Drawing 2D with SlimDX

c# 2d direct3d slimdx
mnn picture mnn · May 8, 2009 · Viewed 8.1k times · Source

Hello I'm having trouble rendering correctly sprite with SlimDX. It draws a little scaled just like .NET Drawing DrawImageUnscaled does. I'm not using any transformations.

Init:

Vector2 position;
Sprite sprite;
Size size;
Texture texture;
sprite = new Sprite(Device);
string filename = /*some bitmap*/;
using (Image b = Bitmap.FromFile(filename))
  size = b.Size;

position = new Vector2(550, 230);
texture = Texture.FromFile(Device, filename);

Rendering:

Device.Clear(ClearFlags.Target, Color.Black, 1.0f, 0);
Device.BeginScene();
sprite.Begin(SpriteFlags.None);
sprite.Draw(texture, new Vector3(size.Width / 2, size.Height / 2, 0), new Vector3(position, 0), Color.White);
sprite.End();
Device.EndScene();

EDIT: If you don't know how to imagine the wrong rendering, here is what I get rendered and reference (ignore that white color, it's just transparent PNG). Notice how the first image is scaled Wrong Correct

Answer

Scoregraphic picture Scoregraphic · May 9, 2009

Is it possible that your graphic card has problems drawing NPOT-textures (non-power of two). If so, increase the texture size to the next POT. This resolved many drawing issues for me (using SlimDX too).

Btw...I also used SlimDX for 2D rendering, but haven't made use of sprites, but draw all the things as "primitives" and using a vertex buffer. Maybe this could also be an option

Related questions

How do I draw simple graphics in C#?

I just want to draw simple 2D objects like circle, line, square etc in C#. How do I do that? Back in the Turbo C++ days I remember initializing some graphics library for doing the same. Do I need to …

Read More
Flipping a 2D Sprite Animation in Unity 2D

I've got a quick question regarding 2D Sprite animations that I haven't been able to find specifically answered anywhere: I have a sprite with walk animations to the right. However, I obviously want to flip the animation to the left …

Read More
How to get 1D column array and 1D row array from 2D array? (C# .NET)

i have double[,] Array;. Is it possible to get something like double[] ColumnArray0 = Array[0,].toArray() and double[] RowArray1 = Array[,1].toArray() without making a copy of every elemet(using for)? Thanks.

Read More