Ive been trying to get multi texturing to work,but with no avail. Basicly im trying to make the textures blend only below the 50 mark on my height map. But when i run it, it jus says that it crashed, and to send msg to M$. Im using Glext.h for further info.
Here is my Main.cpp:
//MULTITEXTURING
PFNGLMULTITEXCOORD2FARBPROC glMultiTexCoord2fARB= NULL;
PFNGLACTIVETEXTUREARBPROC glActiveTextureARB= NULL;
//glActiveTextureARB = (PFNGLACTIVETEXTUREARBPROC) wglGetProcAddress("glActiveTextureARB");
//glMultiTexCoord2fARB = (PFNGLMULTITEXCOORD2FARBPROC) wglGetProcAddress("glMultiTexCoord2fARB");
//I had to comment out this ^^ bit cos it kept giving me errors.
My Terrain.cpp bit:
//HEIGHTMAP RENDERING FUNCTION
void RenderHeightMap(BYTE pHeightMap[])
{
int X=0;
int Y=0;
int x, y, z;
//If there is no data return
if(!pHeightMap) return;
//For loops
for ( X = 0; X < (MAP_SIZE-STEP_SIZE); X += STEP_SIZE )
for ( Y = 0; Y < (MAP_SIZE-STEP_SIZE); Y += STEP_SIZE )
{
// Get The (X, Y, Z) Value For The Bottom Left Vertex
x = X;
y = Height(pHeightMap, X, Y );
z = Y;
if(y<50)
{
glActiveTextureARB(GL_TEXTURE1_ARB);
glBindTexture(GL_TEXTURE_2D, TexID[2]);
glEnable(GL_TEXTURE_2D);
}else{
glBindTexture(GL_TEXTURE_2D, TexID[6]);
}
glBegin(GL_QUADS);
glNormal3f(0,1,0);
glMultiTexCoord2fARB(GL_TEXTURE1_ARB, 0, 0);glTexCoord2d(0,0);glVertex3i(x, y, z); // Send This Vertex To OpenGL To Be Rendered
x = X;
y = Height(pHeightMap, X, Y + STEP_SIZE );
z = Y + STEP_SIZE ;
glMultiTexCoord2fARB(GL_TEXTURE1_ARB, 0, 1);glTexCoord2d(0,1);glVertex3i(x, y, z); // Send This Vertex To OpenGL To Be Rendered
// Get The (X, Y, Z) Value For The Top Right Vertex
x = X + STEP_SIZE;
y = Height(pHeightMap, X + STEP_SIZE, Y + STEP_SIZE );
z = Y + STEP_SIZE ;
glMultiTexCoord2fARB(GL_TEXTURE1_ARB, 1, 1);glTexCoord2d(1,1);glVertex3i(x, y, z); // Send This Vertex To OpenGL To Be Rendered
// Get The (X, Y, Z) Value For The Bottom Right Vertex
x = X + STEP_SIZE;
y = Height(pHeightMap, X + STEP_SIZE, Y );
z = Y;
glMultiTexCoord2fARB(GL_TEXTURE1_ARB, 1, 0);glTexCoord2d(1,0);glVertex3i(x, y, z);
glEnd();
}
//End
glActiveTextureARB(GL_TEXTURE1_ARB);
glDisable(GL_TEXTURE_2D);
//Set color to white, so other stuff dosnt go bright blue, etc.
glColor4f(1,1,1,1);
}
An my header:
//MULTITEXTURING
#define GL_TEXTURE0_ARB 0x84C0
#define GL_TEXTURE1_ARB 0x84C1
#define GL_COMBINE_ARB 0x8570
#define GL_RGB_SCALE_ARB 0x8573
// Here are the multitexture function prototypes
typedef void (APIENTRY * PFNGLMULTITEXCOORD2FARBPROC) (GLenum target, GLfloat s, GLfloat t);
typedef void (APIENTRY * PFNGLACTIVETEXTUREARBPROC) (GLenum target);
// Here we extern our function pointers for multitexturing capabilities
extern PFNGLMULTITEXCOORD2FARBPROC glMultiTexCoord2fARB;
extern PFNGLACTIVETEXTUREARBPROC glActiveTextureARB;
If u cant help me with this,could you at least point me to a non budget tutorial, ive tryed Gametutorials.com''s one.
------------ "Here lies a toppled God,His fall was not a small one,We but built his pedastle,A narrow, and a tall one" Frank Herbert (Dune:Messiah)
