68 lines
1.8 KiB
C++
68 lines
1.8 KiB
C++
#include <GL/glew.h>
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#include <glm/gtc/matrix_transform.hpp>
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#include <iostream>
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#include "../models/Model.h"
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#include "Renderer.h"
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#include "../toolbox/math.h"
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namespace renderEngine
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{
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namespace renderer
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{
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static const float FOV = 70.0f;
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static const float NEAR_PLANE = 0.01f;
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static const float FAR_PLANE = 1000.0f;
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/*
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This function will load the projectionMatrix into the shader
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*/
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void Init(shaders::StaticShader& shader)
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{
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const glm::mat4 projectionMatrix =
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glm::perspective(glm::radians(FOV), (WINDOW_WIDTH / WINDOW_HEIGT), NEAR_PLANE, FAR_PLANE);
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shader.start();
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shader.loadProjectionMatrix(projectionMatrix);
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shader.stop();
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}
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/*
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This function will clear the screen.
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*/
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void Prepare()
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{
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glEnable(GL_DEPTH_TEST);
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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glClearColor(0.3f, 0.4f, 0.6f, 1.0f);
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}
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/*
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This function will Render a Model on the screen.
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*/
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void Render(entities::Entity& entity, shaders::StaticShader& shader)
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{
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const models::TexturedModel model = entity.getModel();
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const models::RawModel rawModel = model.rawModel;
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// Enable the model
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glBindVertexArray(rawModel.vaoID);
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// Enable the inputs for the vertexShader
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glEnableVertexAttribArray(0);
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glEnableVertexAttribArray(1);
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// Load the transformation of the model into the shader
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const glm::mat4 modelMatrix = toolbox::CreateModelMatrix(entity.getPosition(), entity.getRotation(), entity.getScale());
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shader.loadModelMatrix(modelMatrix);
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// Draw the model
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glActiveTexture(GL_TEXTURE0);
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glBindTexture(GL_TEXTURE_2D, model.texture.textureID);
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glDrawElements(GL_TRIANGLES, rawModel.vertexCount, GL_UNSIGNED_INT, 0);
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glDisableVertexAttribArray(0);
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glDisableVertexAttribArray(1);
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glBindVertexArray(0);
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}
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}
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} |