diff options
Diffstat (limited to 'source/blender/draw/intern/draw_pointcloud.cc')
-rw-r--r-- | source/blender/draw/intern/draw_pointcloud.cc | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/source/blender/draw/intern/draw_pointcloud.cc b/source/blender/draw/intern/draw_pointcloud.cc new file mode 100644 index 00000000000..cf46e53129a --- /dev/null +++ b/source/blender/draw/intern/draw_pointcloud.cc @@ -0,0 +1,103 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later + * Copyright 2017 Blender Foundation. All rights reserved. */ + +/** \file + * \ingroup draw + * + * \brief Contains procedural GPU hair drawing methods. + */ + +#include "BLI_string_utils.h" +#include "BLI_utildefines.h" + +#include "DNA_customdata_types.h" +#include "DNA_pointcloud_types.h" + +#include "BKE_curves.hh" +#include "BKE_geometry_set.hh" + +#include "GPU_batch.h" +#include "GPU_capabilities.h" +#include "GPU_compute.h" +#include "GPU_material.h" +#include "GPU_shader.h" +#include "GPU_texture.h" +#include "GPU_vertex_buffer.h" + +#include "DRW_gpu_wrapper.hh" +#include "DRW_render.h" + +#include "draw_attributes.h" +#include "draw_cache_impl.h" +#include "draw_common.h" +#include "draw_manager.h" +#include "draw_pointcloud_private.hh" + +static GPUVertBuf *g_dummy_vbo = nullptr; + +void DRW_pointcloud_init() +{ + if (g_dummy_vbo == nullptr) { + /* initialize vertex format */ + GPUVertFormat format = {0}; + uint dummy_id = GPU_vertformat_attr_add(&format, "dummy", GPU_COMP_F32, 4, GPU_FETCH_FLOAT); + + g_dummy_vbo = GPU_vertbuf_create_with_format_ex( + &format, GPU_USAGE_STATIC | GPU_USAGE_FLAG_BUFFER_TEXTURE_ONLY); + + const float vert[4] = {0.0f, 0.0f, 0.0f, 0.0f}; + GPU_vertbuf_data_alloc(g_dummy_vbo, 1); + GPU_vertbuf_attr_fill(g_dummy_vbo, dummy_id, vert); + } +} + +DRWShadingGroup *DRW_shgroup_pointcloud_create_sub(Object *object, + DRWShadingGroup *shgrp_parent, + GPUMaterial *gpu_material) +{ + PointCloud &pointcloud = *static_cast<PointCloud *>(object->data); + + DRWShadingGroup *shgrp = DRW_shgroup_create_sub(shgrp_parent); + + /* Fix issue with certain driver not drawing anything if there is no texture bound to + * "ac", "au", "u" or "c". */ + DRW_shgroup_buffer_texture(shgrp, "u", g_dummy_vbo); + DRW_shgroup_buffer_texture(shgrp, "au", g_dummy_vbo); + DRW_shgroup_buffer_texture(shgrp, "c", g_dummy_vbo); + DRW_shgroup_buffer_texture(shgrp, "ac", g_dummy_vbo); + + GPUVertBuf *pos_rad_buf = pointcloud_position_and_radius_get(&pointcloud); + DRW_shgroup_buffer_texture(shgrp, "ptcloud_pos_rad_tx", pos_rad_buf); + + if (gpu_material != nullptr) { + + // const DRW_Attributes &attrs = cache->attr_used; + // for (int i = 0; i < attrs.num_requests; i++) { + // const DRW_AttributeRequest &request = attrs.requests[i]; + + // char sampler_name[32]; + // /* \note reusing curve attribute function. */ + // drw_curves_get_attribute_sampler_name(request.attribute_name, sampler_name); + + // GPUTexture *attribute_buf = DRW_pointcloud_evaluated_attribute(&pointcloud); + // if (!cache->attributes_tex[i]) { + // continue; + // } + // DRW_shgroup_buffer_texture_ref(shgrp, sampler_name, attribute_buf); + // } + + /* Only single material supported for now. */ + GPUBatch **geom = pointcloud_surface_shaded_get(&pointcloud, &gpu_material, 1); + DRW_shgroup_call(shgrp, geom[0], object); + } + else { + GPUBatch *geom = pointcloud_surface_get(&pointcloud); + DRW_shgroup_call(shgrp, geom, object); + } + return shgrp; +} + +void DRW_pointcloud_free() +{ + GPU_VERTBUF_DISCARD_SAFE(g_dummy_vbo); +} |