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md3gl.cpp
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md3gl.cpp
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/*
Copyright (C) 2010 Matthew Baranowski, Sander van Rossen & Raven software.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "system.h"
#include "ndictionary.h"
#include "md3gl.h"
#include "md3view.h"
#include "targa.h"
#include <math.h>
#include "animation.h"
#include "oddbits.h"
#include "text.h"
#include "matcomp.h"
/*
sets up an orthogonal projection matrix
*/
void set_windowSize( int x, int y )
{
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
if (y > 0) gluPerspective( mdview.dFOV, (double)x/(double)y, NEAR_GL_PLANE, FAR_GL_PLANE );
glViewport( 0, 0, x, y );
glMatrixMode(GL_MODELVIEW);
}
/*
initializes the opengl state for rendering
*/
void initialize_glstate()
{
glClearColor((float)1/((float)256/(float)mdview._R), (float)1/((float)256/(float)mdview._G), (float)1/((float)256/(float)mdview._B), 0.0f);
glClearDepth(1.0);
glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
glEnable( GL_DEPTH_TEST );
glDepthFunc( GL_LEQUAL );
//GEFORCE glShadeModel( GL_SMOOTH );
// oglStateFlatTextured();
// glFrontFace( mdview.faceSide );
float mat_specular[] = { 1.0, 1.0, 1.0, 1.0 };
float mat_ambient[] = { 0.9f, 0.9f, 0.9f, 1.0 };
float mat_diffuse[] = { 1, 1, 1, 1 };
float mat_shininess[] = { 20.0 };
float light_position[] = { 55.0, -50.0, -5.0, 0.0 };
float light2_position[] = {-50.0, 45.0, 15.0, 0.0 };
float mat2_diffuse[] = { 0.5f, 0.5f, 1, 1 };
//GEFORCE glShadeModel (GL_SMOOTH);
glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);
glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess);
glLightfv(GL_LIGHT0, GL_AMBIENT, mat_ambient);
glLightfv(GL_LIGHT0, GL_DIFFUSE, mat2_diffuse);
glLightfv(GL_LIGHT0, GL_POSITION, light_position);
glLightfv(GL_LIGHT1, GL_POSITION, light2_position);
glLightfv(GL_LIGHT1, GL_DIFFUSE, mat2_diffuse);
glLightfv(GL_LIGHT1, GL_AMBIENT, mat_ambient);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glEnable(GL_LIGHT1);
glEnable( GL_LIGHTING );
glEnable( GL_BLEND );
glBlendFunc(GL_ONE, GL_ZERO);//bug fix
//GEFORCE glEnable( GL_POLYGON_SMOOTH );
oglStateFlatTextured();
}
bool bWireFrame = false;
bool bTexturesOn = true; // needed for Joe's request, now that we can have both wire & textures at once
bool bIsWireFrame(void)
{
return bWireFrame;
}
bool bIsTextured(void)
{
return bTexturesOn;
}
void oglStateFlatTextured()
{
glPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
glEnable( GL_TEXTURE_2D );
glDisable( GL_LIGHTING );
bWireFrame = false;
bTexturesOn = true;
}
void oglStateShadedTexturedAndWireFrame()
{
oglStateFlatTextured();
bWireFrame = true;
}
void oglStateShadedTextured()
{
glPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
glEnable( GL_TEXTURE_2D );
glEnable( GL_LIGHTING );
bWireFrame = false;
bTexturesOn = true;
}
void oglStateShadedFlat()
{
glPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
glDisable( GL_TEXTURE_2D );
glEnable( GL_LIGHTING );
bWireFrame = false;
bTexturesOn = true;
}
void oglStateWireframe()
{
glPolygonMode( GL_FRONT_AND_BACK, GL_LINE );
glDisable( GL_TEXTURE_2D );
glDisable( GL_LIGHTING );
bWireFrame = true;
bTexturesOn = false;
}
/*
computes vector cross product
*/
void cross(Vec3 v1, Vec3 v2, Vec3 c)
{
c[0] = v1[1]*v2[2] - v1[2]*v2[1];
c[1] = v1[2]*v2[0] - v1[0]*v2[2];
c[2] = v1[0]*v2[1] - v1[1]*v2[0];
}
/*
