-#include "camera.h"
-#include "world.h"
-
-/* FIXME */
-VG_STATIC vg_tex2d tex_terrain_noise = { .path = "textures/garbage.qoi",
- .flags = VG_TEXTURE_NEAREST };
-
-VG_STATIC void world_render_init(void)
-{
- vg_info( "Loading default world textures\n" );
-
- vg_acquire_thread_sync();
- {
- vg_tex2d_init( (vg_tex2d *[]){ &tex_terrain_noise }, 1 );
-
-
- vg_info( "Allocate uniform buffers\n" );
- for( int i=0; i<4; i++ )
- {
- world_instance *world = &world_global.worlds[i];
- world->ubo_bind_point = i;
-
- glGenBuffers( 1, &world->ubo_lighting );
- glBindBuffer( GL_UNIFORM_BUFFER, world->ubo_lighting );
- glBufferData( GL_UNIFORM_BUFFER, sizeof(struct ub_world_lighting),
- NULL, GL_DYNAMIC_DRAW );
-
- glBindBufferBase( GL_UNIFORM_BUFFER, i, world->ubo_lighting );
- VG_CHECK_GL_ERR();
- }
-
- vg_info( "Allocate frame buffers\n" );
- for( int i=0; i<4; i++ )
- {
- world_instance *world = &world_global.worlds[i];
- struct framebuffer *fb = &world->heightmap;
-
- fb->display_name = NULL;
- fb->link = NULL;
- fb->fixed_w = 1024;
- fb->fixed_h = 1024;
- fb->resolution_div = 0;
-
- /* TODO: We could get away with this being R16u, and just have it be
- * a normed value between min and max of the bounding box Y */
-
- fb->attachments[0].display_name = NULL;
- fb->attachments[0].purpose = k_framebuffer_attachment_type_colour;
- fb->attachments[0].internalformat = GL_RG16F;
- fb->attachments[0].format = GL_RG;
- fb->attachments[0].type = GL_FLOAT;
- fb->attachments[0].attachment = GL_COLOR_ATTACHMENT0;
-
- fb->attachments[1].purpose = k_framebuffer_attachment_type_none;
- fb->attachments[2].purpose = k_framebuffer_attachment_type_none;
- fb->attachments[3].purpose = k_framebuffer_attachment_type_none;
- fb->attachments[4].purpose = k_framebuffer_attachment_type_none;
-
- render_fb_allocate( fb );
- }
- }
- vg_release_thread_sync();
-}
-
-VG_STATIC void world_link_lighting_ub( world_instance *world, GLuint shader )
-{
- GLuint idx = glGetUniformBlockIndex( shader, "ub_world_lighting" );
- glUniformBlockBinding( shader, idx, world->ubo_bind_point );
-}
-
-VG_STATIC void world_bind_position_texture( world_instance *world,
- GLuint shader, GLuint location,
- int slot )
-{
- render_fb_bind_texture( &world->heightmap, 0, slot );
- glUniform1i( location, slot );
-}
-
-VG_STATIC void world_bind_light_array( world_instance *world,
- GLuint shader, GLuint location,
- int slot )
-{
- glActiveTexture( GL_TEXTURE0 + slot );
- glBindTexture( GL_TEXTURE_BUFFER, world->tex_light_entities );
- glUniform1i( location, slot );
-}
-
-VG_STATIC void world_bind_light_index( world_instance *world,
- GLuint shader, GLuint location,
- int slot )
-{
- glActiveTexture( GL_TEXTURE0 + slot );
- glBindTexture( GL_TEXTURE_3D, world->tex_light_cubes );
- glUniform1i( location, slot );
-}
-
-VG_STATIC void render_world_depth( world_instance *world, camera *cam );
-
-/*
- * Rendering
- */
-
-VG_STATIC void bind_terrain_noise(void)
-{
- vg_tex2d_bind( &tex_terrain_noise, 0 );
-}
-
-typedef void (*func_bind_point)( world_instance *world,
