forked from bartvdbraak/blender
cb89decfdc
the features that are needed to run the game. Compile tested with scons, make, but not cmake, that seems to have an issue not related to these changes. The changes include: * GLSL support in the viewport and game engine, enable in the game menu in textured draw mode. * Synced and merged part of the duplicated blender and gameengine/ gameplayer drawing code. * Further refactoring of game engine drawing code, especially mesh storage changed a lot. * Optimizations in game engine armatures to avoid recomputations. * A python function to get the framerate estimate in game. * An option take object color into account in materials. * An option to restrict shadow casters to a lamp's layers. * Increase from 10 to 18 texture slots for materials, lamps, word. An extra texture slot shows up once the last slot is used. * Memory limit for undo, not enabled by default yet because it needs the .B.blend to be changed. * Multiple undo for image painting. * An offset for dupligroups, so not all objects in a group have to be at the origin.
518 lines
14 KiB
C++
518 lines
14 KiB
C++
/**
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* $Id$
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*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program 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 this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#include "GL/glew.h"
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#include "RAS_IRenderTools.h"
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#include "RAS_IRasterizer.h"
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#include "RAS_LightObject.h"
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#include "RAS_ICanvas.h"
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#include "RAS_GLExtensionManager.h"
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#include "KX_GameObject.h"
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#include "KX_PolygonMaterial.h"
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#include "KX_BlenderMaterial.h"
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#include "KX_RayCast.h"
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#include "KX_IPhysicsController.h"
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#include "PHY_IPhysicsEnvironment.h"
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#include "STR_String.h"
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#include "GPU_draw.h"
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#include "BKE_bmfont.h" // for text printing
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#include "BKE_bmfont_types.h"
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#include "GPC_RenderTools.h"
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unsigned int GPC_RenderTools::m_numgllights;
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GPC_RenderTools::GPC_RenderTools()
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{
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m_font = BMF_GetFont(BMF_kHelvetica10);
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glGetIntegerv(GL_MAX_LIGHTS, (GLint*) &m_numgllights);
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if (m_numgllights < 8)
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m_numgllights = 8;
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}
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GPC_RenderTools::~GPC_RenderTools()
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{
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}
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void GPC_RenderTools::BeginFrame(RAS_IRasterizer* rasty)
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{
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m_clientobject = NULL;
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m_lastlightlayer = -1;
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m_lastlighting = false;
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DisableOpenGLLights();
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}
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void GPC_RenderTools::EndFrame(RAS_IRasterizer* rasty)
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{
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}
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/* ProcessLighting performs lighting on objects. the layer is a bitfield that
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* contains layer information. There are 20 'official' layers in blender. A
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* light is applied on an object only when they are in the same layer. OpenGL
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* has a maximum of 8 lights (simultaneous), so 20 * 8 lights are possible in
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* a scene. */
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void GPC_RenderTools::ProcessLighting(int layer, const MT_Transform& viewmat)
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{
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if(m_lastlightlayer == layer)
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return;
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m_lastlightlayer = layer;
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bool enable = false;
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if (layer >= 0)
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{
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if (m_clientobject)
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{
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if (layer == RAS_LIGHT_OBJECT_LAYER)
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layer = static_cast<KX_GameObject*>(m_clientobject)->GetLayer();
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enable = applyLights(layer, viewmat);
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}
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}
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if(enable)
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EnableOpenGLLights();
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else
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DisableOpenGLLights();
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}
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void GPC_RenderTools::EnableOpenGLLights()
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{
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if(m_lastlighting == true)
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return;
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glEnable(GL_LIGHTING);
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glEnable(GL_COLOR_MATERIAL);
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glColorMaterial(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE);
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glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, true);
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if (GLEW_EXT_separate_specular_color || GLEW_VERSION_1_2)
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glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
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m_lastlighting = true;
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}
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void GPC_RenderTools::DisableOpenGLLights()
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{
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if(m_lastlighting == false)
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return;
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glDisable(GL_LIGHTING);
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glDisable(GL_COLOR_MATERIAL);
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m_lastlighting = false;
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}
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void GPC_RenderTools::SetClientObject(RAS_IRasterizer *rasty, void* obj)
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{
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if (m_clientobject != obj)
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{
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bool ccw = (obj == NULL || !((KX_GameObject*)obj)->IsNegativeScaling());
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rasty->SetFrontFace(ccw);
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m_clientobject = obj;
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}
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}
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bool GPC_RenderTools::RayHit(KX_ClientObjectInfo* client, KX_RayCast* result, void * const data)
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{
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double* const oglmatrix = (double* const) data;
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MT_Point3 resultpoint(result->m_hitPoint);
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MT_Vector3 resultnormal(result->m_hitNormal);
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MT_Vector3 left(oglmatrix[0],oglmatrix[1],oglmatrix[2]);
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MT_Vector3 dir = -(left.cross(resultnormal)).safe_normalized();
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left = (dir.cross(resultnormal)).safe_normalized();
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// for the up vector, we take the 'resultnormal' returned by the physics
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double maat[16]={
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left[0], left[1], left[2], 0,
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dir[0], dir[1], dir[2], 0,
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resultnormal[0],resultnormal[1],resultnormal[2], 0,
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0, 0, 0, 1};
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glTranslated(resultpoint[0],resultpoint[1],resultpoint[2]);
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//glMultMatrixd(oglmatrix);
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glMultMatrixd(maat);
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return true;
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}
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void GPC_RenderTools::applyTransform(RAS_IRasterizer* rasty,double* oglmatrix,int objectdrawmode )
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{
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/* FIXME:
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blender: intern/moto/include/MT_Vector3.inl:42: MT_Vector3 operator/(const
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MT_Vector3&, double): Assertion `!MT_fuzzyZero(s)' failed.