makes normal unit length
*/
void normalize( Vec3 n )
{
int i;
float length = 0.0f;
for (i=0 ; i< 3 ; i++) length += n[i]*n[i];
length = (float)sqrt(length);
if (length == 0) return;
for (i=0 ; i< 3 ; i++) n[i] /= length;
}
/* --------------------------------------- new gl code ------------------------------------------------- */
// Copyright 1999-200 Raven Software
//
shaderCommands_t tess;
void RB_SurfaceAnim( md4Surface_t *surface, gl_model *pModel ) // pModel just for anim frame numbers
{
int i, j, k;
float frontlerp, backlerp;
int *triangles;
int indexes;
int baseIndex, baseVertex;
int numVerts;
md4Vertex_t *v;
md4Bone_t bones[MD4_MAX_BONES];
md4Bone_t *bonePtr, *bone;
md4Header_t *header;
md4Frame_t *frame;
md4Frame_t *oldFrame;
md4CompFrame_t *cframe;
md4CompFrame_t *coldFrame;
int frameSize;
//=====================
tess.numIndexes = 0;
tess.numVertexes = 0;
///////////////// tess.shader = shader;
///////////////// tess.fogNum = fogNum;
///////////////// tess.dlightBits = 0; // will be OR'd in by surface functions
///////////////// tess.xstages = shader->stages;
///////////////// tess.numPasses = shader->numUnfoggedPasses;
///////////////// tess.currentStageIteratorFunc = shader->optimalStageIteratorFunc;
//=====================
int iFrame = pModel->currentFrame;
int iNextFrame = GetNextFrame_MultiLocked(pModel, iFrame, 1);
iNextFrame = Model_EnsureCurrentFrameLegal(pModel,iNextFrame);
// don't lerp if lerping off, or this is the only frame, or the last frame...
//
if ( !mdview.interpolate || pModel->iNumFrames == 0 || iNextFrame == pModel->iNumFrames
// backEnd.currentEntity->e.oldframe == backEnd.currentEntity->e.frame
)
{
backlerp = 0; // if backlerp is 0, lerping is off and frontlerp is never used
frontlerp = 1;
}
else
{
backlerp = mdview.frameFrac;
frontlerp = 1.0f - backlerp;
}
header = (md4Header_t *)((byte *)surface + surface->ofsHeader);
bool bCompressed = false;
if (header->ofsFrames<0)
{
// compressed model...
//
bCompressed = true;
frameSize = (int)( &((md4CompFrame_t *)0)->bones[ header->numBones ] );
cframe = (md4CompFrame_t *)((byte *)header + (-header->ofsFrames) + iFrame * frameSize );
coldFrame = (md4CompFrame_t *)((byte *)header + (-header->ofsFrames) + iNextFrame * frameSize );
}
else
{
frameSize = (int)( &((md4Frame_t *)0)->bones[ header->numBones ] );
frame = (md4Frame_t *)((byte *)header + header->ofsFrames + iFrame * frameSize );
oldFrame = (md4Frame_t *)((byte *)header + header->ofsFrames + iNextFrame * frameSize );
}
// RB_CheckOverflow( surface->numVerts, surface->numTriangles );
triangles = (int *) ((byte *)surface + surface->ofsTriangles);
indexes = surface->numTriangles * 3;
baseIndex = tess.numIndexes;
baseVertex = tess.numVertexes;
for (j = 0 ; j < indexes ; j++)
{
tess.indexes[baseIndex + j] = baseVertex + triangles[j];
}
tess.numIndexes += indexes;
//
// lerp all the needed bones
//
if ( !backlerp && !bCompressed)
{
// no lerping needed
bonePtr = frame->bones;
}
else
{
bonePtr = bones;
if (bCompressed)
{
for ( i = 0 ; i < header->numBones ; i++ )
{
if ( !backlerp )
MC_UnCompress(bonePtr[i].matrix,cframe->bones[i].Comp);
else
{
md4Bone_t tbone[2];
MC_UnCompress(tbone[0].matrix,cframe->bones[i].Comp);
MC_UnCompress(tbone[1].matrix,coldFrame->bones[i].Comp);
for ( j = 0 ; j < 12 ; j++ )
((float *)&bonePtr[i])[j] = frontlerp * ((float *)&tbone[0])[j] + backlerp * ((float *)&tbone[1])[j];
}
}
}
else
{
for ( i = 0 ; i < header->numBones*12 ; i++ )
