Can't use OglShadowShader in pygame

[EricSanchezok]

Hi everyone!

I constructed a scene featuring blood vessels and catheter, to which I added a LightManager, an OglShadowShader, and two types of lighting: a DirectionalLight and a SpotLight, the latter being attached to the end of a catheter. I employ Sofa.GUI to launch this scene, where the OglShadowShader functions effectively. However, when attempting to extract and render the image using pygame and SofaGL, as described in #3797 the resulting image turns out entirely black (with the light source off) or entirely white (with the light source on). What could be the reason for this issue?

This is the scenario when running in SofaGUI:

This is what it looks like in pygame:

This is part of my code:

    rootNode.addObject("LightManager", listening="1", shadows="1", softShadows="1")
    rootNode.addObject("OglShadowShader")
    rootNode.addObject("DirectionalLight", direction=[0,-1,0], shadowsEnabled="1", shadowTextureSize="2048")
    rootNode.addObject("InteractiveCamera", name="GlobalCamera", position=[0., 0., -50],
                            lookAt=[0,0,0], distance=0,
                            fieldOfView=45, zNear=0.1, zFar=500.0)  
    rootNode.addObject("InteractiveCamera", name="InternalCamera", position=[0., 0., -50],
                            lookAt=[0,0,0], distance=0,
                            fieldOfView=45, zNear=0.1, zFar=500.0) 

    rootNode.addObject("SpotLight", name="InternalSpotLight", color="white",
                            position=[50., 0., 0.],
                            direction=[1., 0., 0.],
                            lookat = "1", shadowsEnabled="1",
                            shadowTextureSize="2048", cutoff="30", exponent="0.05")

and

        visuVesselsNode = Geometry.addChild('visuVesselsNode')
        visuVesselsNode.addObject('MeshSTLLoader', filename=visual_path, flipNormals=False, triangulate=True, name='meshLoader')
        visuVesselsNode.addObject("TransformEngine", name="transformer", template="Vec3d", scale=scale, translation=translation, rotation=rotation, input_position="@meshLoader.position")
        visuVesselsNode.addObject('MechanicalObject', name="DOFs", position="@transformer.output_position")
        visuVesselsNode.addObject('BarycentricMapping', input='@../DOFs', output='@DOFs')

        realvisuVesselsNode = visuVesselsNode.addChild('realvisuVesselsNode')
        realvisuVesselsNode.addObject('OglModel',name="VisualOGL", src="@../meshLoader", color='red')
        realvisuVesselsNode.addObject('IdentityMapping', input="@../DOFs", output="@VisualOGL")
       

[hugtalbot]

Hey @EricSanchezok

Did you progress in anyway?
Sorry for keeping this topic pending. Maybe @fredroy would have an insight about this.

Cheers

[github-actions[bot]]

⚠️ ⚠️ ⚠️
@EricSanchezok
Feedback has been given to you by the project reviewers, however we have not received a response from you. Without further news in the coming weeks, this discussion will be automatically closed in order to keep this forum clean and fresh 🌱 Thank you for your understanding

[github-actions[bot]]

⚠️ ⚠️ ⚠️
@EricSanchezok
In accordance with our forum management policy, the last reply is more than 4 months old and is therefore closed. Our objective is to keep the forum up to date and offer the best support experience.

Please feel free to reopen it if the topic is still active by providing us with an update. Please feel free to open a new thread at any time - we'll be happy to help where and when we can.