Light / material problem...

[Mobius]

I have a problem with light/material... =(

I created a simple custom scene node.

I added a light:
light = scene_manager->addLightSceneNode(0, camera_position, SColorf(0.3f, 0.3f, 0.3f));

And I used a material with these parameters:
material.AmbientColor = SColor(255, 20, 20, 20);
material.DiffuseColor = SColor(255, 20, 20, 20);
material.EmissiveColor = SColor(255, 20, 20, 20);

With OpenGL I have this result:



But with Direct3D8/9:



What is the problem?
Is it "normal"?
Maybe I forgot something in my code... =(


Thanx!

[Vox]

It is a problem with D3D renderer.

Try this (in setRenderStates3DMode):

Code: Select all

       if(ResetRenderStates)
       {
          pID3DDevice->SetRenderState(D3DRS_DIFFUSEMATERIALSOURCE, D3DMCS_MATERIAL);
          pID3DDevice->SetRenderState(D3DRS_AMBIENTMATERIALSOURCE, D3DMCS_MATERIAL);
          pID3DDevice->SetRenderState(D3DRS_SPECULARMATERIALSOURCE, D3DMCS_MATERIAL);
          pID3DDevice->SetRenderState(D3DRS_EMISSIVEMATERIALSOURCE, D3DMCS_MATERIAL);
       } :

[Mobius]

Great, it works! =)

Thanks!!

[Guest]

does that mean that we need to compile the engine with tese lines? or can we apply them directly in our own program?

[Mobius]

can we apply them directly in our own program?

I am not sure...
Anyway, I recompiled the engine =)

[Guest]

Is this "problem" because D3D enables specular by default or something? Is that what you are seeing in the DX screenshot? (specular reflection when none specified) - or is it bad lighting?

[Vox]

Is this "problem" because D3D enables specular by default or something?

It is a problem because D3D doesn't take material source while shading triangles. It takes only only information from vertex (like color) into account.

This problem is reported before on this forum. Somehow, Niko missed that.

[Guest]

hum, i'm not sure it even takes color informations.
i have a ms3D map created with milkshape of course.
i imported it to irrlicht, results are:
- opengl: color rendered as i set them into my ms3D but alpha values of materials are not loaded. (even if i try to set the alpha values directly in irrlicht, there is a problem and my map is whole black with some bad triangle we can looked when the camera moves even if i set up a light)

- directx: no problem excepts colors are not loaded, my map is whole white if i don't set up a light

i think a patch could be useful for users who don't want to recompile the engine (i don't want to install DX SDK in order to compile the engine)