public void Draw(Matrix4x4 viewProjection)
{
if (!DrawGizmo)
{
return;
}
bool upside = Orientation == GizmoOrientation.UpsideDown;
_device.SetRasterizerState(_device.RasterizerStates.CullNone);
var solidEffect = _effect;
GizmoMode highlight = _mode == GizmoMode.None ? _hoveredMode : _mode;
// Rotation
if (SupportRotationX | SupportRotationY | SupportRotationZ)
{
// Setup torus model
float requiredTorusRadius = LineThickness * 0.5f / Size;
if (_torusRadius != requiredTorusRadius)
{
_torus?.Dispose();
_torus = GeometricPrimitive.Torus.New(_device, 1.0f, requiredTorusRadius, 48, _lineRadiusTesselation);
_torusRadius = requiredTorusRadius;
}
_torus.SetupForRendering(_device);
// Rotation Y
if (SupportRotationY)
{
var model = Matrix4x4.CreateScale(Size * 2.0f) *
RotateMatrixY *
Matrix4x4.CreateTranslation(Position);
solidEffect.Parameters["ModelViewProjection"].SetValue((model * viewProjection).ToSharpDX());
solidEffect.Parameters["Color"].SetValue(_yAxisColor + (highlight == GizmoMode.RotateY ? _hoveredAddition : new Vector4()));
solidEffect.CurrentTechnique.Passes[0].Apply();
_device.DrawIndexed(PrimitiveType.TriangleList, _torus.IndexBuffer.ElementCount);
}
// Rotation X
if (SupportRotationX)
{
var model = Matrix4x4.CreateScale(Size * 2.0f) *
Matrix4x4.CreateRotationZ((float)Math.PI / 2.0f) *
RotateMatrixX *
Matrix4x4.CreateTranslation(Position);
solidEffect.Parameters["ModelViewProjection"].SetValue((model * viewProjection).ToSharpDX());
solidEffect.Parameters["Color"].SetValue(_xAxisColor + (highlight == GizmoMode.RotateX ? _hoveredAddition : new Vector4()));
solidEffect.CurrentTechnique.Passes[0].Apply();
_device.DrawIndexed(PrimitiveType.TriangleList, _torus.IndexBuffer.ElementCount);
}
// Rotation Z
if (SupportRotationZ)
{
var model = Matrix4x4.CreateScale(Size * 2.0f) *
Matrix4x4.CreateRotationX((float)Math.PI / 2.0f) *
RotateMatrixZ *
Matrix4x4.CreateTranslation(Position);
solidEffect.Parameters["ModelViewProjection"].SetValue((model * viewProjection).ToSharpDX());
solidEffect.Parameters["Color"].SetValue(_zAxisColor + (highlight == GizmoMode.RotateZ ? _hoveredAddition : new Vector4()));
solidEffect.CurrentTechnique.Passes[0].Apply();
_device.DrawIndexed(PrimitiveType.TriangleList, _torus.IndexBuffer.ElementCount);
}
}
// Scale
if (SupportScale)
{
_cylinder.SetupForRendering(_device);
// X axis
{
var model = Matrix4x4.CreateTranslation(new Vector3(0.0f, 0.5f, 0.0f)) *
Matrix4x4.CreateScale(new Vector3(LineThickness * 1.1f, (upside ? -Size : Size) / 2.0f, LineThickness * 1.1f)) *
Matrix4x4.CreateRotationZ(-(float)Math.PI / 2.0f) *
Matrix4x4.CreateTranslation(Position);
solidEffect.Parameters["ModelViewProjection"].SetValue((model * viewProjection).ToSharpDX());
solidEffect.Parameters["Color"].SetValue(_xAxisColor + (highlight == GizmoMode.ScaleX ? _hoveredAddition : new Vector4()));
solidEffect.CurrentTechnique.Passes[0].Apply();
_device.DrawIndexed(PrimitiveType.TriangleList, _cylinder.IndexBuffer.ElementCount);
}
// Y axis
{
var model = Matrix4x4.CreateTranslation(new Vector3(0.0f, 0.5f, 0.0f)) *
Matrix4x4.CreateScale(new Vector3(LineThickness * 1.1f, (upside ? -Size : Size) / 2.0f, LineThickness * 1.1f)) *
Matrix4x4.CreateTranslation(Position);
solidEffect.Parameters["ModelViewProjection"].SetValue((model * viewProjection).ToSharpDX());
solidEffect.Parameters["Color"].SetValue(_yAxisColor + (highlight == GizmoMode.ScaleY ? _hoveredAddition : new Vector4()));
solidEffect.CurrentTechnique.Passes[0].Apply();
