How can I specify the color of backside of a scene when I use CCTransitionPageTurn? In cocos2d-iphone 1.0, I did some modifications in blot() in CCGrid.m like this:
NSInteger n = gridSize*.x * gridSize*.y;
// Default GL states: GL_TEXTURE_2D, GL_VERTEX_ARRAY, GL_COLOR_ARRAY, GL_TEXTURE_COORD_ARRAY
// Needed states: GL_TEXTURE_2D, GL_VERTEX_ARRAY, GL_TEXTURE_COORD_ARRAY
// Unneeded states: GL_COLOR_ARRAY
//enable culling, the default cull face is back
glEnable(GL_CULL_FACE);
//now only the front facing polygons are drawn
glDisableClientState(GL_COLOR_ARRAY);
glVertexPointer(3, GL_FLOAT, 0, vertices);
glTexCoordPointer(2, GL_FLOAT, 0, texCoordinates);
glDrawElements(GL_TRIANGLES, (GLsizei) n*6, GL_UNSIGNED_SHORT, indices);
// This is very important, otherwise the backside of picture will be random color
glDisable(GL_TEXTURE_2D);
//change the winding of what OpenGl considers front facing
//only the back facing polygons will be drawn
//this works better then changing the cull face
glFrontFace(GL_CW);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glColor4ub(255,255,255,255);
glDrawElements(GL_TRIANGLES, (GLsizei) n*6, GL_UNSIGNED_SHORT, indices);
//restore GL default states
glFrontFace(GL_CCW);
glDisable(GL_CULL_FACE);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glEnableClientState(GL_COLOR_ARRAY);
This is cpp code, I think I can use in cocos2d-x. But unfortunately, this code doesn’t work for 2.0. Can anybody help me to translate this to 2.0 ? Or is there alternative way to set color in backside of a scene during CCTransitionPageTurn? Thanks