62 lines
1.3 KiB
C++
62 lines
1.3 KiB
C++
#include "material.h"
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#include "../lib/glm/glm.hpp"
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#include "shader.h"
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#include "state.h"
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#include "texture.h"
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Material::Material(const std::shared_ptr<Texture>& tex,
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const std::shared_ptr<Shader>& shader)
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: shader_(shader), texture_(tex)
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{
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}
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const std::shared_ptr<Shader>& Material::shader() const
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{
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return shader_ ? shader_ : state::default_shader;
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}
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std::shared_ptr<Shader>& Material::shader()
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{
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return shader_ ? shader_ : state::default_shader;
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}
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void Material::set_shader(const std::shared_ptr<Shader>& shader)
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{
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shader_ = shader;
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}
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void Material::prepare()
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{
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// Activate shader
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std::shared_ptr<Shader> active_shader = shader();
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if (!active_shader)
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return;
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active_shader->use();
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// Set uniform variables
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const glm::mat4 mvp =
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state::projection_matrix * state::view_matrix * state::model_matrix;
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const int mvp_loc = active_shader->uniform_location("mvp");
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Shader::set_mat4(mvp_loc, mvp);
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// Set texture-related uniforms
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const int use_texture_loc =
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active_shader->uniform_location("useTexture");
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if (texture_) {
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Shader::set_int(use_texture_loc, 1);
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const int sampler_loc =
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active_shader->uniform_location("texSampler");
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Shader::set_int(sampler_loc, 0); // Texture unit 0
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} else {
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Shader::set_int(use_texture_loc, 0);
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}
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// Bind texture if available
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if (texture_) {
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texture_->bind();
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}
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}
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