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Cycles: Initial support of 3D textures for CUDA rendering

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Supports both smoke/fire and point density textures now.

Reduces number of textures available for sm_20 and sm_21, but you have
to compromise somewhere on such a limited hardware.

Currently limited to linear interpolation only, and decoupled ray
marching is not supported yet. Think those could be considered just a
further improvement.

Some quick example:

  https://developer.blender.org/F282934

Code is minimal and we can fully consider it a fix for missing
support of 3D textures with CUDA.

Reviewers: lukasstockner97, brecht, juicyfruit, dingto

Reviewed By: brecht, juicyfruit, dingto

Subscribers: mib2berlin

Differential Revision: https://developer.blender.org/D1806
This commit is contained in:
Sergey Sharybin
2016-02-15 15:40:39 +01:00
parent b5171e250c
commit 1c4f21f85e
8 changed files with 83 additions and 20 deletions
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4
intern/cycles/kernel/svm/svm_image.h
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@@ -246,13 +246,13 @@ ccl_device float4 svm_image_texture(KernelGlobals *kg, int id, float x, float y,
case 90: r = kernel_tex_image_interp(__tex_image_090, x, y); break;
case 91: r = kernel_tex_image_interp(__tex_image_091, x, y); break;
case 92: r = kernel_tex_image_interp(__tex_image_092, x, y); break;
#if defined(__CUDA_ARCH__) && (__CUDA_ARCH__ >= 300)
case 93: r = kernel_tex_image_interp(__tex_image_093, x, y); break;
case 94: r = kernel_tex_image_interp(__tex_image_094, x, y); break;
case 95: r = kernel_tex_image_interp(__tex_image_095, x, y); break;
case 96: r = kernel_tex_image_interp(__tex_image_096, x, y); break;
case 97: r = kernel_tex_image_interp(__tex_image_097, x, y); break;
#if defined(__CUDA_ARCH__) && (__CUDA_ARCH__ >= 300)
case 98: r = kernel_tex_image_interp(__tex_image_098, x, y); break;
case 99: r = kernel_tex_image_interp(__tex_image_099, x, y); break;
case 100: r = kernel_tex_image_interp(__tex_image_100, x, y); break;