public void OnDrawFrame(IGL10 gl)
{
/*
* Usually, the first thing one might want to do is to clear
* the screen. The most efficient way of doing this is to use
* glClear().
*/
gl.GlClear(GL10.GlColorBufferBit | GL10.GlDepthBufferBit);
/*
* Now we're ready to draw some 3D objects
*/
gl.GlMatrixMode(GL10.GlModelview);
gl.GlLoadIdentity();
gl.GlTranslatef(0, 0, -3.0f);
gl.GlRotatef(mAngle, 0, 1, 0);
gl.GlRotatef(mAngle * 0.25f, 1, 0, 0);
gl.GlEnableClientState(GL10.GlVertexArray);
gl.GlEnableClientState(GL10.GlColorArray);
mCube.Draw(gl);
gl.GlRotatef(mAngle * 2.0f, 0, 1, 1);
gl.GlTranslatef(0.5f, 0.5f, 0.5f);
mCube.Draw(gl);
mAngle += 1.2f;
}
public void OnDrawFrame(IGL10 gl)
{
/*
* Usually, the first thing one might want to do is to clear
* the screen. The most efficient way of doing this is to use
* glClear().
*/
gl.GlClear (GL10.GlColorBufferBit | GL10.GlDepthBufferBit);
/*
* Now we're ready to draw some 3D objects
*/
gl.GlMatrixMode (GL10.GlModelview);
gl.GlLoadIdentity ();
gl.GlTranslatef (0, 0, -3.0f);
gl.GlRotatef (mAngle, 0, 1, 0);
gl.GlRotatef (mAngle*0.25f, 1, 0, 0);
gl.GlEnableClientState (GL10.GlVertexArray);
gl.GlEnableClientState (GL10.GlColorArray);
mCube.Draw (gl);
gl.GlRotatef (mAngle*2.0f, 0, 1, 1);
gl.GlTranslatef (0.5f, 0.5f, 0.5f);
mCube.Draw (gl);
mAngle += 1.2f;
}
public void OnDrawFrame(IGL10 gl)
{
// 清除屏幕缓存和深度缓存
gl.GlClear(GL10.GlColorBufferBit | GL10.GlDepthBufferBit);
// 启用顶点坐标数据
gl.GlEnableClientState(GL10.GlVertexArray);
// 启用贴图坐标数组数据
gl.GlEnableClientState(GL10.GlTextureCoordArray); // ①
// 设置当前矩阵模式为模型视图。
gl.GlMatrixMode(GL10.GlModelview);
gl.GlLoadIdentity();
// 把绘图中心移入屏幕2个单位
gl.GlTranslatef(0f, 0.0f, -2.0f);
// 旋转图形
gl.GlRotatef(ma.angleY, 0, 1, 0);
gl.GlRotatef(ma.angleX, 1, 0, 0);
// 设置顶点的位置数据
gl.GlVertexPointer(3, GL10.GlFloat, 0, cubeVerticesBuffer);
// 设置贴图的坐标数据
gl.GlTexCoordPointer(2, GL10.GlFloat, 0, cubeTexturesBuffer); // ②
// 执行纹理贴图
gl.GlBindTexture(GL10.GlTexture2d, texture); // ③
// 按cubeFacetsBuffer指定的面绘制三角形
gl.GlDrawElements(GL10.GlTriangles, cubeFacetsBuffer.Remaining(),
GL10.GlUnsignedByte, cubeFacetsBuffer);
// 绘制结束
gl.GlFinish();
// 禁用顶点、纹理坐标数组
gl.GlDisableClientState(GL10.GlVertexArray);
gl.GlDisableClientState(GL10.GlTextureCoordArray);
// 递增角度值以便每次以不同角度绘制
}
public void OnDrawFrame(IGL10 gl)
{
gl.GlClear(IGL10Constants.GL_COLOR_BUFFER_BIT | IGL10Constants.GL_DEPTH_BUFFER_BIT);
gl.GlLoadIdentity();
gl.GlTranslatef(0.0f, 0.0f, -10.0f);
gl.GlRotatef(mCubeRotation, 1.0f, 1.0f, 1.0f);
mCube.Draw(gl);
gl.GlLoadIdentity();
mCubeRotation -= 0.7f;
}
public override void Present(float deltaTime)
{
IGL10 gl = _glGraphics.GL10;
gl.GlClear(GL10.GlColorBufferBit);
gl.GlMatrixMode(GL10.GlModelview);
_vertices.Bind();
for (int i = 0; i < NUM_BOBS; i++)
{
gl.GlLoadIdentity();
gl.GlTranslatef(_bobs[i].dx, _bobs [i].dy, 0);
gl.GlRotatef(_bobs[i].grad, 0, 0, -1f);
_vertices.Draw(GL10.GlTriangles, 0, 6);
}
_vertices.Unbind();
}
public void OnDrawFrame(IGL10 gl)
{
mObserver.OnDrawFrame();
gl.GlClearColor(Color.GetRedComponent(mBackgroundColor) / 255f,
Color.GetGreenComponent(mBackgroundColor) / 255f,
Color.GetBlueComponent(mBackgroundColor) / 255f,
Color.GetAlphaComponent(mBackgroundColor) / 255f);
gl.GlClear(GL10.GlColorBufferBit);
gl.GlLoadIdentity();
if (USE_PERSPECTIVE_PROJECTION)
{
gl.GlTranslatef(0, 0, -6f);
}
for (int i = 0; i < mCurlMeshes.Count; ++i)
{
mCurlMeshes.ElementAt(i).OnDrawFrame(gl);
}
}