Will using glVertex3s instead of glVertex3f reduce the size of my display list?

Graphics and GPU Programming Programming

Started by Necrolyte January 14, 2011 11:51 AM

1 comment, last by V-man 13 years, 3 months ago

100

Author

January 14, 2011 11:51 AM

Will using glVertex3s instead of glVertex3f reduce the size of my display list?
since glVertex3s uses shorts which are 16bits and glVertex3f uses floats with are 32bits...

CableGuy

1,335

January 14, 2011 12:14 PM

Most probably not since internally the driver stores the data in a form which is convenient to the graphics card which is probably floating point.
How did you come to the conclusion that display lists size is your memory bottleneck?

V-man

813

January 15, 2011 01:08 AM

Display lists are old news. Start using VBO.

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);

Will using glVertex3s instead of glVertex3f reduce the size of my display list?

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Will using glVertex3s instead of glVertex3f reduce the size of my display list?

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