static void
drawSample(int x, int y, int w, int h,
struct formatInfo *format, struct envModeInfo *envMode)
{
glViewport(x, y, w, h);
glScissor(x, y, w, h);
glClearColor(0.1, 0.1, 0.1, 1.0);
glClear(GL_COLOR_BUFFER_BIT);
begin2D(w, h);
drawString(format->name, 10, h - 15, labelInfoColor);
drawString(envMode->name, 10, 5, labelInfoColor);
end2D();
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, envMode->mode);
glTexEnvfv(GL_TEXTURE_ENV, GL_TEXTURE_ENV_COLOR, envColors[envColor]);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
loadTexture(textureWidth, textureHeight, format);
if (drawBackground) {
drawCheck(15, 15, lightCheck, darkCheck);
}
if (drawBlended) {
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_BLEND);
}
if (drawSmooth) {
glShadeModel(GL_SMOOTH);
}
if (drawTextured) {
glEnable(GL_TEXTURE_2D);
}
glBegin(GL_QUADS);
glColor4f(1.0, 0.0, 0.0, 1.0);
glTexCoord2f(0.0, 0.0);
glVertex2f(-0.8, -0.8);
glColor4f(0.0, 1.0, 0.0, 1.0);
glTexCoord2f(1.0, 0.0);
glVertex2f(0.8, -0.8);
glColor4f(0.0, 0.0, 1.0, 1.0);
glTexCoord2f(1.0, 1.0);
glVertex2f(0.8, 0.8);
glColor4f(1.0, 1.0, 1.0, 1.0);
glTexCoord2f(0.0, 1.0);
glVertex2f(-0.8, 0.8);
glEnd();
glDisable(GL_BLEND);
glShadeModel(GL_FLAT);
glDisable(GL_TEXTURE_2D);
if (displayLevelInfo) {
GLint width, height, border, components;
#if GL_EXT_texture
GLint redSize, greenSize, blueSize, alphaSize;
GLint luminanceSize, intensitySize;
#endif
char buf[255];
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0,
GL_TEXTURE_WIDTH, &width);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0,
GL_TEXTURE_HEIGHT, &height);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0,
GL_TEXTURE_BORDER, &border);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0,
GL_TEXTURE_COMPONENTS, &components);
#if GL_EXT_texture
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0,
GL_TEXTURE_RED_SIZE_EXT, &redSize);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0,
GL_TEXTURE_GREEN_SIZE_EXT, &greenSize);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0,
GL_TEXTURE_BLUE_SIZE_EXT, &blueSize);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0,
GL_TEXTURE_ALPHA_SIZE_EXT, &alphaSize);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0,
GL_TEXTURE_LUMINANCE_SIZE_EXT, &luminanceSize);
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0,
GL_TEXTURE_INTENSITY_SIZE_EXT, &intensitySize);
#endif
begin2D(w, h);
sprintf(buf, "dimensions: %d x %d", width, height);
drawStringOutline(buf, 15, h / 2 + 20, labelLevelColor0, labelLevelColor1);
sprintf(buf, "border: %d", border);
drawStringOutline(buf, 15, h / 2 + 10, labelLevelColor0, labelLevelColor1);
sprintf(buf, "components: 0x%04X", components);
drawStringOutline(buf, 15, h / 2, labelLevelColor0, labelLevelColor1);
sprintf(buf, "sizes:");
drawStringOutline(buf, 15, h / 2 - 10, labelLevelColor0, labelLevelColor1);
#if GL_EXT_texture
sprintf(buf, " %d/%d/%d/%d/%d/%d",
redSize, greenSize, blueSize, alphaSize,
luminanceSize, intensitySize);
drawStringOutline(buf, 15, h / 2 - 20, labelLevelColor0, labelLevelColor1);
#endif
end2D();
}
}
void C_API Program::Render(void)
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
glInitNames();
if (m_ShowText)
{
begin2D(m_window_width, m_window_height);
glColor3f(1.0f, 1.0f, 1.0f);
glPrintf(10, m_window_height-20, "Object Loaded In %f Seconds", m_LoadedObj.fLoadTimeInSecs);
glPrintf(10, m_window_height-40, "Vertices: %u", m_LoadedObj.nVertexCount);
glPrintf(10, m_window_height-60, "Normals: %u", m_LoadedObj.nNormalCount);
glPrintf(10, m_window_height-80, "UVs: %u", m_LoadedObj.nUVCount);
glPrintf(10, 20, "FPS: %i", calcFPS());
end2D();
}
if (m_LoadedObj.pMesh != NULL)
{
glPushMatrix();
glTranslatef(0.0f, 0.0f, m_Zoom);
glRotatef(-(m_AngleY), 1.0f, 0.0f, 0.0f);
glRotatef(-(m_AngleX), 0.0f, 1.0f, 0.0f);
Mesh::RenderMode renderMode;
