armory3d.armortools/paint/sources/render_path_preview.ts

function render_path_preview_init() {

	{
		let t: render_target_t = render_target_create();
		t.name                 = "texpreview";
		t.width                = 1;
		t.height               = 1;
		t.format               = "RGBA64";
		render_path_create_render_target(t);
	}
	{
		let t: render_target_t = render_target_create();
		t.name                 = "texpreview_icon";
		t.width                = 1;
		t.height               = 1;
		t.format               = "RGBA64";
		render_path_create_render_target(t);
	}

	let size: i32 = math_floor(util_render_material_preview_size * 2.0);

	{
		let t: render_target_t = render_target_create();
		t.name                 = "mmain";
		t.width                = size;
		t.height               = size;
		t.format               = "D32";
		t.scale                = render_path_base_get_super_sampling();
		render_path_create_render_target(t);
	}

	{
		let t: render_target_t = render_target_create();
		t.name                 = "mtex";
		t.width                = size;
		t.height               = size;
		t.format               = "RGBA64";
		t.scale                = render_path_base_get_super_sampling();
		render_path_create_render_target(t);
	}

	{
		let t: render_target_t = render_target_create();
		t.name                 = "mgbuffer0";
		t.width                = size;
		t.height               = size;
		t.format               = "RGBA64";
		t.scale                = render_path_base_get_super_sampling();
		render_path_create_render_target(t);
	}

	{
		let t: render_target_t = render_target_create();
		t.name                 = "mgbuffer1";
		t.width                = size;
		t.height               = size;
		t.format               = "RGBA64";
		t.scale                = render_path_base_get_super_sampling();
		render_path_create_render_target(t);
	}
}

function render_path_preview_commands_preview() {
	render_path_set_target("mgbuffer0", null, "mmain", gpu_clear_t.COLOR | gpu_clear_t.DEPTH, 0xffffffff, 1.0);
	let additional: string[] = [ "mgbuffer1" ];
	render_path_set_target("mgbuffer0", additional, "mmain");
	render_path_draw_meshes("mesh");

	// Deferred light
	render_path_set_target("mtex");
	render_path_bind_target("mmain", "gbufferD");
	render_path_bind_target("mgbuffer0", "gbuffer0");
	render_path_bind_target("mgbuffer1", "gbuffer1");
	render_path_bind_target("empty_white", "ssaotex");
	render_path_draw_shader("Scene/deferred_light/deferred_light");

	render_path_set_target("mtex", null, "mmain");
	render_path_draw_skydome("Scene/world_pass/world_pass");

	let framebuffer: string              = "texpreview";
	let selected_mat: slot_material_t    = context_raw.material;
	let texpreview: render_target_t      = map_get(render_path_render_targets, "texpreview");
	let texpreview_icon: render_target_t = map_get(render_path_render_targets, "texpreview_icon");
	texpreview._image                    = selected_mat.image;
	texpreview_icon._image               = selected_mat.image_icon;

	render_path_set_target(framebuffer);
	render_path_bind_target("mtex", "tex");
	render_path_draw_shader("Scene/compositor_pass/compositor_pass");

	render_path_set_target("texpreview_icon");
	render_path_bind_target("texpreview", "tex");
	render_path_draw_shader("Scene/supersample_resolve/supersample_resolveRGBA64");
}

function render_path_preview_commands_decal() {
	render_path_set_target("gbuffer0", null, "main", gpu_clear_t.COLOR | gpu_clear_t.DEPTH, 0xffffffff, 1.0);
	let additional: string[] = [ "gbuffer1" ];
	render_path_set_target("gbuffer0", additional, "main");
	render_path_draw_meshes("mesh");

	// Deferred light
	let output: string = "gbuffer2";
	render_path_set_target(output);
	render_path_bind_target("main", "gbufferD");
	render_path_bind_target("gbuffer0", "gbuffer0");
	render_path_bind_target("gbuffer1", "gbuffer1");
	render_path_bind_target("empty_white", "ssaotex");
	render_path_draw_shader("Scene/deferred_light/deferred_light");

	render_path_set_target(output, null, "main");
	render_path_draw_skydome("Scene/world_pass/world_pass");

	let framebuffer: string         = "texpreview";
	let texpreview: render_target_t = map_get(render_path_render_targets, "texpreview");
	texpreview._image               = context_raw.decal_image;

	render_path_set_target(framebuffer);

	render_path_bind_target(output, "tex");
	render_path_draw_shader("Scene/compositor_pass/compositor_pass");
}