From 3b8404ac53af970559ec9224d76da0d7a06f084d Mon Sep 17 00:00:00 2001 From: Morten Mikkelsen Date: Tue, 3 Jan 2012 22:27:30 +0000 Subject: derivative maps must take into account that texture scales can be negative --- source/blender/render/intern/source/render_texture.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'source/blender/render') diff --git a/source/blender/render/intern/source/render_texture.c b/source/blender/render/intern/source/render_texture.c index d9cabf05155..5fba0bba48c 100644 --- a/source/blender/render/intern/source/render_texture.c +++ b/source/blender/render/intern/source/render_texture.c @@ -1970,7 +1970,7 @@ static int ntap_bump_compute(NTapBump *ntap_bump, ShadeInput *shi, MTex *mtex, T auto_bump = shi->obr->ob->derivedFinal->auto_bump_scale; } { - float fVirtDim = sqrtf((float) (dimx*dimy)*mtex->size[0]*mtex->size[1]); + float fVirtDim = sqrtf(fabsf((float) (dimx*dimy)*mtex->size[0]*mtex->size[1])); auto_bump /= MAX2(fVirtDim, FLT_EPSILON); } -- cgit v1.2.3