/** Called to draw the current frame. */
public void onDrawFrame(IGL10 gl)
{
if (!IsActive)
{
return;
}
gl.GlClear(GL10.GlColorBufferBit | GL10.GlDepthBufferBit);
// Call our native function to render camera content
RecognitionFragment.RenderCamera(ViewportWidth, ViewportHeight, Angle);
float[] mvpMatrix = new float[16];
if (computeModelViewProjectionMatrix(mvpMatrix))
{
if (monkeyMesh != null && monkeyMesh.MeshLoaded)
{
if (monkeyMesh.GLLoaded)
{
//draw our 3d mesh on top of the marker
monkeyMesh.DrawMesh(mvpMatrix);
}
else
{
monkeyMesh.InitMeshGL();
}
RenderUtils.CheckGLError("completed Monkey head Render");
}
}
gl.GlFinish();
}
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
}
/** Called to draw the current frame. */
public void onDrawFrame(IGL10 gl)
{
if (!IsActive)
{
return;
}
gl.GlClear(GL10.GlColorBufferBit | GL10.GlDepthBufferBit);
// Call our native function to render camera content
GeoFragment.RenderCamera(ViewportWidth, ViewportHeight, Angle);
gl.GlFinish();
}
/** Called to draw the current frame. */
public void OnDrawFrame(IGL10 gl)
{
if (!IsActive)
{
return;
}
gl.GlClear(GL10.GlColorBufferBit | GL10.GlDepthBufferBit);
// Call our native function to render camera content
RecognitionFragment.RenderCamera(ViewportWidth, ViewportHeight, Angle);
if (RecognitionFragment.IsTracking)
{
Marker currentMarker = RecognitionFragment.CurrentMarker;
//Here we decide which 3d object to draw and we draw it
if (currentMarker.Id.CompareTo("3_522") == 0)
{
float[] mvMatrix = new float[16];
float[] pMatrix = new float[16];
if (ComputeModelViewProjectionMatrix(mvMatrix, pMatrix))
{
if (videoMesh != null && videoMesh.MeshLoaded)
{
if (videoMesh.GLLoaded)
{
videoMesh.DrawMesh(mvMatrix, pMatrix);
}
else
{
videoMesh.InitMeshGL();
}
RenderUtils.CheckGLError("completed video mesh Render");
}
}
}
else
{
float[] mvpMatrix = new float[16];
if (ComputeModelViewProjectionMatrix(mvpMatrix))
{
//draw our 3d mesh on top of the marker
if (monkeyMesh != null && monkeyMesh.MeshLoaded)
{
if (monkeyMesh.GLLoaded)
{
monkeyMesh.DrawMesh(mvpMatrix);
}
else
{
monkeyMesh.InitMeshGL();
}
RenderUtils.CheckGLError("completed Monkey head Render");
}
}
}
}
//if the video is still playing and we have lost tracking, we still draw the video,
//but in a fixed frontal position
if (!RecognitionFragment.IsTracking && videoMesh != null && videoMesh.IsPlaying())
{
float[] mvMatrix = new float[16];
float[] pMatrix = new float[16];
ComputeProjectionMatrix(pMatrix);
if (Angle == 0)
{
mvMatrix[0] = 1.0f; mvMatrix[1] = 0.0f; mvMatrix[2] = 0.0f; mvMatrix[3] = -0.5f;
mvMatrix[4] = 0.0f; mvMatrix[5] = -1.0f; mvMatrix[6] = 0.0f; mvMatrix[7] = 0.4f;
mvMatrix[8] = 0.0f; mvMatrix[9] = 0.0f; mvMatrix[10] = -1.0f; mvMatrix[11] = -1.3f;
mvMatrix[12] = 0.0f; mvMatrix[13] = 0.0f; mvMatrix[14] = 0.0f; mvMatrix[15] = 1.0f;
}
else if (Angle == 90)
{
mvMatrix[0] = 0.0f; mvMatrix[1] = 1.0f; mvMatrix[2] = 0.0f; mvMatrix[3] = -0.5f;
mvMatrix[4] = 1.0f; mvMatrix[5] = 0.0f; mvMatrix[6] = 0.0f; mvMatrix[7] = -0.5f;
mvMatrix[8] = 0.0f; mvMatrix[9] = 0.0f; mvMatrix[10] = -1.0f; mvMatrix[11] = -1.3f;
mvMatrix[12] = 0.0f; mvMatrix[13] = 0.0f; mvMatrix[14] = 0.0f; mvMatrix[15] = 1.0f;
}
else if (Angle == 180)
{
mvMatrix[0] = -1.0f; mvMatrix[1] = 0.0f; mvMatrix[2] = 0.0f; mvMatrix[3] = 0.5f;
mvMatrix[4] = 0.0f; mvMatrix[5] = 1.0f; mvMatrix[6] = 0.0f; mvMatrix[7] = -0.4f;
mvMatrix[8] = 0.0f; mvMatrix[9] = 0.0f; mvMatrix[10] = -1.0f; mvMatrix[11] = -1.3f;
mvMatrix[12] = 0.0f; mvMatrix[13] = 0.0f; mvMatrix[14] = 0.0f; mvMatrix[15] = 1.0f;
}
else if (Angle == 270)
{
mvMatrix[0] = 0.0f; mvMatrix[1] = -1.0f; mvMatrix[2] = 0.0f; mvMatrix[3] = 0.5f;
mvMatrix[4] = -1.0f; mvMatrix[5] = 0.0f; mvMatrix[6] = 0.0f; mvMatrix[7] = 0.5f;
mvMatrix[8] = 0.0f; mvMatrix[9] = 0.0f; mvMatrix[10] = -1.0f; mvMatrix[11] = -1.3f;
mvMatrix[12] = 0.0f; mvMatrix[13] = 0.0f; mvMatrix[14] = 0.0f; mvMatrix[15] = 1.0f;
}
videoMesh.DrawMesh(mvMatrix, pMatrix);
RenderUtils.CheckGLError("completed video mesh Render");
}
gl.GlFinish();
}
