combinaison of both dithering and texturing. Note that this is at 15MHz. 6MHz is not *that* slow, but the screen is  faster and look better like this 



and thanks Xeda !

That looks really good. It seems like a great effect to make a dark environement.
Would it be hard to do lights at a different position as the camera, and multiple lights?

Quote from: ben_g on January 02, 2014, 11:28:18 am

That looks really good. It seems like a great effect to make a dark environement.
Would it be hard to do lights at a different position as the camera, and multiple lights?

well, with the way I calculate the illumination, only directionnal light can be defined ; but mutiple and different light are not so difficult 

would it be slow/hard to recalculate the light direction based of a certain point for every vertex or for every 4*4 pixel area?

This totally looks impressive. Would it be practical inside a game?

Quote from: TheMachine02 on January 02, 2014, 11:31:46 am

Quote from: ben_g on January 02, 2014, 11:28:18 am

That looks really good. It seems like a great effect to make a dark environement.
Would it be hard to do lights at a different position as the camera, and multiple lights?

well, with the way I calculate the illumination, only directionnal light can be defined ; but mutiple and different light are not so difficult 

would it be slow/hard to recalculate the light direction based of a certain point for every vertex or for every 4*4 pixel area?

I am not sure for what you mean, but if you think of a sort of per-vertex lightning ; a modification of the texture routine allow me to do some sort of gouraud shading.

Would it be practical inside a game?

I guess it would be better than texture, as it is faster ; and a bit cleaner 

anyway, since cliping reallly annoy me, I decide to go to the hard way    perfect 3D clipping : many improvement expected :
-2D commands won't need clipping anymore
-I am thinking of a new way to do it, so it *may* be faster than the actual clipping routine
-all overflow due to this will be remove
-command will clip in a much more agressive way, cutting lot more of geometry 

per vertex lighting wouldn't be *that* slow. I guess you can use a vertex shader (or geometry shader) / combine with a texture shader to achieve per vertex lightning. I could also implement this directly in the lib, but the total weight will become even more big  . Shader is good though.

well backface culling work well, but sorting is pretty difficult due to data structure - and so I have a buggy routine, but it doesn't work 

Z-ordering isn't really that hard, but it requires caching rotated vertices. I can help you with that as it's how I do it with AxeJh3D.