{
((float *)bonePtr)[i] = frontlerp * ((float *)frame->bones)[i] + backlerp * ((float *)oldFrame->bones)[i];
}
}
}
//
// deform the vertexes by the lerped bones
//
numVerts = surface->numVerts;
v = (md4Vertex_t *) ((byte *)surface + surface->ofsVerts);
for ( j = 0; j < numVerts; j++ )
{
vec3_t tempVert, tempNormal;
md4Weight_t *w;
VectorClear( tempVert );
VectorClear( tempNormal );
w = v->weights;
for ( k = 0 ; k < v->numWeights ; k++, w++ )
{
bone = bonePtr + w->boneIndex;
tempVert[0] += w->boneWeight * ( DotProduct( bone->matrix[0], w->offset ) + bone->matrix[0][3] );
tempVert[1] += w->boneWeight * ( DotProduct( bone->matrix[1], w->offset ) + bone->matrix[1][3] );
tempVert[2] += w->boneWeight * ( DotProduct( bone->matrix[2], w->offset ) + bone->matrix[2][3] );
tempNormal[0] += w->boneWeight * DotProduct( bone->matrix[0], v->normal );
tempNormal[1] += w->boneWeight * DotProduct( bone->matrix[1], v->normal );
tempNormal[2] += w->boneWeight * DotProduct( bone->matrix[2], v->normal );
}
tess.xyz[baseVertex + j][0] = tempVert[0];
tess.xyz[baseVertex + j][1] = tempVert[1];
tess.xyz[baseVertex + j][2] = tempVert[2];
tess.normal[baseVertex + j][0] = tempNormal[0];
tess.normal[baseVertex + j][1] = tempNormal[1];
tess.normal[baseVertex + j][2] = tempNormal[2];
tess.texCoords[baseVertex + j][0][0] = v->texCoords[0];
tess.texCoords[baseVertex + j][0][1] = v->texCoords[1];
v = (md4Vertex_t *)&v->weights[v->numWeights];
}
//=============================
// now draw it...
//
{
glPushAttrib(GL_POLYGON_BIT); // preserves GL_CULL_FACE && GL_CULL_FACE_MODE
if (bIsWireFrame())
{
glEnable(GL_CULL_FACE);
}
for (int iPass=0; iPass<(bIsWireFrame()?2:1); iPass++)
{
if (bIsWireFrame())
{
if (!iPass)
{
glCullFace(GL_BACK);
glColor3f(0.5,0.5,0.5);
}
else
{
glCullFace(GL_FRONT);
glColor3f( 1,1,1);
}
}
glBegin( GL_TRIANGLES );
{
for (int i=0; i<surface->numTriangles*3; i+=3)
{
glNormal3fv ( tess.normal [tess.indexes[i+0]] );
// OutputDebugString(va("x,y = %f,%f\n",tess.texCoords[tess.indexes[i+0]][0][0],tess.texCoords[tess.indexes[i+0]][0][1]));
glTexCoord2fv( tess.texCoords[tess.indexes[i+0]][0] );
glVertex3fv ( tess.xyz [tess.indexes[i+0]] );
// OutputDebugString(va("x,y = %f,%f\n",tess.texCoords[tess.indexes[i+1]][0][0],tess.texCoords[tess.indexes[i+1]][0][1]));
glTexCoord2fv( tess.texCoords[tess.indexes[i+1]][0] );
glVertex3fv ( tess.xyz [tess.indexes[i+1]] );
// OutputDebugString(va("x,y = %f,%f\n",tess.texCoords[tess.indexes[i+2]][0][0],tess.texCoords[tess.indexes[i+2]][0][1]));
glTexCoord2fv( tess.texCoords[tess.indexes[i+2]][0] );
glVertex3fv ( tess.xyz [tess.indexes[i+2]] );
}
}
glEnd();
}
glPopAttrib();
glColor3f( 1,1,1);
}
//=============================
tess.numVertexes += surface->numVerts;
pModel->iRenderedTris += surface->numTriangles;
pModel->iRenderedVerts+= surface->numVerts;
}
#if 1
shaderCommands_t* Freeze_Surface( md4Surface_t *surface, int iFrame ) // pModel just for anim frame numbers
{
int i, j, k;
int *triangles;
int indexes;
int baseIndex, baseVertex;
int numVerts;
md4Vertex_t *v;
md4Bone_t bones[MD4_MAX_BONES];
md4Bone_t *bonePtr, *bone;
md4Header_t *header;
md4Frame_t *frame;
md4CompFrame_t *cframe;
int frameSize;
//=====================
tess.numIndexes = 0;
tess.numVertexes = 0;
//=====================
// int iFrame = pModel->currentFrame;
header = (md4Header_t *)((byte *)surface + surface->ofsHeader);
bool bCompressed = false;
if (header->ofsFrames<0)
{
// compressed model...
