minor changes

dist/scripts/geometry/pointcloud.t

@@ -31,6 +31,15 @@ function PointCloudObject:init(hres, vres)
     self.mat = self.material
 end
 
+function PointCloudObject:setDepthLimits(near, far)
+    local params = self.mat.depthParams
+    local a =  (far*near) / (far-near)
+    local b = -near / (far-near)
+    params.elem.x = a
+    params.elem.y = b
+    log.debug("a: " .. a .. ", b: " .. b)
+end
+
 function PointCloudObject:setPlaneSize(w,h)
     local params = self.mat.pointParams
     params.elem.z = w

dist/scripts/gfx/texture.t

@@ -14,10 +14,10 @@ function MemTexture:init(w,h)
     self.datasize = w*h*4
 
     local bc = bgfx_const
-    local flags = 0
-    -- local flags = bc.BGFX_TEXTURE_MIN_POINT +
-    --               bc.BGFX_TEXTURE_MAG_POINT +
-    --               bc.BGFX_TEXTURE_MIP_POINT
+    --local flags = 0
+    local flags = bc.BGFX_TEXTURE_MIN_POINT +
+                  bc.BGFX_TEXTURE_MAG_POINT +
+                  bc.BGFX_TEXTURE_MIP_POINT
 
     -- Note that we pass in nil as the data to allow us to update this texture
     -- later

dist/scripts/utils/stringutils.t

@@ -41,7 +41,10 @@ function m.splitLines(str)
 end
 
 -- base64 conversion
+local b64lut_ = nil
 function m.createB64LUT_()
+    if b64lut_ ~= nil then return b64lut_ end
+
     local letters = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="
     local ret = terralib.new(uint8[128])
     for i = 0,127 do
@@ -52,9 +55,8 @@ function m.createB64LUT_()
     end
     return ret
 end
-local b64lut_ = nil
 
-terra m.b64decode_terra(src: &int8, srclen: uint32,
+terra m.b64decode_terra(src: &uint8, srclen: uint32,
                         dest: &uint8, destlen: uint32,
                         lut: &uint8) : uint32
     var i: uint32 = 0