Share wall points in buffer, part 1

src/Preload/Render.hs

@@ -30,8 +30,11 @@ preloadRender = do
     wsShad <- makeShader "lighting/occlude" [vert,geom,frag] [4] EPoints pokeWPStrat
                 >>= addUniforms ["lightPos"]
     wlLightShad 
-         <- makeShader "lighting/wall" [vert,geom,frag] [4] EPoints pokeWPStrat
+         <- makeShaderUsingShaderVAO "lighting/wall" [vert,geom,frag] EPoints wsShad
                 >>= addUniforms ["lightPos","radLum"]
+--    wlLightShad 
+--         <- makeShader "lighting/wall" [vert,geom,frag] [4] EPoints pokeWPStrat
+--                >>= addUniforms ["lightPos","radLum"]
     lightingSurfaceShad
          <- makeShader "lighting/surface" [vert,frag] [3] ETriangles poke3
                 >>= addUniforms ["lightPos","radLum"]

src/Render.hs

@@ -69,8 +69,8 @@ createLightMap pdata resDiv wallPoints lightPoints fpics scPol = do
     viewport $= (vppos, vsize)
     textureBinding Texture2D $= Just (snd $ _fboLighting pdata)
     -- store wall and light positions into buffer
-    nWallLights <- F.foldM (pokeShader $ _lightingWallShader pdata) (map Render22 wallPoints)
+--    nWallLights <- F.foldM (pokeShader $ _lightingWallShader pdata) (map Render22 wallPoints)
-    bindShaderBuffers [_lightingWallShader pdata] [nWallLights]
+--    bindShaderBuffers [_lightingWallShader pdata] [nWallLights]
     nWalls <- F.foldM (pokeShader $ _lightingOccludeShader pdata) (map Render22 wallPoints)
     bindShaderBuffers [_lightingOccludeShader pdata] [nWalls]
     -- store foreground silhouette geometry into buffer
@@ -89,7 +89,8 @@ createLightMap pdata resDiv wallPoints lightPoints fpics scPol = do
     cullFace $= Just Back
 -- draw walls from your point of view in order to set z buffer
     currentProgram $= Just (_shaderProgram $ _lightingWallShader pdata)
-    drawShader (_lightingWallShader pdata) nWallLights
+    --drawShader (_lightingWallShader pdata) nWallLights
+    drawShader (_lightingWallShader pdata) nWalls
     --colorMask $= Color4 Disabled Disabled Disabled Disabled
     --currentProgram $= Just (_shaderProgram $ _lightingOccludeShader pdata)
     --uniform (head $  _shaderCustomUnis $ _lightingOccludeShader pdata)
@@ -151,7 +152,8 @@ createLightMap pdata resDiv wallPoints lightPoints fpics scPol = do
             $= Vector3 x y z
         uniform (_shaderCustomUnis (_lightingWallShader pdata) !! 1)
             $= Vector2 r lum
-        drawShader (_lightingWallShader pdata) nWallLights
+        --drawShader (_lightingWallShader pdata) nWallLights
+        drawShader (_lightingWallShader pdata) nWalls
     cullFace $= Nothing
     stencilTest $= Disabled
     blend $= Disabled

src/Shader/Compile.hs

@@ -1,5 +1,6 @@
 module Shader.Compile
     ( makeShader
+    , makeShaderUsingShaderVAO
     , makeSourcedShader
     , setupVAO
     ) where
@@ -13,6 +14,21 @@ import Control.Monad
 --import Control.Lens
 import Graphics.Rendering.OpenGL hiding (Point,translate,scale,imageHeight)
 
+-- | Takes the VAO and poke strategy from another shader
+makeShaderUsingShaderVAO
+    :: String       -- ^ First part of the name of the shader
+    -> [ShaderType] -- ^ Filetype extensions
+    -> EPrimitiveMode
+    -> FullShader
+    -> IO FullShader
+makeShaderUsingShaderVAO s shaderlist pm fs = do
+    prog <- makeSourcedShader s shaderlist
+    return $ fs 
+        {_shaderProgram = prog
+        , _shaderDrawPrimitive = pm
+        , _shaderTexture = Nothing
+        , _shaderCustomUnis = []
+        }
 {- | 
 Compiles a full shader found within the shader directory.
 The shader is made up of files begining with the inputted string with extensions .vert, .geom etc.