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AlanWu

Rotation Texture and Batch Drawing(Texture Atlas)

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i have many different texture in a draw call so i use texture atlas

but if i want some of those textures have different rotation,what could i do?

Help! Thanks!

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This is a really bizarre problem.  Short of just rotating the quad like Irreversible said, maybe you can just apply a rotation matrix to your quad's texture coordinates?

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I'd opt for texture matrix manipulation myself. Preventing the surrounding textures in the atlas from intruding on the rastered poly is something else tho.

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Any object that is texture mapped, can be rotated freely, without a slightest change in texture coordinates. That's how it works. Your only ever need to rotate a texture itself is when you want to somewhat animate it on all objects at the same time, without having to change the mapping.

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