Texture problem

OpenGL OpenGL: Advanced Coding
1

Hi,
I have set my texture in this way:
glBindTexture(GL_TEXTURE_2D, 6);

glPixelStorei(GL_UNPACK_ALIGNEMENT, 1);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);

glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 256, 256, 0, GL_RGB, GL_FLOAT, Image6);

The texture in the application result very dark although the image is good.

Could you help me ?

2

How does it look if you set :

glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);

perhaps GL_MODULATE is responsible for the dark look of the textured object.

3

Use glColor3f(1.0,1.0,1.0) for your textured polygon, this way you can keep GL_MODULATE and have true texture color, if you want to make things darker fade your polys color from white to black and texture will fade to black along with it.

4

… and make sure you have disabled lighting. If lighting is enabled, make sure your polygon is facing the light (else it’ll be dark).

Y.