//
bCompressed = true;
frameSize = (int)( &((md4CompFrame_t *)0)->bones[ header->numBones ] );
cframe = (md4CompFrame_t *)((byte *)header + (-header->ofsFrames) + iFrame * frameSize );
}
else
{
frameSize = (int)( &((md4Frame_t *)0)->bones[ header->numBones ] );
frame = (md4Frame_t *)((byte *)header + header->ofsFrames + iFrame * frameSize );
}
triangles = (int *) ((byte *)surface + surface->ofsTriangles);
indexes = surface->numTriangles * 3;
baseIndex = tess.numIndexes;
baseVertex = tess.numVertexes;
for (j = 0 ; j < indexes ; j++)
{
tess.indexes[baseIndex + j] = baseVertex + triangles[j];
}
tess.numIndexes += indexes;
//
// lerp all the needed bones
//
if ( !bCompressed)
{
bonePtr = frame->bones;
}
else
{
bonePtr = bones;
for ( i = 0 ; i < header->numBones ; i++ )
{
MC_UnCompress(bonePtr[i].matrix,cframe->bones[i].Comp);
}
}
//
// deform the vertexes by the lerped bones
//
numVerts = surface->numVerts;
v = (md4Vertex_t *) ((byte *)surface + surface->ofsVerts);
for ( j = 0; j < numVerts; j++ )
{
vec3_t tempVert, tempNormal;
md4Weight_t *w;
VectorClear( tempVert );
VectorClear( tempNormal );
w = v->weights;
for ( k = 0 ; k < v->numWeights ; k++, w++ )
{
bone = bonePtr + w->boneIndex;
tempVert[0] += w->boneWeight * ( DotProduct( bone->matrix[0], w->offset ) + bone->matrix[0][3] );
tempVert[1] += w->boneWeight * ( DotProduct( bone->matrix[1], w->offset ) + bone->matrix[1][3] );
tempVert[2] += w->boneWeight * ( DotProduct( bone->matrix[2], w->offset ) + bone->matrix[2][3] );
tempNormal[0] += w->boneWeight * DotProduct( bone->matrix[0], v->normal );
tempNormal[1] += w->boneWeight * DotProduct( bone->matrix[1], v->normal );
tempNormal[2] += w->boneWeight * DotProduct( bone->matrix[2], v->normal );
}
tess.xyz[baseVertex + j][0] = tempVert[0];
tess.xyz[baseVertex + j][1] = tempVert[1];
tess.xyz[baseVertex + j][2] = tempVert[2];
tess.normal[baseVertex + j][0] = tempNormal[0];
tess.normal[baseVertex + j][1] = tempNormal[1];
tess.normal[baseVertex + j][2] = tempNormal[2];
tess.texCoords[baseVertex + j][0][0] = v->texCoords[0];
tess.texCoords[baseVertex + j][0][1] = v->texCoords[1];
v = (md4Vertex_t *)&v->weights[v->numWeights];
}
//=============================
/*
// now draw it...
