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Differential D12367 Diff 41308 intern/cycles/kernel/svm/svm_sky.h

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intern/cycles/kernel/svm/svm_sky.h

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{ {
float ctheta = cosf(theta); float ctheta = cosf(theta);
float cgamma = cosf(gamma); float cgamma = cosf(gamma);
return (1.0f + lam[0] * expf(lam[1] / ctheta)) * return (1.0f + lam[0] * expf(lam[1] / ctheta)) *
(1.0f + lam[2] * expf(lam[3] * gamma) + lam[4] * cgamma * cgamma); (1.0f + lam[2] * expf(lam[3] * gamma) + lam[4] * cgamma * cgamma);
} }
ccl_device float3 sky_radiance_preetham(KernelGlobals *kg, ccl_device float3 sky_radiance_preetham(const KernelGlobals *kg,
float3 dir, float3 dir,
float sunphi, float sunphi,
float suntheta, float suntheta,
float radiance_x, float radiance_x,
float radiance_y, float radiance_y,
float radiance_z, float radiance_z,
float *config_x, float *config_x,
float *config_y, float *config_y,
Show All 36 Lines float mieM = (1.0f + rayM) / powf((1.0f + configuration[8] * configuration[8] -
1.5f); 1.5f);
float zenith = sqrtf(ctheta); float zenith = sqrtf(ctheta);
return (1.0f + configuration[0] * expf(configuration[1] / (ctheta + 0.01f))) * return (1.0f + configuration[0] * expf(configuration[1] / (ctheta + 0.01f))) *
(configuration[2] + configuration[3] * expM + configuration[5] * rayM + (configuration[2] + configuration[3] * expM + configuration[5] * rayM +
configuration[6] * mieM + configuration[7] * zenith); configuration[6] * mieM + configuration[7] * zenith);
} }
ccl_device float3 sky_radiance_hosek(KernelGlobals *kg, ccl_device float3 sky_radiance_hosek(const KernelGlobals *kg,
float3 dir, float3 dir,
float sunphi, float sunphi,
float suntheta, float suntheta,
float radiance_x, float radiance_x,
float radiance_y, float radiance_y,
float radiance_z, float radiance_z,
float *config_x, float *config_x,
float *config_y, float *config_y,
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} }
/* Nishita improved sky model */ /* Nishita improved sky model */
ccl_device float3 geographical_to_direction(float lat, float lon) ccl_device float3 geographical_to_direction(float lat, float lon)
{ {
return make_float3(cos(lat) * cos(lon), cos(lat) * sin(lon), sin(lat)); return make_float3(cos(lat) * cos(lon), cos(lat) * sin(lon), sin(lat));
} }
ccl_device float3 sky_radiance_nishita(KernelGlobals *kg, ccl_device float3 sky_radiance_nishita(const KernelGlobals *kg,
float3 dir, float3 dir,
float *nishita_data, float *nishita_data,
uint texture_id) uint texture_id)
{ {
/* definitions */ /* definitions */
float sun_elevation = nishita_data[6]; float sun_elevation = nishita_data[6];
float sun_rotation = nishita_data[7]; float sun_rotation = nishita_data[7];
float angular_diameter = nishita_data[8]; float angular_diameter = nishita_data[8];
▲ Show 20 Lines • Show All 65 Lines • ▼ Show 20 Lines else {
xyz = float4_to_float3(kernel_tex_image_interp(kg, texture_id, x, -0.5)) * fade; xyz = float4_to_float3(kernel_tex_image_interp(kg, texture_id, x, -0.5)) * fade;
} }
} }
/* convert to RGB */ /* convert to RGB */
return xyz_to_rgb(kg, xyz); return xyz_to_rgb(kg, xyz);
} }
ccl_device void svm_node_tex_sky( ccl_device_noinline int svm_node_tex_sky(
KernelGlobals *kg, ShaderData *sd, float *stack, uint4 node, int *offset) const KernelGlobals *kg, ShaderData *sd, float *stack, uint4 node, int offset)
{ {
/* Load data */ /* Load data */
uint dir_offset = node.y; uint dir_offset = node.y;
uint out_offset = node.z; uint out_offset = node.z;
int sky_model = node.w; int sky_model = node.w;
float3 dir = stack_load_float3(stack, dir_offset); float3 dir = stack_load_float3(stack, dir_offset);
float3 f; float3 f;
/* Preetham and Hosek share the same data */ /* Preetham and Hosek share the same data */
