Hi, Esenthel supports (on the fly) the creation of cubemap image, for the actual world? The idea was to at the start of the scene, create the cubemap, that will then be assigned to materials for use as reflection.

Thanks!

For having the image in the cache:
CACHE_MODE Cache = Images.mode( CACHE_ALL_DUMMY );
ImagePtr NewImage = Images.ptrRequire( UID( ).randomize( ) );
Images.mode( Cache );

For creating a cubemap image:
NewImage->create3D( ... );

For getting/setting pixels:
NewImage->lock();
NewImage->color3D( ... );
NewImage->unLock();
For this method, I'm not entirely sure how the coordinate system works in relation to which face is being accessed. Try to call lock/unlock only once.

For setting the reflection map to a material:
Mat->reflection_map = NewImage;
Mat->validate();

Hi @Rubeus, thanks for your reply!

I've already tried that but with no luck... i just got a black image...


Any idea?

Hmm, i was looking into this in the wrong way... my doubt here is how do i get Color values so i can edit the image with them?

NewImage->color3D(1, 1, 1); <-- gets the color from position 1, 1, 1
NewImage->color3D(1, 1, 1, BLUE); <-- sets the color at position 1, 1, 1 to blue

You will need to loop through every pixel and set it.

(09-10-2014 05:39 PM)Rubeus Wrote:  NewImage->color3D(1, 1, 1); <-- gets the color from position 1, 1, 1
NewImage->color3D(1, 1, 1, BLUE); <-- sets the color at position 1, 1, 1 to blue

You will need to loop through every pixel and set it.

Yes i know, but how do i get the 3D world pixel color values to be set in the image?

Quote:Yes i know, but how do i get the 3D world pixel color values to be set in the image?

You can screen capture N/S/W/E/up/down directions from cam position and then apply it to the relevant 3d image cube face direction.

(09-10-2014 08:06 PM)SamerK Wrote:  

Quote:Yes i know, but how do i get the 3D world pixel color values to be set in the image?

You can screen capture N/S/W/E/up/down directions from cam position and then apply it to the relevant 3d image cube face direction.

Ok, i see what your point... i'm trying to use Renderer.getBackBuffer() for that, since it returns a reference to an "Image" obj, as i need in this case.

I'll post my findings here in this thread!

Thanks!

Hi,

Cubemap is not Image.create3D but Image.createCube,
and for setting pixels of a cube face you specify the 'cube_face' param in the lock method

(09-11-2014 04:03 AM)Esenthel Wrote:  Hi,

Cubemap is not Image.create3D but Image.createCube,
and for setting pixels of a cube face you specify the 'cube_face' param in the lock method

Code:

Bool     lock    (LOCK_MODE lock=LOCK_READ_WRITE, Int mip_map=0, DIR_ENUM cube_face=DIRE_RIGHT) ; //   lock image for editing specified 'mip_map', this needs to be called before manual setting/getting pixels/colors on hardware images (IMAGE_SOFT doesn't need locking), 'cube_face'=desired cube face (this is used only for IMAGE_CUBE modes)

Hi, thanks for the clarification!

I've made progress by creating each image (and exporting it) for each cube face... they're fine, since i've imported to Esenthel editor image (as cube texture), and it looks Ok

But for creating the cubemap, instead of using the pixel color set, is it possible to copy each image for each face of the cubemap?

I was able to test:


It works like expected, setting /copyingthe same image (someimg) for each cube face. Is there any method that allows this, but allows also specifying for which cubeface we want to copy the image?

Thanks!

You should use a smaller render target for rendering each cube side, something like 256x256 or 512, also make sure to set the camera fov to 90° and disable any advanced effects like DOF etc. (See the render to texture tutorial on how to render to a custom buffer).

Just an idea, maybe make a 6 by 1 sized buffer (image) as your render target, then by manipulating the viewRect render all the sides onto it, and then use buffer.toCube() to convert it to a cubemap in one go..

..but the right solution would be to:
@Esenthel, could you add the option of setting a cubemap face as the render target? This way we could render realtime cubemaps more efficiently and with less hassle.

Hi, finally i managed to do it... for each image (each cube face) i have something like this (this is for DIR_UP cubemap image):


Thanks to all of your input guys

(09-11-2014 12:52 PM)cvieira Wrote:  Is there any method that allows this, but allows also specifying for which cubeface we want to copy the image?

Hi,

I think you can use Image.injectMipMap for that

para Wrote:@Esenthel, could you add the option of setting a cubemap face as the render target? This way we could render realtime cubemaps more efficiently and with less hassle

Added to the roadmap.