_device.DrawIndexed(PrimitiveType.TriangleList, _cylinder.IndexBuffer.ElementCount);
}
// Z axis
{
var model = Matrix4x4.CreateTranslation(new Vector3(0.0f, 0.5f, 0.0f)) *
Matrix4x4.CreateScale(new Vector3(LineThickness * 1.1f, (upside ? -Size : Size) / 2.0f, LineThickness * 1.1f)) *
Matrix4x4.CreateRotationX(-(float)Math.PI / 2.0f) *
Matrix4x4.CreateTranslation(Position);
solidEffect.Parameters["ModelViewProjection"].SetValue((model * viewProjection).ToSharpDX());
solidEffect.Parameters["Color"].SetValue(_zAxisColor + (highlight == GizmoMode.ScaleZ ? _hoveredAddition : new Vector4()));
solidEffect.CurrentTechnique.Passes[0].Apply();
_device.DrawIndexed(PrimitiveType.TriangleList, _cylinder.IndexBuffer.ElementCount);
}
_cube.SetupForRendering(_device);
// X axis scale
{
var model = Matrix4x4.CreateScale(ScaleCubeSize) *
Matrix4x4.CreateTranslation(Position + Vector3.UnitX * (upside ? -Size : Size) / 2.0f);
solidEffect.Parameters["ModelViewProjection"].SetValue((model * viewProjection).ToSharpDX());
solidEffect.Parameters["Color"].SetValue(_xAxisColor + (highlight == GizmoMode.ScaleX ? _hoveredAddition : new Vector4()));
solidEffect.CurrentTechnique.Passes[0].Apply();
_device.DrawIndexed(PrimitiveType.TriangleList, _cube.IndexBuffer.ElementCount);
}
// Y axis scale
{
var model = Matrix4x4.CreateScale(ScaleCubeSize) *
Matrix4x4.CreateTranslation(Position + Vector3.UnitY * (upside ? -Size : Size) / 2.0f);
solidEffect.Parameters["ModelViewProjection"].SetValue((model * viewProjection).ToSharpDX());
solidEffect.Parameters["Color"].SetValue(_yAxisColor + (highlight == GizmoMode.ScaleY ? _hoveredAddition : new Vector4()));
solidEffect.CurrentTechnique.Passes[0].Apply();
_device.DrawIndexed(PrimitiveType.TriangleList, _cube.IndexBuffer.ElementCount);
}
// Z axis scale
{
var model = Matrix4x4.CreateScale(ScaleCubeSize) *
Matrix4x4.CreateTranslation(Position - Vector3.UnitZ * (upside ? -Size : Size) / 2.0f);
solidEffect.Parameters["ModelViewProjection"].SetValue((model * viewProjection).ToSharpDX());
solidEffect.Parameters["Color"].SetValue(_zAxisColor + (highlight == GizmoMode.ScaleZ ? _hoveredAddition : new Vector4()));
solidEffect.CurrentTechnique.Passes[0].Apply();
_device.DrawIndexed(PrimitiveType.TriangleList, _cube.IndexBuffer.ElementCount);
}
}
// Translation
{
_cylinder.SetupForRendering(_device);
// X axis
if (SupportTranslateX)
{
var model = Matrix4x4.CreateTranslation(new Vector3(0.0f, 0.5f, 0.0f)) *
Matrix4x4.CreateScale(new Vector3(LineThickness, (upside ? -Size : Size) * _arrowHeadOffsetMultiplier, LineThickness)) *
Matrix4x4.CreateRotationZ(-(float)Math.PI / 2.0f) *
Matrix4x4.CreateTranslation(Position);
solidEffect.Parameters["ModelViewProjection"].SetValue((model * viewProjection).ToSharpDX());
solidEffect.Parameters["Color"].SetValue(_xAxisColor + (highlight == GizmoMode.TranslateX ? _hoveredAddition : new Vector4()));
solidEffect.CurrentTechnique.Passes[0].Apply();
_device.DrawIndexed(PrimitiveType.TriangleList, _cylinder.IndexBuffer.ElementCount);
}
// Y axis
if (SupportTranslateY)
{
var model = Matrix4x4.CreateTranslation(new Vector3(0.0f, 0.5f, 0.0f)) *
Matrix4x4.CreateScale(new Vector3(LineThickness, (upside ? -Size : Size) * _arrowHeadOffsetMultiplier, LineThickness)) *
Matrix4x4.CreateTranslation(Position);
solidEffect.Parameters["ModelViewProjection"].SetValue((model * viewProjection).ToSharpDX());
solidEffect.Parameters["Color"].SetValue(_yAxisColor + (highlight == GizmoMode.TranslateY ? _hoveredAddition : new Vector4()));
solidEffect.CurrentTechnique.Passes[0].Apply();