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Program received signal SIGABRT, Aborted.
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[Switching to Thread 16384 (LWP 1519)]
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0x40477571 in kill () from /lib/libc.so.6
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(gdb) bt
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#7 0x08334368 in MT_Vector3::normalized() const ()
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#8 0x0833e6ec in GPC_RenderTools::applyTransform(RAS_IRasterizer*, double*, int) ()
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*/
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if (objectdrawmode & RAS_IPolyMaterial::BILLBOARD_SCREENALIGNED ||
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objectdrawmode & RAS_IPolyMaterial::BILLBOARD_AXISALIGNED)
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{
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// rotate the billboard/halo
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//page 360/361 3D Game Engine Design, David Eberly for a discussion
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// on screen aligned and axis aligned billboards
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// assumed is that the preprocessor transformed all billboard polygons
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// so that their normal points into the positive x direction (1.0 , 0.0 , 0.0)
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// when new parenting for objects is done, this rotation
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// will be moved into the object
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MT_Point3 objpos (oglmatrix[12],oglmatrix[13],oglmatrix[14]);
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MT_Point3 campos = rasty->GetCameraPosition();
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MT_Vector3 dir = (campos - objpos).safe_normalized();
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MT_Vector3 up(0,0,1.0);
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KX_GameObject* gameobj = (KX_GameObject*) this->m_clientobject;
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// get scaling of halo object
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MT_Vector3 size = gameobj->GetSGNode()->GetLocalScale();
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bool screenaligned = (objectdrawmode & RAS_IPolyMaterial::BILLBOARD_SCREENALIGNED)!=0;//false; //either screen or axisaligned
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if (screenaligned)
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{
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up = (up - up.dot(dir) * dir).safe_normalized();
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} else
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{
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dir = (dir - up.dot(dir)*up).safe_normalized();
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}
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MT_Vector3 left = dir.normalized();
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dir = (left.cross(up)).normalized();
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// we have calculated the row vectors, now we keep
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// local scaling into account:
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left *= size[0];
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dir *= size[1];
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up *= size[2];
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double maat[16]={
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left[0], left[1],left[2], 0,
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dir[0], dir[1],dir[2],0,
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up[0],up[1],up[2],0,
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0,0,0,1};
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glTranslated(objpos[0],objpos[1],objpos[2]);
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glMultMatrixd(maat);
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} else
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{
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if (objectdrawmode & RAS_IPolyMaterial::SHADOW)
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{
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// shadow must be cast to the ground, physics system needed here!
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MT_Point3 frompoint(oglmatrix[12],oglmatrix[13],oglmatrix[14]);
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KX_GameObject *gameobj = (KX_GameObject*) this->m_clientobject;
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MT_Vector3 direction = MT_Vector3(0,0,-1);
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direction.normalize();
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direction *= 100000;
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MT_Point3 topoint = frompoint + direction;
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KX_Scene* kxscene = (KX_Scene*) m_auxilaryClientInfo;
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PHY_IPhysicsEnvironment* physics_environment = kxscene->GetPhysicsEnvironment();
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KX_IPhysicsController* physics_controller = gameobj->GetPhysicsController();
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KX_GameObject *parent = gameobj->GetParent();
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if (!physics_controller && parent)
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physics_controller = parent->GetPhysicsController();
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if (parent)
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parent->Release();
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KX_RayCast::Callback<GPC_RenderTools> callback(this, physics_controller, oglmatrix);
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if (!KX_RayCast::RayTest(physics_environment, frompoint, topoint, callback))
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{
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// couldn't find something to cast the shadow on...
