diff options
author | Brecht Van Lommel <brechtvanlommel@pandora.be> | 2012-03-08 23:52:58 +0400 |
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committer | Brecht Van Lommel <brechtvanlommel@pandora.be> | 2012-03-08 23:52:58 +0400 |
commit | 9b8dae71a5e0f5cccb4031dbe5f07aae01744c82 (patch) | |
tree | 8a575ab4a9e6835eef2175209ee323df883fd0ac /intern/cycles/kernel/svm/svm_image.h | |
parent | 0f3e1821eae40c7cebfcf199b58370971b57fa35 (diff) |
Cycles: support for environment texture "Mirror Ball" projection mode, next to
existing "Equirectangular". This projection is useful to create light probes
from a chrome ball placed in a real scene. It expects as input a photograph of
the chrome ball, cropped so the ball just fits inside the image boundaries.
Example setup with panorama camera and mixing two (poor quality) photographs
from different viewpoints to avoid stretching and hide the photographer:
http://www.pasteall.org/pic/28036
Diffstat (limited to 'intern/cycles/kernel/svm/svm_image.h')
-rw-r--r-- | intern/cycles/kernel/svm/svm_image.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/intern/cycles/kernel/svm/svm_image.h b/intern/cycles/kernel/svm/svm_image.h index 3d737b483cb..eddd0f7034a 100644 --- a/intern/cycles/kernel/svm/svm_image.h +++ b/intern/cycles/kernel/svm/svm_image.h @@ -171,11 +171,20 @@ __device void svm_node_tex_environment(KernelGlobals *kg, ShaderData *sd, float { uint id = node.y; uint co_offset, out_offset, alpha_offset, srgb; + uint projection = node.w; decode_node_uchar4(node.z, &co_offset, &out_offset, &alpha_offset, &srgb); float3 co = stack_load_float3(stack, co_offset); - float2 uv = direction_to_equirectangular(co); + float2 uv; + + co = normalize(co); + + if(projection == 0) + uv = direction_to_equirectangular(co); + else + uv = direction_to_mirrorball(co); + float4 f = svm_image_texture(kg, id, uv.x, uv.y); float3 r = make_float3(f.x, f.y, f.z); |