Commit: 8905c5c87495ad8fd876de83a968d79ac54f0e17 Author: Hristo Gueorguiev Date: Sat Oct 22 23:38:42 2016 +0200 Branches: master https://developer.blender.org/rB8905c5c87495ad8fd876de83a968d79ac54f0e17
Cycles: OpenCL 3d textures support. Note that volume rendering is not supported yet, this is a step towards that. Reviewed By: brecht Differential Revision: https://developer.blender.org/D2299 =================================================================== M intern/cycles/kernel/CMakeLists.txt M intern/cycles/kernel/geom/geom_volume.h A intern/cycles/kernel/kernel_image_opencl.h M intern/cycles/kernel/kernels/opencl/kernel.cl M intern/cycles/kernel/split/kernel_split_common.h M intern/cycles/kernel/svm/svm_image.h M intern/cycles/kernel/svm/svm_voxel.h M intern/cycles/render/image.cpp =================================================================== diff --git a/intern/cycles/kernel/CMakeLists.txt b/intern/cycles/kernel/CMakeLists.txt index e4341c8..694f19a 100644 --- a/intern/cycles/kernel/CMakeLists.txt +++ b/intern/cycles/kernel/CMakeLists.txt @@ -57,6 +57,7 @@ set(SRC_HEADERS kernel_emission.h kernel_film.h kernel_globals.h + kernel_image_opencl.h kernel_jitter.h kernel_light.h kernel_math.h diff --git a/intern/cycles/kernel/geom/geom_volume.h b/intern/cycles/kernel/geom/geom_volume.h index fd97a63..03724c95 100644 --- a/intern/cycles/kernel/geom/geom_volume.h +++ b/intern/cycles/kernel/geom/geom_volume.h @@ -29,7 +29,7 @@ CCL_NAMESPACE_BEGIN /* Return position normalized to 0..1 in mesh bounds */ -#if defined(__KERNEL_GPU__) && __CUDA_ARCH__ < 300 +#if defined(__KERNEL_CUDA__) && __CUDA_ARCH__ < 300 ccl_device float4 volume_image_texture_3d(int id, float x, float y, float z) { float4 r; @@ -42,7 +42,7 @@ ccl_device float4 volume_image_texture_3d(int id, float x, float y, float z) } return r; } -#endif /* __KERNEL_GPU__ */ +#endif /* __KERNEL_CUDA__ */ ccl_device_inline float3 volume_normalized_position(KernelGlobals *kg, const ShaderData *sd, @@ -64,8 +64,8 @@ ccl_device_inline float3 volume_normalized_position(KernelGlobals *kg, ccl_device float volume_attribute_float(KernelGlobals *kg, const ShaderData *sd, const AttributeDescriptor desc, float *dx, float *dy) { - float3 P = volume_normalized_position(kg, sd, sd->P); -#ifdef __KERNEL_GPU__ + float3 P = volume_normalized_position(kg, sd, ccl_fetch(sd, P)); +#ifdef __KERNEL_CUDA__ # if __CUDA_ARCH__ >= 300 CUtexObject tex = kernel_tex_fetch(__bindless_mapping, desc.offset); float f = kernel_tex_image_interp_3d_float(tex, P.x, P.y, P.z); @@ -73,6 +73,8 @@ ccl_device float volume_attribute_float(KernelGlobals *kg, const ShaderData *sd, # else float4 r = volume_image_texture_3d(desc.offset, P.x, P.y, P.z); # endif +#elif defined(__KERNEL_OPENCL__) + float4 r = kernel_tex_image_interp_3d(kg, desc.offset, P.x, P.y, P.z); #else float4 r; if(sd->flag & SD_VOLUME_CUBIC) @@ -89,14 +91,16 @@ ccl_device float volume_attribute_float(KernelGlobals *kg, const ShaderData *sd, ccl_device float3 volume_attribute_float3(KernelGlobals *kg, const ShaderData *sd, const AttributeDescriptor desc, float3 *dx, float3 *dy) { - float3 P = volume_normalized_position(kg, sd, sd->P); -#ifdef __KERNEL_GPU__ + float3 P = volume_normalized_position(kg, sd, ccl_fetch(sd, P)); +#ifdef __KERNEL_CUDA__ # if __CUDA_ARCH__ >= 300 CUtexObject tex = kernel_tex_fetch(__bindless_mapping, desc.offset); float4 r = kernel_tex_image_interp_3d_float4(tex, P.x, P.y, P.z); # else float4 r = volume_image_texture_3d(desc.offset, P.x, P.y, P.z); # endif +#elif defined(__KERNEL_OPENCL__) + float4 r = kernel_tex_image_interp_3d(kg, desc.offset, P.x, P.y, P.z); #else float4 r; if(sd->flag & SD_VOLUME_CUBIC) diff --git a/intern/cycles/kernel/kernel_image_opencl.h b/intern/cycles/kernel/kernel_image_opencl.h new file mode 100644 index 0000000..f6c31b2 --- /dev/null +++ b/intern/cycles/kernel/kernel_image_opencl.h @@ -0,0 +1,227 @@ +/* + * Copyright 2016 Blender Foundation + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + + +/* For OpenCL all images are packed in a single array, and we do manual lookup + * and interpolation. */ + +ccl_device_inline float4 svm_image_texture_read(KernelGlobals *kg, int id, int offset) +{ + /* Float4 */ + if(id < TEX_START_BYTE4_OPENCL) { + return kernel_tex_fetch(__tex_image_float4_packed, offset); + } + /* Byte4 */ + else if(id < TEX_START_FLOAT_OPENCL) { + uchar4 r = kernel_tex_fetch(__tex_image_byte4_packed, offset); + float f = 1.0f/255.0f; + return make_float4(r.x*f, r.y*f, r.z*f, r.w*f); + } + /* Float */ + else if(id < TEX_START_BYTE_OPENCL) { + float f = kernel_tex_fetch(__tex_image_float_packed, offset); + return make_float4(f, f, f, 1.0f); + } + /* Byte */ + else { + uchar r = kernel_tex_fetch(__tex_image_byte_packed, offset); + float f = r * (1.0f/255.0f); + return make_float4(f, f, f, 1.0f); + } +} + +ccl_device_inline int svm_image_texture_wrap_periodic(int x, int width) +{ + x %= width; + if(x < 0) + x += width; + return x; +} + +ccl_device_inline int svm_image_texture_wrap_clamp(int x, int width) +{ + return clamp(x, 0, width-1); +} + +ccl_device_inline float svm_image_texture_frac(float x, int *ix) +{ + int i = float_to_int(x) - ((x < 0.0f)? 1: 0); + *ix = i; + return x - (float)i; +} + +ccl_device float4 kernel_tex_image_interp(KernelGlobals *kg, int id, float x, float y) +{ + uint4 info = kernel_tex_fetch(__tex_image_packed_info, id*2); + uint width = info.x; + uint height = info.y; + uint offset = info.z; + + /* Image Options */ + uint interpolation = (info.w & (1 << 0)) ? INTERPOLATION_CLOSEST : INTERPOLATION_LINEAR; + uint extension; + if(info.w & (1 << 1)) + extension = EXTENSION_REPEAT; + else if(info.w & (1 << 2)) + extension = EXTENSION_EXTEND; + else + extension = EXTENSION_CLIP; + + float4 r; + int ix, iy, nix, niy; + if(interpolation == INTERPOLATION_CLOSEST) { + svm_image_texture_frac(x*width, &ix); + svm_image_texture_frac(y*height, &iy); + + if(extension == EXTENSION_REPEAT) { + ix = svm_image_texture_wrap_periodic(ix, width); + iy = svm_image_texture_wrap_periodic(iy, height); + } + else { + if(extension == EXTENSION_CLIP) { + if(x < 0.0f || y < 0.0f || x > 1.0f || y > 1.0f) { + return make_float4(0.0f, 0.0f, 0.0f, 0.0f); + } + } + /* Fall through. */ + /* EXTENSION_EXTEND */ + ix = svm_image_texture_wrap_clamp(ix, width); + iy = svm_image_texture_wrap_clamp(iy, height); + } + + r = svm_image_texture_read(kg, id, offset + ix + iy*width); + } + else { /* INTERPOLATION_LINEAR */ + float tx = svm_image_texture_frac(x*width - 0.5f, &ix); + float ty = svm_image_texture_frac(y*height - 0.5f, &iy); + + if(extension == EXTENSION_REPEAT) { + ix = svm_image_texture_wrap_periodic(ix, width); + iy = svm_image_texture_wrap_periodic(iy, height); + + nix = svm_image_texture_wrap_periodic(ix+1, width); + niy = svm_image_texture_wrap_periodic(iy+1, height); + } + else { + if(extension == EXTENSION_CLIP) { + if(x < 0.0f || y < 0.0f || x > 1.0f || y > 1.0f) { + return make_float4(0.0f, 0.0f, 0.0f, 