Irrlicht Engine

Thanks, hendu

It looks like this is not simple problem as I thought. There are a few threads about this topic. People have already asked something like what I thought. Probably, I have to go with manipulating alphas in shaders at this stage.

jack_fantasy

Thanks, CuteAlien

I have tried EMT_TRANSPARENT_VERTEX_ALPHA with a custom vertex colour. I think EMT_TRANSPARENT_VERTEX_ALPHA only takes the vertex alpha into account, not the texture alpha.

I have tried combinations of EMT_TRANSPARENT_VERTEX_ALPHA, EMT_TRANSPARENT_ALPHA_CHANNEL and EMT ...

Thank you, hendu
For what you need, writing a shader is the simplest solution.

Right, I thought that could be done by a shader. I have a hierarchy of custom scene node classes (some of them already requiring a shader), if I need a unified way to create a fade out animation for my scene nodes. I ...

Hi, everyone

I have a set of image mesh scene nodes, their textures are loaded from translucent pngs (some parts may have 0.0 alpha other parts may have 1.0 alpha). I set their MaterialType to video::EMT_TRANSPARENT_ALPHA_CHANNEL. Image mesh scene nodes are rendered as expected.

My question is ...

Thanks, Nadro

Your suggestion work like charm! I didn't realize the default behavior of Texture->lock() downloads data from GPU. That's really cool!

jack_fantasy

I have a threaded video player class everytime needs to copy the latest frame image to the mesh scene node texture in the main thread:

FrameImagePtr = static_cast<s32*>(FrameImage->lock ());
TexturePtr = static_cast<s32*>(Texture->lock ());

memcpy(TexturePtr, FrameImagePtr, FrameImage ...