//
{
glBegin( GL_TRIANGLES );
{
for (int i=0; i<surface->numTriangles*3; i+=3)
{
glNormal3fv ( tess.normal [tess.indexes[i+0]] );
// OutputDebugString(va("x,y = %f,%f\n",tess.texCoords[tess.indexes[i+0]][0][0],tess.texCoords[tess.indexes[i+0]][0][1]));
glTexCoord2fv( tess.texCoords[tess.indexes[i+0]][0] );
glVertex3fv ( tess.xyz [tess.indexes[i+0]] );
// OutputDebugString(va("x,y = %f,%f\n",tess.texCoords[tess.indexes[i+1]][0][0],tess.texCoords[tess.indexes[i+1]][0][1]));
glTexCoord2fv( tess.texCoords[tess.indexes[i+1]][0] );
glVertex3fv ( tess.xyz [tess.indexes[i+1]] );
// OutputDebugString(va("x,y = %f,%f\n",tess.texCoords[tess.indexes[i+2]][0][0],tess.texCoords[tess.indexes[i+2]][0][1]));
glTexCoord2fv( tess.texCoords[tess.indexes[i+2]][0] );
glVertex3fv ( tess.xyz [tess.indexes[i+2]] );
}
}
glEnd();
}
*/
//=============================
tess.numVertexes += surface->numVerts;
return &tess;
}
#endif
LPCSTR vtos(vec3_t v3)
{
return va("%.3f %.3f %.3f",v3[0],v3[1],v3[2]);
}
LPCSTR v2tos(vec2_t v2)
{
return va("%.3f %.3f",v2[0],v2[1]);
}
// this is the only actual (MD3) model draw code, the one that everything else calls...
//
void draw_gl_mesh( gl_mesh *mesh, Vec3 *vecs, gl_model* pModel )
{
TriVec *tris;
int tri_num, t, v;
Vec3 v1, v2, normal;
TexVec *tvecs;
tris = mesh->triangles;
tvecs = mesh->textureCoord;
tri_num = mesh->iNumTriangles;
pModel->iRenderedTris += mesh->iNumTriangles;
pModel->iRenderedVerts+= mesh->iNumVertices;
glPushAttrib(GL_POLYGON_BIT); // preserves GL_CULL_FACE && GL_CULL_FACE_MODE
if (bIsWireFrame() && !bIsTextured())
{
glEnable(GL_CULL_FACE);
}
for (int iPass=0; iPass<((bIsWireFrame() && !bIsTextured())?2:1); iPass++)
{
if (bIsWireFrame() && !bIsTextured())
{
// standard wireframe...
//
if (!iPass)
{
glCullFace(GL_BACK);
glColor3f(0.5,0.5,0.5);
}
else
{
glCullFace(GL_FRONT);
glColor3f( 1,1,1);
}
}
glBegin( GL_TRIANGLES );
for (t=0 ; t<tri_num ; t++)
{
for (v=0 ; v<3 ; v++) {
v1[v] = vecs[tris[t][1]][v] - vecs[tris[t][0]][v];
v2[v] = vecs[tris[t][2]][v] - vecs[tris[t][0]][v];
}
cross( v1, v2, normal );
normalize( normal );
glNormal3fv( normal );
glTexCoord2fv( tvecs[tris[t][0]] ); glVertex3fv( vecs[tris[t][0]] );
glTexCoord2fv( tvecs[tris[t][1]] ); glVertex3fv( vecs[tris[t][1]] );
glTexCoord2fv( tvecs[tris[t][2]] ); glVertex3fv( vecs[tris[t][2]] );
}
glEnd();
}
if (bIsWireFrame() && bIsTextured())
{
glDisable(GL_TEXTURE_2D);
glDisable(GL_BLEND);
glDisable(GL_LIGHTING);
glLineWidth(2);
glColor3f(1,1,0); // yellow
for (t=0 ; t<tri_num ; t++)
{
glBegin( GL_LINE_LOOP );
glVertex3fv( vecs[tris[t][0]] );
glVertex3fv( vecs[tris[t][1]] );
glVertex3fv( vecs[tris[t][2]] );
glEnd();
}
glLineWidth(1);
glEnable(GL_TEXTURE_2D);
glEnable(GL_BLEND);
}
if ( mdview.bBBox )
{
glPushAttrib(GL_ENABLE_BIT | GL_CURRENT_BIT);
{
glDisable(GL_TEXTURE_2D);
glDisable(GL_LIGHTING);
glDisable(GL_BLEND);
// uber-hackery, I don't care about this program any more, so...
