Loading Textures with SOIL?

Graphics and GPU Programming Programming OpenGL

Started by eDuDe April 11, 2012 04:55 AM

2 comments, last by WhiskyJoe 12 years ago

122

Author

April 11, 2012 04:55 AM

I'm runnning into a goofy texturing issue while trying to implemented this OpenGL tutorial (NeHe Lesson 10), and I've narrowed it down to how I'm loading textures using SOIL. Unfortunately this appeared to be working in previous lessons so I'm kinda lost on what to do.

Any ideas?

http://imgur.com/24gGJ

Should be tiled, not stretched and facing one direction.

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);

WhiskyJoe

1,795

April 12, 2012 01:39 PM

Never done the tutorial, so can't really comment on that, however, you are loading the same texture 3 times. Perhaps the purpose of the tutorial was to show off the different parameters. To make a texture tile, you should use the following parameters:

glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );

Hope it helps

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eDuDe

122

Author

April 15, 2012 02:20 AM

From what I understand of SOIL, I was loading the same texture but with two different methods (generating mipmaps for one, not for the other two). It is just laid out that way so I have an easier time staring at it trying to figure out what was wrong.

WhiskyJoe

1,795

April 15, 2012 10:09 AM

Yeah could be that it does that under the hood, I haven't checked the depths of soil yet. Doesn't do any harm anyway. But did the parameters work?

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Loading Textures with SOIL?

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