From 91a9e02bff0397ec9b1f55fdf61cef72eb0d8a0f Mon Sep 17 00:00:00 2001 From: hwc487 Date: Tue, 8 May 2012 15:53:35 -0700 Subject: Radial gradients to match CSS --- js/lib/rdge/materials/radial-gradient-material.js | 43 ++++++++++++++++++++++- 1 file changed, 42 insertions(+), 1 deletion(-) (limited to 'js/lib/rdge/materials/radial-gradient-material.js') diff --git a/js/lib/rdge/materials/radial-gradient-material.js b/js/lib/rdge/materials/radial-gradient-material.js index dd40d31d..a671ee42 100755 --- a/js/lib/rdge/materials/radial-gradient-material.js +++ b/js/lib/rdge/materials/radial-gradient-material.js @@ -6,6 +6,7 @@ No rights, expressed or implied, whatsoever to this software are provided by Mot var MaterialParser = require("js/lib/rdge/materials/material-parser").MaterialParser; var Material = require("js/lib/rdge/materials/material").Material; +var ShapePrimitive = require("js/lib/geom/shape-primitive").ShapePrimitive; var RadialGradientMaterial = function RadialGradientMaterial() { /////////////////////////////////////////////////////////////////////// @@ -24,6 +25,9 @@ var RadialGradientMaterial = function RadialGradientMaterial() { this._colorStop4 = 1.0; // this._colorCount = 4; + var s = Math.sqrt( 2.0 ); + this._textureTransform = [s,0,0, 0,s,0, 0,0,1]; + /////////////////////////////////////////////////////////////////////// // Property Accessors /////////////////////////////////////////////////////////////////////// @@ -231,9 +235,45 @@ var RadialGradientMaterial = function RadialGradientMaterial() { this._shader['default'].u_colorStop3.set([s]); s = this.getColorStop4(); this._shader['default'].u_colorStop4.set([s]); + + this._shader['default'].u_texTransform.set( this._textureTransform ); } }; + this.fitToPrimitive = function( prim ) + { + var bounds = ShapePrimitive.getBounds( prim ); + if (bounds) + { + var dx = Math.abs( bounds[3] - bounds[0] ), + dy = Math.abs( bounds[4] - bounds[1] ); + if (dy == 0) dy = 1.0; + if (dx == 0) dx = 1.0; + var xScale = 2.0, yScale = 2.0; + if (dx > dy) + yScale *= dy/dx; + else + xScale *= dx/dy; + + // build the matrix - the translation to the origin, the scale, + // and the translation back to the center (hard coded at (0.5, 0.5) for now). + // the matrix is build directly instead of with matrix multiplications + // for efficiency, not to mention that the multiplication function does + // not exist for mat3's. + // the matrix as laid out below looks transposed - order is columnwise. + var xCtr = 0.5, yCtr = 0.5; + this._textureTransform = [ + xScale, 0.0, 0.0, + 0.0, yScale, 0.0, + xCtr*(1-xScale), yCtr*(1 - yScale), 1.0 + ]; + + if (this._shader && this._shader['default']) + this._shader['default'].u_texTransform.set( this._textureTransform ); + + } + }; + this.exportJSON = function () { var jObj = { @@ -316,7 +356,8 @@ var radialGradientMaterialDef = 'u_colorStop1': { 'type': 'float' }, 'u_colorStop2': { 'type': 'float' }, 'u_colorStop3': { 'type': 'float' }, - 'u_colorStop4': { 'type': 'float' } + 'u_colorStop4': { 'type': 'float' }, + 'u_texTransform': { 'type' : 'mat3' } //'u_colorCount': {'type' : 'int' } }, -- cgit v1.2.3 From cb37bee07085690d72e69a82e76cae9166e5f0f1 Mon Sep 17 00:00:00 2001 From: hwc487 Date: Tue, 15 May 2012 16:02:27 -0700 Subject: Gradient matching between WebGL and Canvas2D --- js/lib/rdge/materials/radial-gradient-material.js | 31 ++++++++++++++++------- 1 file changed, 22 insertions(+), 9 deletions(-) (limited to 'js/lib/rdge/materials/radial-gradient-material.js') diff --git a/js/lib/rdge/materials/radial-gradient-material.js b/js/lib/rdge/materials/radial-gradient-material.js index a671ee42..b0b63cee 100755 --- a/js/lib/rdge/materials/radial-gradient-material.js +++ b/js/lib/rdge/materials/radial-gradient-material.js @@ -25,8 +25,7 @@ var RadialGradientMaterial = function RadialGradientMaterial() { this._colorStop4 = 1.0; // this._colorCount = 4; - var s = Math.sqrt( 2.0 ); - this._textureTransform = [s,0,0, 0,s,0, 0,0,1]; + this._textureTransform = [1,0,0, 0,1,0, 0,0,1]; /////////////////////////////////////////////////////////////////////// // Property Accessors @@ -147,9 +146,9 @@ var RadialGradientMaterial = function RadialGradientMaterial() { /////////////////////////////////////////////////////////////////////// // Material Property Accessors /////////////////////////////////////////////////////////////////////// - this._propNames = ["color1", "color2", "color3", "color4", "colorStop1", "colorStop2", "colorStop3", "colorStop4", "angle"]; - this._propLabels = ["Color 1", "Color 2", "Color 3", "Color 4", "Color Stop 1", "Color Stop 2", "Color Stop 3", "Color Stop 4", "Angle"]; - this._propTypes = ["color", "color", "color", "color", "float", "float", "float", "float", "float"]; + this._propNames = ["color1", "color2", "color3", "color4", "colorStop1", "colorStop2", "colorStop3", "colorStop4" ]; + this._propLabels = ["Color 1", "Color 2", "Color 3", "Color 4", "Color Stop 1", "Color Stop 2", "Color Stop 3", "Color Stop 4" ]; + this._propTypes = ["color", "color", "color", "color", "float", "float", "float", "float" ]; this._propValues = []; this._propValues[this._propNames[0]] = this._color1.slice(0); @@ -192,9 +191,21 @@ var RadialGradientMaterial = function RadialGradientMaterial() { // Methods /////////////////////////////////////////////////////////////////////// // duplcate method requirde - this.dup = function () { - return new RadialGradientMaterial(); - }; + this.dup = function () { + // allocate a new material + var newMat = new RadialGradientMaterial(); + + // copy over the current values; + var propNames = [], propValues = [], propTypes = [], propLabels = []; + this.getAllProperties( propNames, propValues, propTypes, propLabels); + var n = propNames.length; + for (var i=0; i