_device.DrawIndexed(PrimitiveType.TriangleList, _cylinder.IndexBuffer.ElementCount);
}
// Z axis
if (SupportTranslateZ)
{
var model = Matrix4x4.CreateTranslation(new Vector3(0.0f, 0.5f, 0.0f)) *
Matrix4x4.CreateScale(new Vector3(LineThickness, (upside ? -Size : Size) * _arrowHeadOffsetMultiplier, LineThickness)) *
Matrix4x4.CreateRotationX(-(float)Math.PI / 2.0f) *
Matrix4x4.CreateTranslation(Position);
solidEffect.Parameters["ModelViewProjection"].SetValue((model * viewProjection).ToSharpDX());
solidEffect.Parameters["Color"].SetValue(_zAxisColor + (highlight == GizmoMode.TranslateZ ? _hoveredAddition : new Vector4()));
solidEffect.CurrentTechnique.Passes[0].Apply();
_device.DrawIndexed(PrimitiveType.TriangleList, _cylinder.IndexBuffer.ElementCount);
}
_cone.SetupForRendering(_device);
// X axis translation
if (SupportTranslateX)
{
var model = Matrix4x4.CreateRotationY((float)(upside ? -Math.PI * 1.5f : -Math.PI * 0.5f)) *
Matrix4x4.CreateScale(TranslationConeSize) *
Matrix4x4.CreateTranslation(Position + (Vector3.UnitX + new Vector3(0.1f, 0, 0)) * ((upside ? -Size : Size) * _arrowHeadOffsetMultiplier));
solidEffect.Parameters["ModelViewProjection"].SetValue((model * viewProjection).ToSharpDX());
solidEffect.Parameters["Color"].SetValue(_xAxisColor + (highlight == GizmoMode.TranslateX ? _hoveredAddition : new Vector4()));
solidEffect.CurrentTechnique.Passes[0].Apply();
_device.DrawIndexed(PrimitiveType.TriangleList, _cone.IndexBuffer.ElementCount);
}
// Y axis translation
if (SupportTranslateY)
{
var model = Matrix4x4.CreateRotationX((float)(upside ? Math.PI * 1.5f : Math.PI * 0.5f)) *
Matrix4x4.CreateScale(TranslationConeSize) *
Matrix4x4.CreateTranslation(Position + (Vector3.UnitY + new Vector3(0, 0.1f, 0)) * ((upside ? -Size : Size) * _arrowHeadOffsetMultiplier));
solidEffect.Parameters["ModelViewProjection"].SetValue((model * viewProjection).ToSharpDX());
solidEffect.Parameters["Color"].SetValue(_yAxisColor + (highlight == GizmoMode.TranslateY ? _hoveredAddition : new Vector4()));
solidEffect.CurrentTechnique.Passes[0].Apply();
_device.DrawIndexed(PrimitiveType.TriangleList, _cone.IndexBuffer.ElementCount);
}
// Z axis translation
if (SupportTranslateZ)
{
var model = Matrix4x4.CreateRotationY((float)(upside ? Math.PI : 0.0f)) *
Matrix4x4.CreateScale(TranslationConeSize) *
Matrix4x4.CreateTranslation(Position - (Vector3.UnitZ + new Vector3(0, 0, 0.1f)) * ((upside ? -Size : Size) * _arrowHeadOffsetMultiplier));
solidEffect.Parameters["ModelViewProjection"].SetValue((model * viewProjection).ToSharpDX());
solidEffect.Parameters["Color"].SetValue(_zAxisColor + (highlight == GizmoMode.TranslateZ ? _hoveredAddition : new Vector4()));
solidEffect.CurrentTechnique.Passes[0].Apply();
_device.DrawIndexed(PrimitiveType.TriangleList, _cone.IndexBuffer.ElementCount);
}
}
// All time geometry
{
/*_device.SetVertexBuffer(_cube.VertexBuffer);
* _device.SetVertexInputLayout(VertexInputLayout.FromBuffer(0, _cube.VertexBuffer));
* _device.SetIndexBuffer(_cube.IndexBuffer, _cube.IsIndex32Bits);
*
* // center cube
* {
* var model = Matrix4x4.CreateScale(CentreCubeSize) * Matrix4x4.CreateTranslation(Position);
* solidEffect.Parameters["ModelViewProjection"].SetValue((model * viewProjection).ToSharpDX());
* solidEffect.Parameters["Color"].SetValue(_centerColor);
* solidEffect.CurrentTechnique.Passes[0].Apply();
*
* _device.DrawIndexed(PrimitiveType.TriangleList, _cube.IndexBuffer.ElementCount);
* }*/
}
_device.SetRasterizerState(_device.RasterizerStates.CullBack);
