2011-04-27 11:58:34 +00:00
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/*
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2013-08-18 14:16:15 +00:00
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* Copyright 2011-2013 Blender Foundation
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2011-04-27 11:58:34 +00:00
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*
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2013-08-18 14:16:15 +00:00
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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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2011-04-27 11:58:34 +00:00
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*
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2013-08-18 14:16:15 +00:00
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* http://www.apache.org/licenses/LICENSE-2.0
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2011-04-27 11:58:34 +00:00
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*
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2013-08-18 14:16:15 +00:00
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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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2014-12-25 01:50:24 +00:00
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* limitations under the License.
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2011-04-27 11:58:34 +00:00
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*/
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CCL_NAMESPACE_BEGIN
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/* Attribute Node */
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2013-11-15 23:17:10 +00:00
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ccl_device void svm_node_attr_init(KernelGlobals *kg, ShaderData *sd,
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2011-04-27 11:58:34 +00:00
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uint4 node, NodeAttributeType *type,
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2012-05-13 12:32:44 +00:00
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NodeAttributeType *mesh_type, AttributeElement *elem, int *offset, uint *out_offset)
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2011-04-27 11:58:34 +00:00
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{
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2014-03-29 12:03:48 +00:00
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if(sd->object != OBJECT_NONE) {
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2011-04-27 11:58:34 +00:00
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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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2013-01-03 13:18:35 +00:00
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#ifdef __HAIR__
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2014-03-29 12:03:48 +00:00
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attr_offset = (sd->type & PRIMITIVE_ALL_CURVE)? attr_offset + ATTR_PRIM_CURVE: attr_offset;
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2013-01-03 13:18:35 +00:00
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#endif
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2011-04-27 11:58:34 +00:00
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uint4 attr_map = kernel_tex_fetch(__attributes_map, attr_offset);
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2013-01-03 12:08:54 +00:00
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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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2011-04-27 11:58:34 +00:00
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/* return result */
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*elem = (AttributeElement)attr_map.y;
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2012-05-13 12:32:44 +00:00
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*offset = as_int(attr_map.z);
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2011-04-27 11:58:34 +00:00
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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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2013-11-15 23:17:10 +00:00
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ccl_device void svm_node_attr(KernelGlobals *kg, ShaderData *sd, float *stack, uint4 node)
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2011-04-27 11:58:34 +00:00
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{
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NodeAttributeType type, mesh_type;
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AttributeElement elem;
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2012-05-13 12:32:44 +00:00
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uint out_offset;
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int offset;
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2011-04-27 11:58:34 +00:00
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svm_node_attr_init(kg, sd, node, &type, &mesh_type, &elem, &offset, &out_offset);
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2013-01-03 12:08:54 +00:00
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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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2011-04-27 11:58:34 +00:00
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else {
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2013-01-03 12:08:54 +00:00
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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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2011-04-27 11:58:34 +00:00
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}
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}
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2013-01-03 12:08:54 +00:00
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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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2011-04-27 11:58:34 +00:00
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}
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else {
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2013-01-03 12:08:54 +00:00
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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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2011-04-27 11:58:34 +00:00
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}
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}
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}
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2013-11-15 23:17:10 +00:00
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ccl_device void svm_node_attr_bump_dx(KernelGlobals *kg, ShaderData *sd, float *stack, uint4 node)
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2011-04-27 11:58:34 +00:00
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{
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NodeAttributeType type, mesh_type;
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AttributeElement elem;
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2012-05-13 12:32:44 +00:00
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uint out_offset;
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int offset;
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2011-04-27 11:58:34 +00:00
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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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2013-01-03 12:08:54 +00:00
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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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2011-04-27 11:58:34 +00:00
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}
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else {
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2013-01-03 12:08:54 +00:00
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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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2011-04-27 11:58:34 +00:00
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}
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else {
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2013-01-03 12:08:54 +00:00
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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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2011-04-27 11:58:34 +00:00
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}
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}
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}
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2013-11-15 23:17:10 +00:00
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ccl_device void svm_node_attr_bump_dy(KernelGlobals *kg, ShaderData *sd, float *stack, uint4 node)
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2011-04-27 11:58:34 +00:00
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{
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NodeAttributeType type, mesh_type;
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AttributeElement elem;
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2012-05-13 12:32:44 +00:00
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uint out_offset;
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int offset;
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2011-04-27 11:58:34 +00:00
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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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2013-01-03 12:08:54 +00:00
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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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2011-04-27 11:58:34 +00:00
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}
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else {
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2013-01-03 12:08:54 +00:00
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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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2011-04-27 11:58:34 +00:00
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}
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else {
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2013-01-03 12:08:54 +00:00
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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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2011-04-27 11:58:34 +00:00
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}
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}
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}
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CCL_NAMESPACE_END
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