Hi,

If I use this code, I get the anticipated results, a texture tiled 2x:

Code:
function mtlEffect_init()

{

      
   float rotation_matrix[16] =
		{ 1.0, 0.0, 0.0, 0.0,
		  0.0, 1.0,	0.0, 0.0,
		  0.0, 0.0, 1.0, 0.0,
		  0.0, 0.0, 0.0, 1.0 };
		  
	
	float temp_matrix[16] =
		{ 1.0, 0.0, 0.0, 0.0,
		  0.0, 1.0,	0.0, 0.0,
		  0.0, 0.0, 1.0, 0.0,
		  0.0, 0.0, 0.0, 1.0 };	  
		  
			
	// scale the texture
	rotation_matrix[0] = 2;
	rotation_matrix[5] = 2;
	
	mat_set(temp_matrix, rotation_matrix);
	
	mat_effect1 = temp_matrix; 
	 
}




But if I use this code I don't. Am I misinterpreting the usage from the manual?

Code:
function mtlEffect_init()

{

      
   float rotation_matrix[16] =
		{ 1.0, 0.0, 0.0, 0.0,
		  0.0, 1.0,	0.0, 0.0,
		  0.0, 0.0, 1.0, 0.0,
		  0.0, 0.0, 0.0, 1.0 };
		  
	
	float temp_matrix[16];	  
		  
			
	// scale the texture
	rotation_matrix[0] = 2;
	rotation_matrix[5] = 2;
	
	mat_set(temp_matrix, rotation_matrix);
	
	mat_effect1 = temp_matrix; 
	 
}




And even if I do this I get the results like the second image:

Code:
function mtlEffect_init()

{

      
   float rotation_matrix[16];
		  
	mat_identity(rotation_matrix);
			
	// scale the texture
	rotation_matrix[0] = 2;
	rotation_matrix[5] = 2;
	
	mat_effect1 = rotation_matrix; 
	 
}


I'm wondering why, but its not clear in the manual.

Thanks for any clarification.

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