Ykkrosh
b1b96a89d6
Previously we had a single culling frustum based on the main camera, and any object outside the frustum would never get rendered, even if it should actually contribute to shadows or reflections/refractions. This caused ugly pop-in effects in the shadows and reflections while scrolling. Extend the renderer to support multiple cull groups, each with a separate frustum and with separate lists of submitted objects, so that shadows and reflections will render the correctly culled sets of objects. Update the shadow map generation to compute the (hopefully) correct bounds and matrices for this new scheme. Include terrain patches in the shadow bounds, so hills can cast shadows correctly. Remove the code that tried to render objects slightly outside the camera frustum in order to reduce the pop-in effect, since that was a workaround for the lack of a proper fix. Remove the model/patch filtering code, which was used to cull objects that were in the normal camera frustum but should be excluded from reflections/refractions, since that's redundant now too. Inline DistanceToPlane to save a few hundred usecs per frame inside CCmpUnitRenderer::RenderSubmit. Fixes #504, #579. This was SVN commit r15445.
76 lines
1.9 KiB
C++
76 lines
1.9 KiB
C++
/* Copyright (C) 2009 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* A patch of terrain holding NxN MiniPatch tiles
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*/
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#ifndef INCLUDED_PATCH
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#define INCLUDED_PATCH
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#include "MiniPatch.h"
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#include "RenderableObject.h"
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class CTerrain;
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///////////////////////////////////////////////////////////////////////////////
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// Terrain Constants:
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//
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// PATCH_SIZE: number of tiles in each patch
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const ssize_t PATCH_SIZE = 16;
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// Flags for whether the patch should be drawn with a solid plane
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// on each side
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enum CPatchSideFlags
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{
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CPATCH_SIDE_NEGX = (1 << 0),
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CPATCH_SIDE_POSX = (1 << 1),
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CPATCH_SIDE_NEGZ = (1 << 2),
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CPATCH_SIDE_POSZ = (1 << 3),
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};
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///////////////////////////////////////////////////////////////////////////////
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// CPatch: a single terrain patch, PATCH_SIZE tiles square
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class CPatch : public CRenderableObject
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{
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public:
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// constructor
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CPatch();
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// destructor
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~CPatch();
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// initialize the patch
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void Initialize(CTerrain* parent,ssize_t x,ssize_t z);
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// calculate and store bounds of this patch
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void CalcBounds();
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public:
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// minipatches (tiles) making up the patch
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CMiniPatch m_MiniPatches[PATCH_SIZE][PATCH_SIZE];
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// position of patch in parent terrain grid
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int m_X,m_Z;
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// parent terrain
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CTerrain* m_Parent;
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int GetSideFlags();
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};
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#endif
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