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path: root/intern/cycles/kernel/svm/svm_wireframe.h
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Diffstat (limited to 'intern/cycles/kernel/svm/svm_wireframe.h')
-rw-r--r--intern/cycles/kernel/svm/svm_wireframe.h150
1 files changed, 72 insertions, 78 deletions
diff --git a/intern/cycles/kernel/svm/svm_wireframe.h b/intern/cycles/kernel/svm/svm_wireframe.h
index 35df9e8a0e7..55e61d0e8c7 100644
--- a/intern/cycles/kernel/svm/svm_wireframe.h
+++ b/intern/cycles/kernel/svm/svm_wireframe.h
@@ -34,103 +34,97 @@ CCL_NAMESPACE_BEGIN
/* Wireframe Node */
-ccl_device_inline float wireframe(KernelGlobals *kg,
- ShaderData *sd,
- float size,
- int pixel_size,
- float3 *P)
+ccl_device_inline float wireframe(
+ KernelGlobals *kg, ShaderData *sd, float size, int pixel_size, float3 *P)
{
#ifdef __HAIR__
- if(sd->prim != PRIM_NONE && sd->type & PRIMITIVE_ALL_TRIANGLE)
+ if (sd->prim != PRIM_NONE && sd->type & PRIMITIVE_ALL_TRIANGLE)
#else
- if(sd->prim != PRIM_NONE)
+ if (sd->prim != PRIM_NONE)
#endif
- {
- float3 Co[3];
- float pixelwidth = 1.0f;
+ {
+ float3 Co[3];
+ float pixelwidth = 1.0f;
- /* Triangles */
- int np = 3;
+ /* 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->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 (!(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;
- }
+ 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;
+ // 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 void svm_node_wireframe(KernelGlobals *kg,
- ShaderData *sd,
- float *stack,
- uint4 node)
+ccl_device void svm_node_wireframe(KernelGlobals *kg, ShaderData *sd, float *stack, uint4 node)
{
- uint in_size = node.y;
- uint out_fac = node.z;
- uint use_pixel_size, bump_offset;
- decode_node_uchar4(node.w, &use_pixel_size, &bump_offset, NULL, NULL);
+ uint in_size = node.y;
+ uint out_fac = node.z;
+ uint use_pixel_size, bump_offset;
+ decode_node_uchar4(node.w, &use_pixel_size, &bump_offset, NULL, NULL);
- /* Input Data */
- float size = stack_load_float(stack, in_size);
- int pixel_size = (int)use_pixel_size;
+ /* Input Data */
+ float size = stack_load_float(stack, in_size);
+ int pixel_size = (int)use_pixel_size;
- /* Calculate wireframe */
+ /* Calculate wireframe */
#ifdef __SPLIT_KERNEL__
- /* TODO(sergey): This is because sd is actually a global space,
- * which makes it difficult to re-use same wireframe() function.
- *
- * With OpenCL 2.0 it's possible to avoid this change, but for until
- * then we'll be living with such an exception.
- */
- float3 P = sd->P;
- float f = wireframe(kg, sd, size, pixel_size, &P);
+ /* TODO(sergey): This is because sd is actually a global space,
+ * which makes it difficult to re-use same wireframe() function.
+ *
+ * With OpenCL 2.0 it's possible to avoid this change, but for until
+ * then we'll be living with such an exception.
+ */
+ float3 P = sd->P;
+ float f = wireframe(kg, sd, size, pixel_size, &P);
#else
- float f = wireframe(kg, sd, size, pixel_size, &sd->P);
+ float f = wireframe(kg, sd, size, pixel_size, &sd->P);
#endif
- /* 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);
- }
+ /* 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);
+ if (stack_valid(out_fac))
+ stack_store_float(stack, out_fac, f);
}
CCL_NAMESPACE_END
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