Irrlicht Engine

never mind, solved it, it just the resolution is not supported with DX

When I create a DX device in fullscreen mode and flip dimensions to be in portrait (height > width), the console says "was not able to create DIRECT3D9 device" twice.

I have tried any combinations possible, DX/OGL, fullscr/windowed, landscape/portrait. Only this combination DX-fullscr-landscape ...

This is what i get from debugger

Unhandled exception at 0x100184ef in DynamicMesh.exe: 0xC0000005: Access violation reading location 0xbaadf00d.

and it breaks at line smgr->drawAll

So I think when I add new buffer to the mesh, somehow some pointers are lost therefore smgr can't access and draw

any help?

I have this problem where I need to create/edit/delete Meshbuffers in a Mesh based on some dynamic data.

The problem is this, after I create the MeshSceneNodefrom the intial Mesh, I can only edit/delete existing MeshBuffers but not add new buffers from new data, otherwise it crashes when smgr ...

The problem is fixed using Sudi's tip and fliped uv coord when driver is OGL. Thank you all

More observations:

- When calling another draw2DImage to draw the RT, both model and bg appear normal (non-flipped)

- I set all material types as EMT_SOLID (for both the model and ScreenQuad) to eliminate bugs, if any, from shaders (as I'm using IrrCg for shaders). The bg's still flipped while the ...

BlindSide wrote:This is a well known issue. RTT in OpenGL are flipped, so just flip your texcoords in the shaders (1.0 - texcoord.y) when you're working with them.

Then both the model and background are flipped together, but in this case, only the background is flipped. That's why I find it strange

The problem is still there when I use your current ScreenQuad. However, when I change the driver from OpenGL to DX9, all is fixed. As I prefer using OpenGL, any thoughts on how fix this bug on OpenGL?

Btw, I searched around forum and found that others had some kind of flipped texture with RTT ...

I'm testing RTT feature of Irrlicht to do some post-possessing fx and encounter this strange behavior of RTT.

This is normal render with code:

http://img413.imageshack.us/img413/7346/normalv.png

driver->beginScene();

driver->draw2DImage(BG, rect<s32>(0,0,renderSize.Width,renderSize.Height ...

Lonesome Ducky wrote:The only thing I can think of to do it like you want is not irrlicht related. You need to grab the desktop hdc with GetDC(0), then get the pixels around where you want to blend and blend them yourself.

Any sources do I need to look for? coz I'm not familiar with window programming. thanks

Ultimately I want to achieve the effect as below

[photoshopped]


in which you can change the alpha of the background no matter what color it is

any ideas?

I want to make the background of the Irrlicht view transparent so that I can see through any windows or desktop screen under Irrlicht window.

I modified the tutorial 14 (Win32 window) as followed:


...
SetWindowLong(hWnd, GWL_EXSTYLE, GetWindowLong(hWnd, GWL_EXSTYLE) | WS_EX_LAYERED ...

Never mind. I fixed it.

I pass the inverse of ETS_WORLD and use it to transform light position from world space back to object space. Now shading is correct

I implemented a simple per-fragment lighting shader with fixed light position and models' positions.

The render is correct until I rotate one of the model 180deg around Y-axis using setRotation(..). Then the shading on the rotated model is flipped as if the light was rotated as well.

I'm using ...