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@@ -38,7 +38,6 @@ THREE.SoftwareRenderer = function ( parameters ) {
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var blockShift = 3;
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var blockSize = 1 << blockShift;
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var maxZVal = (1 << 24); // Note: You want to size this so you don't get overflows.
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- var maxTexCoordVal = 1; // Note: You want to size this so you don't get overflows.
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var rectx1 = Infinity, recty1 = Infinity;
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var rectx2 = 0, recty2 = 0;
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@@ -79,13 +78,11 @@ THREE.SoftwareRenderer = function ( parameters ) {
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viewportXScale = fixScale * canvasWidth / 2;
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viewportYScale = -fixScale * canvasHeight / 2;
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viewportZScale = maxZVal / 2;
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- viewportTexCoordScale = maxTexCoordVal;
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-
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+
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viewportXOffs = fixScale * canvasWidth / 2 + 0.5;
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viewportYOffs = fixScale * canvasHeight / 2 + 0.5;
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viewportZOffs = maxZVal / 2 + 0.5;
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- viewportTexCoordOffs = 0;
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-
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+
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canvas.width = canvasWidth;
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canvas.height = canvasHeight;
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@@ -566,9 +563,12 @@ THREE.SoftwareRenderer = function ( parameters ) {
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// Constant part of half-edge functions
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- var c1 = dy12 * ((minx << subpixelBits) - x1) + dx12 * ((miny << subpixelBits) - y1);
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- var c2 = dy23 * ((minx << subpixelBits) - x2) + dx23 * ((miny << subpixelBits) - y2);
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- var c3 = dy31 * ((minx << subpixelBits) - x3) + dx31 * ((miny << subpixelBits) - y3);
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+ var minXfixscale = (minx << subpixelBits);
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+ var minYfixscale = (miny << subpixelBits);
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+
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+ var c1 = dy12 * ((minXfixscale) - x1) + dx12 * ((minYfixscale) - y1);
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+ var c2 = dy23 * ((minXfixscale) - x2) + dx23 * ((minYfixscale) - y2);
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+ var c3 = dy31 * ((minXfixscale) - x3) + dx31 * ((minYfixscale) - y3);
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// Correct for fill convention
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@@ -591,13 +591,13 @@ THREE.SoftwareRenderer = function ( parameters ) {
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// Z at top/left corner of rast area
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- var cz = ( z1 + ((minx << subpixelBits) - x1) * dzdx + ((miny << subpixelBits) - y1) * dzdy ) | 0;
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+ var cz = ( z1 + ((minXfixscale) - x1) * dzdx + ((minYfixscale) - y1) * dzdy ) | 0;
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// Z pixel steps
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- var zfixscale = (1 << subpixelBits);
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- dzdx = (dzdx * zfixscale) | 0;
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- dzdy = (dzdy * zfixscale) | 0;
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+ var fixscale = (1 << subpixelBits);
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+ dzdx = (dzdx * fixscale) | 0;
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+ dzdy = (dzdy * fixscale) | 0;
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// UV interpolation setup
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@@ -610,19 +610,15 @@ THREE.SoftwareRenderer = function ( parameters ) {
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// UV at top/left corner of rast area
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- var minXfixscale = (minx << subpixelBits);
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- var minYfixscale = (miny << subpixelBits);
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var ctu = ( tu1 + (minXfixscale - x1) * dtudx + (minYfixscale - y1) * dtudy );
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var ctv = ( tv1 + (minXfixscale - x1) * dtvdx + (minYfixscale - y1) * dtvdy );
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// UV pixel steps
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-
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- var tufixscale = (1 << subpixelBits);
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- dtudx = dtudx * tufixscale;
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- dtudy = dtudy * tufixscale;
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- var tvfixscale = (1 << subpixelBits);
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- dtvdx = (dtvdx * tvfixscale);
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- dtvdy = (dtvdy * tvfixscale);
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+
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+ dtudx = dtudx * fixscale;
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+ dtudy = dtudy * fixscale;
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+ dtvdx = (dtvdx * fixscale);
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+ dtvdy = (dtvdy * fixscale);
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// Normal interpolation setup
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@@ -636,8 +632,8 @@ THREE.SoftwareRenderer = function ( parameters ) {
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// UV pixel steps
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- dnzdx = (dnzdx * tvfixscale);
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- dnzdy = (dnzdy * tvfixscale);
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+ dnzdx = (dnzdx * fixscale);
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+ dnzdy = (dnzdy * fixscale);
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// Set up min/max corners
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var qm1 = q - 1; // for convenience
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Mu Daosheng