source/renderer/InstancingModelRenderer.h

   1 /* Copyright (C) 2012 Wildfire Games.
   2  * This file is part of 0 A.D.
   3  *
   4  * 0 A.D. is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * 0 A.D. is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with 0 A.D.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 /*
  19  * Special ModelVertexRender that only works for non-animated models,
  20  * but is very fast for instanced models.
  21  */
  22
  23 #ifndef INCLUDED_INSTANCINGMODELRENDERER
  24 #define INCLUDED_INSTANCINGMODELRENDERER
  25
  26 #include "renderer/ModelVertexRenderer.h"
  27
  28 struct InstancingModelRendererInternals;
  29
  30 /**
  31  * Render non-animated (but potentially moving) models using a ShaderRenderModifier.
  32  * This computes and binds per-vertex data; the modifier is responsible
  33  * for setting any shader uniforms etc (including the instancing transform).
  34  */
  35 class InstancingModelRenderer : public ModelVertexRenderer
  36 {
  37 public:
  38         InstancingModelRenderer(bool gpuSkinning, bool calculateTangents);
  39         ~InstancingModelRenderer();
  40
  41         // Implementations
  42         CModelRData* CreateModelData(const void* key, CModel* model);
  43         void UpdateModelData(CModel* model, CModelRData* data, int updateflags);
  44
  45         void BeginPass(int streamflags);
  46         void EndPass(int streamflags);
  47         void PrepareModelDef(const CShaderProgramPtr& shader, int streamflags, const CModelDef& def);
  48         void RenderModel(const CShaderProgramPtr& shader, int streamflags, CModel* model, CModelRData* data);
  49
  50 protected:
  51         InstancingModelRendererInternals* m;
  52 };
  53
  54 #endif // INCLUDED_INSTANCINGMODELRENDERER