0.0f); + } + } + nix = svm_image_texture_wrap_clamp(ix+1, width); + niy = svm_image_texture_wrap_clamp(iy+1, height); + ix = svm_image_texture_wrap_clamp(ix, width); + iy = svm_image_texture_wrap_clamp(iy, height); + } + + r = (1.0f - ty)*(1.0f - tx)*svm_image_texture_read(kg, id, offset + ix + iy*width); + r += (1.0f - ty)*tx*svm_image_texture_read(kg, id, offset + nix + iy*width); + r += ty*(1.0f - tx)*svm_image_texture_read(kg, id, offset + ix + niy*width); + r += ty*tx*svm_image_texture_read(kg, id, offset + nix + niy*width); + } + + return r; +} + + +ccl_device float4 kernel_tex_image_interp_3d(KernelGlobals *kg, int id, float x, float y, float z) +{ + uint4 info = kernel_tex_fetch(__tex_image_packed_info, id*2); + uint width = info.x; + uint height = info.y; + uint offset = info.z; + uint depth = kernel_tex_fetch(__tex_image_packed_info, id*2+1).x; + + /* Image Options */ + uint interpolation = (info.w & (1 << 0)) ? INTERPOLATION_CLOSEST : INTERPOLATION_LINEAR; + uint extension; + if(info.w & (1 << 1)) + extension = EXTENSION_REPEAT; + else if(info.w & (1 << 2)) + extension = EXTENSION_EXTEND; + else + extension = EXTENSION_CLIP; + + float4 r; + int ix, iy, iz, nix, niy, niz; + if(interpolation == INTERPOLATION_CLOSEST) { + svm_image_texture_frac(x*width, &ix); + svm_image_texture_frac(y*height, &iy); + svm_image_texture_frac(z*depth, &iz); + + if (extension == EXTENSION_REPEAT) { + ix = svm_image_texture_wrap_periodic(ix, width); + iy = svm_image_texture_wrap_periodic(iy, height); + iz = svm_image_texture_wrap_periodic(iz, depth); + } + else { + if (extension == EXTENSION_CLIP) { + if(x < 0.0f || y < 0.0f || z < 0.0f || + x > 1.0f || y > 1.0f || z > 1.0f) + return make_float4(0.0f, 0.0f, 0.0f, 0.0f); + } + /* Fall through. */ + /* EXTENSION_EXTEND */ + ix = svm_image_texture_wrap_clamp(ix, width); + iy = svm_image_texture_wrap_clamp(iy, height); + iz = svm_image_texture_wrap_clamp(iz, depth); + } + r = svm_image_texture_read(kg, id, offset + ix + iy*width + iz*width*height); + } + else { /* INTERPOLATION_LINEAR */ + float tx = svm_image_texture_frac(x*(float)width - 0.5f, &ix); + float ty = svm_image_texture_frac(y*(float)height - 0.5f, &iy); + float tz = svm_image_texture_frac(z*(float)depth - 0.5f, &iz); + + if(extension == EXTENSION_REPEAT) { + ix = svm_image_texture_wrap_periodic(ix, width); + iy = svm_image_texture_wrap_periodic(iy, height); + iz = svm_image_texture_wrap_periodic(iz, depth); + + nix = svm_image_texture_wrap_periodic(ix+1, width); + niy = svm_image_texture_wrap_periodic(iy+1, height); + niz = svm_image_texture_wrap_periodic(iz+1, depth); + } + else { + if (extension == EXTENSION_CLIP) + if(x < 0.0f || y < 0.0f || z < 0.0f || + x > 1.0f || y > 1.0f || z > 1.0f) + return make_float4(0.0f, 0.0f, 0.0f, 0.0f); + /* Fall through. */ + /* EXTENSION_EXTEND */ + nix = svm_image_texture_wrap_clamp(ix+1, width); + niy = svm_image_texture_wrap_clamp(iy+1, height); + niz = svm_image_texture_wrap_clamp(iz+1, depth); + + ix = svm_image_texture_wrap_clamp(ix, width); + iy = svm_image_texture_wrap_clamp(iy, height); + iz = svm_image_texture_wrap_clamp(iz, depth); + } + + r = (1.0f - tz)*(1.0f - ty)*(1.0f - tx)*svm_image_texture_read(kg, id, offset + ix + iy*width + iz*width*height); + r += (1.0f - tz)*(1.0f - ty)*tx*svm_image_t @@ Diff output truncated at 10240 characters. @@ _______________________________________________ Bf-blender-cvs mailing list [email protected] https://lists.blender.org/mailman/listinfo/bf-blender-cvs
