From df9b37429c00a51fc8f9921d5bd7904dc66844a9 Mon Sep 17 00:00:00 2001 From: Stefan Dresselhaus Date: Sat, 4 Jan 2014 23:47:07 +0100 Subject: [PATCH] cameraaaaaaa -.- --- src/Main.hs | 54 ++++++++++++++++++++++++++++++-------------- src/Render/Misc.hs | 17 +++++++------- src/Render/Render.hs | 5 +++- 3 files changed, 50 insertions(+), 26 deletions(-) diff --git a/src/Main.hs b/src/Main.hs index 7c3707b..128bf6e 100644 --- a/src/Main.hs +++ b/src/Main.hs @@ -16,6 +16,7 @@ import Foreign (Ptr, castPtr, nullPtr, sizeOf, with) import Foreign.C (CFloat) import Linear as L import Linear ((!*!)) +import qualified Debug.Trace as T (trace) import qualified Graphics.Rendering.OpenGL.GL as GL import qualified Graphics.Rendering.OpenGL.Raw as GL @@ -23,7 +24,7 @@ import qualified Graphics.UI.GLFW as GLFW import qualified Data.Vector.Storable as V import Map.Map -import Render.Render (initShader) +import Render.Render (initShader, initRendering) import Render.Misc (up, lookAtUniformMatrix4fv, createFrustum, checkError, lookAt) -------------------------------------------------------------------------------- @@ -113,6 +114,7 @@ main = do (fbWidth, fbHeight) <- GLFW.getFramebufferSize win + initRendering --generate map vertices (mapBuffer, vert) <- getMapBufferObject (ci, ni, vi, pi, mi) <- initShader @@ -244,14 +246,14 @@ run = do (x, y) <- liftIO $ GLFW.getCursorPos win let myrot = (x - sodx) / 2 mxrot = (y - sody) / 2 - newXAngle = if newXAngle' > pi then pi else - if newXAngle' < 0 then 0 else + newXAngle = if newXAngle' > 2*pi then 2*pi else + if newXAngle' < -2*pi then -2*pi else newXAngle' - newXAngle' = sodxa - mxrot/100 + newXAngle' = sodxa + mxrot/100 newYAngle = if newYAngle' > 2*pi then newYAngle'-2*pi else if newYAngle' < 0 then newYAngle'+2*pi else newYAngle' - newYAngle' = sodya - myrot/100 + newYAngle' = sodya + myrot/100 put $ state { stateXAngle = newXAngle , stateYAngle = newYAngle @@ -412,20 +414,35 @@ draw = do f = 1000 n = 1 - let perspective = V4 (V4 s 0 0 0) - (V4 0 s 0 0) + let perspective = V4 (V4 (2*s) 0 0 0) + (V4 0 (2*s) 0 0) (V4 0 0 (-((f+n)/(f-n))) (-((2*f*n)/(f-n)))) (V4 0 0 (-1) 0) - !*! - V4 (V4 1 0 0 0) - (V4 0 0 1 0) - (V4 0 1 0 0) - (V4 0 0 0 1) with (distribute $ perspective) $ \ptr -> GL.glUniformMatrix4fv proj 1 0 (castPtr (ptr :: Ptr (M44 CFloat))) + + {-let cam = out !*! roty !*! rotx !*! center + out = V4 (V4 1 0 0 0) + (V4 0 1 0 0) + (V4 0 0 1 (-10)) + (V4 0 0 0 1) + rotx = V4 (V4 1 0 0 0) + (V4 0 (cos xa) (-sin xa) 0) + (V4 0 (sin xa) (cos xa) 0) + (V4 0 0 0 1) + roty = V4 (V4 (cos ya) 0 (-sin ya) 0) + (V4 0 1 0 0) + (V4 (sin ya) 0 (cos ya) 0) + (V4 0 0 0 1) + center = V4 (V4 1 0 0 (-x)) + (V4 1 1 0 0 ) + (V4 0 0 1 (-z)) + (V4 0 0 0 1 ) + (x,z) = (5,5)-} --V.unsafeWith perspective $ \ptr -> GL.glUniformMatrix4fv proj 1 0 ptr - let cam = lookAt (V3 5 0 5) (crot' !* cdist') up + let cam = lookAt (cpos ^+^ at') at' up --cdist !*! crot !