public void Draw(IGL10 gl)
{
gl.GlFrontFace(GL10.GlCw);
gl.GlVertexPointer(3, GL10.GlFixed, 0, mVertexBuffer);
gl.GlColorPointer(4, GL10.GlFixed, 0, mColorBuffer);
gl.GlDrawElements(GL10.GlTriangles, 36, GL10.GlUnsignedByte, mIndexBuffer);
}
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 Draw(int primitiveType, int offset, int numVertices)
{
IGL10 gl = _glGraphics.GL10;
if (_indices != null)
{
_indices.Position(offset);
gl.GlDrawElements(primitiveType, numVertices, GL10.GlUnsignedShort, _indices);
}
else
{
gl.GlDrawArrays(primitiveType, offset, numVertices);
}
}
public void Draw(IGL10 gl)
{
gl.GlFrontFace(IGL10Constants.GL_CW);
gl.GlVertexPointer(3, IGL10Constants.GL_FLOAT, 0, mVertexBuffer);
gl.GlColorPointer(4, IGL10Constants.GL_FLOAT, 0, mColorBuffer);
gl.GlEnableClientState(IGL10Constants.GL_VERTEX_ARRAY);
gl.GlEnableClientState(IGL10Constants.GL_COLOR_ARRAY);
// draw all 36 triangles
gl.GlDrawElements(IGL10Constants.GL_TRIANGLES, 36, IGL10Constants.GL_UNSIGNED_BYTE,
mIndexBuffer);
gl.GlDisableClientState(IGL10Constants.GL_VERTEX_ARRAY);
gl.GlDisableClientState(IGL10Constants.GL_COLOR_ARRAY);
}
public void Draw(IGL10 gl)
{
gl.GlFrontFace(IGL10Constants.GL_CW);
gl.GlVertexPointer(3, IGL10Constants.GL_FLOAT, 0, mVertexBuffer);
gl.GlColorPointer(4, IGL10Constants.GL_FLOAT, 0, mColorBuffer);
gl.GlEnableClientState(IGL10Constants.GL_VERTEX_ARRAY);
gl.GlEnableClientState(IGL10Constants.GL_COLOR_ARRAY);
// draw all 36 triangles
gl.GlDrawElements(IGL10Constants.GL_TRIANGLES, 36, IGL10Constants.GL_UNSIGNED_BYTE,
mIndexBuffer);
gl.GlDisableClientState(IGL10Constants.GL_VERTEX_ARRAY);
gl.GlDisableClientState(IGL10Constants.GL_COLOR_ARRAY);
}
public override void Present(float deltaTime)
{
IGL10 gl = _glGraphics.GL10;
gl.GlViewport(0, 0, _glGraphics.Width, _glGraphics.Height);
gl.GlClear(GL10.GlColorBufferBit);
gl.GlMatrixMode(GL10.GlProjection);
gl.GlLoadIdentity();
gl.GlOrthof(0, 540, 0, 960, 1, -1);
gl.GlEnable(GL10.GlTexture2d);
_texture.BindTexture();
gl.GlEnableClientState(GL10.GlVertexArray);
gl.GlEnableClientState(GL10.GlTextureCoordArray);
_vertices.Position(0);
gl.GlVertexPointer(2, GL10.GlFloat, _vertexSize, _vertices);
_vertices.Position(2);
gl.GlTexCoordPointer(2, GL10.GlFloat, _vertexSize, _vertices);
gl.GlDrawElements(GL10.GlTriangles, 6, GL10.GlUnsignedShort, _indices);
}
public void Draw (IGL10 gl)
{
gl.GlFrontFace (GL10.GlCw);
gl.GlVertexPointer (3, GL10.GlFixed, 0, mVertexBuffer);
gl.GlColorPointer (4, GL10.GlFixed, 0, mColorBuffer);
gl.GlDrawElements (GL10.GlTriangles, 36, GL10.GlUnsignedByte, mIndexBuffer);
}
