diff options
Diffstat (limited to 'intern/cycles/kernel/filter/filter_reconstruction.h')
| -rw-r--r-- | intern/cycles/kernel/filter/filter_reconstruction.h | 142 |
1 files changed, 77 insertions, 65 deletions
diff --git a/intern/cycles/kernel/filter/filter_reconstruction.h b/intern/cycles/kernel/filter/filter_reconstruction.h index ceda8f71f98..850f20584da 100644 --- a/intern/cycles/kernel/filter/filter_reconstruction.h +++ b/intern/cycles/kernel/filter/filter_reconstruction.h @@ -16,63 +16,75 @@ CCL_NAMESPACE_BEGIN -ccl_device_inline void kernel_filter_construct_gramian(int x, int y, +ccl_device_inline void kernel_filter_construct_gramian(int x, + int y, int storage_stride, - int dx, int dy, int t, + int dx, + int dy, + int t, int buffer_stride, int pass_stride, int frame_offset, bool use_time, const ccl_global float *ccl_restrict buffer, - const ccl_global float *ccl_restrict transform, + const ccl_global float *ccl_restrict + transform, ccl_global int *rank, float weight, ccl_global float *XtWX, ccl_global float3 *XtWY, int localIdx) { - if(weight < 1e-3f) { - return; - } + if (weight < 1e-3f) { + return; + } - int p_offset = y * buffer_stride + x; - int q_offset = (y+dy) * buffer_stride + (x+dx) + frame_offset; + int p_offset = y * buffer_stride + x; + int q_offset = (y + dy) * buffer_stride + (x + dx) + frame_offset; #ifdef __KERNEL_GPU__ - const int stride = storage_stride; + const int stride = storage_stride; #else - const int stride = 1; - (void) storage_stride; + const int stride = 1; + (void)storage_stride; #endif #ifdef __KERNEL_CUDA__ - ccl_local float shared_design_row[(DENOISE_FEATURES+1)*CCL_MAX_LOCAL_SIZE]; - ccl_local_param float *design_row = shared_design_row + localIdx*(DENOISE_FEATURES+1); + ccl_local float shared_design_row[(DENOISE_FEATURES + 1) * CCL_MAX_LOCAL_SIZE]; + ccl_local_param float *design_row = shared_design_row + localIdx * (DENOISE_FEATURES + 1); #else - float design_row[DENOISE_FEATURES+1]; + float design_row[DENOISE_FEATURES + 1]; #endif - float3 q_color = filter_get_color(buffer + q_offset, pass_stride); + float3 q_color = filter_get_color(buffer + q_offset, pass_stride); - /* If the pixel was flagged as an outlier during prefiltering, skip it. */ - if(ccl_get_feature(buffer + q_offset, 0) < 0.0f) { - return; - } + /* If the pixel was flagged as an outlier during prefiltering, skip it. */ + if (ccl_get_feature(buffer + q_offset, 0) < 0.0f) { + return; + } - filter_get_design_row_transform(make_int3(x, y, t), buffer + p_offset, - make_int3(x+dx, y+dy, t), buffer + q_offset, - pass_stride, *rank, design_row, transform, stride, use_time); + filter_get_design_row_transform(make_int3(x, y, t), + buffer + p_offset, + make_int3(x + dx, y + dy, t), + buffer + q_offset, + pass_stride, + *rank, + design_row, + transform, + stride, + use_time); #ifdef __KERNEL_GPU__ - math_trimatrix_add_gramian_strided(XtWX, (*rank)+1, design_row, weight, stride); - math_vec3_add_strided(XtWY, (*rank)+1, design_row, weight * q_color, stride); + math_trimatrix_add_gramian_strided(XtWX, (*rank) + 1, design_row, weight, stride); + math_vec3_add_strided(XtWY, (*rank) + 1, design_row, weight * q_color, stride); #else - math_trimatrix_add_gramian(XtWX, (*rank)+1, design_row, weight); - math_vec3_add(XtWY, (*rank)+1, design_row, weight * q_color); + math_trimatrix_add_gramian(XtWX, (*rank) + 1, design_row, weight); + math_vec3_add(XtWY, (*rank) + 1, design_row, weight * q_color); #endif } -ccl_device_inline void kernel_filter_finalize(int x, int y, +ccl_device_inline void kernel_filter_finalize(int x, + int y, ccl_global float *buffer, ccl_global int *rank, int storage_stride, @@ -82,47 +94,47 @@ ccl_device_inline void kernel_filter_finalize(int x, int y, int sample) { #ifdef __KERNEL_GPU__ - const int stride = storage_stride; + const int stride = storage_stride; #else - const int stride = 1; - (void) storage_stride; + const int stride = 1; + (void)storage_stride; #endif - if(XtWX[0] < 1e-3f) { - /* There is not enough information to determine a denoised result. - * As a fallback, keep the original value of the pixel. */ - return; - } - - /* The weighted average of pixel colors (essentially, the NLM-filtered image). - * In case the solution of the linear model fails due to numerical issues or - * returns non-sensical negative values, fall back to this value. */ - float3 mean_color = XtWY[0]/XtWX[0]; - - math_trimatrix_vec3_solve(XtWX, XtWY, (*rank)+1, stride); - - float3 final_color = XtWY[0]; - if(!isfinite3_safe(final_color) || - (final_color.x < -0.01f || final_color.y < -0.01f || final_color.z < -0.01f)) - { - final_color = mean_color; - } - - /* Clamp pixel value to positive values. */ - final_color = max(final_color, make_float3(0.0f, 0.0f, 0.0f)); - - ccl_global float *combined_buffer = buffer + (y*buffer_params.y + x + buffer_params.x)*buffer_params.z; - if(buffer_params.w >= 0) { - final_color *= sample; - if(buffer_params.w > 0) { - final_color.x += combined_buffer[buffer_params.w+0]; - final_color.y += combined_buffer[buffer_params.w+1]; - final_color.z += combined_buffer[buffer_params.w+2]; - } - } - combined_buffer[0] = final_color.x; - combined_buffer[1] = final_color.y; - combined_buffer[2] = final_color.z; + if (XtWX[0] < 1e-3f) { + /* There is not enough information to determine a denoised result. + * As a fallback, keep the original value of the pixel. */ + return; + } + + /* The weighted average of pixel colors (essentially, the NLM-filtered image). + * In case the solution of the linear model fails due to numerical issues or + * returns non-sensical negative values, fall back to this value. */ + float3 mean_color = XtWY[0] / XtWX[0]; + + math_trimatrix_vec3_solve(XtWX, XtWY, (*rank) + 1, stride); + + float3 final_color = XtWY[0]; + if (!isfinite3_safe(final_color) || + (final_color.x < -0.01f || final_color.y < -0.01f || final_color.z < -0.01f)) { + final_color = mean_color; + } + + /* Clamp pixel value to positive values. */ + final_color = max(final_color, make_float3(0.0f, 0.0f, 0.0f)); + + ccl_global float *combined_buffer = buffer + (y * buffer_params.y + x + buffer_params.x) * + buffer_params.z; + if (buffer_params.w >= 0) { + final_color *= sample; + if (buffer_params.w > 0) { + final_color.x += combined_buffer[buffer_params.w + 0]; + final_color.y += combined_buffer[buffer_params.w + 1]; + final_color.z += combined_buffer[buffer_params.w + 2]; + } + } + combined_buffer[0] = final_color.x; + combined_buffer[1] = final_color.y; + combined_buffer[2] = final_color.z; } CCL_NAMESPACE_END |