//
#define VectorSet(v, x, y, z) ((v)[0]=(x), (v)[1]=(y), (v)[2]=(z))
/*
glBegin( GL_LINE_LOOP );
glVertex3fv( vecs[tris[t][0]] );
typedef struct
{
vec3_t bounds[2];
vec3_t localOrigin;
float radius;
char name[16]; // creator
} md3BoundFrame_t;
md3BoundFrame_t *pMD3BoundFrames; // 2d array of boundary frames size [iNumFrames][iNumTags]
*/
int iFrame = 0;
vec3_t v3Corners[8];
vec3_t &v3Mins = pModel->pMD3BoundFrames[ iFrame ].bounds[0];
vec3_t &v3Maxs = pModel->pMD3BoundFrames[ iFrame ].bounds[1];
VectorSet(v3Corners[0],v3Mins[0],v3Mins[1],v3Mins[2]);
VectorSet(v3Corners[1],v3Maxs[0],v3Mins[1],v3Mins[2]);
VectorSet(v3Corners[2],v3Maxs[0],v3Mins[1],v3Maxs[2]);
VectorSet(v3Corners[3],v3Mins[0],v3Mins[1],v3Maxs[2]);
VectorSet(v3Corners[4],v3Mins[0],v3Maxs[1],v3Maxs[2]);
VectorSet(v3Corners[5],v3Maxs[0],v3Maxs[1],v3Maxs[2]);
VectorSet(v3Corners[6],v3Maxs[0],v3Maxs[1],v3Mins[2]);
VectorSet(v3Corners[7],v3Mins[0],v3Maxs[1],v3Mins[2]);
glColor3f(0.8f,0.8f,0.8f);//1,1,1);
/* glBegin(GL_LINE_LOOP);
{
glVertex3fv(v3Corners[0]);
glVertex3fv(v3Corners[1]);
glVertex3fv(v3Corners[2]);
glVertex3fv(v3Corners[3]);
glVertex3fv(v3Corners[4]);
glVertex3fv(v3Corners[5]);
glVertex3fv(v3Corners[6]);
glVertex3fv(v3Corners[7]);
}
glEnd();
*/
// new version, draw the above shape, but without 3 of the lines (and therefore without GL_LINE_LOOP)
// because otherwise the white lines fight with the coloured ones below... (aesthetics)
//
glBegin(GL_LINES);
{
glVertex3fv(v3Corners[2]);
glVertex3fv(v3Corners[3]);
glVertex3fv(v3Corners[3]);
glVertex3fv(v3Corners[4]);
glVertex3fv(v3Corners[4]);
glVertex3fv(v3Corners[5]);
glVertex3fv(v3Corners[5]);
glVertex3fv(v3Corners[6]);
glVertex3fv(v3Corners[6]);
glVertex3fv(v3Corners[7]);
}
glEnd();
// draw the thicker lines for the 3 dimension axis...
//
glLineWidth(3);
{
// X...
//
glColor3f(1,0,0);
glBegin(GL_LINES);
{
glVertex3fv(v3Corners[0]);
glVertex3fv(v3Corners[1]);
}
glEnd();
// Y...
//
// glColor3f(0,1,0);
glColor3f(0,0,1); // err.... dunno, but this comes out the right colour now. Quake axis tilt?
glBegin(GL_LINES);
{
glVertex3fv(v3Corners[1]);
glVertex3fv(v3Corners[2]);
}
glEnd();
// Z...
//
// glColor3f(0,0,1);
glColor3f(0,1,0); // err.... dunno, but this comes out the right colour now. Quake axis tilt?
glBegin(GL_LINES);
{
glVertex3fv(v3Corners[7]);
glVertex3fv(v3Corners[0]);
}
glEnd();
}
glLineWidth(1);
// now draw the coords...