// Rotation display vertices
switch (_mode)
{
case GizmoMode.RotateY:
case GizmoMode.RotateX:
case GizmoMode.RotateZ:
// Figure out relevant angle
float startAngle;
float endAngle;
float lastMouseAngle;
Matrix4x4 baseMatrix;
Vector4 color;
switch (_mode)
{
case GizmoMode.RotateY:
startAngle = _rotationPickAngle;
endAngle = RotationY - _rotationPickAngleOffset;
lastMouseAngle = _rotationLastMouseAngle;
baseMatrix = RotateMatrixY;
color = _yAxisColor;
break;
case GizmoMode.RotateX:
startAngle = -((float)Math.PI * 0.5f) - _rotationPickAngle;
endAngle = -((float)Math.PI * 0.5f) - (RotationX - _rotationPickAngleOffset);
lastMouseAngle = -((float)Math.PI * 0.5f) - _rotationLastMouseAngle;
baseMatrix = Matrix4x4.CreateRotationZ((float)Math.PI / 2.0f) * RotateMatrixX;
color = _xAxisColor;
break;
case GizmoMode.RotateZ:
startAngle = (float)Math.PI + _rotationPickAngle;
endAngle = (float)Math.PI + RotationZ - _rotationPickAngleOffset;
lastMouseAngle = (float)Math.PI + _rotationLastMouseAngle;
baseMatrix = Matrix4x4.CreateRotationX((float)Math.PI / 2.0f) * RotateMatrixZ;
color = _zAxisColor;
break;
default:
throw new NotImplementedException();
}
{ // Choose shortest path
float shortestAngle = endAngle - startAngle;
shortestAngle = (float)(shortestAngle - Math.Round(shortestAngle / (Math.PI * 2)) * (Math.PI * 2));
endAngle = startAngle + shortestAngle;
}
if (startAngle > endAngle)
{
float temp = startAngle;
startAngle = endAngle;
endAngle = temp;
}
// Build rotation geometry
var rotationHelperGeometry = new SolidVertex[_rotationTrianglesCount * 3 + 2];
float angleStep = (endAngle - startAngle) / _rotationTrianglesCount;
var middleVertex = new SolidVertex(new Vector3());
var lastVertex = new SolidVertex(new Vector3((float)Math.Cos(startAngle), 0, (float)-Math.Sin(startAngle)));
for (int i = 0; i < _rotationTrianglesCount; ++i)
{
float currentAngle = startAngle + (i + 1) * angleStep;
var currentVertex = new SolidVertex(new Vector3((float)Math.Cos(currentAngle), 0, (float)-Math.Sin(currentAngle)));
rotationHelperGeometry[i * 3 + 0] = middleVertex;
rotationHelperGeometry[i * 3 + 1] = lastVertex;
rotationHelperGeometry[i * 3 + 2] = currentVertex;
lastVertex = currentVertex;
}
rotationHelperGeometry[_rotationTrianglesCount * 3] = new SolidVertex(new Vector3(
_rotationLastMouseRadius / Size * (float)Math.Cos(lastMouseAngle), 0,
_rotationLastMouseRadius / Size * (float)-Math.Sin(lastMouseAngle)));
rotationHelperGeometry[_rotationTrianglesCount * 3 + 1] = middleVertex;
_rotationHelperGeometry.SetData(rotationHelperGeometry);
// Draw
_device.SetRasterizerState(_device.RasterizerStates.CullNone);
_device.SetVertexBuffer(_rotationHelperGeometry);
_device.SetVertexInputLayout(VertexInputLayout.FromBuffer(0, _rotationHelperGeometry));
var model = Matrix4x4.CreateScale(Size) * baseMatrix * Matrix4x4.CreateTranslation(Position);
solidEffect.Parameters["ModelViewProjection"].SetValue((model * viewProjection).ToSharpDX());
solidEffect.Parameters["Color"].SetValue(color * _rotationAlpha);
solidEffect.CurrentTechnique.Passes[0].Apply();
_device.Draw(PrimitiveType.TriangleList, _rotationTrianglesCount * 3);
solidEffect.Parameters["Color"].SetValue(Vector4.One);
solidEffect.CurrentTechnique.Passes[0].Apply();
_device.SetRasterizerState(_rasterizerWireframe);
_device.Draw(PrimitiveType.LineList, 2, _rotationTrianglesCount * 3);
// FIXME: Temporary fix for text corruption problem! Remove when SharpDX is not used.
_device.SetRasterizerState(_device.RasterizerStates.Default);
break;
}
}