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glMultMatrixd(oglmatrix);
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}
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} else
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{
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// 'normal' object
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glMultMatrixd(oglmatrix);
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}
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}
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}
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void GPC_RenderTools::RenderText2D(RAS_TEXT_RENDER_MODE mode,
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const char* text,
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int xco,
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int yco,
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int width,
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int height)
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{
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STR_String tmpstr(text);
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int lines;
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char* s = tmpstr.Ptr();
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char* p;
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// Save and change OpenGL settings
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int texture2D;
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glGetIntegerv(GL_TEXTURE_2D, (GLint*)&texture2D);
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glDisable(GL_TEXTURE_2D);
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int fog;
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glGetIntegerv(GL_FOG, (GLint*)&fog);
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glDisable(GL_FOG);
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int light;
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glGetIntegerv(GL_LIGHTING, (GLint*)&light);
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glDisable(GL_LIGHTING);
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// Set up viewing settings
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glMatrixMode(GL_PROJECTION);
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glPushMatrix();
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glLoadIdentity();
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glOrtho(0, width, 0, height, -1, 1);
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glMatrixMode(GL_MODELVIEW);
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glPushMatrix();
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glLoadIdentity();
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// Actual drawing
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unsigned char colors[2][3] = {
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{0x00, 0x00, 0x00},
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{0xFF, 0xFF, 0xFF}
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};
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int numTimes = mode == RAS_TEXT_PADDED ? 2 : 1;
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for (int i = 0; i < numTimes; i++) {
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glColor3ub(colors[i][0], colors[i][1], colors[i][2]);
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glRasterPos2i(xco, yco);
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for (p = s, lines = 0; *p; p++) {
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if (*p == '\n')
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{
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lines++;
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glRasterPos2i(xco, yco-(lines*18));
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}
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BMF_DrawCharacter(m_font, *p);
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}
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xco += 1;
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yco += 1;
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}
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// Restore view settings
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glMatrixMode(GL_PROJECTION);
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glPopMatrix();
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glMatrixMode(GL_MODELVIEW);
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glPopMatrix();
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// Restore OpenGL Settings
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if (fog)
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glEnable(GL_FOG);
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else
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glDisable(GL_FOG);
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if (texture2D)
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glEnable(GL_TEXTURE_2D);
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else
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glDisable(GL_TEXTURE_2D);
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if (light)
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glEnable(GL_LIGHTING);
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else
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glDisable(GL_LIGHTING);
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}
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/* Render Text renders text into a (series of) polygon, using a texture font,
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* Each character consists of one polygon (one quad or two triangles) */
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void GPC_RenderTools::RenderText(
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int mode,
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RAS_IPolyMaterial* polymat,
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float v1[3], float v2[3], float v3[3], float v4[3], int glattrib)
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{
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STR_String mytext = ((CValue*)m_clientobject)->GetPropertyText("Text");
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const unsigned int flag = polymat->GetFlag();
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struct MTFace* tface = 0;
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unsigned int *col = 0;
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if(flag & RAS_BLENDERMAT) {
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KX_BlenderMaterial *bl_mat = static_cast<KX_BlenderMaterial*>(polymat);
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tface = bl_mat->GetMTFace();
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col = bl_mat->GetMCol();
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} else {
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KX_PolygonMaterial* blenderpoly = static_cast<KX_PolygonMaterial*>(polymat);
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tface = blenderpoly->GetMTFace();
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col = blenderpoly->GetMCol();
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}
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GPU_render_text(tface, mode, mytext, mytext.Length(), col, v1, v2, v3, v4, glattrib);
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}
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void GPC_RenderTools::PushMatrix()
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{
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glPushMatrix();
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}
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void GPC_RenderTools::PopMatrix()
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{
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glPopMatrix();
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}
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int GPC_RenderTools::applyLights(int objectlayer, const MT_Transform& viewmat)
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{
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// taken from blender source, incompatibility between Blender Object / GameObject
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float glviewmat[16];
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unsigned int count;
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float vec[4];
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vec[3]= 1.0;
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for(count=0; count<m_numgllights; count++)
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glDisable((GLenum)(GL_LIGHT0+count));
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//std::vector<struct RAS_LightObject*> m_lights;
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std::vector<struct RAS_LightObject*>::iterator lit = m_lights.begin();
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viewmat.getValue(glviewmat);
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glPushMatrix();
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glLoadMatrixf(glviewmat);
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for (lit = m_lights.begin(), count = 0; !(lit==m_lights.end()) && count < m_numgllights; ++lit)
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{
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RAS_LightObject* lightdata = (*lit);
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if (lightdata->m_layer & objectlayer)
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{
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vec[0] = (*(lightdata->m_worldmatrix))(0,3);
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vec[1] = (*(lightdata->m_worldmatrix))(1,3);
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vec[2] = (*(lightdata->m_worldmatrix))(2,3);
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vec[3] = 1;
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if(lightdata->m_type==RAS_LightObject::LIGHT_SUN) {
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vec[0] = (*(lightdata->m_worldmatrix))(0,2);
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vec[1] = (*(lightdata->m_worldmatrix))(1,2);
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vec[2] = (*(lightdata->m_worldmatrix))(2,2);
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//vec[0]= base->object->obmat[2][0];
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//vec[1]= base->object->obmat[2][1];
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//vec[2]= base->object->obmat[2][2];
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vec[3]= 0.0;
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glLightfv((GLenum)(GL_LIGHT0+count), GL_POSITION, vec);
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}
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else {
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//vec[3]= 1.0;
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glLightfv((GLenum)(GL_LIGHT0+count), GL_POSITION, vec);
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glLightf((GLenum)(GL_LIGHT0+count), GL_CONSTANT_ATTENUATION, 1.0);
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glLightf((GLenum)(GL_LIGHT0+count), GL_LINEAR_ATTENUATION, lightdata->m_att1/lightdata->m_distance);
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// without this next line it looks backward compatible.