if (m_Wireframe)
{
renderMode = Mesh::Wireframe;
glLineWidth(1.0f);
// Wireframe Line Color:
glColor3f(0.6f, 0.6f, 0.77f);
}
else
{
renderMode = Mesh::Solid;
glLineWidth(2.0f);
}
// Render Everything:
if (m_LoadedObj.nDrawByGroupID == -1)
{
// First Pass, Normal Rendering:
if ((m_LoadedObj.nNormalCount > 0) && (!m_Wireframe))
{
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
}
m_LoadedObj.pMesh->SetRenderMode(renderMode);
Mesh::GroupMap::const_iterator GroupIndex = m_LoadedObj.pMesh->Groups().begin();
Mesh::GroupMap::const_iterator LastGroup = m_LoadedObj.pMesh->Groups().end();
GLuint name = 0;
while (GroupIndex != LastGroup)
{
glPushName(name);
m_LoadedObj.pMesh->Render(GroupIndex);
glPopName();
++name;
++GroupIndex;
}
if ((m_LoadedObj.nNormalCount > 0) && (!m_Wireframe))
{
glDisable(GL_LIGHT0);
glDisable(GL_LIGHTING);
}
// Second Pass, Draw Group Outline:
if (m_LoadedObj.nSelectedGroup != -1)
{
glColor3f(0.2f, 0.8f, 0.35f); // Give It A Cool Maya Style Outline Color.
m_LoadedObj.pMesh->SetRenderMode(Mesh::Wireframe);
m_LoadedObj.pMesh->Render(m_LoadedObj.pMesh->Groups().find(m_vMeshGroups[m_LoadedObj.nSelectedGroup]));
}
}
else // Render The Selected Group Only:
{
if ((m_LoadedObj.nNormalCount > 0) && (!m_Wireframe))
{
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
}
m_LoadedObj.pMesh->SetRenderMode(renderMode);
m_LoadedObj.pMesh->Render(m_LoadedObj.pMesh->Groups().find(m_vMeshGroups[m_LoadedObj.nDrawByGroupID]));
if ((m_LoadedObj.nNormalCount > 0) && (!m_Wireframe))
{
glDisable(GL_LIGHT0);
glDisable(GL_LIGHTING);
}
}
glPopMatrix();
}
glFlush();
glutSwapBuffers();
}
static void drawSample( int x, int y, int w, int h,
int texgenenabled, int coordnr )
{
char buf[255];
glViewport( x, y, w, h );
glScissor( x, y, w, h );
glClearColor( 0.1, 0.1, 0.1, 1.0 );
glClear( GL_COLOR_BUFFER_BIT );
begin2D( w, h );
if (texgenenabled == 2) {
sprintf( buf, "TexCoord%df", coordnr);
drawString( buf, 10, h - 15, labelInfoColor );
sprintf( buf, "texgen enabled for %s coordinate(s)", coordnr == 2 ? "S" : "S/T");
drawString( buf, 10, 5, labelInfoColor );
}
else if (texgenenabled == 0) {
sprintf( buf, "TexCoord%df", coordnr);
drawString( buf, 10, h - 15, labelInfoColor );
drawString( "no texgen", 10, 5, labelInfoColor );
}
else if (texgenenabled == 1) {
drawString( "no TexCoord", 10, h - 15, labelInfoColor );
sprintf( buf, "texgen enabled for %s coordinate(s)",
coordnr == 2 ? "S/T" : (coordnr == 3 ? "S/T/R" : "S/T/R/Q"));
drawString( buf, 10, 5, labelInfoColor );
}
end2D();
glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP );
loadTexture( textureWidth, textureHeight );
if ( drawTextured ) {
glEnable( GL_TEXTURE_2D );
}
glDisable( GL_TEXTURE_GEN_S );
glDisable( GL_TEXTURE_GEN_T );
glDisable( GL_TEXTURE_GEN_R );
glDisable( GL_TEXTURE_GEN_Q );
glMatrixMode( GL_TEXTURE );
glLoadIdentity();
glMatrixMode( GL_MODELVIEW );
glPushMatrix();
switch (coordnr) {
case 2:
switch (texgenenabled) {
case 0:
glBegin( GL_QUADS );
glTexCoord2f( 0.0, 0.0 );
glVertex2f( -0.8, -0.8 );
glTexCoord2f( 1.0, 0.0 );
glVertex2f( 0.8, -0.8 );
glTexCoord2f( 1.0, 1.0 );
glVertex2f( 0.8, 0.8 );
glTexCoord2f( 0.0, 1.0 );
glVertex2f( -0.8, 0.8 );
glEnd();
break;
case 1:
glTranslatef( -0.8, -0.8, 0.0 );
glScalef( 1.6, 1.6, 1.0 );
glTexGeni( GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
glTexGeni( GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
glTexGeni( GL_R, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
glTexGeni( GL_Q, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
glTexGenfv(GL_S, GL_OBJECT_PLANE, ObjPlaneS3);
glTexGenfv(GL_T, GL_OBJECT_PLANE, ObjPlaneT3);
glTexGenfv(GL_R, GL_OBJECT_PLANE, nullPlane);
glTexGenfv(GL_Q, GL_OBJECT_PLANE, nullPlane);
glEnable( GL_TEXTURE_GEN_S );
glEnable( GL_TEXTURE_GEN_T );
/* Issue a texcoord here to be sure Q isn't left over from a
* previous sample.
