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opengl mouse, sdl


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#1 mentaman   Members   -  Reputation: 99

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Posted 07 February 2012 - 02:44 AM

How can I resize the sdl mouse size, to opengl size.

window's with: 640,
window's height: 480

prespective:
gluPerspective( 60.0, ratio, 1.0, 1024.0 );


glTranslatef( 0.f, 0.f, -25.f );

thanks a lot!

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#2 V-man   Members   -  Reputation: 805

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Posted 07 February 2012 - 08:43 AM

Make the SDL mouse (which is the OS mouse) non visible.
Render a mouse using GL in ortho projection.
http://www.opengl.org/wiki/FAQ#How_to_render_in_pixel_space
Sig: http://glhlib.sourceforge.net
an open source GLU replacement library. Much more modern than GLU.
float matrix[16], inverse_matrix[16];
glhLoadIdentityf2(matrix);
glhTranslatef2(matrix, 0.0, 0.0, 5.0);
glhRotateAboutXf2(matrix, angleInRadians);
glhScalef2(matrix, 1.0, 1.0, -1.0);
glhQuickInvertMatrixf2(matrix, inverse_matrix);
glUniformMatrix4fv(uniformLocation1, 1, FALSE, matrix);
glUniformMatrix4fv(uniformLocation2, 1, FALSE, inverse_matrix);

#3 mentaman   Members   -  Reputation: 99

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Posted 08 February 2012 - 03:07 AM

Thank you a lot :)




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