eevee_velocity_info.hh

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/* SPDX-FileCopyrightText: 2023 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
 
#include "eevee_defines.hh"
#include "gpu_shader_create_info.hh"
 
/* -------------------------------------------------------------------- */
/* Pass world space deltas to the fragment shader.
 * This is to make sure that the resulting motion vectors are valid even with displacement. */
GPU_SHADER_INTERFACE_INFO(eevee_velocity_surface_iface, "motion")
    .smooth(Type::VEC3, "prev")
    .smooth(Type::VEC3, "next");
 
GPU_SHADER_CREATE_INFO(eevee_velocity_camera)
    .define("VELOCITY_CAMERA")
    .uniform_buf(VELOCITY_CAMERA_PREV_BUF, "CameraData", "camera_prev")
    .uniform_buf(VELOCITY_CAMERA_CURR_BUF, "CameraData", "camera_curr")
    .uniform_buf(VELOCITY_CAMERA_NEXT_BUF, "CameraData", "camera_next");
 
GPU_SHADER_CREATE_INFO(eevee_velocity_geom)
    .define("MAT_VELOCITY")
    .storage_buf(VELOCITY_OBJ_PREV_BUF_SLOT, Qualifier::READ, "mat4", "velocity_obj_prev_buf[]")
    .storage_buf(VELOCITY_OBJ_NEXT_BUF_SLOT, Qualifier::READ, "mat4", "velocity_obj_next_buf[]")
    .storage_buf(VELOCITY_GEO_PREV_BUF_SLOT, Qualifier::READ, "vec4", "velocity_geo_prev_buf[]")
    .storage_buf(VELOCITY_GEO_NEXT_BUF_SLOT, Qualifier::READ, "vec4", "velocity_geo_next_buf[]")
    .storage_buf(VELOCITY_INDIRECTION_BUF_SLOT,
                 Qualifier::READ,
                 "VelocityIndex",
                 "velocity_indirection_buf[]")
    .vertex_out(eevee_velocity_surface_iface)
    .fragment_out(0, Type::VEC4, "out_velocity")
    .additional_info("eevee_velocity_camera");
 
GPU_SHADER_CREATE_INFO(eevee_vertex_copy)
    .compute_source("eevee_vertex_copy_comp.glsl")
    .local_group_size(VERTEX_COPY_GROUP_SIZE)
    .storage_buf(0, Qualifier::READ, "float", "in_buf[]")
    .storage_buf(1, Qualifier::WRITE, "vec4", "out_buf[]")
    .push_constant(Type::INT, "start_offset")
    .push_constant(Type::INT, "vertex_stride")
    .push_constant(Type::INT, "vertex_count")
    .do_static_compilation(true);