X-Git-Url: https://gitweb.ps.run/subsurface_scattering/blobdiff_plain/c99ecda7bed596922125f6b1ef1ef2ae8f27703e..416072629c59a86ced2c20fcab625914adc64ebf:/src/main2.cpp

diff --git a/src/main2.cpp b/src/main2.cpp
index 206466d..e57639a 100644
--- a/src/main2.cpp
+++ b/src/main2.cpp
@@ -20,6 +20,10 @@
 #include <assimp/postprocess.h>
 #include <assimp/scene.h>
 
+
+// sample positions and weights for a Gaussian kernel from 
+// Hable, John ; Borshukov, George ; Hejl, Jim: Fast Skin Shading. In: ShaderX7, ShaderX : Charles River Media, 2009, S. 161–173
+
 float samplePositions[] = {
   0.000000f,  0.000000f,
   1.633992f,  0.036795f,
@@ -383,7 +387,6 @@ int main() {
   GLuint shaderProgramIrradiance = compileShaders("shaders/ts_vert_irradiance.glsl", "shaders/ts_frag_irradiance.glsl");
   GLuint shaderProgramCombine = compileShaders("shaders/ts_vert.glsl", "shaders/ts_frag.glsl");
 
-  //model m = loadModel("models/Isotrop-upperjaw.ply");
   model m = loadModel("models/african_head/african_head.obj");
 
   arccam arcCam;
@@ -409,10 +412,10 @@ int main() {
     bool freecam = false;
     int renderState = 1;
     float color[3] = { 0.7f, 0.4f, 0.4f };
-    glm::vec3 lightPos = glm::vec3(0.0f, 0.0f, 0.25f);
+    glm::vec3 lightPos = glm::vec3(0.0f, 0.0f, 2.5f);
     float transmittanceScale = 0.005f;
-    float powBase = 2.718;
-    float powFactor = 1;
+    float powBase = 2;
+    float powFactor = 1.5;
   } DefaultOptions;
 
   auto options = DefaultOptions;
@@ -470,7 +473,7 @@ int main() {
 
     prevMouse = sf::Mouse::isButtonPressed(sf::Mouse::Right);
 
-    // Render Shadowmap
+    // Render Shadowmap to fbo
 
     glBindFramebuffer(GL_FRAMEBUFFER, fb_irradiance.fbo);
     glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
@@ -514,9 +517,7 @@ int main() {
 
     m.draw();
 
-    
-
-    // Render fbo to screen
+    // Render model and calculate light spread and translucency in shader
 
     glBindFramebuffer(GL_FRAMEBUFFER, 0);
     glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
@@ -569,27 +570,17 @@ int main() {
     glActiveTexture(GL_TEXTURE0 + 0);
     glBindTexture(GL_TEXTURE_2D, fb_irradiance.renderTexture);
 
-    // glBindVertexArray(fb_irradiance.screenVAO);
-    // glUniform1i(glGetUniformLocation(fb_irradiance.screenShaderProgram, "shadowmapTexture"), 0);
-    // glActiveTexture(GL_TEXTURE0 + 0);
-    // glBindTexture(GL_TEXTURE_2D, fb_irradiance.renderTexture);
-    // glDrawArrays(GL_TRIANGLES, 0, 6);
-    // glBindVertexArray(0);
-
     m.draw();
 
-
+    // menu
 
     ImGui::SFML::Update(window, deltaClock.restart());
 
     ImGui::Begin("Options");
     ImGui::Checkbox("Wireframe", &options.wireframe);
     ImGui::Checkbox("Free Cam", &options.freecam);
-    ImGui::InputInt("Render State", &options.renderState);
     ImGui::DragFloat3("Color", options.color, 0.01, 0, 1);
     ImGui::DragFloat("Transmittance Scale", &options.transmittanceScale, 0.0001f, 0, 0.3);
-    ImGui::DragFloat("Pow Base", &options.powBase, 0.01f, 0, 4);
-    ImGui::DragFloat("Pow Factor", &options.powFactor, 0.01f, 0, 3);
     ImGui::DragFloat3("Light Pos", glm::value_ptr(options.lightPos), 0.01, -5, 5);
     if (options.freecam) {
       ImGui::LabelText("Position", "%f %f %f", freeCam.pos.x, freeCam.pos.y, freeCam.pos.z);