if (sky_model == 0 || sky_model == 1) { if (sky_model == 0 || sky_model == 1) {
/* Define variables */ /* Define variables */
float sunphi, suntheta, radiance_x, radiance_y, radiance_z; float sunphi, suntheta, radiance_x, radiance_y, radiance_z;
float config_x[9], config_y[9], config_z[9]; float config_x[9], config_y[9], config_z[9];
float4 data = read_node_float(kg, offset); float4 data = read_node_float(kg, &offset);
sunphi = data.x; sunphi = data.x;
suntheta = data.y; suntheta = data.y;
radiance_x = data.z; radiance_x = data.z;
radiance_y = data.w; radiance_y = data.w;
data = read_node_float(kg, offset); data = read_node_float(kg, &offset);
radiance_z = data.x; radiance_z = data.x;
config_x[0] = data.y; config_x[0] = data.y;
config_x[1] = data.z; config_x[1] = data.z;
config_x[2] = data.w; config_x[2] = data.w;
data = read_node_float(kg, offset); data = read_node_float(kg, &offset);
config_x[3] = data.x; config_x[3] = data.x;
config_x[4] = data.y; config_x[4] = data.y;
config_x[5] = data.z; config_x[5] = data.z;
config_x[6] = data.w; config_x[6] = data.w;
data = read_node_float(kg, offset); data = read_node_float(kg, &offset);
config_x[7] = data.x; config_x[7] = data.x;
config_x[8] = data.y; config_x[8] = data.y;
config_y[0] = data.z; config_y[0] = data.z;
config_y[1] = data.w; config_y[1] = data.w;
data = read_node_float(kg, offset); data = read_node_float(kg, &offset);
config_y[2] = data.x; config_y[2] = data.x;
config_y[3] = data.y; config_y[3] = data.y;
config_y[4] = data.z; config_y[4] = data.z;
config_y[5] = data.w; config_y[5] = data.w;
data = read_node_float(kg, offset); data = read_node_float(kg, &offset);
config_y[6] = data.x; config_y[6] = data.x;
config_y[7] = data.y; config_y[7] = data.y;
config_y[8] = data.z; config_y[8] = data.z;
config_z[0] = data.w; config_z[0] = data.w;
data = read_node_float(kg, offset); data = read_node_float(kg, &offset);
config_z[1] = data.x; config_z[1] = data.x;
config_z[2] = data.y; config_z[2] = data.y;
config_z[3] = data.z; config_z[3] = data.z;
config_z[4] = data.w; config_z[4] = data.w;
data = read_node_float(kg, offset); data = read_node_float(kg, &offset);
config_z[5] = data.x; config_z[5] = data.x;
config_z[6] = data.y; config_z[6] = data.y;
config_z[7] = data.z; config_z[7] = data.z;
config_z[8] = data.w; config_z[8] = data.w;
/* Compute Sky */ /* Compute Sky */
if (sky_model == 0) { if (sky_model == 0) {
f = sky_radiance_preetham(kg, f = sky_radiance_preetham(kg,
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config_z); config_z);
} }
} }
/* Nishita */ /* Nishita */
else { else {
/* Define variables */ /* Define variables */
float nishita_data[10]; float nishita_data[10];
float4 data = read_node_float(kg, offset); float4 data = read_node_float(kg, &offset);
nishita_data[0] = data.x; nishita_data[0] = data.x;
nishita_data[1] = data.y; nishita_data[1] = data.y;
nishita_data[2] = data.z; nishita_data[2] = data.z;
nishita_data[3] = data.w; nishita_data[3] = data.w;
data = read_node_float(kg, offset); data = read_node_float(kg, &offset);
nishita_data[4] = data.x; nishita_data[4] = data.x;
nishita_data[5] = data.y; nishita_data[5] = data.y;
nishita_data[6] = data.z; nishita_data[6] = data.z;
nishita_data[7] = data.w; nishita_data[7] = data.w;
data = read_node_float(kg, offset); data = read_node_float(kg, &offset);
nishita_data[8] = data.x; nishita_data[8] = data.x;
nishita_data[9] = data.y; nishita_data[9] = data.y;
uint texture_id = __float_as_uint(data.z); uint texture_id = __float_as_uint(data.z);
/* Compute Sky */ /* Compute Sky */
f = sky_radiance_nishita(kg, dir, nishita_data, texture_id); f = sky_radiance_nishita(kg, dir, nishita_data, texture_id);
} }
stack_store_float3(stack, out_offset, f); stack_store_float3(stack, out_offset, f);
return offset;
} }
CCL_NAMESPACE_END CCL_NAMESPACE_END