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Differential D12888 Diff 43495 intern/cycles/kernel/geom/geom_motion_curve.h

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intern/cycles/kernel/geom/geom_motion_curve.h

Show All 21 Lines
* other than the frame center. Computing the curve keys at a given ray time is * other than the frame center. Computing the curve keys at a given ray time is
* a matter of interpolation of the two steps between which the ray time lies. * a matter of interpolation of the two steps between which the ray time lies.
* *
* The extra curve keys are stored as ATTR_STD_MOTION_VERTEX_POSITION. * The extra curve keys are stored as ATTR_STD_MOTION_VERTEX_POSITION.
*/ */
#ifdef __HAIR__ #ifdef __HAIR__
ccl_device_inline void motion_curve_keys_for_step_linear(ccl_global const KernelGlobals *kg, ccl_device_inline void motion_curve_keys_for_step_linear(KernelGlobals kg,
int offset, int offset,
int numkeys, int numkeys,
int numsteps, int numsteps,
int step, int step,
int k0, int k0,
int k1, int k1,
float4 keys[2]) float4 keys[2])
{ {
Show All 10 Lines else {
offset += step * numkeys; offset += step * numkeys;
keys[0] = kernel_tex_fetch(__attributes_float3, offset + k0); keys[0] = kernel_tex_fetch(__attributes_float3, offset + k0);
keys[1] = kernel_tex_fetch(__attributes_float3, offset + k1); keys[1] = kernel_tex_fetch(__attributes_float3, offset + k1);
} }
} }
/* return 2 curve key locations */ /* return 2 curve key locations */
ccl_device_inline void motion_curve_keys_linear(ccl_global const KernelGlobals *kg, ccl_device_inline void motion_curve_keys_linear(
int object, KernelGlobals kg, int object, int prim, float time, int k0, int k1, float4 keys[2])
int prim,
float time,
int k0,
int k1,
float4 keys[2])
{ {
/* get motion info */ /* get motion info */
int numsteps, numkeys; int numsteps, numkeys;
object_motion_info(kg, object, &numsteps, NULL, &numkeys); object_motion_info(kg, object, &numsteps, NULL, &numkeys);
/* figure out which steps we need to fetch and their interpolation factor */ /* figure out which steps we need to fetch and their interpolation factor */
const int maxstep = numsteps * 2; const int maxstep = numsteps * 2;
const int step = min((int)(time * maxstep), maxstep - 1); const int step = min((int)(time * maxstep), maxstep - 1);
Show All 9 Linesccl_device_inline void motion_curve_keys_linear(
motion_curve_keys_for_step_linear(kg, offset, numkeys, numsteps, step, k0, k1, keys); motion_curve_keys_for_step_linear(kg, offset, numkeys, numsteps, step, k0, k1, keys);
motion_curve_keys_for_step_linear(kg, offset, numkeys, numsteps, step + 1, k0, k1, next_keys); motion_curve_keys_for_step_linear(kg, offset, numkeys, numsteps, step + 1, k0, k1, next_keys);
/* interpolate between steps */ /* interpolate between steps */
keys[0] = (1.0f - t) * keys[0] + t * next_keys[0]; keys[0] = (1.0f - t) * keys[0] + t * next_keys[0];
keys[1] = (1.0f - t) * keys[1] + t * next_keys[1]; keys[1] = (1.0f - t) * keys[1] + t * next_keys[1];
} }
ccl_device_inline void motion_curve_keys_for_step(ccl_global const KernelGlobals *kg, ccl_device_inline void motion_curve_keys_for_step(KernelGlobals kg,
int offset, int offset,
int numkeys, int numkeys,
int numsteps, int numsteps,
int step, int step,
int k0, int k0,
int k1, int k1,
int k2, int k2,
int k3, int k3,
Show All 16 Lines else {
keys[0] = kernel_tex_fetch(__attributes_float3, offset + k0); keys[0] = kernel_tex_fetch(__attributes_float3, offset + k0);
keys[1] = kernel_tex_fetch(__attributes_float3, offset + k1); keys[1] = kernel_tex_fetch(__attributes_float3, offset + k1);
keys[2] = kernel_tex_fetch(__attributes_float3, offset + k2); keys[2] = kernel_tex_fetch(__attributes_float3, offset + k2);
keys[3] = kernel_tex_fetch(__attributes_float3, offset + k3); keys[3] = kernel_tex_fetch(__attributes_float3, offset + k3);
} }
} }
/* return 2 curve key locations */ /* return 2 curve key locations */
ccl_device_inline void motion_curve_keys(ccl_global const KernelGlobals *kg, ccl_device_inline void motion_curve_keys(KernelGlobals kg,
int object, int object,
int prim, int prim,
float time, float time,
int k0, int k0,
int k1, int k1,
int k2, int k2,
int k3, int k3,
float4 keys[4]) float4 keys[4])
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