TG Toon Texture Map Parameters |
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TG TOON TEXTURE MAP Pre-Quantise Saturation TG TOON TEXTURE MAP PROJECTED |
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TG TOON TEXTURE MAP |
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Range : 0 to 50 Modifies the colour saturation prior to carrying out the colour quantisation. Values of less than 1 will reduce the colour saturation (a value of zero giving a greyscale image), and values of greater than 1 will increase the colour saturation. Increasing the colour saturation prior to quantising can give improved results from the colour quantisation calculations (and can also allow or require a lower setting in the Colour Steps parameter) - quite often, the quantistion will generate “new” colours not in the original colour shader, since the colours get shifted toward a nearest step (so a pink or purple might appear where only orange was visible previously); raising this value above 1 can offset that, and give more of the “expected” colours. However, also bear in mind that quite often, a value above 1 in this parameter will be creating a colour that is “impossible” to render (eg red = 1025, where red can only vary from 0 to 255 on the display). The interpretation of these values in the final render may be somewhat unusual! In particular, high values here with a Post-Quantise Saturation of still around 1 (that is, the saturation is not reduced after the quantisation) may result in a darkening of the final rendered colour. |
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Range : 0 to 20 Controls the colour quantisation, that is, breaking up the colours from smoothly varying into a series of bands. This parameter controls how many bands to split the colours into, a lower number resulting in harsher colour changes, and a higher value giving a result almost indistinguishable from no quantisation. A higher value in the Pre-Quantise Saturation parameter can give improved results, or allow / require lower values in this parameter. Note that setting this value to zero will turn off the colour quantisation, giving faster processing. |
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Range : 0 to 20 Controls the quantisation of the brightness, resulting in a series of bands of brightness. Note that brightness is NOT affected by saturation, so the Pre-Quantisation Saturation parameter has no effect. These calculations are also independent of the colour quantisation calculations. Note that settings this value to zero will turn off the brightness quantisation, giving faster processing. |
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Range : 0 to 50 Modifies the colour saturation after the quantisation has been done. Again, values of less than 1 reduce the colour saturation (0 giving a greyscale result), and values of greater than 1 increase the colour saturation. This parameter can be used to compensate for the changes made by the Pre-Quantise Saturation, by reducing the final colour saturation displayed, but allowing the saturation to be increased prior to the colour quantise calculations. |
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Range : 0 to 10 In order to achieve a simple blur, the shader takes the colour from the current point in the image, and from surrounding points. The surrounding points are offset by the amount set in the Sampling Offset parameter, which defines how far to offset each sample per step. The Sample Steps parameter defines how many steps to take (with each offset by the amount set in the Sampling Offset parameter). Higher values in this parameter will give a greater blur effect, but will also result in slower rendering. |
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Range : 0 to 1 This parameter defines how far to offset the sample of the texture map per step (with the number of steps set in the Sample Steps parameter). Higher values give a bigger offset per sample, so too high can make the multiple samples appear as separate images rather than as a blur, and too low may not give enough difference between samples to result in a good blur. |
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Range : 0 to 1 for Repeat parameters; -1 to 1 for Offset parameters These control the texture mapping, in the conventional and expected manner. |
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Range : image The image to be used as the texture map. |
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TG TOON TEXTURE MAP PROJECTED |
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previous parameters as TG Toon Texture Map This shader works in the same way as TG Toon Texture Map, only the texture is projected based on the screen / final rendered image co-ords. The one new parameter is : |
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Range : Checked, Unchecked When checked, the projection from the screen / final render is exact. Object geometry, location, viewing angle etc will not change the result. When unchecked, “incorrect” calculations are used for the screen / final render image projection. This gives an effect which is dependent upon the screen / final rendered image co-ords, but is still modified by the geometry of the object, and the viewing angle, viewing distance, etc - this can add some unusual variation into the look, as objects (or the camera) move around a scene. |
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TG TOON TEXTURE MAP NOISE |
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previous parameters as TG Toon Texture Map This shader works in the same way as TG Toon Texture Map, only it includes noise processing for the brightness and colour quantisations. The noise parameters are the conventional ones used in TG shaders. |
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TG TOON TEXTURE MAP NOISE PROJECTED |
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previous parameters as TG Toon Texture Map Noise This shader works in the same way as TG Toon Texture Map Noise, but projects the texture map from the screen / final rendered image coords; it also includes the option to use the screen / final rendered image coords as the mapping for the noise too. |
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TG Toon Texture Map Parameters |
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