live coding 5

rtglive5/src/LiveApp.cc

@@ -9,6 +9,7 @@
 #include <glow/common/scoped_gl.hh>
 #include <glow/common/str_utils.hh>
 
+#include <glow/data/TextureData.hh>
 #include <glow/objects/Framebuffer.hh>
 #include <glow/objects/Texture2D.hh>
 #include <glow/objects/TextureRectangle.hh>
@@ -27,6 +28,15 @@ void LiveApp::init()
     mShaderTerrain = glow::Program::createFromFile(src_folder + "/terrain");
     mShaderOutput = glow::Program::createFromFile(src_folder + "/output");
 
+    mSkyBox = glow::TextureCubeMap::createFromData(glow::TextureData::createFromFileCube( //
+        src_folder + "/../../textures/posx.jpg",                                                         //
+        src_folder + "/../../textures/negx.jpg",                                                         //
+        src_folder + "/../../textures/posy.jpg",                                                         //
+        src_folder + "/../../textures/negy.jpg",                                                         //
+        src_folder + "/../../textures/posz.jpg",                                                         //
+        src_folder + "/../../textures/negz.jpg",                                                         //
+        glow::ColorSpace::sRGB));
+
     mQuad = glow::geometry::Quad<>().generate();
 
     mTargetColor = glow::TextureRectangle::create(1, 1, GL_RGB8);
@@ -77,7 +87,7 @@ void LiveApp::update(float elapsedSeconds)
 {
     // TODO
 
-    auto const speed = 10.f;
+    auto const speed = 50.f;
 
     if (mKeyDownW)
         cam.pos += cam.dir * elapsedSeconds * speed;
@@ -160,6 +170,10 @@ void LiveApp::render(float elapsedSeconds)
     {
         auto shader = mShaderOutput->use();
         shader["uTargetColor"] = mTargetColor;
+        shader["uTargetDepth"] = mTargetDepth;
+        shader["uSkyBox"] = mSkyBox;
+        shader["uInvProj"] = inv_proj;
+        shader["uInvView"] = inv_view;
 
         GLOW_SCOPED(disable, GL_DEPTH_TEST);
         GLOW_SCOPED(disable, GL_CULL_FACE);

rtglive5/src/LiveApp.hh

@@ -7,6 +7,7 @@
 #include <glow/objects/ArrayBuffer.hh>
 #include <glow/objects/Program.hh>
 #include <glow/objects/VertexArray.hh>
+#include <glow/objects/TextureCubeMap.hh>
 
 #include <vector>
 
@@ -65,6 +66,8 @@ class LiveApp : public glow::glfw::GlfwApp
     glow::SharedTextureRectangle mTargetColor;
     glow::SharedTextureRectangle mTargetDepth;
 
+    glow::SharedTextureCubeMap mSkyBox;
+
     int mTerrainSize = 128;
     std::vector<float> mHeightMap;
 

rtglive5/src/output.fsh

 uniform sampler2DRect uTargetColor;
+uniform sampler2DRect uTargetDepth;
+
+uniform samplerCube uSkyBox;
+
+uniform mat4 uInvProj;
+uniform mat4 uInvView;
+
+in vec2 vPosition;
 
 out vec3 fColor;
 
 void main()
 {
+    vec4 near = vec4(vPosition * 2 - 1, -1, 1);
+    vec4 far = vec4(vPosition * 2 - 1, 1, 1);
+    near = uInvProj * near;
+    far = uInvProj * far;
+    near = uInvView * near;
+    far = uInvView * far;
+    near /= near.w;
+    far /= far.w;
+
+    vec3 V = (far - near).xyz;
+
+    float d = texture(uTargetDepth, gl_FragCoord.xy).x;
+
+    if (d == 1)
+        fColor = texture(uSkyBox, V).rgb;
+    else
         fColor = texture(uTargetColor, gl_FragCoord.xy).rgb;
+
 }

rtglive5/src/output.vsh

 in vec2 aPosition;
 
+out vec2 vPosition;
+
 void main()
 {
+    vPosition = aPosition;
     gl_Position = vec4(aPosition * 2 - 1, 0, 1);
 }

textures/README.TXT

+THIS SKY WAS UPDATED AT THE 27TH
+THE ORIG HAD SOME ERRORS
+
+MIRAMAR
+high res 1024^2 environment map
+ships as TGA.
+
+
+By Jockum Skoglund aka hipshot
+hipshot@zfight.com
+www.zfight.com
+Stockholm, 2005 08 25
+
+
+Modify however you like, just cred me for my work, maybe link to my page.