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### My texture is black, what am I doing wrong?
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If a texture is 'incomplete', only black gets sampled. One common reason is that mip-mapping is activated for filtering but the texture has no mip-maps. For most texture types using mip-maping as a filter mode is the default! So either call generateMipmaps() on them or change the minification filter.
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### Why are my textures upside down?
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The coordinate system of OpenGL starts at the bottom on the left while the coordinate systems of some fileformats start at the top left corner. A coordinatesystem transformation is not performed while loading the image. If the image gets loaded manually using an intermediate TextureData object, TextureData::flipVertically() can be called. |
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