V-Ray fails to compile for Intel HD 4400 and probably any iGPU due to common runtime.

[UUSRD]

Reading the V-Ray output log it is clear it fails to compile the raytracer for Intel HD 4400 OpenCL runtime. It doesn't matter the scene's complexity it happens always.

Qt: Untested Windows version 6.2 detected!

Successfully initialized spawner. Waiting for jobs...Received TM_START_RENDER from 127.0.0.1Starting DR session from 127.0.0.1Receiving DR scene from 127.0.0.1[DR] getting sequence data...[DR] Calling beginSeqeunce()Preparing renderer...Preparing scene for rendering...OpenCL renderer requested.loadLibrary(C:\ProgramData\ASGVIS\Common\x64\vc10\Distributed Rendering\rt_opencl.dll)Found plugin "RTOpenCL"Plugin library "C:\ProgramData\ASGVIS\Common\x64\vc10\Distributed Rendering\rt_opencl.dll" loaded.1 plugin(s) loaded successfullyOpenCL renderer plugin successfully loaded from "C:\ProgramData\ASGVIS\Common\x64\vc10\Distributed Rendering\rt_opencl.dll"OpenCL renderer plugin instance successfully created.EXT_RTOPENCL interface obtained successfully from OpenCL renderer plugin instance.[DR] getting frame data...[DR] frame number is 0[DR] Calling beginFrame()Preparing camera sampler.Preparing scene for frame...Compiling geometry...Preparing ray server. Building SDTree for GPU Building SDTree for GPU Scene is empty.Preparing direct light manager.Preparing global light manager.[DR] Calling renderImage()Running RTEngineInitializing OpenCL renderer (single kernel version)...Querying for OpenCL devices...Environment variable VRAY_OPENCL_PLATFORMS_x64 not found - using all available devicesFound 2 OpenCL platformsUsing the following OpenCL devices:Intel(R) OpenCL Intel(R) Core(TM) i7-4500U CPU @ 1.80GHzIntel(R) OpenCL Intel(R) HD Graphics 4400NVIDIA CUDA GeForce GT 750MCPU TUPLE SIZE = 2Using memory buffers for texturesUsing global ray statescl_nv_compiler_options extension not found.Building OpenCL trace program for device Intel(R) OpenCL_Intel(R) HD Graphics 4400...Error Program build failure (-11) at line 1467 , in file ./src/opencl_main.cpp !!!

Failed to compile OpenCL kernels, falling back to CPU code.

buildProgram() failed for device 0initDevices() failed.Number of lights: 0Number of area lights: 0Number of moving area lights: 0Total number of lights added by updateLights(): 0Setting up 4 thread(s) Number of raycasts: 0 Camera rays: 0 Shadow rays: 0 GI rays: 0 Reflection rays: 0 Refraction rays: 0 Unshaded rays: 0 Clearing global light manager. Clearing direct light manager. Clearing ray server. Clearing geometry. Number of intersectable primitives: 0 SD triangles: 0 MB triangles: 0 Static primitives: 0 Moving primitives: 0 Infinite primitives: 0 Clearing camera image sampler. Clearing camera sampler. Clearing DMC sampler. Clearing path sampler. Clearing color mapper. Scene constructed in 4.9 seconds Preparing renderer... Preparing scene for rendering... [RenderView] startCameraTime=0.000000, endCameraTime=1.033333 [RenderView] numCameraTMs=62, numFrames=31, frameSamples=2 OpenCL renderer requested. OpenCL renderer plugin already loaded. OpenCL renderer plugin instance successfully created. EXT_RTOPENCL interface obtained successfully from OpenCL renderer plugin instance. [RenderView] startCameraTime=0.000000, endCameraTime=1.033333 [RenderView] numCameraTMs=62, numFrames=31, frameSamples=2 Preparing camera sampler. Preparing scene for frame... Compiling geometry... Preparing ray server. Building SDTree for GPU Building SDTree for GPU Scene bounding box is [-28.7711,-29.052,3.27523]-[28.1591,30.7112,197.953] Preparing direct light manager. Preparing global light manager. Number of lights: 2 Number of area lights: 0 Number of moving area lights: 0 Total number of lights added by updateLights(): 1Writing crash dump to "C:\Users\(*)\AppData\Local\Temp\VRay.dmp"

[Jose_H_Intel1]

Would you please provide the http://www.intel.com/support/graphics/sb/cs-009476.htm Intel® HD Graphics report and DxDiag report (Press Windows* key + R key, type "dxdiag", click on "Save All Information…").

[UUSRD]

http://www.intel.com/support/graphics/sb/cs-009476.htm Intel® HD Graphics report: http://pastebin.com/KY9WU3fH Intel(R) HD Graphics 4400 - Pastebin.com

DxDiag: http://pastebin.com/UF1RvfJd DxDiag - Pastebin.com

[Jose_H_Intel1]

Thanks, I have reported your issue. I will keep you informed.

[Raghupathi_M_Intel · Accepted solution]

Hi,

For OpenCL issues and support please post on the OpenCL support forum https://software.intel.com/en-us/forums/intel-opencl-sdk here.

It looks like you are getting build failure. Is there any way you can attach your kernel?

Thanks,

Raghu