Fix T85225: Variable scope in ridged multi-fractal noise
This patch fixes a bug introduced in rB74188e65028d268af887ab2140e4253087410c1e. The commit incorrectly moved the declaration and intialization of the variable `pwr` inside the loop. Since the value was originally modified in each iteration based on it's previous value and `pwHL` through `pwr *= pwHL`, this change in scope was wrong. It resetted the value in each iteration. This patch moves the declaration of `pwr` outside the loop again. Reviewed By: JacquesLucke Differential Revision: https://developer.blender.org/D10258
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@ -1636,9 +1636,9 @@ float BLI_noise_mg_ridged_multi_fractal(float x,
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float signal = powf(offset - fabsf(noisefunc(x, y, z)), 2);
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float result = signal;
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float pwHL = powf(lacunarity, -H);
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float pwr = pwHL; /* starts with i=1 instead of 0 */
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for (int i = 1; i < (int)octaves; i++) {
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float pwHL = powf(lacunarity, -H);
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float pwr = pwHL; /* starts with i=1 instead of 0 */
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x *= lacunarity;
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y *= lacunarity;
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z *= lacunarity;
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