Read new prefs: C:\Users\Vortex\AppData\Roaming\Blender Foundation\Blender\2.78\ config\userpref.blend found bundled python: C:\Program Files\Blender Foundation\Blender\2.78\python Device init success Compiling base_kernel OpenCL kernel ... Build flags: -D__NODES_MAX_GROUP__=0 -D__NODES_FEATURES__=0 -D__MAX_CLOSURE__=1 -D__NO_HAIR__ -D__NO_OBJECT_MOTION__ -D__NO_CAMERA_MOTION__ -D__NO_BAKING__ -D__ NO_VOLUME__ -D__NO_SUBSURFACE__ -D__NO_BRANCHED_PATH__ -D__NO_PATCH_EVAL__ OpenCL kernel build output: "C:\Program Files\Blender Foundation\Blender\2.78\scripts\addons\cycles\kernel\k ernels/opencl\../../kernel_projection.h", line 238: error: expression must have pointer-to-struct-or-union type float altitude = fabsf(safe_asinf(D->z)); ^ 1 error detected in the compilation of "C:\Users\Vortex\AppData\Local\Temp\OCL49 72T1.cl". Frontend phase failed compilation. OpenCL build failed: errors in console Build error: CL_BUILD_PROGRAM_FAILURE