我想在OpenGL ES「2.0」中結合2D和3D，即使在openGL es 1.0和2.0上有很多問題，但我很難解決這個問題。因此，對於2D我要脫離本教程：http://www.raywenderlich.com/9743/how-to-create-a-simple-2d-iphone-game-with-opengl-es-2-0-and-glkit-part-1和3D我正在使用現有的多維數據集旋轉xcode模板...ios opengl es 2.0 2D + 3D組合
我在第二個glDrawArray上獲取EXC_BAD_ACCESS（不知何故，它認爲原始緩衝區仍然適用？無論如何，在繪製2D紋理之前解除此綁定？）錯誤與以下渲染函數。它可以工作，如果我禁用行： glEnableVertexAttribArray（GLKVertexAttribPosition）; glVertexAttribPointer（GLKVertexAttribPosition，3，GL_FLOAT，GL_FALSE，24，BUFFER_OFFSET（0））; glEnableVertexAttribArray（GLKVertexAttribNormal）; glVertexAttribPointer（GLKVertexAttribNormal，3，GL_FLOAT，GL_FALSE，24，BUFFER_OFFSET（12））;
發生了什麼事？提前致謝。
[代碼]
glEnable(GL_DEPTH_TEST);
// glGenVertexArraysOES(1, &_vertexArrayNum);
// glBindVertexArrayOES(_vertexArrayNum);
glGenBuffers(1, &_vertexBufferNum);
glBindBuffer(GL_ARRAY_BUFFER, _vertexBufferNum);
glBufferData(GL_ARRAY_BUFFER, sizeof(gCubeVertexData), gCubeVertexData, GL_STATIC_DRAW);
glEnableVertexAttribArray(GLKVertexAttribPosition);
glVertexAttribPointer(GLKVertexAttribPosition, 3, GL_FLOAT, GL_FALSE, 24, BUFFER_OFFSET(0));
glEnableVertexAttribArray(GLKVertexAttribNormal);
glVertexAttribPointer(GLKVertexAttribNormal, 3, GL_FLOAT, GL_FALSE, 24, BUFFER_OFFSET(12));
glBindVertexArrayOES(0);
float aspect = fabsf(self.view.bounds.size.width/self.view.bounds.size.height);
GLKMatrix4 projectionMatrix = GLKMatrix4MakePerspective(GLKMathDegreesToRadians(65.0f), aspect, 0.1f, 100.0f);
self.effect.transform.projectionMatrix = projectionMatrix;
GLKMatrix4 baseModelViewMatrix = GLKMatrix4MakeTranslation(0.0f, 0.0f, -4.0f);
// baseModelViewMatrix = GLKMatrix4Rotate(baseModelViewMatrix, _rotation, 0.0f, 1.0f, 0.0f);
// Compute the model view matrix for the object rendered with GLKit
// GLKMatrix4 modelViewMatrix = GLKMatrix4MakeTranslation(0.0f, 0.0f, 1.5f);
GLKMatrix4 modelViewMatrix = GLKMatrix4MakeRotation(_rotation, 0, 1, 0);
//modelViewMatrix = GLKMatrix4Rotate(modelViewMatrix, _rotation, 1.0f, 1.0f, 1.0f);
modelViewMatrix = GLKMatrix4Multiply(baseModelViewMatrix, modelViewMatrix);
self.effect.transform.modelviewMatrix = modelViewMatrix;
glClearColor(0.65f, 0.65f, 0.65f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glBindVertexArrayOES(_vertexArrayNum);
// Render the object with GLKit
// [self.effect prepareToDraw];
// glDrawArrays(GL_TRIANGLES, 0, 36);
modelViewMatrix = GLKMatrix4MakeScale(2.0f, 2.0f, 2.0f);
projectionMatrix = GLKMatrix4MakeOrtho(0, 480, 0, 320, -1024, 1048);
self.effect.transform.projectionMatrix = projectionMatrix;
self.effect.transform.modelviewMatrix = modelViewMatrix;
[self.effect prepareToDraw];
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_BLEND);
[self.player render];
[/代碼]
UPDATE： 添加glEnableClientState（GL_VERTEX_ARRAY）;纏繞在立方體繪圖部分......這擺脫了訪問錯誤的不良，但立方體和精靈都沒有繪製（除非我註釋掉代碼部分）...
UPDATE2： 所以問題顯然是在我調用glDrawArray來繪製多維數據集（這可以正常工作）之後......我再次調用glDrawArray，如下所示。但不知何故，它仍然試圖渲染之前的數組？ // 1 self.effect.texture2d0.name = self.textureInfo.name; self.effect.texture2d0.enabled = YES;
// 2
[self.effect prepareToDraw];
// 3
glEnableVertexAttribArray(GLKVertexAttribPosition);
glEnableVertexAttribArray(GLKVertexAttribTexCoord0);
// 4
long offset = (long)&_quad;
glVertexAttribPointer(GLKVertexAttribPosition, 2, GL_FLOAT, GL_FALSE, sizeof(TexturedVertex), (void *) (offset + offsetof(TexturedVertex, geometryVertex)));
glVertexAttribPointer(GLKVertexAttribTexCoord0, 2, GL_FLOAT, GL_FALSE, sizeof(TexturedVertex), (void *) (offset + offsetof(TexturedVertex, textureVertex)));
// 5
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);