46 lines
1.8 KiB
C
46 lines
1.8 KiB
C
/*
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** Polygon Doom software renderer
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** Copyright (c) 2016 Magnus Norddahl
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**
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** This software is provided 'as-is', without any express or implied
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** warranty. In no event will the authors be held liable for any damages
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** arising from the use of this software.
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**
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** Permission is granted to anyone to use this software for any purpose,
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** including commercial applications, and to alter it and redistribute it
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** freely, subject to the following restrictions:
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**
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** 1. The origin of this software must not be misrepresented; you must not
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** claim that you wrote the original software. If you use this software
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** in a product, an acknowledgment in the product documentation would be
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** appreciated but is not required.
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** 2. Altered source versions must be plainly marked as such, and must not be
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** misrepresented as being the original software.
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** 3. This notice may not be removed or altered from any source distribution.
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**
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*/
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#pragma once
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struct TriVertex;
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struct FRenderViewpoint;
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struct TriMatrix
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{
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static TriMatrix null();
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static TriMatrix identity();
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static TriMatrix translate(float x, float y, float z);
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static TriMatrix scale(float x, float y, float z);
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static TriMatrix rotate(float angle, float x, float y, float z);
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static TriMatrix swapYZ();
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static TriMatrix perspective(float fovy, float aspect, float near, float far);
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static TriMatrix frustum(float left, float right, float bottom, float top, float near, float far);
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static TriMatrix worldToView(const FRenderViewpoint &viewpoint); // Software renderer world to view space transform
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static TriMatrix viewToClip(double focalTangent, double centerY, double YaspectMul); // Software renderer shearing projection
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FVector4 operator*(const FVector4 &v) const;
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TriMatrix operator*(const TriMatrix &m) const;
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float matrix[16];
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};
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