private static void DrawTexturedRect(Box2D rect, Texture tex, Box2D texCoords)
{
tex.BeginUse();
GL.Begin(PrimitiveType.Quads);
GL.TexCoord2(texCoords.X, texCoords.Y); GL.Vertex2(rect.X, rect.Y);
GL.TexCoord2(texCoords.MaxX, texCoords.Y); GL.Vertex2(rect.MaxX, rect.Y);
GL.TexCoord2(texCoords.MaxX, texCoords.MaxY); GL.Vertex2(rect.MaxX, rect.MaxY);
GL.TexCoord2(texCoords.X, texCoords.MaxY); GL.Vertex2(rect.X, rect.MaxY);
GL.End();
tex.EndUse();
}
static void DrawSprite(float x, float y, Texture tex, float radius = 0.5f, float repeat = 1.0f)
{
tex.BeginUse();
GL.Color3(Color.White);
GL.Begin(PrimitiveType.Quads);
GL.TexCoord2(0.0f, 0.0f); GL.Vertex2(x - radius, y - radius);
GL.TexCoord2(repeat, 0.0f); GL.Vertex2(x + radius, y - radius);
GL.TexCoord2(repeat, repeat); GL.Vertex2(x + radius, y + radius);
GL.TexCoord2(0.0f, repeat); GL.Vertex2(x - radius, y + radius);
GL.End();
tex.EndUse();
}
private void DrawTexturedRect(Box2D Rectangle, Texture tex)
{
GL.Color3(Color.White);
tex.BeginUse();
GL.Begin(PrimitiveType.Quads);
GL.TexCoord2(0.0f, 0.0f); GL.Vertex2(Rectangle.X, Rectangle.Y);
GL.TexCoord2(1.0f, 0.0f); GL.Vertex2(Rectangle.MaxX, Rectangle.Y);
GL.TexCoord2(1.0f, 1.0f); GL.Vertex2(Rectangle.MaxX, Rectangle.MaxY);
GL.TexCoord2(0.0f, 1.0f); GL.Vertex2(Rectangle.X, Rectangle.MaxY);
GL.End();
tex.EndUse();
}
public static void SaveToFile(Texture texture, string fileName)
{
var format = System.Drawing.Imaging.PixelFormat.Format32bppArgb;
texture.BeginUse();
using (Bitmap bmp = new Bitmap(texture.Width, texture.Height))
{
BitmapData data = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height), System.Drawing.Imaging.ImageLockMode.WriteOnly, format);
GL.GetTexImage(TextureTarget.Texture2D, 0, selectInputPixelFormat(format), PixelType.UnsignedByte, data.Scan0);
bmp.UnlockBits(data);
texture.EndUse();
bmp.RotateFlip(RotateFlipType.RotateNoneFlipY);
bmp.Save(fileName);
}
}
public static void SaveToFile(Texture texture, string fileName)
{
var format = System.Drawing.Imaging.PixelFormat.Format32bppArgb;
texture.BeginUse();
using (Bitmap bmp = new Bitmap(texture.Width, texture.Height))
{
BitmapData data = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height), System.Drawing.Imaging.ImageLockMode.WriteOnly, format);
GL.GetTexImage(TextureTarget.Texture2D, 0, selectInputPixelFormat(format), PixelType.UnsignedByte, data.Scan0);
bmp.UnlockBits(data);
texture.EndUse();
bmp.RotateFlip(RotateFlipType.RotateNoneFlipY);
bmp.Save(fileName);
}
}
private static void DrawTexturedRect(Box2D Rect, Texture tex)
{
//the texture has to be enabled before use
tex.BeginUse();
GL.Begin(PrimitiveType.Quads);
//when using textures we have to set a texture coordinate for each vertex
//by using the TexCoord command BEFORE the Vertex command
GL.TexCoord2(0.0f, 0.0f); GL.Vertex2(Rect.X, Rect.Y);
GL.TexCoord2(1.0f, 0.0f); GL.Vertex2(Rect.MaxX, Rect.Y);
GL.TexCoord2(1.0f, 1.0f); GL.Vertex2(Rect.MaxX, Rect.MaxY);
GL.TexCoord2(0.0f, 1.0f); GL.Vertex2(Rect.X, Rect.MaxY);
GL.End();
//the texture is disabled, so no other draw calls use this texture
tex.EndUse();
}
public static Texture FromBitmap(Bitmap bitmap)
{
Texture texture = new Texture();
texture.FilterTrilinear();
texture.BeginUse();
//todo: 16bit channels
using (Bitmap bmp = new Bitmap(bitmap))
{
bmp.RotateFlip(RotateFlipType.RotateNoneFlipY);
BitmapData bmpData = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height), ImageLockMode.ReadOnly, bmp.PixelFormat);
PixelInternalFormat internalFormat = selectInternalPixelFormat(bmp.PixelFormat);
OpenTK.Graphics.OpenGL.PixelFormat inputPixelFormat = selectInputPixelFormat(bmp.PixelFormat);
texture.LoadPixels(bmpData.Scan0, bmpData.Width, bmpData.Height, internalFormat, inputPixelFormat, PixelType.UnsignedByte);
bmp.UnlockBits(bmpData);
}
texture.EndUse();
return texture;
}
public static Texture FromBitmap(Bitmap bitmap)
{
Texture texture = new Texture();
texture.BeginUse();
texture.FilterTrilinear();
//todo: 16bit channels
using (Bitmap bmp = new Bitmap(bitmap))
{
bmp.RotateFlip(RotateFlipType.RotateNoneFlipY);
BitmapData bmpData = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height), ImageLockMode.ReadOnly, bmp.PixelFormat);
PixelInternalFormat internalFormat = selectInternalPixelFormat(bmp.PixelFormat);
OpenTK.Graphics.OpenGL.PixelFormat inputPixelFormat = selectInputPixelFormat(bmp.PixelFormat);
texture.LoadPixels(bmpData.Scan0, bmpData.Width, bmpData.Height, internalFormat, inputPixelFormat, PixelType.UnsignedByte);
bmp.UnlockBits(bmpData);
}
texture.EndUse();
return(texture);
}
private static void DrawTexturedRect(Box2D rect, Texture tex, Box2D texCoords)
{
tex.BeginUse();
rect.DrawTexturedRect(texCoords);
tex.EndUse();
}