*/
glTexCoord1f( 0.0 );
glBegin( GL_QUADS );
glVertex2f( 0.0, 0.0 );
glVertex2f( 1.0, 0.0 );
glVertex2f( 1.0, 1.0 );
glVertex2f( 0.0, 1.0 );
glEnd();
break;
case 2:
/* make sure that texgen T and non-texgen S coordinate are wrong */
glTexGeni( GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
glTexGeni( GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
glTexGeni( GL_R, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
glTexGeni( GL_Q, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
glTexGenfv(GL_S, GL_OBJECT_PLANE, ObjPlaneS1);
glTexGenfv(GL_T, GL_OBJECT_PLANE, nullPlane);
glTexGenfv(GL_R, GL_OBJECT_PLANE, nullPlane);
glTexGenfv(GL_Q, GL_OBJECT_PLANE, nullPlane);
glEnable( GL_TEXTURE_GEN_S );
glBegin( GL_QUADS );
/* use z coordinate to get correct texgen values... */
glTexCoord2f( 0.0, 0.0 );
glVertex3f( -0.8, -0.8, 0.8 );
glTexCoord2f( 0.0, 0.0 );
glVertex3f( 0.8, -0.8, 0.2 );
glTexCoord2f( 0.0, 1.0 );
glVertex3f( 0.8, 0.8, 0.2 );
glTexCoord2f( 0.0, 1.0 );
glVertex3f( -0.8, 0.8, 0.8 );
glEnd();
break;
}
break;
case 3:
glMatrixMode( GL_TEXTURE );
glLoadMatrixf( texmat_swap_rq );
glMatrixMode( GL_MODELVIEW );
glTranslatef( -0.8, -0.8, 0.0 );
glScalef( 1.6, 1.6, 1.0 );
switch (texgenenabled) {
case 0:
glBegin( GL_QUADS );
glTexCoord3f( 0.0, 0.0, 0.5 );
glVertex2f( 0.0, 0.0 );
glTexCoord3f( 0.5, 0.0, 0.5 );
glVertex2f( 1.0, 0.0 );
glTexCoord3f( 0.5, 0.5, 0.5 );
glVertex2f( 1.0, 1.0 );
glTexCoord3f( 0.0, 0.5, 0.5 );
glVertex2f( 0.0, 1.0 );
glEnd();
break;
case 1:
glTexGeni( GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
glTexGeni( GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
glTexGeni( GL_R, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
glTexGeni( GL_Q, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
glTexGenfv(GL_S, GL_OBJECT_PLANE, ObjPlaneS2);
glTexGenfv(GL_T, GL_OBJECT_PLANE, ObjPlaneT2);
glTexGenfv(GL_R, GL_OBJECT_PLANE, ObjPlaneR);
glTexGenfv(GL_Q, GL_OBJECT_PLANE, nullPlane);
glEnable( GL_TEXTURE_GEN_S );
glEnable( GL_TEXTURE_GEN_T );
glEnable( GL_TEXTURE_GEN_R );
glTexCoord1f( 0.0 ); /* to make sure Q is 1.0 */
glBegin( GL_QUADS );
glVertex3f( 0.0, 0.0, 0.5 );
glVertex3f( 1.0, 0.0, 0.5 );
glVertex3f( 1.0, 1.0, 0.5 );
glVertex3f( 0.0, 1.0, 0.5 );
glEnd();
break;
case 2:
/* make sure that texgen R/Q and non-texgen S/T coordinates are wrong */
glTexGeni( GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
glTexGeni( GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
glTexGeni( GL_R, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
glTexGeni( GL_Q, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
glTexGenfv(GL_S, GL_OBJECT_PLANE, ObjPlaneS2);