*! camat + cpos = -10 *^ normalize (V3 (sin ya) ((cos ya) * (sin xa)) ((cos ya) * (cos xa))) camat = (eye4 & translation .~ V3 (-0.5) (0) (-0.5)) :: M44 CFloat cdist = (eye4 & translation .~ V3 (0) (0) (-10)) :: M44 CFloat crot = (m33_to_m44 $ @@ -433,17 +450,20 @@ draw = do axisAngle (V3 1 0 0) (xa::CFloat)) !*! (fromQuaternion $ - axisAngle (V3 0 1 0) (ya::CFloat)) + axisAngle (V3 0 1 0) ((ya::CFloat) - pi/2)) ) :: M44 CFloat + at' = V3 5 0 5 cdist' = V3 (0) (0) (-10) crot' = ( (fromQuaternion $ - axisAngle (V3 1 0 0) (xa::CFloat)) + axisAngle (V3 0 1 0) (ya::CFloat)) !*! (fromQuaternion $ - axisAngle (V3 0 1 0) (ya::CFloat)) + axisAngle (V3 1 0 0) (xa::CFloat)) ) :: M33 CFloat - --V.unsafeWith model $ \ptr -> GL.glUniformMatrix4fv mmat 1 0 ptr + --V.unsafeWith model $ \ptr -> GL.glUniformMatrix4fv mmat 1 0 ptr -} + putStrLn $ unwords $ "Cam direction:":map show [cpos] + putStrLn $ unwords $ "Cam at:":map show [cpos ^+^ at'] with (distribute $ cam) $ \ptr -> GL.glUniformMatrix4fv mmat 1 0 (castPtr (ptr :: Ptr (M44 CFloat))) GL.bindBuffer GL.ArrayBuffer GL.$= Just map' diff --git a/src/Render/Misc.hs b/src/Render/Misc.hs index e3f0bff..d2758dc 100644 --- a/src/Render/Misc.hs +++ b/src/Render/Misc.hs @@ -128,23 +128,24 @@ infixl 5 >< _ >< _ = error "non-conformat matrix-multiplication" +-- from vmath.h lookAt :: V3 CFloat -> V3 CFloat -> V3 CFloat -> M44 CFloat -lookAt at eye@(V3 ex ey ez) up = +lookAt eye@(V3 ex ey ez) center up = V4 - (V4 xx yx zx 0) - (V4 xy yy zy 0) - (V4 xz yz zz 0) + (V4 xx yx (-zx) 0) + (V4 xy yy (-zy) 0) + (V4 xz yz (-zz) 0) (V4 0 0 0 1) - !*! + !*! V4 (V4 1 0 0 (-ex)) (V4 0 1 0 (-ey)) (V4 0 0 1 (-ez)) (V4 0 0 0 1) where - z@(V3 zx zy zz) = normalize (eye ^-^ at) - x@(V3 xx xy xz) = normalize (cross up z) - y@(V3 yx yy yz) = cross z x + z@(V3 zx zy zz) = normalize (center ^-^ eye) + x@(V3 xx xy xz) = cross z (normalize up) + y@(V3 yx yy yz) = cross x z -- generates 4x4-Projection-Matrix lookAt_ :: (Double, Double, Double) -> (Double, Double, Double) -> (Double, Double, Double) -> [GLfloat] diff --git a/src/Render/Render.hs b/src/Render/Render.hs index e3a7e8d..0de816f 100644 --- a/src/Render/Render.hs +++ b/src/Render/Render.hs @@ -7,12 +7,13 @@ import Foreign.Storable (sizeOf) import Graphics.Rendering.OpenGL.GL.BufferObjects import Graphics.Rendering.OpenGL.GL.Framebuffer (clearColor) import Graphics.Rendering.OpenGL.GL.ObjectName +import Graphics.Rendering.OpenGL.GL.PerFragment import Graphics.Rendering.OpenGL.GL.Shaders import Graphics.Rendering.OpenGL.GL.StateVar import Graphics.Rendering.OpenGL.GL.VertexArrays (Capability (..), vertexAttribArray) import Graphics.Rendering.OpenGL.GL.VertexSpec -import Graphics.Rendering.OpenGL.Raw.Core31.Types (GLfloat) +import Graphics.Rendering.OpenGL.Raw.Core31 import Render.Misc vertexShaderFile :: String @@ -75,4 +76,6 @@ initShader = do initRendering :: IO () initRendering = do clearColor $= Color4 0 0 0 0 + depthFunc $= Just Less + glCullFace gl_BACK checkError "initRendering"