public Matrix4 CreateGuiProjectionMatrix(sd.Size dims)
{
Matrix4 ret = Matrix4.Identity;
ret.Row0.X = 2.0f / (float)dims.Width;
ret.Row1.Y = 2.0f / (float)dims.Height;
return(ret);
}
public Matrix4 CreateGuiViewMatrix(sd.Size dims, bool autoflip)
{
Matrix4 ret = Matrix4.Identity;
ret.Row1.Y = -1.0f;
ret.Row3.X = -(float)dims.Width * 0.5f;
ret.Row3.Y = (float)dims.Height * 0.5f;
if (autoflip)
{
if (_currRenderTarget == null)
{
}
else
{
//flip as long as we're not a final render target
ret.Row1.Y = 1.0f;
ret.Row3.Y *= -1;
}
}
return(ret);
}
public unsafe void SetPipelineUniformMatrix(PipelineUniform uniform, ref Matrix4 mat, bool transpose)
{
fixed(Matrix4 *pMat = &mat)
GL.UniformMatrix4((int)uniform.Sole.Opaque, 1, transpose, (float *)pMat);
}
public unsafe void SetPipelineUniformMatrix(PipelineUniform uniform, Matrix4 mat, bool transpose)
{
GL.UniformMatrix4((int)uniform.Sole.Opaque, 1, transpose, (float *)&mat);
}
public void PreMultiplyMatrix(Matrix4 value) { Top = value * Top; IsDirty = true; }
public void PostMultiplyMatrix(Matrix4 value) { Top = Top * value; IsDirty = true; }
public void Translate(float x, float y, float z) { PostMultiplyMatrix(Matrix4.CreateTranslation(x, y, z)); IsDirty = true; }
public void Translate(Vector3 trans) { PostMultiplyMatrix(Matrix4.CreateTranslation(trans)); IsDirty = true; }
/// <summary>
/// Clears the matrix stack and loads the specified value
/// </summary>
public void Clear(Matrix4 value)
{
stack.Clear();
Top = value;
IsDirty = true;
}
public void RotateAxis(float x, float y, float z, float degrees) { PostMultiplyMatrix(Matrix4.CreateFromAxisAngle(new Vector3(x, y, z), MathHelper.DegreesToRadians(degrees))); IsDirty = true; }
public void Scale(float x, float y, float z) { PostMultiplyMatrix(Matrix4.CreateScale(x, y, z)); IsDirty = true; }
public void Scale(Vector2 scale) { PostMultiplyMatrix(Matrix4.CreateScale(scale.X, scale.Y, 1)); IsDirty = true; }
public void RotateAxis(Vector3 axisRotation, float angle) { PostMultiplyMatrix(Matrix4.CreateFromAxisAngle(axisRotation, angle)); IsDirty = true; }
public void Pop() { Top = stack.Pop(); IsDirty = true; }
public void LoadIdentity() { Top = Matrix4.Identity; IsDirty = true; }
public void LoadMatrix(Matrix4 value) { Top = value; IsDirty = true; }
public void RotateZ(float degrees) { PostMultiplyMatrix(Matrix4.CreateRotationZ(MathHelper.DegreesToRadians(degrees))); IsDirty = true; }
public MatrixStack(Matrix4 matrix) { LoadMatrix(matrix); }
