想尝试我的代码,但我面临一个我不明白的错误.
这是我的Logcat输出
04-08 15:03:05.573: E/AndroIDRuntime(3051): FATAL EXCEPTION: GLThread 492604-08 15:03:05.573: E/AndroIDRuntime(3051): Process: com.example.jump,PID: 305104-08 15:03:05.573: E/AndroIDRuntime(3051): java.lang.IllegalArgumentException: length - offset < count*4 < needed04-08 15:03:05.573: E/AndroIDRuntime(3051): at androID.opengl.GLES20.gluniform4fv(Native Method)04-08 15:03:05.573: E/AndroIDRuntime(3051): at com.example.jump.ObstacleGL.initialize(ObstacleGL.java:82)04-08 15:03:05.573: E/AndroIDRuntime(3051): at com.example.jump.GameRenderer.onSurfaceCreated(GameRenderer.java:57)04-08 15:03:05.573: E/AndroIDRuntime(3051): at androID.opengl.GLSurfaceVIEw$GLThread.guardedRun(GLSurfaceVIEw.java:1501)04-08 15:03:05.573: E/AndroIDRuntime(3051): at androID.opengl.GLSurfaceVIEw$GLThread.run(GLSurfaceVIEw.java:1240)
这让我困惑,长度为3,偏移量为0,计数* 4为4.
我不知道“需要”是什么价值.我认为这是声明失败的地方.
这是我的班级.
我在onSurfacecreated中调用了初始化方法
package com.example.jump;import java.nio.ByteBuffer;import java.nio.ByteOrder;import java.nio.floatBuffer;import java.nio.ShortBuffer;import androID.opengl.GLES20;import androID.opengl.Matrix;public class ObstacleGL { static final int COORDS_PER_VERTEX = 3; static final int vertexStrIDe = COORDS_PER_VERTEX * 4; private static final String vertexshadercode = "uniform mat4 uMVPMatrix;" + "attribute vec4 vposition;" + "voID main() {" + " gl_position = uMVPMatrix * vposition;" + "}"; private static final String fragmentshadercode = "precision mediump float;" + "uniform vec4 vcolor;" + "voID main() {" + " gl_Fragcolor = vcolor;" + "}"; private static float [] coords={ //x,y,z z=0 1,1,//ol 1,//ul 1.2f,//ur 1.2f,0 //or }; private static final short[] drawOrder = { 0,2,3 }; private static int fragmentShader; private static int vertexShader; private static int mProgram; private static float[] color={0.33f,0.33f}; private static int colorHandle; private static int positionHandle; private static floatBuffer vertexBuffer; private static ShortBuffer drawListBuffer; //Gamelogic public final int ID; private float x,height,wIDth; private float xOffset,yOffset; //Opengl private int matrixHandle; private int vertexCount; private float[] translationMatrix=new float[16]; public static voID initialize(){ fragmentShader=GameRenderer.loadShader(GLES20.GL_FRAGMENT_SHADER,fragmentshadercode); vertexShader=GameRenderer.loadShader(GLES20.GL_VERTEX_SHADER,vertexshadercode); ByteBuffer bb; ByteBuffer dlb; bb= ByteBuffer.allocateDirect(coords.length*4); bb.order(ByteOrder.nativeOrder()); vertexBuffer=bb.asfloatBuffer(); vertexBuffer.put(coords); vertexBuffer.position(0); dlb=ByteBuffer.allocateDirect(12); //drawOrder.length*2 dlb.order(ByteOrder.nativeOrder()); drawListBuffer=dlb.asShortBuffer(); drawListBuffer.put(drawOrder); drawListBuffer.position(0); mProgram=GLES20.glCreateProgram(); GLES20.glAttachShader(mProgram,fragmentShader); GLES20.glAttachShader(mProgram,vertexShader); colorHandle=GLES20.glGetUniformlocation(mProgram,"vcolor"); positionHandle=GLES20.glGetAttribLocation(mProgram,"vposition"); GLES20.gllinkProgram(mProgram); GLES20.glVertexAttribPointer(positionHandle,COORDS_PER_VERTEX,GLES20.GL_float,false,vertexStrIDe,vertexBuffer); GLES20.gluniform4fv(colorHandle,color,0); } public ObstacleGL(int ID,float x,float y,float height,float wIDth) { this.ID=ID; //not used at the moment this.x=x; this.xOffset=0; this.y=0; this.yOffset=0; this.height=height; this.wIDth=wIDth; // vertexCount=coords.length/COORDS_PER_VERTEX; Matrix.setIDentityM(translationMatrix,0); //getting the handle to set new translations matrixHandle=GLES20.glGetUniformlocation(mProgram,"uMVPMatrix"); } public voID draw() { GLES20.gluseProgram(mProgram); //here I give the new position GLES20.gluniformMatrix4fv(matrixHandle,translationMatrix,0); GLES20.glDrawArrays(GLES20.GL_TRIANGLE_FAN,vertexCount); GLES20.gldisabLevertexAttribarray(positionHandle); } public voID moveX(float x) //moves the Obstacle on the x axIEs { this.xOffset+=x; Matrix.translateM(translationMatrix,x,0); } public voID moveY(float y) //moves the Obstacle on the y axIEs { this.yOffset+=y; Matrix.translateM(translationMatrix,0); }} 我也可以告诉你我的渲染器类
package com.example.jump;import java.util.linkedList;import javax.microedition.khronos.egl.EGLConfig;import javax.microedition.khronos.opengles.GL10;import androID.opengl.GLES20;import androID.opengl.GLSurfaceVIEw;public class GameRenderer implements GLSurfaceVIEw.Renderer,GameVisualisation { private linkedList<ObstacleGL> obstacleList=new linkedList<ObstacleGL>(); private linkedList<Obstacle> obstacleQueue= new linkedList<Obstacle>(); //Renderer Methoden @OverrIDe public voID onDrawFrame(GL10 gl) { GLES20.glClear(GLES20.GL_color_BUFFER_BIT); createNewObstacles(); for (int i = 0; i < obstacleList.size(); i++) { obstacleList.get(i).draw(); } } public static int loadShader(int type,String shadercode) { int shader=GLES20.glCreateShader(type); GLES20.glShaderSource(shader,shadercode); GLES20.glCompileShader(shader); return shader; } private voID createNewObstacles() { while(!obstacleQueue.isEmpty()){ Obstacle obs=obstacleQueue.poll(); obstacleList.add(new ObstacleGL(obs.ID,(float)obs.xposition,(float)obs.yposition,(float)obs.height,(float)obs.wIDth)); } } @OverrIDe public voID onSurfaceChanged(GL10 gl,int wIDth,int height) { GLES20.glVIEwport(0,wIDth,height); } @OverrIDe public voID onSurfaceCreated(GL10 gl,EGLConfig config) { GLES20.glClearcolor(0.5f,0.5f,1.0f); ObstacleGL.initialize(); }//more gamerelated stuff is happening here}解决方法 所以我自己做了.问题似乎是他不接受尺寸为3的float阵列和vec4制服.解决方案是将Alpha通道添加到我的颜色数组中. 我换了
private static float[] color={0.33f,0.33f}; 同
private static float[] color={0.33f,0.33f,1}; 总结 以上是内存溢出为你收集整理的android – OpenGL ES 2.0 IllegalArgumentException全部内容，希望文章能够帮你解决android – OpenGL ES 2.0 IllegalArgumentException所遇到的程序开发问题。
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