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Fix cycles using acosf in panorama render when it should use safe_acosf.

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This commit is contained in:
Brecht Van Lommel 2014-04-17 14:49:57 +02:00
parent dc847607b6
commit 2d7b53331c
1 changed files with 4 additions and 4 deletions
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8
intern/cycles/kernel/kernel_projection.h
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@ -39,7 +39,7 @@ CCL_NAMESPACE_BEGIN
ccl_device float2 direction_to_spherical(float3 dir)
{
float theta = acosf(dir.z);
float theta = safe_acosf(dir.z);
float phi = atan2f(dir.x, dir.y);
return make_float2(theta, phi);
@ -97,7 +97,7 @@ ccl_device float3 fisheye_to_direction(float u, float v, float fov)
if(r > 1.0f)
return make_float3(0.0f, 0.0f, 0.0f);
float phi = acosf((r != 0.0f)? u/r: 0.0f);
float phi = safe_acosf((r != 0.0f)? u/r: 0.0f);
float theta = r * fov * 0.5f;
if(v < 0.0f) phi = -phi;
@ -111,7 +111,7 @@ ccl_device float3 fisheye_to_direction(float u, float v, float fov)
ccl_device float2 direction_to_fisheye_equisolid(float3 dir, float lens, float width, float height)
{
float theta = acosf(dir.x);
float theta = safe_acosf(dir.x);
float r = 2.0f * lens * sinf(theta * 0.5f);
float phi = atan2f(dir.z, dir.y);
@ -132,7 +132,7 @@ ccl_device float3 fisheye_equisolid_to_direction(float u, float v, float lens, f
if(r > rmax)
return make_float3(0.0f, 0.0f, 0.0f);
float phi = acosf((r != 0.0f)? u/r: 0.0f);
float phi = safe_acosf((r != 0.0f)? u/r: 0.0f);
float theta = 2.0f * asinf(r/(2.0f * lens));
if(v < 0.0f) phi = -phi;