glTexGenfv(GL_T, GL_OBJECT_PLANE, ObjPlaneT2);
glTexGenfv(GL_R, GL_OBJECT_PLANE, nullPlane);
glTexGenfv(GL_Q, GL_OBJECT_PLANE, nullPlane);
glEnable( GL_TEXTURE_GEN_S );
glEnable( GL_TEXTURE_GEN_T );
glBegin( GL_QUADS );
glTexCoord3f( 0.0, 0.0, 0.5 );
glVertex2f( 0.0, 0.0);
glTexCoord3f( 0.0, 0.0, 0.5 );
glVertex2f( 1.0, 0.0);
glTexCoord3f( 0.0, 0.0, 0.5 );
glVertex2f( 1.0, 1.0);
glTexCoord3f( 0.0, 0.0, 0.5 );
glVertex2f( 0.0, 1.0);
glEnd();
break;
}
break;
case 4:
switch (texgenenabled) {
case 0:
glBegin( GL_QUADS );
/* don't need r coordinate but still setting it I'm mean */
glTexCoord4f( 0.0, 0.0, 0.0, 0.5 );
glVertex2f( -0.8, -0.8 );
glTexCoord4f( 0.5, 0.0, 0.2, 0.5 );
glVertex2f( 0.8, -0.8 );
glTexCoord4f( 0.5, 0.5, 0.5, 0.5 );
glVertex2f( 0.8, 0.8 );
glTexCoord4f( 0.0, 0.5, 0.5, 0.5 );
glVertex2f( -0.8, 0.8 );
glEnd();
break;
case 1:
glTranslatef( -0.8, -0.8, 0.0 );
glScalef( 1.6, 1.6, 1.0 );
/* make sure that texgen R/Q and non-texgen S/T coordinates are wrong */
glTexGeni( GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
glTexGeni( GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
glTexGeni( GL_R, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
glTexGeni( GL_Q, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
glTexGenfv(GL_S, GL_OBJECT_PLANE, ObjPlaneS2);
glTexGenfv(GL_T, GL_OBJECT_PLANE, ObjPlaneT2);
glTexGenfv(GL_R, GL_OBJECT_PLANE, ObjPlaneR);
glTexGenfv(GL_Q, GL_OBJECT_PLANE, ObjPlaneQ);
glEnable( GL_TEXTURE_GEN_S );
glEnable( GL_TEXTURE_GEN_T );
glEnable( GL_TEXTURE_GEN_R );
glEnable( GL_TEXTURE_GEN_Q );
glBegin( GL_QUADS );
glVertex2f( 0.0, 0.0 );
glVertex2f( 1.0, 0.0 );
glVertex2f( 1.0, 1.0 );
glVertex2f( 0.0, 1.0 );
glEnd();
break;
case 2:
glTranslatef( -0.8, -0.8, 0.0 );
glScalef( 1.6, 1.6, 1.0 );
/* make sure that texgen R/Q and non-texgen S/T coordinates are wrong */
glTexGeni( GL_S, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
glTexGeni( GL_T, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
glTexGeni( GL_R, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
glTexGeni( GL_Q, GL_TEXTURE_GEN_MODE, GL_OBJECT_LINEAR );
glTexGenfv(GL_S, GL_OBJECT_PLANE, ObjPlaneS2);
glTexGenfv(GL_T, GL_OBJECT_PLANE, ObjPlaneT2);
glTexGenfv(GL_R, GL_OBJECT_PLANE, nullPlane);
glTexGenfv(GL_Q, GL_OBJECT_PLANE, nullPlane);
glEnable( GL_TEXTURE_GEN_S );
glEnable( GL_TEXTURE_GEN_T );
glBegin( GL_QUADS );
glTexCoord4f( 0.0, 0.0, 0.0, 0.5 );
glVertex2f( 0.0, 0.0 );
glTexCoord4f( 0.0, 0.0, 0.2, 0.5 );
glVertex2f( 1.0, 0.0 );
glTexCoord4f( 0.0, 0.0, 0.5, 0.5 );
glVertex2f( 1.0, 1.0 );
glTexCoord4f( 0.0, 0.0, 0.75, 0.5 );
glVertex2f( 0.0, 1.0 );
glEnd();
break;
}
break;
}
glPopMatrix();
glDisable( GL_TEXTURE_2D );
}