//
for (int i=0; i<sizeof(v3Corners)/sizeof(v3Corners[0]); i++)
{
LPCSTR psCoordString = vtos(v3Corners[i]);
Text_Display(psCoordString,v3Corners[i],200,70,0);//228/2,107/2,35/2);
}
// now draw the 3 dimensions (sizes)...
//
float fXDim = v3Maxs[0] - v3Mins[0];
float fYDim = v3Maxs[1] - v3Mins[1];
float fZDim = v3Maxs[2] - v3Mins[2];
vec3_t v3Pos;
// X...
//
VectorAdd (v3Corners[0],v3Corners[1],v3Pos);
VectorScale (v3Pos,0.5,v3Pos);
Text_Display(va(" X = %.3f",fXDim),v3Pos,255,128,128); // ruler-pink
//
// Y...
//
VectorAdd (v3Corners[7],v3Corners[0],v3Pos);
VectorScale (v3Pos,0.5,v3Pos);
Text_Display(va(" Y = %.3f",fYDim),v3Pos,255,128,128);
//
// Z...
//
VectorAdd (v3Corners[1],v3Corners[2],v3Pos);
VectorScale (v3Pos,0.5,v3Pos);
Text_Display(va(" Z = %.3f",fZDim),v3Pos,255,128,128);
}
glPopAttrib();
}
glPopAttrib();
glColor3f( 1,1,1);
}
void draw_interpolated_gl_mesh( gl_mesh *mesh, int i, gl_model* model)
{
unsigned int sf=i, ef/*=i+1*/, v, vec_num, t;
Vec3 *vecs1, *vecs2;
Vec3 *vecsI;
float frac=mdview.frameFrac, frac1=1.f-frac;
ef = GetNextFrame_MultiLocked(model, sf, 1);
ef = Model_EnsureCurrentFrameLegal(model,ef);
// do not interpolate if this is the only frame, or the last frame
if ((mesh->iNumMeshFrames < 2) || (ef == mesh->iNumMeshFrames))
{
draw_gl_mesh( mesh, mesh->meshFrames[i].pVerts, model );
return;
}
// calculate an array of interpolated floating point vertices
vecs1 = mesh->meshFrames[sf].pVerts;
vecs2 = mesh->meshFrames[ef].pVerts;
vecsI = mesh->iterMesh;
vec_num = mesh->iNumVertices;
for (t=0 ; t<vec_num ; t++) {
for (v=0 ; v<3 ; v++) {
vecsI[t][v] = vecs1[t][v]*frac1 + vecs2[t][v]*frac;
}
}
draw_gl_mesh( mesh, vecsI, model );
}
/*
renders the current frame
*/
void widget_Axis();
void draw_gl_model( gl_model *model )
{
model->iRenderedTris = 0;
model->iRenderedVerts= 0;
if (model->modelType == MODTYPE_MD3)
{
gl_model* pModel = NULL;
switch (mdview.iLODLevel)
{
case 0: pModel = model; break;
case 1: pModel = model->pModel_LOD1;break;
case 2: pModel = model->pModel_LOD2;break;
}
if (pModel)
{
pModel->iRenderedTris = 0;
pModel->iRenderedVerts= 0;
pModel->currentFrame = model->currentFrame; // since MD3 LODs are seperate models, copy what's needed
int mesh_num = pModel->iNumMeshes;
for (int i=0; i<mesh_num; i++)
{
gl_mesh *pMesh =&pModel->pMeshes[i];
int skin_num = pMesh->iNumSkins;
int frame_num = pMesh->iNumMeshFrames;
int cur_skin = pMesh->bindings[0];
glColor3f( 1, 1, 1 );
glBindTexture( GL_TEXTURE_2D, cur_skin );
GLenum error = glGetError();
if (mdview.interpolate)
{
draw_interpolated_gl_mesh( pMesh, pModel->currentFrame,pModel);
}
else
{
draw_gl_mesh( pMesh, pMesh->meshFrames[pModel->currentFrame].pVerts, pModel );
}
}
}
}
else
{
if (model->modelType == MODTYPE_MDR)
{
