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vector and matrix optimization

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This commit is contained in:
Youmu Liu
2025-10-14 18:13:18 +08:00
parent 47d2bfe558
commit c5eaf250ab
16 changed files with 482 additions and 381 deletions
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StgSharp.Common/Mathematics/Graphic/Camera.cs
+36 -39
View File
@@ -1,30 +1,27 @@
//-----------------------------------------------------------------------
// -----------------------------------------------------------------------
// file="Camera.cs"
// file="Camera"
// Project: StgSharp
// AuthorGroup: Nitload Space
// Copyright (c) Nitload Space. All rights reserved.
// AuthorGroup: Nitload
// Copyright (c) Nitload. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the “Software”), to deal in the Software without restriction,
// including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software,
// and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and
// this permission notice shall be included in all copies
// or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED “AS IS”,
// WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH
// THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//
// -----------------------------------------------------------------------
// -----------------------------------------------------------------------
@@ -82,7 +79,7 @@ namespace StgSharp.Mathematics.Graphic
return _lookAt;
}
Matrix44 move = Matrix44.Unit;
move.colum3.vec -= cameraAtt.colum3.vec;
move.column3.vec -= cameraAtt.column3.vec;
_lookAt = rotationAtt.Transpose * move;
_isLookAtAvailable = true;
return _lookAt;
@@ -123,19 +120,19 @@ namespace StgSharp.Mathematics.Graphic
public void MoveNear(float distance)
{
cameraAtt.colum3.Z -= distance;
cameraAtt.column3.Z -= distance;
_isLookAtAvailable = false;
}
public void MoveRight(float distance)
{
cameraAtt.colum3.X -= distance;
cameraAtt.column3.X -= distance;
_isLookAtAvailable = false;
}
public void MoveUp(float distance)
{
cameraAtt.colum3.Y -= distance;
cameraAtt.column3.Y -= distance;
_isLookAtAvailable = false;
}
@@ -148,7 +145,7 @@ namespace StgSharp.Mathematics.Graphic
public void SetViewDirection(Vec3 position, Vec3 target, Vec3 up)
{
Vec3 direction = position - target;
if ((position.reg == cameraAtt.colum3.reg) && (this.up == up) && (cameraAtt.colum2.reg == direction.reg)) {
if ((position.reg == cameraAtt.column3.reg) && (this.up == up) && (cameraAtt.column2.reg == direction.reg)) {
return;
}
if (direction.GetLength() == 0)
@@ -168,10 +165,10 @@ namespace StgSharp.Mathematics.Graphic
Vec3 right = Linear.Orthogonalize(Linear.Cross(up, direction));
cameraAtt.colum0.reg = right.reg;
cameraAtt.colum1.reg = up.reg;
cameraAtt.colum2.reg = direction.reg;
cameraAtt.colum3.reg = position.reg;
cameraAtt.column0.reg = right.reg;
cameraAtt.column1.reg = up.reg;
cameraAtt.column2.reg = direction.reg;
cameraAtt.column3.reg = position.reg;
InternalPitch();
InternalRow();
@@ -189,13 +186,13 @@ namespace StgSharp.Mathematics.Graphic
width = Scaler.Abs(GeometryScaler.Tan(fovRadius / 2) * near * 2),
height = width * size.Y / size.X;
_projection.colum0.X = 2 * near / width;
_projection.colum1.Y = 2 * near / height;
_projection.colum2.X = 2 * offsetX / width;
_projection.colum2.Y = 2 * offsetY / height;
_projection.colum2.Z = (far + near) / (near - far);
_projection.colum2.W = -1;
_projection.colum3.Z = 2 * near * far / (near - far);
_projection.column0.X = 2 * near / width;
_projection.column1.Y = 2 * near / height;
_projection.column2.X = 2 * offsetX / width;
_projection.column2.Y = 2 * offsetY / height;
_projection.column2.Z = (far + near) / (near - far);
_projection.column2.W = -1;
_projection.column3.Z = 2 * near * far / (near - far);
}
public void Test(params Vec4[] vec)