Method renderFrame

source/MaterialXGraphEditor/RenderView.cpp:743–861

}

void RenderView::renderFrame()
{
    // Initialize OpenGL state
    glDisable(GL_BLEND);
    glEnable(GL_DEPTH_TEST);
    glDepthMask(GL_TRUE);
    glDepthFunc(GL_LEQUAL);
    glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
    glDisable(GL_CULL_FACE);
    glDisable(GL_FRAMEBUFFER_SRGB);

    // Update lighting state.
    _lightHandler->setLightTransform(mx::Matrix44::createRotationY(_lightRotation / 180.0f * PI));

    // Update shadow state.
    mx::ShadowState shadowState;
    mx::NodePtr dirLight = _lightHandler->getFirstLightOfCategory(DIR_LIGHT_NODE_CATEGORY);
    if (_genContext.getOptions().hwShadowMap && dirLight)
    {
        mx::ImagePtr shadowMap = getShadowMap();
        if (shadowMap)
        {
            shadowState.shadowMap = shadowMap;
            shadowState.shadowMatrix = _viewCamera->getWorldMatrix().getInverse() *
                                       _shadowCamera->getWorldViewProjMatrix();
        }
        else
        {
            _genContext.getOptions().hwShadowMap = false;
        }
    }

    // Initialize viewport render.
    if (!_renderFrame ||
        _renderFrame->getWidth() != (unsigned int) _viewWidth ||
        _renderFrame->getHeight() != (unsigned int) _viewHeight)
    {
        _renderFrame = mx::GLFramebuffer::create((unsigned int) _viewWidth, (unsigned int) _viewHeight,
                                                 4, mx::Image::BaseType::UINT8);
    }

    _renderFrame->bind();

    mx::Color3 screenColor(mx::DEFAULT_SCREEN_COLOR_SRGB);
    glClearColor(screenColor[0], screenColor[1], screenColor[2], 1.0f);
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
    glEnable(GL_FRAMEBUFFER_SRGB);

    // Enable backface culling if requested.
    if (!_renderDoubleSided)
    {
        glEnable(GL_CULL_FACE);
        glCullFace(GL_BACK);
    }

    // Opaque pass
    for (const auto& assignment : _materialAssignments)
    {