Lesson 10: Texturing issue

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1 comment, last by eDuDe 12 years ago
I have a modified (just using classes and a different variable naming scheme) version of Lesson 10 working, but I get this weird texturing issue and the only thing I can think of is it is related to loading in textures using SOIL. I even went as far as modifying the sample code to use SOIL, and I get the same result:

http://imgur.com/24gGJ

Here is my texture loading code, which seemed to work for previous lessons (I've been doing them sequently), debug code stripped out:


texture[0] = SOIL_load_OGL_texture( "Assets/2D/Mud.bmp",
SOIL_LOAD_AUTO,
SOIL_CREATE_NEW_ID,
SOIL_FLAG_INVERT_Y );

texture[1] = SOIL_load_OGL_texture( "Assets/2D/Mud.bmp",
SOIL_LOAD_AUTO,
SOIL_CREATE_NEW_ID,
SOIL_FLAG_INVERT_Y );

texture[2] = SOIL_load_OGL_texture( "Assets/2D/Mud.bmp",
SOIL_LOAD_AUTO,
SOIL_CREATE_NEW_ID,
SOIL_FLAG_INVERT_Y | SOIL_FLAG_MIPMAPS );

glBindTexture(GL_TEXTURE_2D, texture[0]);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST);

glBindTexture(GL_TEXTURE_2D, texture[1]);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR);

glBindTexture(GL_TEXTURE_2D, texture[2]);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR_MIPMAP_NEAREST);
.


Any idea what is up?
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This looks like UV coordinates problem. Are you sure you are setting UV coordinates (glTexCoord2f) for every vertex?
OpenGL fanboy.
I'm loading it all from the world file given in the sample:
float x, y, z, u, v;
int tris;
char textline[255];
FILE *filein = fopen( "Assets/Worlds/World.txt", "rt");
ReadStr( filein, textline );
sscanf( textline, "NUMPOLLIES %d\n", &tris);
sector1.numTriangles = tris;
sector1.triangles = new triangle[sector1.numTriangles];
for ( int triangles = 0 ; triangles < sector1.numTriangles ; triangles++ )
{
for ( int vert = 0 ; vert < 3 ; vert++ )
{
ReadStr(filein, textline);
sscanf(textline, "%f %f %f %f %f", &x, &y, &z, &u, &v);
sector1.triangles[triangles].vertices[vert].x = x ;
sector1.triangles[triangles].vertices[vert].y = y ;
sector1.triangles[triangles].vertices[vert].z = z ;
sector1.triangles[triangles].vertices[vert].u = u ;
sector1.triangles[triangles].vertices[vert].v = v ;
}
}
fclose(filein);


It looked fine when stepping through the code, and I pretty much copy/pasted the tutorial project into mine with the modified texture loading and got the same result which is why I believe it has something to do with misusing SOIL.

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