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//attennuation still is acceptable
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glLightf((GLenum)(GL_LIGHT0+count), GL_QUADRATIC_ATTENUATION, lightdata->m_att2/(lightdata->m_distance*lightdata->m_distance));
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if(lightdata->m_type==RAS_LightObject::LIGHT_SPOT) {
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vec[0] = -(*(lightdata->m_worldmatrix))(0,2);
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vec[1] = -(*(lightdata->m_worldmatrix))(1,2);
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vec[2] = -(*(lightdata->m_worldmatrix))(2,2);
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//vec[0]= -base->object->obmat[2][0];
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//vec[1]= -base->object->obmat[2][1];
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//vec[2]= -base->object->obmat[2][2];
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glLightfv((GLenum)(GL_LIGHT0+count), GL_SPOT_DIRECTION, vec);
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glLightf((GLenum)(GL_LIGHT0+count), GL_SPOT_CUTOFF, lightdata->m_spotsize/2.0);
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glLightf((GLenum)(GL_LIGHT0+count), GL_SPOT_EXPONENT, 128.0*lightdata->m_spotblend);
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}
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else glLightf((GLenum)(GL_LIGHT0+count), GL_SPOT_CUTOFF, 180.0);
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}
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if (lightdata->m_nodiffuse)
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{
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vec[0] = vec[1] = vec[2] = vec[3] = 0.0;
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} else {
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vec[0]= lightdata->m_energy*lightdata->m_red;
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vec[1]= lightdata->m_energy*lightdata->m_green;
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vec[2]= lightdata->m_energy*lightdata->m_blue;
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vec[3]= 1.0;
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}
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glLightfv((GLenum)(GL_LIGHT0+count), GL_DIFFUSE, vec);
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if (lightdata->m_nospecular)
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{
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vec[0] = vec[1] = vec[2] = vec[3] = 0.0;
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} else if (lightdata->m_nodiffuse) {
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vec[0]= lightdata->m_energy*lightdata->m_red;
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vec[1]= lightdata->m_energy*lightdata->m_green;
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vec[2]= lightdata->m_energy*lightdata->m_blue;
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vec[3]= 1.0;
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}
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glLightfv((GLenum)(GL_LIGHT0+count), GL_SPECULAR, vec);
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glEnable((GLenum)(GL_LIGHT0+count));
|
|
|
|
count++;
|
|
}
|
|
}
|
|
glPopMatrix();
|
|
|
|
return count;
|
|
|
|
}
|
|
|
|
void GPC_RenderTools::MotionBlur(RAS_IRasterizer* rasterizer)
|
|
{
|
|
int state = rasterizer->GetMotionBlurState();
|
|
float motionblurvalue;
|
|
if(state)
|
|
{
|
|
motionblurvalue = rasterizer->GetMotionBlurValue();
|
|
if(state==1)
|
|
{
|
|
//bugfix:load color buffer into accum buffer for the first time(state=1)
|
|
glAccum(GL_LOAD, 1.0);
|
|
rasterizer->SetMotionBlurState(2);
|
|
}
|
|
else if(motionblurvalue>=0.0 && motionblurvalue<=1.0)
|
|
{
|
|
glAccum(GL_MULT, motionblurvalue);
|
|
glAccum(GL_ACCUM, 1-motionblurvalue);
|
|
glAccum(GL_RETURN, 1.0);
|
|
glFlush();
|
|
}
|
|
}
|
|
}
|
|
|
|
void GPC_RenderTools::Update2DFilter(vector<STR_String>& propNames, void* gameObj, RAS_2DFilterManager::RAS_2DFILTER_MODE filtermode, int pass, STR_String& text)
|
|
{
|
|
m_filtermanager.EnableFilter(propNames, gameObj, filtermode, pass, text);
|
|
}
|
|
|
|
void GPC_RenderTools::Render2DFilters(RAS_ICanvas* canvas)
|
|
{
|
|
m_filtermanager.RenderFilters(canvas);
|
|
}
|
|
|