Easily install and launch Quake maps with the cross-platform Differences
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engines:software_vs_glquake [2013/02/14 07:19] SiPlus [Affine texture mapping] |
engines:software_vs_glquake [2013/02/14 07:21] SiPlus [Affine texture mapping] |
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| You can see screenshots of the issue in "Non-square pixels" section. | You can see screenshots of the issue in "Non-square pixels" section. | ||
| - | The 1st screenshot demonstrates affine texture mapping in software rendering mode. The texture looks skewed and is aligned differently on each pair of triangles in a quad. The pixels always have the same width and height, no matter how far they are from the player. | + | The 1st screenshot demonstrates affine texture mapping in software rendering mode. The texture looks skewed and is aligned differently on each pair of triangles. The pixels always have the same width and height, no matter how far they are from the player. |
| The 2nd and 3rd screenshots show perspective-correct texture mapping. The metal shine is now a straight line, and distant pixels appear smaller than the close ones. | The 2nd and 3rd screenshots show perspective-correct texture mapping. The metal shine is now a straight line, and distant pixels appear smaller than the close ones. | ||
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| + | On certain video cards, the effect can be enabled by enabling console variable "gl_affinemodels". | ||