diff options
Diffstat (limited to 'intern/cycles/kernel/svm/svm_wireframe.h')
| -rw-r--r-- | intern/cycles/kernel/svm/svm_wireframe.h | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/intern/cycles/kernel/svm/svm_wireframe.h b/intern/cycles/kernel/svm/svm_wireframe.h deleted file mode 100644 index d75976d23e1..00000000000 --- a/intern/cycles/kernel/svm/svm_wireframe.h +++ /dev/null @@ -1,125 +0,0 @@ -/* - * Adapted from Open Shading Language with this license: - * - * Copyright (c) 2009-2010 Sony Pictures Imageworks Inc., et al. - * All Rights Reserved. - * - * Modifications Copyright 2013, Blender Foundation. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of Sony Pictures Imageworks nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -CCL_NAMESPACE_BEGIN - -/* Wireframe Node */ - -ccl_device_inline float wireframe(KernelGlobals kg, - ccl_private ShaderData *sd, - float size, - int pixel_size, - ccl_private float3 *P) -{ -#ifdef __HAIR__ - if (sd->prim != PRIM_NONE && sd->type & PRIMITIVE_ALL_TRIANGLE) -#else - if (sd->prim != PRIM_NONE) -#endif - { - float3 Co[3]; - float pixelwidth = 1.0f; - - /* Triangles */ - int np = 3; - - if (sd->type & PRIMITIVE_TRIANGLE) - triangle_vertices(kg, sd->prim, Co); - else - motion_triangle_vertices(kg, sd->object, sd->prim, sd->time, Co); - - if (!(sd->object_flag & SD_OBJECT_TRANSFORM_APPLIED)) { - object_position_transform(kg, sd, &Co[0]); - object_position_transform(kg, sd, &Co[1]); - object_position_transform(kg, sd, &Co[2]); - } - - if (pixel_size) { - // Project the derivatives of P to the viewing plane defined - // by I so we have a measure of how big is a pixel at this point - float pixelwidth_x = len(sd->dP.dx - dot(sd->dP.dx, sd->I) * sd->I); - float pixelwidth_y = len(sd->dP.dy - dot(sd->dP.dy, sd->I) * sd->I); - // Take the average of both axis' length - pixelwidth = (pixelwidth_x + pixelwidth_y) * 0.5f; - } - - // Use half the width as the neighbor face will render the - // other half. And take the square for fast comparison - pixelwidth *= 0.5f * size; - pixelwidth *= pixelwidth; - for (int i = 0; i < np; i++) { - int i2 = i ? i - 1 : np - 1; - float3 dir = *P - Co[i]; - float3 edge = Co[i] - Co[i2]; - float3 crs = cross(edge, dir); - // At this point dot(crs, crs) / dot(edge, edge) is - // the square of area / length(edge) == square of the - // distance to the edge. - if (dot(crs, crs) < (dot(edge, edge) * pixelwidth)) - return 1.0f; - } - } - return 0.0f; -} - -ccl_device_noinline void svm_node_wireframe(KernelGlobals kg, - ccl_private ShaderData *sd, - ccl_private float *stack, - uint4 node) -{ - uint in_size = node.y; - uint out_fac = node.z; - uint use_pixel_size, bump_offset; - svm_unpack_node_uchar2(node.w, &use_pixel_size, &bump_offset); - - /* Input Data */ - float size = stack_load_float(stack, in_size); - int pixel_size = (int)use_pixel_size; - - /* Calculate wireframe */ - float f = wireframe(kg, sd, size, pixel_size, &sd->P); - - /* TODO(sergey): Think of faster way to calculate derivatives. */ - if (bump_offset == NODE_BUMP_OFFSET_DX) { - float3 Px = sd->P - sd->dP.dx; - f += (f - wireframe(kg, sd, size, pixel_size, &Px)) / len(sd->dP.dx); - } - else if (bump_offset == NODE_BUMP_OFFSET_DY) { - float3 Py = sd->P - sd->dP.dy; - f += (f - wireframe(kg, sd, size, pixel_size, &Py)) / len(sd->dP.dy); - } - - if (stack_valid(out_fac)) - stack_store_float(stack, out_fac, f); -} - -CCL_NAMESPACE_END |