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Differential D1999 Diff 6696 intern/cycles/kernel/geom/geom_volume.h

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intern/cycles/kernel/geom/geom_volume.h

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* same shader can be used for volume objects with different densities, etc. */ * same shader can be used for volume objects with different densities, etc. */
CCL_NAMESPACE_BEGIN CCL_NAMESPACE_BEGIN
#ifdef __VOLUME__ #ifdef __VOLUME__
/* Return position normalized to 0..1 in mesh bounds */ /* Return position normalized to 0..1 in mesh bounds */
#ifdef __KERNEL_GPU__ #if defined(__KERNEL_GPU__) && __CUDA_ARCH__ < 300
ccl_device float4 volume_image_texture_3d(int id, float x, float y, float z) ccl_device float4 volume_image_texture_3d(int id, float x, float y, float z)
{ {
float4 r; float4 r;
switch(id) { switch(id) {
case 0: r = kernel_tex_image_interp_3d(__tex_image_float4_3d_000, x, y, z); break; case 0: r = kernel_tex_image_interp_3d(__tex_image_float4_3d_000, x, y, z); break;
case 1: r = kernel_tex_image_interp_3d(__tex_image_float4_3d_001, x, y, z); break; case 1: r = kernel_tex_image_interp_3d(__tex_image_float4_3d_001, x, y, z); break;
case 2: r = kernel_tex_image_interp_3d(__tex_image_float4_3d_002, x, y, z); break; case 2: r = kernel_tex_image_interp_3d(__tex_image_float4_3d_002, x, y, z); break;
case 3: r = kernel_tex_image_interp_3d(__tex_image_float4_3d_003, x, y, z); break; case 3: r = kernel_tex_image_interp_3d(__tex_image_float4_3d_003, x, y, z); break;
Show All 19 Linesccl_device float3 volume_normalized_position(KernelGlobals *kg, const ShaderData *sd, float3 P)
return P; return P;
} }
ccl_device float volume_attribute_float(KernelGlobals *kg, const ShaderData *sd, AttributeElement elem, int id, float *dx, float *dy) ccl_device float volume_attribute_float(KernelGlobals *kg, const ShaderData *sd, AttributeElement elem, int id, float *dx, float *dy)
{ {
float3 P = volume_normalized_position(kg, sd, sd->P); float3 P = volume_normalized_position(kg, sd, sd->P);
#ifdef __KERNEL_GPU__ #ifdef __KERNEL_GPU__
# if __CUDA_ARCH__ >= 300
CUtexObject tex = kernel_tex_fetch(__bindless_mapping, id);
float f = kernel_tex_image_interp_3d_float(tex, P.x, P.y, P.z);
float4 r = make_float4(f, f, f, 1.0);
# else
float4 r = volume_image_texture_3d(id, P.x, P.y, P.z); float4 r = volume_image_texture_3d(id, P.x, P.y, P.z);
# endif
#else #else
float4 r; float4 r;
if(sd->flag & SD_VOLUME_CUBIC) if(sd->flag & SD_VOLUME_CUBIC)
r = kernel_tex_image_interp_3d_ex(id, P.x, P.y, P.z, INTERPOLATION_CUBIC); r = kernel_tex_image_interp_3d_ex(id, P.x, P.y, P.z, INTERPOLATION_CUBIC);
else else
r = kernel_tex_image_interp_3d(id, P.x, P.y, P.z); r = kernel_tex_image_interp_3d(id, P.x, P.y, P.z);
#endif #endif
if(dx) *dx = 0.0f; if(dx) *dx = 0.0f;
if(dy) *dy = 0.0f; if(dy) *dy = 0.0f;
return average(float4_to_float3(r)); return average(float4_to_float3(r));
} }
ccl_device float3 volume_attribute_float3(KernelGlobals *kg, const ShaderData *sd, AttributeElement elem, int id, float3 *dx, float3 *dy) ccl_device float3 volume_attribute_float3(KernelGlobals *kg, const ShaderData *sd, AttributeElement elem, int id, float3 *dx, float3 *dy)
{ {
float3 P = volume_normalized_position(kg, sd, sd->P); float3 P = volume_normalized_position(kg, sd, sd->P);
#ifdef __KERNEL_GPU__ #ifdef __KERNEL_GPU__
# if __CUDA_ARCH__ >= 300
CUtexObject tex = kernel_tex_fetch(__bindless_mapping, id);
float4 r = kernel_tex_image_interp_3d_float4(tex, P.x, P.y, P.z);
# else
float4 r = volume_image_texture_3d(id, P.x, P.y, P.z); float4 r = volume_image_texture_3d(id, P.x, P.y, P.z);
# endif
#else #else
float4 r; float4 r;
if(sd->flag & SD_VOLUME_CUBIC) if(sd->flag & SD_VOLUME_CUBIC)
r = kernel_tex_image_interp_3d_ex(id, P.x, P.y, P.z, INTERPOLATION_CUBIC); r = kernel_tex_image_interp_3d_ex(id, P.x, P.y, P.z, INTERPOLATION_CUBIC);
else else
r = kernel_tex_image_interp_3d(id, P.x, P.y, P.z); r = kernel_tex_image_interp_3d(id, P.x, P.y, P.z);
#endif #endif
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