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Differential D12888 Diff 43502 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(ccl_global const KernelGlobals *kg, ccl_device float3 sky_radiance_preetham(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,
ccl_private float *config_x, ccl_private float *config_x,
ccl_private float *config_y, ccl_private 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(ccl_global const KernelGlobals *kg, ccl_device float3 sky_radiance_hosek(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,
ccl_private float *config_x, ccl_private float *config_x,
ccl_private float *config_y, ccl_private 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(ccl_global const KernelGlobals *kg, ccl_device float3 sky_radiance_nishita(KernelGlobals kg,
float3 dir, float3 dir,
ccl_private float *nishita_data, ccl_private 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_noinline int svm_node_tex_sky(ccl_global const KernelGlobals *kg, ccl_device_noinline int svm_node_tex_sky(
ccl_private ShaderData *sd, KernelGlobals kg, ccl_private ShaderData *sd, ccl_private float *stack, uint4 node, int offset)
ccl_private 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;
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