md4LOD_t *pLOD = (md4LOD_t *) ((byte *)model->Q3ModelStuff.md4 + model->Q3ModelStuff.md4->ofsLODs);
int iWhichLod = mdview.iLODLevel;
if (iWhichLod >= model->Q3ModelStuff.md4->numLODs)
iWhichLod = model->Q3ModelStuff.md4->numLODs-1;
for ( int i=0; i<iWhichLod; i++)
{
pLOD = (md4LOD_t*)( (byte *)pLOD + pLOD->ofsEnd );
}
md4Surface_t * pSurface = (md4Surface_t *)( (byte *)pLOD + pLOD->ofsSurfaces );
for ( int i = 0 ; i < pLOD->numSurfaces ; i++ )
{
/* if ( ent->e.customShader )
{
shader = cust_shader;
}
else if ( ent->e.customSkin > 0 && ent->e.customSkin < tr.numSkins )
{
skin_t *skin;
int j;
skin = R_GetSkinByHandle( ent->e.customSkin );
// match the surface name to something in the skin file
shader = tr.defaultShader;
for ( j = 0 ; j < skin->numSurfaces ; j++ ) {
// the names have both been lowercased
if ( !strcmp( skin->surfaces[j]->name, surface->name ) ) {
shader = skin->surfaces[j]->shader;
break;
}
}
}
else
{
shader = R_GetShaderByHandle( surface->shaderIndex );
}
*/
glColor3f( 1, 1, 1 );
glBindTexture( GL_TEXTURE_2D, pSurface->shaderIndex);
// OutputDebugString(va("Binding surface %d\n",pSurface->shaderIndex));
GLenum error = glGetError();
RB_SurfaceAnim( pSurface, model );
pSurface = (md4Surface_t *)( (byte *)pSurface + pSurface->ofsEnd );
}
}
}
}
// this is currently not being called -slc
void draw_view()
{
NodePosition pos;
gl_model *model;
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
glLoadIdentity ();
glTranslatef ( mdview.xPos, mdview.yPos , mdview.zPos );
glScalef ( (float)0.05 , (float)0.05, (float)0.05 );
glRotatef ( mdview.rotAngleX, 1.0 , 0.0 , 0.0 );
glRotatef ( mdview.rotAngleY, 0.0 , 1.0 , 0.0 );
glRotatef ( -90.f , 1.0 , 0.0 , 0.0 );
for (pos=mdview.modelList->first() ; pos!=NULL ; pos=mdview.modelList->after(pos)) {
model = (gl_model *)pos->element();
draw_gl_model( model );
}
}
/* ------------------------------ new skeletal drawing code ---------------------------------------------- */
/*
creates a matrix froma quaternion, accepts a ptr to 16 float 4x4 matrix array and a ptr to a 4 float quat array
*/
#define MAT( p, row, col ) (p)[((col)*3)+(row)]
#define MATGL( p, row, col ) (p)[((row)*3)+(col)]
#define X 0
#define Y 1
#define Z 2
#define W 3
#define DELTA 0.1
void matrix_from_quat( float *m, float *quat )
{
float wx, wy, wz, xx, yy, yz, xy, xz, zz, x2, y2, z2;
// calculate coefficients
x2 = quat[X] + quat[X];
y2 = quat[Y] + quat[Y];
z2 = quat[Z] + quat[Z];
xx = quat[X] * x2; xy = quat[X] * y2; xz = quat[X] * z2;
yy = quat[Y] * y2; yz = quat[Y] * z2; zz = quat[Z] * z2;
wx = quat[W] * x2; wy = quat[W] * y2; wz = quat[W] * z2;
MAT(m,0,0) = 1.f - (yy + zz); MAT(m,0,1) = xy - wz;
MAT(m,0,2) = xz + wy; //MAT(m,0,3) = 0.0;
MAT(m,1,0) = xy + wz; MAT(m,1,1) = 1.f - (xx + zz);
MAT(m,1,2) = yz - wx; //MAT(m,1,3) = 0.0;