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14 | <TITLE>Hardware Buffers In OGRE: Texture Types</TITLE> |
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37 | <H3> 2.8.3 Texture Types </H3> |
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38 | <!--docid::SEC30::--> |
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39 | <P> |
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40 | |
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41 | There are four types of textures supported by current hardware, three of them only differ in the amount of dimensions |
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42 | they have (one, two or three). The fourth one is special. The different texture types are: |
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43 | </P><P> |
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44 | |
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45 | <DL COMPACT> |
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46 | |
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47 | <DT>TEX_TYPE_1D |
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48 | <DD>One dimensional texture, used in combination with 1D texture coordinates. |
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49 | <DT>TEX_TYPE_2D |
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50 | <DD>Two dimensional texture, used in combination with 2D texture coordinates. |
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51 | <DT>TEX_TYPE_3D |
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52 | <DD>Three dimensional volume texture, used in combination with 3D texture coordinates. |
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53 | <DT>TEX_TYPE_CUBE_MAP |
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54 | <DD>Cube map (six two dimensional textures, one for each cube face), used in combination with 3D texture coordinates. |
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55 | <P> |
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56 | |
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57 | </DL> |
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58 | <P> |
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59 | |
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60 | <A NAME="SEC31"></A> |
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61 | <H3> Cube map textures </H3> |
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62 | <!--docid::SEC31::--> |
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63 | <P> |
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64 | |
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65 | The cube map texture type (TEX_TYPE_CUBE_MAP) is a different beast from the others; a cube map texture represents a series of six two dimensional images addressed by 3D texture coordinates. |
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66 | |
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67 | <DL COMPACT> |
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68 | <DT>+X (face 0) |
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69 | <DD>Represents the positive x plane (right). |
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70 | <DT>-X (face 1) |
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71 | <DD>Represents the negative x plane (left). |
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72 | <DT>+Y (face 2) |
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73 | <DD>Represents the positive y plane (top). |
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74 | <DT>-Y (face 3) |
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75 | <DD>Represents the negative y plane (bottom). |
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76 | <DT>+Z (face 4) |
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77 | <DD>Represents the positive z plane (front). |
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78 | <DT>-Z (face 5) |
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79 | <DD>Represents the negative z plane (back). |
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80 | </DL> |
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81 | <P> |
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82 | |
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83 | <A NAME="Pixel Formats"></A> |
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