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intern/cycles/kernel/svm/svm_voxel.h
| Show All 13 Lines | |||||
| * limitations under the License. | * limitations under the License. | ||||
| */ | */ | ||||
| CCL_NAMESPACE_BEGIN | CCL_NAMESPACE_BEGIN | ||||
| /* TODO(sergey): Think of making it more generic volume-type attribute | /* TODO(sergey): Think of making it more generic volume-type attribute | ||||
| * sampler. | * sampler. | ||||
| */ | */ | ||||
| ccl_device void svm_node_tex_voxel( | ccl_device_noinline int svm_node_tex_voxel( | ||||
| KernelGlobals *kg, ShaderData *sd, float *stack, uint4 node, int *offset) | const KernelGlobals *kg, ShaderData *sd, float *stack, uint4 node, int offset) | ||||
| { | { | ||||
| uint co_offset, density_out_offset, color_out_offset, space; | uint co_offset, density_out_offset, color_out_offset, space; | ||||
| svm_unpack_node_uchar4(node.z, &co_offset, &density_out_offset, &color_out_offset, &space); | svm_unpack_node_uchar4(node.z, &co_offset, &density_out_offset, &color_out_offset, &space); | ||||
| #ifdef __VOLUME__ | #ifdef __VOLUME__ | ||||
| int id = node.y; | int id = node.y; | ||||
| float3 co = stack_load_float3(stack, co_offset); | float3 co = stack_load_float3(stack, co_offset); | ||||
| if (space == NODE_TEX_VOXEL_SPACE_OBJECT) { | if (space == NODE_TEX_VOXEL_SPACE_OBJECT) { | ||||
| co = volume_normalized_position(kg, sd, co); | co = volume_normalized_position(kg, sd, co); | ||||
| } | } | ||||
| else { | else { | ||||
| kernel_assert(space == NODE_TEX_VOXEL_SPACE_WORLD); | kernel_assert(space == NODE_TEX_VOXEL_SPACE_WORLD); | ||||
| Transform tfm; | Transform tfm; | ||||
| tfm.x = read_node_float(kg, offset); | tfm.x = read_node_float(kg, &offset); | ||||
| tfm.y = read_node_float(kg, offset); | tfm.y = read_node_float(kg, &offset); | ||||
| tfm.z = read_node_float(kg, offset); | tfm.z = read_node_float(kg, &offset); | ||||
| co = transform_point(&tfm, co); | co = transform_point(&tfm, co); | ||||
| } | } | ||||
| float4 r = kernel_tex_image_interp_3d(kg, id, co, INTERPOLATION_NONE); | float4 r = kernel_tex_image_interp_3d(kg, id, co, INTERPOLATION_NONE); | ||||
| #else | #else | ||||
| float4 r = make_float4(0.0f, 0.0f, 0.0f, 0.0f); | float4 r = make_float4(0.0f, 0.0f, 0.0f, 0.0f); | ||||
| #endif | #endif | ||||
| if (stack_valid(density_out_offset)) | if (stack_valid(density_out_offset)) | ||||
| stack_store_float(stack, density_out_offset, r.w); | stack_store_float(stack, density_out_offset, r.w); | ||||
| if (stack_valid(color_out_offset)) | if (stack_valid(color_out_offset)) | ||||
| stack_store_float3(stack, color_out_offset, make_float3(r.x, r.y, r.z)); | stack_store_float3(stack, color_out_offset, make_float3(r.x, r.y, r.z)); | ||||
| return offset; | |||||
| } | } | ||||
| CCL_NAMESPACE_END | CCL_NAMESPACE_END | ||||