Bind some fixed texture arrays only once

shader/floor/arrayPos.frag

@@ -5,8 +5,8 @@ layout (location=0) out vec4 fCol;
 layout (location=1) out vec4 fPos;
 layout (location=2) out vec4 normal;
 //layout (binding=0) uniform sampler2DArray tilesetSampler;
-layout (binding=1) uniform sampler2DArray normalSampler;
-layout (binding=2) uniform sampler2DArray diffuseSampler;
+layout (binding=40) uniform sampler2DArray diffuseSampler;
+layout (binding=41) uniform sampler2DArray normalSampler;
 vec2 rotateV2 (float a, vec2 v)
 {
     return vec2(v.x*cos(a) - v.y*sin(a), v.x*sin(a) + v.y*cos(a));

shader/texture/bloomBlur.frag

@@ -5,7 +5,7 @@ const vec2 winSize = vec2 (300.0,300.0);
 // note that the above opening bracket should be the first in this file
 // this is so that the window size can be extracted and the shader recompiled on
 // the fly
-uniform sampler2D screenTexture;
+layout (binding = 0) uniform sampler2D screenTexture;
 const float hOff = 3 / winSize.x;
 const float vOff = 3 / winSize.y;
 //const vec2 off[9] = vec2[]

shader/wall/basic.frag

@@ -8,8 +8,8 @@ in vec4 gPos;
 in vec4 gNorm;
 in vec4 gColor;
 in float gAng;
-layout (binding=1) uniform sampler2DArray normalSampler;
-layout (binding=2) uniform sampler2DArray diffuseSampler;
+layout (binding=40) uniform sampler2DArray diffuseSampler;
+layout (binding=41) uniform sampler2DArray normalSampler;
 vec2 rotateV2 (float a, vec2 v)
 {
     return vec2(v.x*cos(a) - v.y*sin(a), v.x*sin(a) + v.y*cos(a));

shader/wall/texture.frag

@@ -8,8 +8,8 @@ in vec4 gPos;
 in vec4 gNorm;
 in vec4 gColor;
 in float gRot;
-layout (binding=1) uniform sampler2DArray normalSampler;
-layout (binding=2) uniform sampler2DArray diffuseSampler;
+layout (binding=40) uniform sampler2DArray diffuseSampler;
+layout (binding=41) uniform sampler2DArray normalSampler;
 vec2 rotateV2 (float a, vec2 v)
 {
     return vec2(v.x*cos(a) - v.y*sin(a), v.x*sin(a) + v.y*cos(a));

src/Data/Preload/Render.hs

@@ -54,8 +54,8 @@ data RenderData = RenderData
     , _vboShapes :: VBO
     , _floorVBO :: VBO
     , _floorShader :: Shader
-    , _toNormalMaps :: TO
-    , _toDiffuse :: TO
+    , _texaNormalMaps :: TO
+    , _texaDiffuse :: TO
     , _wallVBO :: VBO
     , _wallShader :: Shader
     , _cloudVBO :: VBO

src/Dodge/Render.hs

@@ -179,9 +179,6 @@ doDrawing' win pdata u = do
     --draw floor onto base buffer
     glUseProgram (pdata ^. floorShader . shaderUINT)
     glBindVertexArray $ pdata ^. floorShader . shaderVAO . vaoName
-    glBindTextureUnit 1 (pdata ^. toNormalMaps . unTO)
-    --glTextureParameteri (pdata ^. toNormalMaps . unTO) GL_TEXTURE_BASE_LEVEL 3
-    glBindTextureUnit 2 (pdata ^. toDiffuse . unTO)
     glDrawArrays 
         (_unPrimitiveMode $ pdata ^. floorShader . shaderPrimitive ) 
         0 
@@ -227,7 +224,7 @@ doDrawing' win pdata u = do
     setViewportSize (round winx `div` (2 * resFact)) (round winy `div` (2 * resFact))
     glBindFramebuffer GL_FRAMEBUFFER (_unFBO (fst (_fboHalf1 pdata)))
     glDepthFunc GL_ALWAYS
-    glBindTexture GL_TEXTURE_2D (pdata ^. fboBloom . _2 . unTO)
+    glBindTextureUnit 0 (pdata ^. fboBloom . _2 . unTO)
     glDisable GL_BLEND
     drawShader (_bloomBlurShader pdata) 4
     replicateM_ 9 $ pingPongBetween (_fboHalf1 pdata) (_fboHalf2 pdata) (_bloomBlurShader pdata)

src/Preload/Render.hs

@@ -161,8 +161,10 @@ preloadRender = do
     let floorverxstrd = 8
     floorvbo <- setupVBOStatic floorverxstrd
     floorshader <- makeShader4 "floor/arrayPos" [vert, frag] [4,4] floorverxstrd pmTriangles floorvbo
-    tonormalmap <- initTexture2DArray 3 GL_LINEAR_MIPMAP_LINEAR GL_LINEAR "data/normalMaps/normalArray.png"
     todiffusemap <- initTexture2DArray 3 GL_LINEAR_MIPMAP_LINEAR GL_LINEAR "data/normalMaps/diffuseArray.png"
+    tonormalmap <- initTexture2DArray 3 GL_LINEAR_MIPMAP_LINEAR GL_LINEAR "data/normalMaps/normalArray.png"
+    glBindTextureUnit 40 (todiffusemap ^. unTO)
+    glBindTextureUnit 41 (tonormalmap ^. unTO)
 
     let cloudverxsizes = [4,4,4,4]
     cloudvbo <- setupVBO (sum cloudverxsizes)
@@ -250,8 +252,8 @@ preloadRender = do
             , _vboShapes = shVBO
             , _floorVBO = floorvbo
             , _floorShader = floorshader
-            , _toNormalMaps = tonormalmap
-            , _toDiffuse = todiffusemap
+            , _texaNormalMaps = tonormalmap
+            , _texaDiffuse = todiffusemap
             , _wallVBO = wallvbo
             , _wallShader = wallshader
             , _cloudVBO = cloudvbo