- struct world_surface *mat );
-
-VG_STATIC void world_render_if( world_instance *world,
- enum mdl_shader shader,
- enum geo_type geo_type,
- func_bind_point bind_point )
-{
-
- for( int i=0; i<world->surface_count; i++ )
- {
- struct world_surface *mat = &world->surfaces[i];
-
- if( mat->info.shader == shader )
- {
- mdl_submesh *sm;
-
- if( geo_type == k_geo_type_solid )
- sm = &mat->sm_geo;
- else
- sm = &mat->sm_no_collide;
-
- if( !sm->indice_count )
- continue;
-
- bind_point( world, mat );
- mdl_draw_submesh( sm );
- }
- }
-}
-
-VG_STATIC
-void world_render_both_stages( world_instance *world,
- enum mdl_shader shader,
- func_bind_point bind_point )
-{
- mesh_bind( &world->mesh_geo );
- world_render_if( world, shader, k_geo_type_solid, bind_point );
-
- glDisable( GL_CULL_FACE );
- mesh_bind( &world->mesh_no_collide );
- world_render_if( world, shader, k_geo_type_nonsolid, bind_point );
- glEnable( GL_CULL_FACE );
-}
-
-VG_STATIC void bindpoint_diffuse_texture1( world_instance *world,
- struct world_surface *mat )
-{
- glActiveTexture( GL_TEXTURE1 );
- glBindTexture( GL_TEXTURE_2D, world->textures[ mat->info.tex_diffuse ] );
-}
-
-VG_STATIC void render_world_vb( world_instance *world, camera *cam )
-{
- m4x3f identity_matrix;
- m4x3_identity( identity_matrix );
-
- shader_scene_vertex_blend_use();
- shader_scene_vertex_blend_uTexGarbage(0);
- shader_scene_vertex_blend_uTexGradients(1);
- world_link_lighting_ub( world, _shader_scene_vertex_blend.id );
- world_bind_position_texture( world, _shader_scene_vertex_blend.id,
- _uniform_scene_vertex_blend_g_world_depth, 2 );
- world_bind_light_array( world, _shader_scene_vertex_blend.id,
- _uniform_scene_vertex_blend_uLightsArray, 3 );
- world_bind_light_index( world, _shader_scene_vertex_blend.id,
- _uniform_scene_vertex_blend_uLightsIndex, 4 );
-
- vg_tex2d_bind( &tex_terrain_noise, 0 );
-
- shader_scene_vertex_blend_uPv( cam->mtx.pv );
- shader_scene_vertex_blend_uPvmPrev( cam->mtx_prev.pv );
- shader_scene_vertex_blend_uMdl( identity_matrix );
- shader_scene_vertex_blend_uCamera( cam->transform[3] );
- shader_scene_vertex_blend_uBoard0( TEMP_BOARD_0 );
- shader_scene_vertex_blend_uBoard1( TEMP_BOARD_1 );
-
- world_render_both_stages( world, k_shader_standard_vertex_blend,
- bindpoint_diffuse_texture1 );
-}
-
-VG_STATIC void render_world_standard( world_instance *world, camera *cam )
-{
- m4x3f identity_matrix;
- m4x3_identity( identity_matrix );
-
- shader_scene_standard_use();
- shader_scene_standard_uTexGarbage(0);
- shader_scene_standard_uTexMain(1);
- shader_scene_standard_uPv( cam->mtx.pv );
- shader_scene_standard_uPvmPrev( cam->mtx_prev.pv );
-
- world_link_lighting_ub( world, _shader_scene_standard.id );
- world_bind_position_texture( world, _shader_scene_standard.id,
- _uniform_scene_standard_g_world_depth, 2 );
- world_bind_light_array( world, _shader_scene_standard.id,
- _uniform_scene_standard_uLightsArray, 3 );
- world_bind_light_index( world, _shader_scene_standard.id,
- _uniform_scene_standard_uLightsIndex, 4 );
-
- bind_terrain_noise();