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EgtGraphics 1.5b4 :

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- aggiunta gestione dello sfondo anche sfumato
- adattamenti per modifiche a ICMdParser.
This commit is contained in:
Dario Sassi
2014-02-25 16:40:18 +00:00
parent 73ee89f9c5
commit cae2cf6ab0
8 changed files with 145 additions and 33 deletions
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SceneBasic.cpp
+100 -4
View File
@@ -14,6 +14,7 @@
//--------------------------- Include ----------------------------------------
#include "stdafx.h"
#include "Scene.h"
#include "GraphObjs.h"
#include "DllMain.h"
#include "/EgtDev/Include/EgtILogger.h"
#include "/EgtDev/Include/EGnStringUtils.h"
@@ -467,14 +468,105 @@ Scene::Reshape( int nW, int nH)
//----------------------------------------------------------------------------
bool
Scene::Prepare( void)
Scene::SetBackground( Color BackTop, Color BackBottom)
{
m_BackTop = BackTop ;
m_BackBottom = BackBottom ;
return true ;
}
//----------------------------------------------------------------------------
bool
Scene::Background( void)
{
// imposto il rendering corrente
if ( ! MakeCurrent())
return false ;
// imposto il colore dello sfondo
glClearColor( 0.1f, 0.1f, 0.5f, 0.0f) ;
glClearColor( m_BackTop.GetRed(), m_BackTop.GetGreen(), m_BackTop.GetBlue(), m_BackTop.GetAlpha()) ;
// cancello
glClear( GL_COLOR_BUFFER_BIT) ;
// se lo sfondo ha un colore uniforme, ho finito
if ( m_BackTop == m_BackBottom)
return true ;
// rendo neutre matrici di proiezione e di modello/vista
glMatrixMode( GL_PROJECTION) ;
glLoadIdentity() ;
glMatrixMode( GL_MODELVIEW) ;
glLoadIdentity() ;
// disegno lo sfondo con due colori
if ( ! m_bNewWay) {
glBegin( GL_TRIANGLE_STRIP) ;
glColor3f( m_BackBottom.GetRed(), m_BackBottom.GetGreen(), m_BackBottom.GetBlue()) ;
glVertex3f( -1, -1, 0.5) ;
glVertex3f( 1, -1, 0.5) ;
glColor3f( m_BackTop.GetRed(), m_BackTop.GetGreen(), m_BackTop.GetBlue()) ;
glVertex3f( -1, 1, 0.5) ;
glVertex3f( 1, 1, 0.5) ;
glEnd() ;
}
else {
unsigned int nVaoId ;
unsigned int nVboId ;
// definizione
glGenVertexArrays( 1, &nVaoId) ;
if ( nVaoId == 0)
return false ;
glBindVertexArray( nVaoId) ;
glGenBuffers( 1, &nVboId) ;
glBindBuffer( GL_ARRAY_BUFFER, nVboId) ;
glBufferData( GL_ARRAY_BUFFER, 8 * SIZEV3F, NULL, GL_STATIC_DRAW) ;
glVertexPointer( 3, GL_FLOAT, 2 * SIZEV3F, ((void*)(0))) ;
glEnableClientState( GL_VERTEX_ARRAY) ;
glColorPointer( 3, GL_FLOAT, 2 * SIZEV3F, ((void*)(1 * SIZEV3F))) ;
glEnableClientState( GL_COLOR_ARRAY) ;
Vert3f v3V ;
Vert3f v3C ;
// bottom left
v3V.Set( -1, -1, 0.5) ;
glBufferSubData( GL_ARRAY_BUFFER, 0 * SIZEV3F, SIZEV3F, &v3V) ;
v3C.Set( m_BackBottom.GetRed(), m_BackBottom.GetGreen(), m_BackBottom.GetBlue()) ;
glBufferSubData( GL_ARRAY_BUFFER, 1 * SIZEV3F, SIZEV3F, &v3C) ;
// bottom right
v3V.Set( 1, -1, 0.5) ;
glBufferSubData( GL_ARRAY_BUFFER, 2 * SIZEV3F, SIZEV3F, &v3V) ;
// v3C constant
glBufferSubData( GL_ARRAY_BUFFER, 3 * SIZEV3F, SIZEV3F, &v3C) ;
// top left
v3V.Set( -1, 1, 0.5) ;
glBufferSubData( GL_ARRAY_BUFFER, 4 * SIZEV3F, SIZEV3F, &v3V) ;
v3C.Set( m_BackTop.GetRed(), m_BackTop.GetGreen(), m_BackTop.GetBlue()) ;
glBufferSubData( GL_ARRAY_BUFFER, 5 * SIZEV3F, SIZEV3F, &v3C) ;
// top right
v3V.Set( 1, 1, 0.5) ;
glBufferSubData( GL_ARRAY_BUFFER, 6 * SIZEV3F, SIZEV3F, &v3V) ;
// v3C constant
glBufferSubData( GL_ARRAY_BUFFER, 7 * SIZEV3F, SIZEV3F, &v3C) ;
// disegno
glDrawArrays( GL_TRIANGLE_STRIP, 0, 4) ;
// cancellazione
glBindBuffer( GL_ARRAY_BUFFER, 0) ;
glDeleteBuffers( 1, &nVboId) ;
glBindVertexArray( 0) ;
glDeleteVertexArrays( 1, &nVaoId) ;
}
return true ;
}
//----------------------------------------------------------------------------
bool
Scene::Prepare( void)
{
// imposto il rendering corrente
if ( ! MakeCurrent())
return false ;
// eventuale ricalcolo parametri di vista
CalcDirUp() ;
@@ -506,12 +598,16 @@ Scene::Prepare( void)
bool
Scene::Draw( void)
{
// sistemo lo sfondo
if ( ! Background())
return false ;
// imposto
if ( ! Prepare())
return false ;
// cancello
glClear( GL_COLOR_BUFFER_BIT) ;
// colore di default
glColor4f( 1, 1, 1, 1) ;
// disegno
DrawGroup( GDB_ID_ROOT) ;