Cycles: Correct isfinite check used in integrator

Use fast-math friendly version of this function.

We should probably avoid unsafe fast math, but this is to be done with
real care with all the benchmarks properly done.

For now comitting much safer fix.

1 files changed, 2 insertions, 2 deletions

diff --git a/intern/cycles/kernel/kernel_accumulate.h b/intern/cycles/kernel/kernel_accumulate.h
index 6c3ee6b8098..c589c112cc2 100644
--- a/intern/cycles/kernel/kernel_accumulate.h
+++ b/intern/cycles/kernel/kernel_accumulate.h
@@ -399,7 +399,7 @@ ccl_device_inline float3 path_radiance_clamp_and_sum(KernelGlobals *kg, PathRadi
 		float sum = fabsf((L_sum).x) + fabsf((L_sum).y) + fabsf((L_sum).z);
 
 		/* Reject invalid value */
-		if(!isfinite(sum)) {
+		if(!isfinite_safe(sum)) {
 			kernel_assert(!"Non-finite sum in path_radiance_clamp_and_sum!");
 			L_sum = make_float3(0.0f, 0.0f, 0.0f);
 
@@ -468,7 +468,7 @@ ccl_device_inline float3 path_radiance_clamp_and_sum(KernelGlobals *kg, PathRadi
 
 	/* Reject invalid value */
 	float sum = fabsf((L_sum).x) + fabsf((L_sum).y) + fabsf((L_sum).z);
-	if(!isfinite(sum)) {
+	if(!isfinite_safe(sum)) {
 		kernel_assert(!"Non-finite final sum in path_radiance_clamp_and_sum!");
 		L_sum = make_float3(0.0f, 0.0f, 0.0f);
 	}