Method ShadowMapRenderer

src/Renderer/ShadowMapRenderer.cpp:7–34

#include "ShadowMapRenderer.h"

ShadowMapRenderer::ShadowMapRenderer(const shared_ptr<ONFSTrack> &activeTrack): track(activeTrack) {
    // -----------------------
    // Configure depth map FBO
    // -----------------------
    glGenFramebuffers(1, &depthMapFBO);
    // create depth texture
    glGenTextures(1, &depthTextureID);
    glBindTexture(GL_TEXTURE_2D, depthTextureID);
    glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT, SHADOW_WIDTH, SHADOW_HEIGHT, 0, GL_DEPTH_COMPONENT, GL_FLOAT, NULL);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
    /*glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
    float borderColor[] = { 1.0f, 1.0f, 1.0f, 1.0f };
    glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_BORDER_COLOR, borderColor);*/
    // attach depth texture as FBO's depth buffer
    glBindFramebuffer(GL_FRAMEBUFFER, depthMapFBO);
    glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D, depthTextureID, 0);
    glDrawBuffer(GL_NONE);
    glReadBuffer(GL_NONE);

    // Always check that our framebuffer is ok
    ASSERT(glCheckFramebufferStatus(GL_FRAMEBUFFER) == GL_FRAMEBUFFER_COMPLETE, "Depth FBO is nae good.");

    glBindFramebuffer(GL_FRAMEBUFFER, 0);
}

void ShadowMapRenderer::renderShadowMap(const glm::mat4 &lightViewMatrix,  std::vector<int> activeTrackBlockIDs, const std::shared_ptr<Car> &car){
    /* ------- SHADOW MAPPING ------- */