Method render_

source/MRViewer/MRRenderVolumeObject.cpp:102–233

}

void RenderVolumeObject::render_( const ModelBaseRenderParams& renderParams, const ModelRenderParams* nonPickerParams, unsigned geomId )
{
    if ( !getViewerInstance().isGLInitialized() )
    {
        objVoxels_->resetDirty();
        return;
    }
    update_();

    bool picker = geomId != unsigned( ~0 );
    // Initialize uniform
    if ( picker )
    {
        GL_EXEC( glViewport( ( GLsizei )0, ( GLsizei )0,
            ( GLsizei )renderParams.viewport.z, ( GLsizei )renderParams.viewport.w ) );
    }
    else
    {
        GL_EXEC( glViewport( ( GLsizei )renderParams.viewport.x, ( GLsizei )renderParams.viewport.y,
            ( GLsizei )renderParams.viewport.z, ( GLsizei )renderParams.viewport.w ) );
    }

    if ( objVoxels_->getVisualizeProperty( VisualizeMaskType::DepthTest, renderParams.viewportId ) )
    {
        GL_EXEC( glEnable( GL_DEPTH_TEST ) );
    }
    else
    {
        GL_EXEC( glDisable( GL_DEPTH_TEST ) );
    }

    GL_EXEC( glEnable( GL_BLEND ) );
    GL_EXEC( glBlendFuncSeparate( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA ) );

    bindVolume_( picker );
    auto shader = picker ? GLStaticHolder::getShaderId( GLStaticHolder::VolumePicker ) :
        GLStaticHolder::getShaderId( GLStaticHolder::Volume );

    GL_EXEC( glUniformMatrix4fv( glGetUniformLocation( shader, "model" ), 1, GL_TRUE, renderParams.modelMatrix.data() ) );
    GL_EXEC( glUniformMatrix4fv( glGetUniformLocation( shader, "view" ), 1, GL_TRUE, renderParams.viewMatrix.data() ) );
    GL_EXEC( glUniformMatrix4fv( glGetUniformLocation( shader, "proj" ), 1, GL_TRUE, renderParams.projMatrix.data() ) );
    if ( !picker )
    {
        if ( nonPickerParams->normMatrixPtr )
        {
            GL_EXEC( glUniformMatrix4fv( glGetUniformLocation( shader, "normal_matrix" ), 1, GL_TRUE, nonPickerParams->normMatrixPtr->data() ) );
        }
        GL_EXEC( glUniform3fv( glGetUniformLocation( shader, "ligthPosEye" ), 1, &nonPickerParams->lightPos.x ) );
        GL_EXEC( glUniform1f( glGetUniformLocation( shader, "specExp" ), objVoxels_->getShininess() ) );
        GL_EXEC( glUniform1f( glGetUniformLocation( shader, "specularStrength" ), objVoxels_->getSpecularStrength() ) );
        float ambient = objVoxels_->getAmbientStrength() * ( objVoxels_->isSelected() ? SceneSettings::get( SceneSettings::FloatType::AmbientCoefSelectedObj ) : 1.0f );
        GL_EXEC( glUniform1f( glGetUniformLocation( shader, "ambientStrength" ), ambient ) );
    }
    GL_EXEC( glUniform1i( glGetUniformLocation( shader, "useClippingPlane" ),
        objVoxels_->globalClippedByPlane( renderParams.viewportId ) ) );
    GL_EXEC( glUniform4f( glGetUniformLocation( shader, "clippingPlane" ),
        renderParams.clipPlane.n.x, renderParams.clipPlane.n.y,
        renderParams.clipPlane.n.z, renderParams.clipPlane.d ) );