Differential D12367 Diff 41308 intern/cycles/kernel/svm/svm_fresnel.h

Changeset View

Standalone View

intern/cycles/kernel/svm/svm_fresnel.h

	Show All 12 Lines
	* See the License for the specific language governing permissions and			* See the License for the specific language governing permissions and
	* limitations under the License.			* limitations under the License.
	*/			*/

	CCL_NAMESPACE_BEGIN			CCL_NAMESPACE_BEGIN

	/* Fresnel Node */			/* Fresnel Node */

	ccl_device void svm_node_fresnel(			ccl_device_noinline void svm_node_fresnel(
	ShaderData sd, float stack, uint ior_offset, uint ior_value, uint node)			ShaderData sd, float stack, uint ior_offset, uint ior_value, uint node)
	{			{
	uint normal_offset, out_offset;			uint normal_offset, out_offset;
	svm_unpack_node_uchar2(node, &normal_offset, &out_offset);			svm_unpack_node_uchar2(node, &normal_offset, &out_offset);
	float eta = (stack_valid(ior_offset)) ? stack_load_float(stack, ior_offset) :			float eta = (stack_valid(ior_offset)) ? stack_load_float(stack, ior_offset) :
	__uint_as_float(ior_value);			__uint_as_float(ior_value);
	float3 normal_in = stack_valid(normal_offset) ? stack_load_float3(stack, normal_offset) : sd->N;			float3 normal_in = stack_valid(normal_offset) ? stack_load_float3(stack, normal_offset) : sd->N;

	eta = fmaxf(eta, 1e-5f);			eta = fmaxf(eta, 1e-5f);
	eta = (sd->flag & SD_BACKFACING) ? 1.0f / eta : eta;			eta = (sd->flag & SD_BACKFACING) ? 1.0f / eta : eta;

	float f = fresnel_dielectric_cos(dot(sd->I, normal_in), eta);			float f = fresnel_dielectric_cos(dot(sd->I, normal_in), eta);

	stack_store_float(stack, out_offset, f);			stack_store_float(stack, out_offset, f);
	}			}

	/* Layer Weight Node */			/* Layer Weight Node */

	ccl_device void svm_node_layer_weight(ShaderData sd, float stack, uint4 node)			ccl_device_noinline void svm_node_layer_weight(ShaderData sd, float stack, uint4 node)
	{			{
	uint blend_offset = node.y;			uint blend_offset = node.y;
	uint blend_value = node.z;			uint blend_value = node.z;

	uint type, normal_offset, out_offset;			uint type, normal_offset, out_offset;
	svm_unpack_node_uchar3(node.w, &type, &normal_offset, &out_offset);			svm_unpack_node_uchar3(node.w, &type, &normal_offset, &out_offset);

	float blend = (stack_valid(blend_offset)) ? stack_load_float(stack, blend_offset) :			float blend = (stack_valid(blend_offset)) ? stack_load_float(stack, blend_offset) :
	Show All 29 Lines