forked from bartvdbraak/blender
Brecht Van Lommel
c18712e868
This to avoids build conflicts with libc++ on FreeBSD, these __ prefixed values are reserved for compilers. I apologize to anyone who has patches or branches and has to go through the pain of merging this change, it may be easiest to do these same replacements in your code and then apply/merge the patch. Ref T37477.
161 lines
4.6 KiB
C
161 lines
4.6 KiB
C
/*
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* Copyright 2011-2013 Blender Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License
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*/
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CCL_NAMESPACE_BEGIN
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/* Attribute Node */
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ccl_device void svm_node_attr_init(KernelGlobals *kg, ShaderData *sd,
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uint4 node, NodeAttributeType *type,
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NodeAttributeType *mesh_type, AttributeElement *elem, int *offset, uint *out_offset)
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{
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if(sd->object != ~0) {
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/* find attribute by unique id */
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uint id = node.y;
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uint attr_offset = sd->object*kernel_data.bvh.attributes_map_stride;
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#ifdef __HAIR__
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attr_offset = (sd->segment == ~0)? attr_offset: attr_offset + ATTR_PRIM_CURVE;
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#endif
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uint4 attr_map = kernel_tex_fetch(__attributes_map, attr_offset);
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while(attr_map.x != id) {
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attr_offset += ATTR_PRIM_TYPES;
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attr_map = kernel_tex_fetch(__attributes_map, attr_offset);
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}
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/* return result */
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*elem = (AttributeElement)attr_map.y;
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*offset = as_int(attr_map.z);
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*mesh_type = (NodeAttributeType)attr_map.w;
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}
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else {
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/* background */
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*elem = ATTR_ELEMENT_NONE;
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*offset = 0;
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*mesh_type = (NodeAttributeType)node.w;
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}
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*out_offset = node.z;
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*type = (NodeAttributeType)node.w;
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}
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ccl_device void svm_node_attr(KernelGlobals *kg, ShaderData *sd, float *stack, uint4 node)
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{
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NodeAttributeType type, mesh_type;
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AttributeElement elem;
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uint out_offset;
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int offset;
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svm_node_attr_init(kg, sd, node, &type, &mesh_type, &elem, &offset, &out_offset);
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/* fetch and store attribute */
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if(type == NODE_ATTR_FLOAT) {
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if(mesh_type == NODE_ATTR_FLOAT) {
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float f = primitive_attribute_float(kg, sd, elem, offset, NULL, NULL);
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stack_store_float(stack, out_offset, f);
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}
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else {
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float3 f = primitive_attribute_float3(kg, sd, elem, offset, NULL, NULL);
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stack_store_float(stack, out_offset, average(f));
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}
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}
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else {
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if(mesh_type == NODE_ATTR_FLOAT3) {
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float3 f = primitive_attribute_float3(kg, sd, elem, offset, NULL, NULL);
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stack_store_float3(stack, out_offset, f);
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}
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else {
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float f = primitive_attribute_float(kg, sd, elem, offset, NULL, NULL);
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stack_store_float3(stack, out_offset, make_float3(f, f, f));
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}
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}
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}
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ccl_device void svm_node_attr_bump_dx(KernelGlobals *kg, ShaderData *sd, float *stack, uint4 node)
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{
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NodeAttributeType type, mesh_type;
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AttributeElement elem;
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uint out_offset;
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int offset;
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svm_node_attr_init(kg, sd, node, &type, &mesh_type, &elem, &offset, &out_offset);
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/* fetch and store attribute */
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if(type == NODE_ATTR_FLOAT) {
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if(mesh_type == NODE_ATTR_FLOAT) {
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float dx;
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float f = primitive_attribute_float(kg, sd, elem, offset, &dx, NULL);
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stack_store_float(stack, out_offset, f+dx);
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}
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else {
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float3 dx;
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float3 f = primitive_attribute_float3(kg, sd, elem, offset, &dx, NULL);
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stack_store_float(stack, out_offset, average(f+dx));
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}
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}
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else {
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if(mesh_type == NODE_ATTR_FLOAT3) {
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float3 dx;
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float3 f = primitive_attribute_float3(kg, sd, elem, offset, &dx, NULL);
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stack_store_float3(stack, out_offset, f+dx);
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}
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else {
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float dx;
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float f = primitive_attribute_float(kg, sd, elem, offset, &dx, NULL);
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stack_store_float3(stack, out_offset, make_float3(f+dx, f+dx, f+dx));
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}
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}
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}
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ccl_device void svm_node_attr_bump_dy(KernelGlobals *kg, ShaderData *sd, float *stack, uint4 node)
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{
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NodeAttributeType type, mesh_type;
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AttributeElement elem;
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uint out_offset;
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int offset;
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svm_node_attr_init(kg, sd, node, &type, &mesh_type, &elem, &offset, &out_offset);
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/* fetch and store attribute */
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if(type == NODE_ATTR_FLOAT) {
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if(mesh_type == NODE_ATTR_FLOAT) {
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float dy;
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float f = primitive_attribute_float(kg, sd, elem, offset, NULL, &dy);
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stack_store_float(stack, out_offset, f+dy);
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}
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else {
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float3 dy;
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float3 f = primitive_attribute_float3(kg, sd, elem, offset, NULL, &dy);
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stack_store_float(stack, out_offset, average(f+dy));
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}
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}
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else {
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if(mesh_type == NODE_ATTR_FLOAT3) {
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float3 dy;
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float3 f = primitive_attribute_float3(kg, sd, elem, offset, NULL, &dy);
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stack_store_float3(stack, out_offset, f+dy);
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}
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else {
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float dy;
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float f = primitive_attribute_float(kg, sd, elem, offset, NULL, &dy);
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stack_store_float3(stack, out_offset, make_float3(f+dy, f+dy, f+dy));
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}
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}
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}
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CCL_NAMESPACE_END
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