forked from bartvdbraak/blender
Cycles: Fix/workaround for toggling world MIS causing CUDA to fail
Seems it's just another issue with the compiler, worked around by explicitly telling not to inline some function. In theory we can unify this with CPU, but we're quite close to the release so better be safe than sorry.
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@ -37,7 +37,16 @@ typedef struct LightSample {
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#ifdef __BACKGROUND_MIS__
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#ifdef __BACKGROUND_MIS__
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ccl_device float3 background_light_sample(KernelGlobals *kg, float randu, float randv, float *pdf)
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/* TODO(sergey): In theory it should be all fine to use noinline for all
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* devices, but we're so close to the release so better not screw things
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* up for CPU at least.
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*/
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#ifdef __KERNEL_GPU__
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ccl_device_noinline
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#else
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ccl_device
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#endif
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float3 background_light_sample(KernelGlobals *kg, float randu, float randv, float *pdf)
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{
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{
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/* for the following, the CDF values are actually a pair of floats, with the
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/* for the following, the CDF values are actually a pair of floats, with the
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* function value as X and the actual CDF as Y. The last entry's function
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* function value as X and the actual CDF as Y. The last entry's function
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@ -113,7 +122,15 @@ ccl_device float3 background_light_sample(KernelGlobals *kg, float randu, float
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return -equirectangular_to_direction(u, v);
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return -equirectangular_to_direction(u, v);
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}
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}
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ccl_device float background_light_pdf(KernelGlobals *kg, float3 direction)
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/* TODO(sergey): Same as above, after the release we should consider using
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* 'noinline' for all devices.
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*/
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#ifdef __KERNEL_GPU__
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ccl_device_noinline
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#else
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ccl_device
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#endif
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float background_light_pdf(KernelGlobals *kg, float3 direction)
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{
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{
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float2 uv = direction_to_equirectangular(direction);
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float2 uv = direction_to_equirectangular(direction);
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int res = kernel_data.integrator.pdf_background_res;
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int res = kernel_data.integrator.pdf_background_res;
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