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rotation

Started by Wes Henwood Jun 25, 2000 at 9:14 AM 2 replies 350+ views

Original Post

Jun 25, 2000 at 9:14 AM

What do you have to do to a DDBLTFX structure to perform bitmap rotation? I''ve tried to set the dwRotationAngle field, and when blitting I''ve used the DDBLT_ROTATIONANGLE flag. But, the things I try to rotate do not appear on the screen.

WitchLord

Mod

1,118

WitchLord

Jun 25, 2000 at 9:18 AM

You graphic card probably doesn''t support that operation.

- WitchLord

furby100

159

furby100

Jun 25, 2000 at 10:40 AM

Check the error from the function. If it says something about not having any hardware support for it, then like Witchlord said, you do not have the hardware. Unfortunately the DirectDraw HEL does not have support for rotation, so you have to write your own rotater or prerotate the sprites.

Bordem

Jun 25, 2000 at 5:25 PM

the best way Ive found to do it is to use D3D to rotate a quad and texture map that

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