diguyOglGraphicsShaderTechnique.cpp

DI-Guy API Version 12.5.1

This file was automatically generated from diguyOglGraphicsShaderTechnique.cpp. Do not edit this file directly; the changes will be lost.

#include <string> #include <diguyScenario.h> #include <diguyApp.h> #include "diguyOglGraphicsShaderTechnique.h" #include "diguyOglGraphicsShaderProgram.h" diguyOglGraphicsShaderTechnique::diguyOglGraphicsShaderTechnique(void* internal_data) :     diguyGraphicsShaderTechnique(internal_data) {     ; } diguyOglGraphicsShaderTechnique::~diguyOglGraphicsShaderTechnique() {     ; } //virtual diguyGraphicsShaderProgram * diguyOglGraphicsShaderTechnique::pick_shader_program(const diguyShaderPickDescription & desc) {     /* You can just do this if you want default behavior      * return diguyGraphicsShaderProgram::pick_shader_program(desc);      */     if(desc.m_current_render_flags & DIGUY_RENDER_PASS_INTERSECTION) {         return get_intersection_shader();     }     else if(desc.m_current_render_flags & DIGUY_RENDER_PASS_SHADOW ){         return get_shadow_pass_shader();     }     else     {         // automatic shader LOD are specified         if(desc.m_shader_lod == -1)         {             //The simple case is just to do:             //return get_shader_by_distance( desc.m_render_distance, desc.m_max_quality_level);                          int index = get_program_index_by_distance(desc.m_render_distance / desc.m_shader_lod_bias, desc.m_max_quality_level);             if(index != -1)             {                 diguyScenario * scenario = diguyApp::get_app()->get_scenario_at_index(0);                 int num_effects = scenario->get_num_active_fire_effects();                 if(num_effects > 0){                     diguyGraphicsShaderProgram * program = m_shaders_with_point_lights[index];                     if(program){                      return program;                     }                 }                 else{                     return get_shader_lod_program_at_index(index);                 }             }         }         else         {             if(desc.m_shader_lod > get_num_shader_lod_programs()){                 return get_shader_lod_program_at_index(get_num_shader_lod_programs()-1);             }             else{                 return get_shader_lod_program_at_index(desc.m_shader_lod-1);             }         }     }     // falls back to the default behavior     return NULL; }; void diguyOglGraphicsShaderTechnique::build() {     int i;     for(i = 0; i < get_num_shader_lod_programs(); i++)     {         diguyOglGraphicsShaderProgram* program =             dynamic_cast<diguyOglGraphicsShaderProgram *>(get_shader_lod_program_at_index(i));         diguyOglGraphicsShaderProgram * new_program = NULL;         // the base program defaults to off so we can detect and turn on         if(program && program->m_bind_location_ufrm_light_array != -1 ||             program->has_additional_feature("POINT_LIGHT_SUPPORT"))         {             std::string new_program_name = program->get_name();             new_program_name += ":point_lights";             //printf("Compiling additional shader '%s' \n", new_program_name.c_str());             new_program = dynamic_cast<diguyOglGraphicsShaderProgram *>(find_or_create_shader_variation(program, new_program_name.c_str()));             new_program->m_include_point_lights = 1;             new_program->load();         }         m_shaders_with_point_lights.push_back(new_program);         if(new_program){             add_additional_shader(new_program);         }     } }

Create and return an object of a subclass of diguyGraphicsShaderTechnique. This function will be called whenever DI-Guy requires a shader technique object.

diguyGraphicsShaderTechnique* diguyOglGraphicsShaderTechnique_create_func(void* internal_data) {     return new diguyOglGraphicsShaderTechnique(internal_data); }