Differential D5367 Diff 16691 source/blender/blenkernel/intern/brush.c

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source/blender/blenkernel/intern/brush.c

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ups->tex_mouse[0] = BLI_rng_get_float(brush_rng) * ups->pixel_radius;		ups->tex_mouse[0] = BLI_rng_get_float(brush_rng) * ups->pixel_radius;
ups->tex_mouse[1] = BLI_rng_get_float(brush_rng) * ups->pixel_radius;		ups->tex_mouse[1] = BLI_rng_get_float(brush_rng) * ups->pixel_radius;
}		}
}		}

/* Uses the brush curve control to find a strength value */		/* Uses the brush curve control to find a strength value */
float BKE_brush_curve_strength(const Brush *br, float p, const float len)		float BKE_brush_curve_strength(const Brush *br, float p, const float len)
{		{
float strength;		float strength = 1.0f;

if (p >= len) {		if (p >= len) {
return 0;		return 0;
}		}
else {		else {
p = p / len;		p = p / len;
		p = 1.0f - p;
}		}

strength = curvemapping_evaluateF(br->curve, 0, p);		switch (br->curve_preset) {
		case BRUSH_CURVE_CUSTOM:
		strength = curvemapping_evaluateF(br->curve, 0, 1.0f - p);
		break;
		case BRUSH_CURVE_SHARP:
		strength = p * p;
		break;
		case BRUSH_CURVE_SMOOTH:
		strength = 3.0f * p * p - 2.0f * p * p * p;
		break;
		case BRUSH_CURVE_ROOT:
		strength = sqrtf(p);
		break;
		case BRUSH_CURVE_LIN:
		strength = p;
		break;
		case BRUSH_CURVE_CONSTANT:
		strength = 1.0f;
		break;
		case BRUSH_CURVE_SPHERE:
		strength = sqrtf(2 * p - p * p);
		break;
		case BRUSH_CURVE_POW4:
		strength = p * p * p * p;
		break;
		case BRUSH_CURVE_INVSQUARE:
		strength = p * (2.0f - p);
		break;
		}

return strength;		return strength;
}		}

/* Uses the brush curve control to find a strength value between 0 and 1 */		/* Uses the brush curve control to find a strength value between 0 and 1 */
float BKE_brush_curve_strength_clamped(Brush *br, float p, const float len)		float BKE_brush_curve_strength_clamped(Brush *br, float p, const float len)
{		{
float strength = BKE_brush_curve_strength(br, p, len);		float strength = BKE_brush_curve_strength(br, p, len);
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