Esempi in C++ (Cpp) per Hdx_UnitTestDelegate::SetCamera

Esempio n. 1

File: testHdxIdRender.cpp Progetto: JT-a/USD

void
My_TestGLDrawing::
DrawScene(PickParam const * pickParam)
{
    int width = GetWidth(), height = GetHeight();

    GfMatrix4d viewMatrix = GetViewMatrix();

    GfFrustum frustum = GetFrustum();
    GfVec4d viewport(0, 0, width, height);

    if (pickParam) {
        frustum = frustum.ComputeNarrowedFrustum(
            GfVec2d((2.0 * pickParam->location[0]) / width - 1.0,
                    (2.0 * (height-pickParam->location[1])) / height - 1.0),
            GfVec2d(1.0 / width, 1.0 / height));
        viewport = pickParam->viewport;
    }

    GfMatrix4d projMatrix = frustum.ComputeProjectionMatrix();
    _delegate->SetCamera(viewMatrix, projMatrix);

    glViewport(viewport[0], viewport[1], viewport[2], viewport[3]);

    HdTaskSharedPtrVector tasks;
    SdfPath renderSetupTask("/renderSetupTask");
    SdfPath renderTask("/renderTask");
    tasks.push_back(_delegate->GetRenderIndex().GetTask(renderSetupTask));
    tasks.push_back(_delegate->GetRenderIndex().GetTask(renderTask));

    HdxRenderTaskParams param
        = _delegate->GetTaskParam(
            renderSetupTask, HdTokens->params).Get<HdxRenderTaskParams>();
    param.enableIdRender = (pickParam != NULL);
    param.viewport = viewport;
    _delegate->SetTaskParam(renderSetupTask, HdTokens->params, VtValue(param));


    glEnable(GL_DEPTH_TEST);

    glBindVertexArray(vao);

    _engine.Execute(_delegate->GetRenderIndex(), tasks);

    glBindVertexArray(0);
}