render plan api plan

// Create render plan objects gfks_render_plan *deferred_render_plan = gfks_create_render_plan(context);

gfks_render_pass *geometry_pass = gfks_create_render_pass(context); gfks_render_pass *diffuse_pass = gfks_create_render_pass(context); gfks_render_pass *specular_pass = gfks_create_render_pass(context); gfks_render_pass *composite_pass = gfks_create_render_pass(context);

// Add passes to our plan (order does not matter) deferred_render_plan->add_render_pass(deferred_render_plan, geometry_pass); deferred_render_plan->add_render_pass(deferred_render_plan, diffuse_pass); deferred_render_plan->add_render_pass(deferred_render_plan, specular_pass); deferred_render_plan->add_render_pass(deferred_render_plan, composite_pass);

// Define dependencies diffuse_pass->depends_on(diffuse_pass, geometry_pass); specular_pass->depends_on(specular_pass, geometry_pass); composite_pass->depends_on(composite_pass, diffuse_pass); composite_pass->depends_on(composite_pass, specular_pass);

// Set up render pass info // // def_shaderset_attr_* defines the existance of an input for a specified chain of shaders - // the 2nd arg is always the shaderset index within the pass info we want to feed this input to // the 3nd arg is always an input index for the shader. The data type within the shader depends on the call. uint32_t shaderset_index = diffuse_pass->add_shaderset(shaders); diffuse_pass->def_shaderset_attr_meshes(diffuse_pass, shaderset_index, 0); diffuse_pass->def_shaderset_attr_mesh_vertex_colors(diffuse_pass, shaderset_index, 1); diffuse_pass->def_shaderset_attr_global_transformation_matrix(diffuse_pass, shaderset_index, 2); diffuse_pass->def_shaderset_attr_mesh_transformation_matrix(diffuse_pass, shaderset_index, 3); diffuse_pass->def_shaderset_attr_previous_pass(diffuse_pass, shaderset_index, 4, geometry_pass); // should error here if we don't have the dep // etc etc for other passes

// Define the surface(s) that we want to be presented to deferred_render_plan->add_presentation_surface(deferred_render_plan, surface);

// All done planning - finalize the plan! deferred_render_plan->finalize_plan();

// Give our passes some input data // // set_shaderset_attr_* sets the value of a specified attr, and can be called any number of times // 2nd arg is always the input index for the shader (we already have a unique ID, no need to make another) diffuse_pass->set_shaderset_attr_meshes(diffuse_pass, 0, mesh_array); // mesh_array could be a gfks_meshgroup object to do your memory stuffs diffuse_pass->set_shaderset_attr_mesh_vertex_colors(diffuse_pass, 1, mesh_index, color_array); diffuse_pass->set_shaderset_attr_global_transformation_matrix(diffuse_pass, 2, matrix); diffuse_pass->set_shaderset_attr_mesh_transformation_matrix(diffuse_pass, 3, mesh_index, matrix); // etc etc for other passes

// Draw loop while (drawing frames) { deferred_render_plan.execute() }