gzdoom/src/r_poly_plane.h
2016-11-27 04:39:33 +01:00

53 lines
2.1 KiB
C++

/*
** Handling drawing a plane (ceiling, floor)
** Copyright (c) 2016 Magnus Norddahl
**
** This software is provided 'as-is', without any express or implied
** warranty. In no event will the authors be held liable for any damages
** arising from the use of this software.
**
** Permission is granted to anyone to use this software for any purpose,
** including commercial applications, and to alter it and redistribute it
** freely, subject to the following restrictions:
**
** 1. The origin of this software must not be misrepresented; you must not
** claim that you wrote the original software. If you use this software
** in a product, an acknowledgment in the product documentation would be
** appreciated but is not required.
** 2. Altered source versions must be plainly marked as such, and must not be
** misrepresented as being the original software.
** 3. This notice may not be removed or altered from any source distribution.
**
*/
#pragma once
#include "r_poly_triangle.h"
class PolyDrawSectorPortal;
class Vec4f;
class RenderPolyPlane
{
public:
static void RenderPlanes(const TriMatrix &worldToClip, const Vec4f &clipPlane, subsector_t *sub, uint32_t subsectorDepth, uint32_t stencilValue, double skyCeilingHeight, double skyFloorHeight, std::vector<std::unique_ptr<PolyDrawSectorPortal>> &sectorPortals);
private:
struct UVTransform
{
UVTransform(const FTransform &transform, FTexture *tex);
float GetU(float x, float y) const;
float GetV(float x, float y) const;
float xscale;
float yscale;
float cosine;
float sine;
float xOffs, yOffs;
};
void Render3DFloor(const TriMatrix &worldToClip, const Vec4f &clipPlane, subsector_t *sub, uint32_t subsectorDepth, uint32_t stencilValue, bool ceiling, F3DFloor *fakefloor);
void Render(const TriMatrix &worldToClip, const Vec4f &clipPlane, subsector_t *sub, uint32_t subsectorDepth, uint32_t stencilValue, bool ceiling, double skyHeight, std::vector<std::unique_ptr<PolyDrawSectorPortal>> &sectorPortals);
TriVertex PlaneVertex(vertex_t *v1, double height, const UVTransform &transform);
};