Screenshot of the Month February 2012 [Winners announced!]

[Strong99]

And this month we have again two winners!
- mel with PSM, the Perspective Shadow Mapping algorithm
- Auria with SuperTuxKart: The Zen Garden Pond

[Old]
Vote now for the best screenshot of Februari 2012!
The poll will be active until March the 5th

Some pictures are not shown in their fullsize. Too view them fullsize please visit: To the gallery

mel - PSM, the Perspective Shadow Mapping algorithm


Auria - SuperTuxKart: The Zen Garden Pond


3DModelerMan - IcicleEd


desmoines - 3D Scene-Editor


wing64 - ARSA Framework - Train Station


wiedzmin112 - Atmospheric scattering, God Rays


ap369 - AGAME -Desert

Topic for the February screenshot entries!

Please submit here for the best screenshot for February 2011. You can submit until the 20th of February. Voting should start soon after that date.

Rules
- Only irrlicht renders allowed,
- Give images a good title and make clear what the title is,
- Make sure the image is available until the end of the competition,
- One image per project allowed,
- And some information about the project/scene,

Notes
- Please show a good quality image with a decent image size.

[Adler1337]

February

[Strong99]

You don't like the Dutch month notation?

I fixed them. Thank you.

[Mel]

PSM, the Perspective Shadow Mapping algorithm only with Irrlicht's tools in DirectX (Although, the implementation i've created allows to switch to Open GL fairly quick)



It is only the ideal case where the PSM algorithm works without modifications or odd alterations. (No singularities treated here) It is actually a small step towards the real end, which is Light Space Perspective Shadow Mapping.

I have removed the textures from the ground to make the shadows more obvious. A single shadow map that has 512x512 pixels of resolution, and it is filtered using Variance Shadow Mapping. The loss of resolution with the distance can be seen very clearly, And that is what the LiSPSM algorithm tries to solve, balancing the shadowmapping, and removing all the posible singularities and issues of the PSM original idea.

[wiedzmin112]

@Mel How far is light camera from your normal camera?

PS.Do you use directional light?

[Cube_]

nice.

[Mel]

This doesn't work exactly like the normal shadowmapping algorithm, it is in the same place as the view point and changes with it. It is set so the up vector of this "light camera" aims towards the light and thus, the shadowmap resolution gets bigger near the point of view and decreases with the distance. It behaves like a directional light.

I use a normal camera to focus all the important objects that cast shadows in the scene, and i get its view and projection matrices, and then, i transform it again with another orthogonal transformation, so i can see exactly the content of the (half, in DX)unit cube, and create the shadowmap there.

Pros: Near the light camera, the objects are bigger and the shadow map has a nice resolution there, and i can cover any distance, as the whole space the camera covers can get shadowed.

Cons, any object that goes beyond the volume of the light camera is clipped, and thus, this camera should be readjusted to take them into consideration. This shot has an orthogonal projection that goes beyond the limits of the camera space, for instance. The LiSPSM algorithm covers this issue, and it is what i am trying to solve right now.

[wiedzmin112]

How much fps you have?

[Mel]

I get the same performance as the standard shadow mapping algorithm. That is slower because of the opacity of the trees, but the render time maybe around 11 or 12 msec, or 83 fps.

[Auria]

Hi folks,

this is the first time our project (SuperTuxKart) enters this contest

SuperTuxKart : The Zen Garden Pond


This image uses the OpenGL renderer of irrlicht, and can be seen in SuperTuxKart (supertuxkart.net). The scene was modeled in blender and then exported to our B3D/XML-based scene format, then loaded back into irrlicht. This is a rather low-poly track (30000 polys total). This track was modeled and textured mainly by Jean-Manuel "Samuncle" Clémençon (samuncle.net), kudos to him for his great work!

[Cube_]

yay!
SUPERTUXKART! (Still <3 that game)

[Virion]

more and more quality screenshots are entering this contest!

[shadowslair]

Some actual colourful karts in the background would make it much better. What I see right now is- "Super Tux Kart" - pond, rock, path. Where are the karts?

[desmoines]

Title : 3D Scene-Editor
Graphic engine : IrrLicht
Sound engine : IrrKlang
GUI library : wxWidgets
Script engine : Lua

[3DModelerMan]

Here's a screenshot of my editor: IcicleEd (you'll need to click it to see the whole screenshot):

• Qt
  Icicle Engine (my framework built around Irrlicht)

Uploaded with ImageShack.us